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firebase-ios-sdk/Firestore/Example/Tests/Integration/API/FIRQueryTests.mm
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/*
* Copyright 2017 Google
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#import <FirebaseFirestore/FirebaseFirestore.h>
#import <XCTest/XCTest.h>
#import "Firestore/Example/Tests/Util/FSTEventAccumulator.h"
#import "Firestore/Example/Tests/Util/FSTHelpers.h"
#import "Firestore/Example/Tests/Util/FSTIntegrationTestCase.h"
#import "Firestore/Example/Tests/Util/FSTTestingHooks.h"
// TODO(MIEQ) update these imports with public imports when aggregate types are public
#import "Firestore/Source/API/FIRAggregateQuerySnapshot+Internal.h"
#import "Firestore/Source/API/FIRQuery+Internal.h"
@interface FIRQueryTests : FSTIntegrationTestCase
@end
@implementation FIRQueryTests
- (void)testLimitQueries {
FIRCollectionReference *collRef = [self collectionRefWithDocuments:@{
@"a" : @{@"k" : @"a"},
@"b" : @{@"k" : @"b"},
@"c" : @{@"k" : @"c"}
}];
FIRQuerySnapshot *snapshot = [self readDocumentSetForRef:[collRef queryLimitedTo:2]];
XCTAssertEqualObjects(FIRQuerySnapshotGetData(snapshot), (@[ @{@"k" : @"a"}, @{@"k" : @"b"} ]));
}
- (void)testLimitQueriesWithDescendingSortOrder {
FIRCollectionReference *collRef = [self collectionRefWithDocuments:@{
@"a" : @{@"k" : @"a", @"sort" : @0},
@"b" : @{@"k" : @"b", @"sort" : @1},
@"c" : @{@"k" : @"c", @"sort" : @1},
@"d" : @{@"k" : @"d", @"sort" : @2},
}];
FIRQuerySnapshot *snapshot =
[self readDocumentSetForRef:[[collRef queryOrderedByField:@"sort"
descending:YES] queryLimitedTo:2]];
XCTAssertEqualObjects(FIRQuerySnapshotGetData(snapshot),
(@[ @{@"k" : @"d", @"sort" : @2}, @{@"k" : @"c", @"sort" : @1} ]));
}
- (void)testLimitToLastMustAlsoHaveExplicitOrderBy {
FIRCollectionReference *collRef = [self collectionRefWithDocuments:@{}];
FIRQuery *query = [collRef queryLimitedToLast:2];
FSTAssertThrows([query getDocumentsWithCompletion:^(FIRQuerySnapshot *, NSError *){
}],
@"limit(toLast:) queries require specifying at least one OrderBy() clause.");
}
// Two queries that mapped to the same target ID are referred to as
// "mirror queries". An example for a mirror query is a limitToLast()
// query and a limit() query that share the same backend Target ID.
// Since limitToLast() queries are sent to the backend with a modified
// orderBy() clause, they can map to the same target representation as
// limit() query, even if both queries appear separate to the user.
- (void)testListenUnlistenRelistenSequenceOfMirrorQueries {
FIRCollectionReference *collRef = [self collectionRefWithDocuments:@{
@"a" : @{@"k" : @"a", @"sort" : @0},
@"b" : @{@"k" : @"b", @"sort" : @1},
@"c" : @{@"k" : @"c", @"sort" : @1},
@"d" : @{@"k" : @"d", @"sort" : @2},
}];
// Setup a `limit` query.
FIRQuery *limit = [[collRef queryOrderedByField:@"sort" descending:NO] queryLimitedTo:2];
FSTEventAccumulator *limitAccumulator = [FSTEventAccumulator accumulatorForTest:self];
id<FIRListenerRegistration> limitRegistration =
[limit addSnapshotListener:limitAccumulator.valueEventHandler];
// Setup a mirroring `limitToLast` query.
FIRQuery *limitToLast = [[collRef queryOrderedByField:@"sort"
descending:YES] queryLimitedToLast:2];
FSTEventAccumulator *limitToLastAccumulator = [FSTEventAccumulator accumulatorForTest:self];
id<FIRListenerRegistration> limitToLastRegistration =
[limitToLast addSnapshotListener:limitToLastAccumulator.valueEventHandler];
// Verify both queries get expected result.
FIRQuerySnapshot *snapshot = [limitAccumulator awaitEventWithName:@"Snapshot"];
NSArray *expected = @[ @{@"k" : @"a", @"sort" : @0}, @{@"k" : @"b", @"sort" : @1} ];
XCTAssertEqualObjects(FIRQuerySnapshotGetData(snapshot), expected);
snapshot = [limitToLastAccumulator awaitEventWithName:@"Snapshot"];
expected = @[ @{@"k" : @"b", @"sort" : @1}, @{@"k" : @"a", @"sort" : @0} ];
XCTAssertEqualObjects(FIRQuerySnapshotGetData(snapshot), expected);
// Unlisten then re-listen limit query.
[limitRegistration remove];
[limit addSnapshotListener:[limitAccumulator valueEventHandler]];
// Verify limit query still works.
snapshot = [limitAccumulator awaitEventWithName:@"Snapshot"];
expected = @[ @{@"k" : @"a", @"sort" : @0}, @{@"k" : @"b", @"sort" : @1} ];
XCTAssertEqualObjects(FIRQuerySnapshotGetData(snapshot), expected);
// Add a document that would change the result set.
[self addDocumentRef:collRef data:@{@"k" : @"e", @"sort" : @-1}];
// Verify both queries get expected result.
snapshot = [limitAccumulator awaitEventWithName:@"Snapshot"];
expected = @[ @{@"k" : @"e", @"sort" : @-1}, @{@"k" : @"a", @"sort" : @0} ];
XCTAssertEqualObjects(FIRQuerySnapshotGetData(snapshot), expected);
snapshot = [limitToLastAccumulator awaitEventWithName:@"Snapshot"];
expected = @[ @{@"k" : @"a", @"sort" : @0}, @{@"k" : @"e", @"sort" : @-1} ];
XCTAssertEqualObjects(FIRQuerySnapshotGetData(snapshot), expected);
// Unlisten to limitToLast, update a doc, then relisten to limitToLast
[limitToLastRegistration remove];
[self updateDocumentRef:[collRef documentWithPath:@"a"] data:@{@"k" : @"a", @"sort" : @-2}];
[limitToLast addSnapshotListener:[limitToLastAccumulator valueEventHandler]];
// Verify both queries get expected result.
snapshot = [limitAccumulator awaitEventWithName:@"Snapshot"];
expected = @[ @{@"k" : @"a", @"sort" : @-2}, @{@"k" : @"e", @"sort" : @-1} ];
XCTAssertEqualObjects(FIRQuerySnapshotGetData(snapshot), expected);
snapshot = [limitToLastAccumulator awaitEventWithName:@"Snapshot"];
expected = @[ @{@"k" : @"e", @"sort" : @-1}, @{@"k" : @"a", @"sort" : @-2} ];
XCTAssertEqualObjects(FIRQuerySnapshotGetData(snapshot), expected);
}
- (void)testLimitToLastQueriesWithCursors {
FIRCollectionReference *collRef = [self collectionRefWithDocuments:@{
@"a" : @{@"k" : @"a", @"sort" : @0},
@"b" : @{@"k" : @"b", @"sort" : @1},
@"c" : @{@"k" : @"c", @"sort" : @1},
@"d" : @{@"k" : @"d", @"sort" : @2},
}];
FIRQuerySnapshot *snapshot =
[self readDocumentSetForRef:[[[collRef queryOrderedByField:@"sort"] queryLimitedToLast:3]
queryEndingBeforeValues:@[ @2 ]]];
XCTAssertEqualObjects(
FIRQuerySnapshotGetData(snapshot), (@[
@{@"k" : @"a", @"sort" : @0}, @{@"k" : @"b", @"sort" : @1}, @{@"k" : @"c", @"sort" : @1}
]));
snapshot = [self readDocumentSetForRef:[[[collRef queryOrderedByField:@"sort"]
queryLimitedToLast:3] queryEndingAtValues:@[ @1 ]]];
XCTAssertEqualObjects(
FIRQuerySnapshotGetData(snapshot), (@[
@{@"k" : @"a", @"sort" : @0}, @{@"k" : @"b", @"sort" : @1}, @{@"k" : @"c", @"sort" : @1}
]));
snapshot = [self readDocumentSetForRef:[[[collRef queryOrderedByField:@"sort"]
queryLimitedToLast:3] queryStartingAtValues:@[ @2 ]]];
XCTAssertEqualObjects(FIRQuerySnapshotGetData(snapshot), (@[ @{@"k" : @"d", @"sort" : @2} ]));
snapshot =
[self readDocumentSetForRef:[[[collRef queryOrderedByField:@"sort"] queryLimitedToLast:3]
queryStartingAfterValues:@[ @0 ]]];
XCTAssertEqualObjects(
FIRQuerySnapshotGetData(snapshot), (@[
@{@"k" : @"b", @"sort" : @1}, @{@"k" : @"c", @"sort" : @1}, @{@"k" : @"d", @"sort" : @2}
]));
snapshot =
[self readDocumentSetForRef:[[[collRef queryOrderedByField:@"sort"] queryLimitedToLast:3]
queryStartingAfterValues:@[ @-1 ]]];
XCTAssertEqualObjects(
FIRQuerySnapshotGetData(snapshot), (@[
@{@"k" : @"b", @"sort" : @1}, @{@"k" : @"c", @"sort" : @1}, @{@"k" : @"d", @"sort" : @2}
]));
}
- (void)testKeyOrderIsDescendingForDescendingInequality {
FIRCollectionReference *collRef = [self collectionRefWithDocuments:@{
@"a" : @{@"foo" : @42},
@"b" : @{@"foo" : @42.0},
@"c" : @{@"foo" : @42},
@"d" : @{@"foo" : @21},
@"e" : @{@"foo" : @21.0},
@"f" : @{@"foo" : @66},
@"g" : @{@"foo" : @66.0},
}];
FIRQuerySnapshot *snapshot =
[self readDocumentSetForRef:[[collRef queryWhereField:@"foo"
isGreaterThan:@21] queryOrderedByField:@"foo"
descending:YES]];
XCTAssertEqualObjects(FIRQuerySnapshotGetIDs(snapshot), (@[ @"g", @"f", @"c", @"b", @"a" ]));
}
- (void)testUnaryFilterQueries {
FIRCollectionReference *collRef = [self collectionRefWithDocuments:@{
@"a" : @{@"null" : [NSNull null], @"nan" : @(NAN)},
@"b" : @{@"null" : [NSNull null], @"nan" : @0},
@"c" : @{@"null" : @NO, @"nan" : @(NAN)}
}];
FIRQuerySnapshot *results =
[self readDocumentSetForRef:[[collRef queryWhereField:@"null"
isEqualTo:[NSNull null]] queryWhereField:@"nan"
isEqualTo:@(NAN)]];
XCTAssertEqualObjects(FIRQuerySnapshotGetData(results),
(@[ @{@"null" : [NSNull null], @"nan" : @(NAN)} ]));
}
- (void)testQueryWithFieldPaths {
FIRCollectionReference *collRef = [self
collectionRefWithDocuments:@{@"a" : @{@"a" : @1}, @"b" : @{@"a" : @2}, @"c" : @{@"a" : @3}}];
FIRQuery *query = [collRef queryWhereFieldPath:[[FIRFieldPath alloc] initWithFields:@[ @"a" ]]
isLessThan:@3];
query = [query queryOrderedByFieldPath:[[FIRFieldPath alloc] initWithFields:@[ @"a" ]]
descending:YES];
FIRQuerySnapshot *snapshot = [self readDocumentSetForRef:query];
XCTAssertEqualObjects(FIRQuerySnapshotGetIDs(snapshot), (@[ @"b", @"a" ]));
}
- (void)testQueryWithPredicate {
FIRCollectionReference *collRef = [self
collectionRefWithDocuments:@{@"a" : @{@"a" : @1}, @"b" : @{@"a" : @2}, @"c" : @{@"a" : @3}}];
NSPredicate *predicate = [NSPredicate predicateWithFormat:@"a < 3"];
FIRQuery *query = [collRef queryFilteredUsingPredicate:predicate];
query = [query queryOrderedByFieldPath:[[FIRFieldPath alloc] initWithFields:@[ @"a" ]]
descending:YES];
FIRQuerySnapshot *snapshot = [self readDocumentSetForRef:query];
XCTAssertEqualObjects(FIRQuerySnapshotGetIDs(snapshot), (@[ @"b", @"a" ]));
}
- (void)testFilterOnInfinity {
FIRCollectionReference *collRef = [self collectionRefWithDocuments:@{
@"a" : @{@"inf" : @(INFINITY)},
@"b" : @{@"inf" : @(-INFINITY)}
}];
FIRQuerySnapshot *results = [self readDocumentSetForRef:[collRef queryWhereField:@"inf"
isEqualTo:@(INFINITY)]];
XCTAssertEqualObjects(FIRQuerySnapshotGetData(results), (@[ @{@"inf" : @(INFINITY)} ]));
}
- (void)testCanExplicitlySortByDocumentID {
NSDictionary *testDocs = @{
@"a" : @{@"key" : @"a"},
@"b" : @{@"key" : @"b"},
@"c" : @{@"key" : @"c"},
};
FIRCollectionReference *collection = [self collectionRefWithDocuments:testDocs];
// Ideally this would be descending to validate it's different than
// the default, but that requires an extra index
FIRQuerySnapshot *docs =
[self readDocumentSetForRef:[collection queryOrderedByFieldPath:[FIRFieldPath documentID]]];
XCTAssertEqualObjects(FIRQuerySnapshotGetData(docs),
(@[ testDocs[@"a"], testDocs[@"b"], testDocs[@"c"] ]));
}
- (void)testCanQueryByDocumentID {
NSDictionary *testDocs = @{
@"aa" : @{@"key" : @"aa"},
@"ab" : @{@"key" : @"ab"},
@"ba" : @{@"key" : @"ba"},
@"bb" : @{@"key" : @"bb"},
};
FIRCollectionReference *collection = [self collectionRefWithDocuments:testDocs];
FIRQuerySnapshot *docs =
[self readDocumentSetForRef:[collection queryWhereFieldPath:[FIRFieldPath documentID]
isEqualTo:@"ab"]];
XCTAssertEqualObjects(FIRQuerySnapshotGetData(docs), (@[ testDocs[@"ab"] ]));
}
- (void)testCanQueryByDocumentIDs {
NSDictionary *testDocs = @{
@"aa" : @{@"key" : @"aa"},
@"ab" : @{@"key" : @"ab"},
@"ba" : @{@"key" : @"ba"},
@"bb" : @{@"key" : @"bb"},
};
FIRCollectionReference *collection = [self collectionRefWithDocuments:testDocs];
FIRQuerySnapshot *docs =
[self readDocumentSetForRef:[collection queryWhereFieldPath:[FIRFieldPath documentID]
isEqualTo:@"ab"]];
XCTAssertEqualObjects(FIRQuerySnapshotGetData(docs), (@[ testDocs[@"ab"] ]));
docs = [self readDocumentSetForRef:[[collection queryWhereFieldPath:[FIRFieldPath documentID]
isGreaterThan:@"aa"]
queryWhereFieldPath:[FIRFieldPath documentID]
isLessThanOrEqualTo:@"ba"]];
XCTAssertEqualObjects(FIRQuerySnapshotGetData(docs), (@[ testDocs[@"ab"], testDocs[@"ba"] ]));
}
- (void)testCanQueryByDocumentIDsUsingRefs {
NSDictionary *testDocs = @{
@"aa" : @{@"key" : @"aa"},
@"ab" : @{@"key" : @"ab"},
@"ba" : @{@"key" : @"ba"},
@"bb" : @{@"key" : @"bb"},
};
FIRCollectionReference *collection = [self collectionRefWithDocuments:testDocs];
FIRQuerySnapshot *docs = [self
readDocumentSetForRef:[collection queryWhereFieldPath:[FIRFieldPath documentID]
isEqualTo:[collection documentWithPath:@"ab"]]];
XCTAssertEqualObjects(FIRQuerySnapshotGetData(docs), (@[ testDocs[@"ab"] ]));
docs = [self
readDocumentSetForRef:[[collection queryWhereFieldPath:[FIRFieldPath documentID]
isGreaterThan:[collection documentWithPath:@"aa"]]
queryWhereFieldPath:[FIRFieldPath documentID]
isLessThanOrEqualTo:[collection documentWithPath:@"ba"]]];
XCTAssertEqualObjects(FIRQuerySnapshotGetData(docs), (@[ testDocs[@"ab"], testDocs[@"ba"] ]));
}
- (void)testWatchSurvivesNetworkDisconnect {
XCTestExpectation *testExpectiation =
[self expectationWithDescription:@"testWatchSurvivesNetworkDisconnect"];
FIRCollectionReference *collectionRef = [self collectionRef];
FIRDocumentReference *docRef = [collectionRef documentWithAutoID];
FIRFirestore *firestore = collectionRef.firestore;
[collectionRef
addSnapshotListenerWithIncludeMetadataChanges:YES
listener:^(FIRQuerySnapshot *snapshot, NSError *error) {
XCTAssertNil(error);
if (!snapshot.empty && !snapshot.metadata.fromCache) {
[testExpectiation fulfill];
}
}];
[firestore disableNetworkWithCompletion:^(NSError *error) {
XCTAssertNil(error);
[docRef setData:@{@"foo" : @"bar"}];
[firestore enableNetworkWithCompletion:^(NSError *error) {
XCTAssertNil(error);
}];
}];
[self awaitExpectations];
}
- (void)testQueriesFireFromCacheWhenOffline {
NSDictionary *testDocs = @{
@"a" : @{@"foo" : @1},
};
FIRCollectionReference *collection = [self collectionRefWithDocuments:testDocs];
id<FIRListenerRegistration> registration = [collection
addSnapshotListenerWithIncludeMetadataChanges:YES
listener:self.eventAccumulator.valueEventHandler];
FIRQuerySnapshot *querySnap = [self.eventAccumulator awaitEventWithName:@"initial event"];
XCTAssertEqualObjects(FIRQuerySnapshotGetData(querySnap), @[ @{@"foo" : @1} ]);
XCTAssertEqual(querySnap.metadata.isFromCache, NO);
[self disableNetwork];
querySnap = [self.eventAccumulator awaitEventWithName:@"offline event with isFromCache=YES"];
XCTAssertEqual(querySnap.metadata.isFromCache, YES);
[self enableNetwork];
querySnap = [self.eventAccumulator awaitEventWithName:@"back online event with isFromCache=NO"];
XCTAssertEqual(querySnap.metadata.isFromCache, NO);
[registration remove];
}
- (void)testQueriesCanRaiseInitialSnapshotFromCachedEmptyResults {
FIRCollectionReference *collection = [self collectionRefWithDocuments:@{}];
// Populate the cache with empty query result.
FIRQuerySnapshot *querySnapshotA = [self readDocumentSetForRef:collection];
XCTAssertFalse(querySnapshotA.metadata.fromCache);
XCTAssertEqualObjects(FIRQuerySnapshotGetData(querySnapshotA), @[]);
// Add a snapshot listener whose first event should be raised from cache.
id<FIRListenerRegistration> registration = [collection
addSnapshotListenerWithIncludeMetadataChanges:YES
listener:self.eventAccumulator.valueEventHandler];
FIRQuerySnapshot *querySnapshotB = [self.eventAccumulator awaitEventWithName:@"initial event"];
XCTAssertTrue(querySnapshotB.metadata.fromCache);
XCTAssertEqualObjects(FIRQuerySnapshotGetData(querySnapshotB), @[]);
[registration remove];
}
- (void)testQueriesCanRaiseInitialSnapshotFromEmptyDueToDeleteCachedResults {
NSDictionary *testDocs = @{
@"a" : @{@"foo" : @1},
};
FIRCollectionReference *collection = [self collectionRefWithDocuments:testDocs];
// Populate the cache with a single document.
FIRQuerySnapshot *querySnapshotA = [self readDocumentSetForRef:collection];
XCTAssertFalse(querySnapshotA.metadata.fromCache);
XCTAssertEqualObjects(FIRQuerySnapshotGetData(querySnapshotA), @[ @{@"foo" : @1} ]);
// Delete the document, making the cached query result empty.
FIRDocumentReference *docRef = [collection documentWithPath:@"a"];
[self deleteDocumentRef:docRef];
// Add a snapshot listener whose first event should be raised from cache.
id<FIRListenerRegistration> registration = [collection
addSnapshotListenerWithIncludeMetadataChanges:YES
listener:self.eventAccumulator.valueEventHandler];
FIRQuerySnapshot *querySnapshotB = [self.eventAccumulator awaitEventWithName:@"initial event"];
XCTAssertTrue(querySnapshotB.metadata.fromCache);
XCTAssertEqualObjects(FIRQuerySnapshotGetData(querySnapshotB), @[]);
[registration remove];
}
- (void)testDocumentChangesUseNSNotFound {
NSDictionary *testDocs = @{
@"a" : @{@"foo" : @1},
};
FIRCollectionReference *collection = [self collectionRefWithDocuments:testDocs];
id<FIRListenerRegistration> registration =
[collection addSnapshotListener:self.eventAccumulator.valueEventHandler];
FIRQuerySnapshot *querySnap = [self.eventAccumulator awaitEventWithName:@"initial event"];
XCTAssertEqual(querySnap.documentChanges.count, 1ul);
FIRDocumentChange *change = querySnap.documentChanges[0];
XCTAssertEqual(change.oldIndex, NSNotFound);
XCTAssertEqual(change.newIndex, 0ul);
FIRDocumentReference *doc = change.document.reference;
[self deleteDocumentRef:doc];
querySnap = [self.eventAccumulator awaitEventWithName:@"delete"];
XCTAssertEqual(querySnap.documentChanges.count, 1ul);
change = querySnap.documentChanges[0];
XCTAssertEqual(change.oldIndex, 0ul);
XCTAssertEqual(change.newIndex, NSNotFound);
[registration remove];
}
- (void)testCanHaveMultipleMutationsWhileOffline {
FIRCollectionReference *col = [self collectionRef];
// set a few docs to known values
NSDictionary *initialDocs = @{@"doc1" : @{@"key1" : @"value1"}, @"doc2" : @{@"key2" : @"value2"}};
[self writeAllDocuments:initialDocs toCollection:col];
// go offline for the rest of this test
[self disableNetwork];
// apply *multiple* mutations while offline
[[col documentWithPath:@"doc1"] setData:@{@"key1b" : @"value1b"}];
[[col documentWithPath:@"doc2"] setData:@{@"key2b" : @"value2b"}];
FIRQuerySnapshot *result = [self readDocumentSetForRef:col];
XCTAssertEqualObjects(FIRQuerySnapshotGetData(result), (@[
@{@"key1b" : @"value1b"},
@{@"key2b" : @"value2b"},
]));
}
- (void)testQueriesCanUseNotEqualFilters {
// These documents are ordered by value in "zip" since notEquals filter is an inequality, which
// results in documents being sorted by value.
NSDictionary *testDocs = @{
@"a" : @{@"zip" : @(NAN)},
@"b" : @{@"zip" : @91102},
@"c" : @{@"zip" : @98101},
@"d" : @{@"zip" : @98103},
@"e" : @{@"zip" : @[ @98101 ]},
@"f" : @{@"zip" : @[ @98101, @98102 ]},
@"g" : @{@"zip" : @[ @"98101", @{@"zip" : @98101} ]},
@"h" : @{@"zip" : @{@"code" : @500}},
@"i" : @{@"zip" : [NSNull null]},
@"j" : @{@"code" : @500},
};
FIRCollectionReference *collection = [self collectionRefWithDocuments:testDocs];
// Search for zips not matching 98101.
FIRQuerySnapshot *snapshot = [self readDocumentSetForRef:[collection queryWhereField:@"zip"
isNotEqualTo:@98101]];
XCTAssertEqualObjects(FIRQuerySnapshotGetData(snapshot), (@[
testDocs[@"a"], testDocs[@"b"], testDocs[@"d"], testDocs[@"e"],
testDocs[@"f"], testDocs[@"g"], testDocs[@"h"]
]));
// With objects.
snapshot = [self readDocumentSetForRef:[collection queryWhereField:@"zip"
isNotEqualTo:@{@"code" : @500}]];
XCTAssertEqualObjects(FIRQuerySnapshotGetData(snapshot), (@[
testDocs[@"a"], testDocs[@"b"], testDocs[@"c"], testDocs[@"d"],
testDocs[@"e"], testDocs[@"f"], testDocs[@"g"]
]));
// With null.
snapshot = [self readDocumentSetForRef:[collection queryWhereField:@"zip"
isNotEqualTo:@[ [NSNull null] ]]];
XCTAssertEqualObjects(FIRQuerySnapshotGetData(snapshot), (@[
testDocs[@"a"], testDocs[@"b"], testDocs[@"c"], testDocs[@"d"],
testDocs[@"e"], testDocs[@"f"], testDocs[@"g"], testDocs[@"h"]
]));
// With NAN.
snapshot = [self readDocumentSetForRef:[collection queryWhereField:@"zip" isNotEqualTo:@(NAN)]];
XCTAssertEqualObjects(FIRQuerySnapshotGetData(snapshot), (@[
testDocs[@"b"], testDocs[@"c"], testDocs[@"d"], testDocs[@"e"],
testDocs[@"f"], testDocs[@"g"], testDocs[@"h"]
]));
}
- (void)testQueriesCanUseNotEqualFiltersWithDocIds {
NSDictionary *testDocs = @{
@"aa" : @{@"key" : @"aa"},
@"ab" : @{@"key" : @"ab"},
@"ba" : @{@"key" : @"ba"},
@"bb" : @{@"key" : @"bb"},
};
FIRCollectionReference *collection = [self collectionRefWithDocuments:testDocs];
FIRQuerySnapshot *snapshot =
[self readDocumentSetForRef:[collection queryWhereFieldPath:[FIRFieldPath documentID]
isNotEqualTo:@"aa"]];
XCTAssertEqualObjects(FIRQuerySnapshotGetData(snapshot),
(@[ testDocs[@"ab"], testDocs[@"ba"], testDocs[@"bb"] ]));
}
- (void)testQueriesCanUseArrayContainsFilters {
NSDictionary *testDocs = @{
@"a" : @{@"array" : @[ @42 ]},
@"b" : @{@"array" : @[ @"a", @42, @"c" ]},
@"c" : @{@"array" : @[ @41.999, @"42", @{@"a" : @[ @42 ]} ]},
@"d" : @{@"array" : @[ @42 ], @"array2" : @[ @"bingo" ]},
@"e" : @{@"array" : @[ [NSNull null] ]},
@"f" : @{@"array" : @[ @(NAN) ]},
};
FIRCollectionReference *collection = [self collectionRefWithDocuments:testDocs];
// Search for 42
FIRQuerySnapshot *snapshot = [self readDocumentSetForRef:[collection queryWhereField:@"array"
arrayContains:@42]];
XCTAssertEqualObjects(FIRQuerySnapshotGetData(snapshot),
(@[ testDocs[@"a"], testDocs[@"b"], testDocs[@"d"] ]));
// With null.
snapshot = [self readDocumentSetForRef:[collection queryWhereField:@"array"
arrayContains:[NSNull null]]];
XCTAssertTrue(snapshot.isEmpty);
// With NAN.
snapshot = [self readDocumentSetForRef:[collection queryWhereField:@"array"
arrayContains:@(NAN)]];
XCTAssertTrue(snapshot.isEmpty);
}
- (void)testQueriesCanUseInFilters {
NSDictionary *testDocs = @{
@"a" : @{@"zip" : @98101},
@"b" : @{@"zip" : @91102},
@"c" : @{@"zip" : @98103},
@"d" : @{@"zip" : @[ @98101 ]},
@"e" : @{@"zip" : @[ @"98101", @{@"zip" : @98101} ]},
@"f" : @{@"zip" : @{@"code" : @500}},
@"g" : @{@"zip" : @[ @98101, @98102 ]},
@"h" : @{@"zip" : [NSNull null]},
@"i" : @{@"zip" : @(NAN)}
};
FIRCollectionReference *collection = [self collectionRefWithDocuments:testDocs];
// Search for zips matching 98101, 98103, and [98101, 98102].
FIRQuerySnapshot *snapshot = [self
readDocumentSetForRef:[collection queryWhereField:@"zip"
in:@[ @98101, @98103, @[ @98101, @98102 ] ]]];
XCTAssertEqualObjects(FIRQuerySnapshotGetData(snapshot),
(@[ testDocs[@"a"], testDocs[@"c"], testDocs[@"g"] ]));
// With objects
snapshot = [self readDocumentSetForRef:[collection queryWhereField:@"zip"
in:@[ @{@"code" : @500} ]]];
XCTAssertEqualObjects(FIRQuerySnapshotGetData(snapshot), (@[ testDocs[@"f"] ]));
// With null.
snapshot = [self readDocumentSetForRef:[collection queryWhereField:@"zip" in:@[ [NSNull null] ]]];
XCTAssertTrue(snapshot.isEmpty);
// With null and a value.
snapshot = [self readDocumentSetForRef:[collection queryWhereField:@"zip"
in:@[ [NSNull null], @98101 ]]];
XCTAssertEqualObjects(FIRQuerySnapshotGetData(snapshot), (@[ testDocs[@"a"] ]));
// With NAN.
snapshot = [self readDocumentSetForRef:[collection queryWhereField:@"zip" in:@[ @(NAN) ]]];
XCTAssertTrue(snapshot.isEmpty);
// With NAN and a value.
snapshot = [self readDocumentSetForRef:[collection queryWhereField:@"zip"
in:@[ @(NAN), @98101 ]]];
XCTAssertEqualObjects(FIRQuerySnapshotGetData(snapshot), (@[ testDocs[@"a"] ]));
}
- (void)testQueriesCanUseInFiltersWithDocIds {
NSDictionary *testDocs = @{
@"aa" : @{@"key" : @"aa"},
@"ab" : @{@"key" : @"ab"},
@"ba" : @{@"key" : @"ba"},
@"bb" : @{@"key" : @"bb"},
};
FIRCollectionReference *collection = [self collectionRefWithDocuments:testDocs];
FIRQuerySnapshot *snapshot =
[self readDocumentSetForRef:[collection queryWhereFieldPath:[FIRFieldPath documentID]
in:@[ @"aa", @"ab" ]]];
XCTAssertEqualObjects(FIRQuerySnapshotGetData(snapshot), (@[ testDocs[@"aa"], testDocs[@"ab"] ]));
}
- (void)testQueriesCanUseNotInFilters {
// These documents are ordered by value in "zip" since the NOT_IN filter is an inequality, which
// results in documents being sorted by value.
NSDictionary *testDocs = @{
@"a" : @{@"zip" : @(NAN)},
@"b" : @{@"zip" : @91102},
@"c" : @{@"zip" : @98101},
@"d" : @{@"zip" : @98103},
@"e" : @{@"zip" : @[ @98101 ]},
@"f" : @{@"zip" : @[ @98101, @98102 ]},
@"g" : @{@"zip" : @[ @"98101", @{@"zip" : @98101} ]},
@"h" : @{@"zip" : @{@"code" : @500}},
@"i" : @{@"zip" : [NSNull null]},
@"j" : @{@"code" : @500},
};
FIRCollectionReference *collection = [self collectionRefWithDocuments:testDocs];
// Search for zips not matching 98101, 98103, and [98101, 98102].
FIRQuerySnapshot *snapshot = [self
readDocumentSetForRef:[collection queryWhereField:@"zip"
notIn:@[ @98101, @98103, @[ @98101, @98102 ] ]]];
XCTAssertEqualObjects(
FIRQuerySnapshotGetData(snapshot),
(@[ testDocs[@"a"], testDocs[@"b"], testDocs[@"e"], testDocs[@"g"], testDocs[@"h"] ]));
// With objects.
snapshot = [self readDocumentSetForRef:[collection queryWhereField:@"zip"
notIn:@[ @{@"code" : @500} ]]];
XCTAssertEqualObjects(FIRQuerySnapshotGetData(snapshot), (@[
testDocs[@"a"], testDocs[@"b"], testDocs[@"c"], testDocs[@"d"],
testDocs[@"e"], testDocs[@"f"], testDocs[@"g"]
]));
// With null.
snapshot = [self readDocumentSetForRef:[collection queryWhereField:@"zip"
notIn:@[ [NSNull null] ]]];
XCTAssertTrue(snapshot.isEmpty);
// With NAN.
snapshot = [self readDocumentSetForRef:[collection queryWhereField:@"zip" notIn:@[ @(NAN) ]]];
XCTAssertEqualObjects(FIRQuerySnapshotGetData(snapshot), (@[
testDocs[@"b"], testDocs[@"c"], testDocs[@"d"], testDocs[@"e"],
testDocs[@"f"], testDocs[@"g"], testDocs[@"h"]
]));
// With NAN and a number.
snapshot = [self readDocumentSetForRef:[collection queryWhereField:@"zip"
notIn:@[ @(NAN), @98101 ]]];
XCTAssertEqualObjects(FIRQuerySnapshotGetData(snapshot), (@[
testDocs[@"b"], testDocs[@"d"], testDocs[@"e"], testDocs[@"f"],
testDocs[@"g"], testDocs[@"h"]
]));
}
- (void)testQueriesCanUseNotInFiltersWithDocIds {
NSDictionary *testDocs = @{
@"aa" : @{@"key" : @"aa"},
@"ab" : @{@"key" : @"ab"},
@"ba" : @{@"key" : @"ba"},
@"bb" : @{@"key" : @"bb"},
};
FIRCollectionReference *collection = [self collectionRefWithDocuments:testDocs];
FIRQuerySnapshot *snapshot =
[self readDocumentSetForRef:[collection queryWhereFieldPath:[FIRFieldPath documentID]
notIn:@[ @"aa", @"ab" ]]];
XCTAssertEqualObjects(FIRQuerySnapshotGetData(snapshot), (@[ testDocs[@"ba"], testDocs[@"bb"] ]));
}
- (void)testQueriesCanUseArrayContainsAnyFilters {
NSDictionary *testDocs = @{
@"a" : @{@"array" : @[ @42 ]},
@"b" : @{@"array" : @[ @"a", @42, @"c" ]},
@"c" : @{@"array" : @[ @41.999, @"42", @{@"a" : @[ @42 ]} ]},
@"d" : @{@"array" : @[ @42 ], @"array2" : @[ @"bingo" ]},
@"e" : @{@"array" : @[ @43 ]},
@"f" : @{@"array" : @[ @{@"a" : @42} ]},
@"g" : @{@"array" : @42},
@"h" : @{@"array" : @[ [NSNull null] ]},
@"i" : @{@"array" : @[ @(NAN) ]},
};
FIRCollectionReference *collection = [self collectionRefWithDocuments:testDocs];
// Search for zips matching [42, 43].
FIRQuerySnapshot *snapshot = [self
readDocumentSetForRef:[collection queryWhereField:@"array" arrayContainsAny:@[ @42, @43 ]]];
XCTAssertEqualObjects(FIRQuerySnapshotGetData(snapshot),
(@[ testDocs[@"a"], testDocs[@"b"], testDocs[@"d"], testDocs[@"e"] ]));
// With objects.
snapshot = [self readDocumentSetForRef:[collection queryWhereField:@"array"
arrayContainsAny:@[ @{@"a" : @42} ]]];
XCTAssertEqualObjects(FIRQuerySnapshotGetData(snapshot), (@[
testDocs[@"f"],
]));
// With null.
snapshot = [self readDocumentSetForRef:[collection queryWhereField:@"array"
arrayContainsAny:@[ [NSNull null] ]]];
XCTAssertTrue(snapshot.isEmpty);
// With null and a value.
snapshot = [self readDocumentSetForRef:[collection queryWhereField:@"array"
arrayContainsAny:@[ [NSNull null], @43 ]]];
XCTAssertEqualObjects(FIRQuerySnapshotGetData(snapshot), (@[ testDocs[@"e"] ]));
// With NAN.
snapshot = [self readDocumentSetForRef:[collection queryWhereField:@"array"
arrayContainsAny:@[ @(NAN) ]]];
XCTAssertTrue(snapshot.isEmpty);
// With NAN and a value.
snapshot = [self readDocumentSetForRef:[collection queryWhereField:@"array"
arrayContainsAny:@[ @(NAN), @43 ]]];
XCTAssertEqualObjects(FIRQuerySnapshotGetData(snapshot), (@[ testDocs[@"e"] ]));
}
- (void)testCollectionGroupQueries {
// Use .document() to get a random collection group name to use but ensure it starts with 'b'
// for predictable ordering.
NSString *collectionGroup = [NSString
stringWithFormat:@"b%@", [[self.db collectionWithPath:@"foo"] documentWithAutoID].documentID];
NSArray *docPaths = @[
@"abc/123/${collectionGroup}/cg-doc1", @"abc/123/${collectionGroup}/cg-doc2",
@"${collectionGroup}/cg-doc3", @"${collectionGroup}/cg-doc4",
@"def/456/${collectionGroup}/cg-doc5", @"${collectionGroup}/virtual-doc/nested-coll/not-cg-doc",
@"x${collectionGroup}/not-cg-doc", @"${collectionGroup}x/not-cg-doc",
@"abc/123/${collectionGroup}x/not-cg-doc", @"abc/123/x${collectionGroup}/not-cg-doc",
@"abc/${collectionGroup}"
];
FIRWriteBatch *batch = [self.db batch];
for (NSString *docPath in docPaths) {
NSString *path = [docPath stringByReplacingOccurrencesOfString:@"${collectionGroup}"
withString:collectionGroup];
[batch setData:@{@"x" : @1} forDocument:[self.db documentWithPath:path]];
}
[self commitWriteBatch:batch];
FIRQuerySnapshot *querySnapshot =
[self readDocumentSetForRef:[self.db collectionGroupWithID:collectionGroup]];
NSArray<NSString *> *ids = FIRQuerySnapshotGetIDs(querySnapshot);
XCTAssertEqualObjects(ids, (@[ @"cg-doc1", @"cg-doc2", @"cg-doc3", @"cg-doc4", @"cg-doc5" ]));
}
- (void)testCollectionGroupQueriesWithStartAtEndAtWithArbitraryDocumentIDs {
// Use .document() to get a random collection group name to use but ensure it starts with 'b'
// for predictable ordering.
NSString *collectionGroup = [NSString
stringWithFormat:@"b%@", [[self.db collectionWithPath:@"foo"] documentWithAutoID].documentID];
NSArray *docPaths = @[
@"a/a/${collectionGroup}/cg-doc1", @"a/b/a/b/${collectionGroup}/cg-doc2",
@"a/b/${collectionGroup}/cg-doc3", @"a/b/c/d/${collectionGroup}/cg-doc4",
@"a/c/${collectionGroup}/cg-doc5", @"${collectionGroup}/cg-doc6", @"a/b/nope/nope"
];
FIRWriteBatch *batch = [self.db batch];
for (NSString *docPath in docPaths) {
NSString *path = [docPath stringByReplacingOccurrencesOfString:@"${collectionGroup}"
withString:collectionGroup];
[batch setData:@{@"x" : @1} forDocument:[self.db documentWithPath:path]];
}
[self commitWriteBatch:batch];
FIRQuerySnapshot *querySnapshot = [self
readDocumentSetForRef:[[[[self.db collectionGroupWithID:collectionGroup]
queryOrderedByFieldPath:[FIRFieldPath documentID]]
queryStartingAfterValues:@[ @"a/b" ]]
queryEndingBeforeValues:@[
[NSString stringWithFormat:@"a/b/%@/cg-doc3", collectionGroup]
]]];
NSArray<NSString *> *ids = FIRQuerySnapshotGetIDs(querySnapshot);
XCTAssertEqualObjects(ids, (@[ @"cg-doc2" ]));
}
- (void)testCollectionGroupQueriesWithWhereFiltersOnArbitraryDocumentIDs {
// Use .document() to get a random collection group name to use but ensure it starts with 'b'
// for predictable ordering.
NSString *collectionGroup = [NSString
stringWithFormat:@"b%@", [[self.db collectionWithPath:@"foo"] documentWithAutoID].documentID];
NSArray *docPaths = @[
@"a/a/${collectionGroup}/cg-doc1", @"a/b/a/b/${collectionGroup}/cg-doc2",
@"a/b/${collectionGroup}/cg-doc3", @"a/b/c/d/${collectionGroup}/cg-doc4",
@"a/c/${collectionGroup}/cg-doc5", @"${collectionGroup}/cg-doc6", @"a/b/nope/nope"
];
FIRWriteBatch *batch = [self.db batch];
for (NSString *docPath in docPaths) {
NSString *path = [docPath stringByReplacingOccurrencesOfString:@"${collectionGroup}"
withString:collectionGroup];
[batch setData:@{@"x" : @1} forDocument:[self.db documentWithPath:path]];
}
[self commitWriteBatch:batch];
FIRQuerySnapshot *querySnapshot = [self
readDocumentSetForRef:[[[self.db collectionGroupWithID:collectionGroup]
queryWhereFieldPath:[FIRFieldPath documentID]
isGreaterThanOrEqualTo:@"a/b"]
queryWhereFieldPath:[FIRFieldPath documentID]
isLessThan:[NSString stringWithFormat:@"a/b/%@/cg-doc3",
collectionGroup]]];
NSArray<NSString *> *ids = FIRQuerySnapshotGetIDs(querySnapshot);
XCTAssertEqualObjects(ids, (@[ @"cg-doc2" ]));
}
- (void)testOrQueries {
FIRCollectionReference *collRef = [self collectionRefWithDocuments:@{
@"doc1" : @{@"a" : @1, @"b" : @0},
@"doc2" : @{@"a" : @2, @"b" : @1},
@"doc3" : @{@"a" : @3, @"b" : @2},
@"doc4" : @{@"a" : @1, @"b" : @3},
@"doc5" : @{@"a" : @1, @"b" : @1}
}];
// Two equalities: a==1 || b==1.
FIRFilter *filter1 = [FIRFilter orFilterWithFilters:@[
[FIRFilter filterWhereField:@"a" isEqualTo:@1], [FIRFilter filterWhereField:@"b" isEqualTo:@1]
]];
[self checkOnlineAndOfflineQuery:[collRef queryWhereFilter:filter1]
matchesResult:@[ @"doc1", @"doc2", @"doc4", @"doc5" ]];
// (a==1 && b==0) || (a==3 && b==2)
FIRFilter *filter2 = [FIRFilter orFilterWithFilters:@[
[FIRFilter andFilterWithFilters:@[
[FIRFilter filterWhereField:@"a" isEqualTo:@1], [FIRFilter filterWhereField:@"b" isEqualTo:@0]
]],
[FIRFilter andFilterWithFilters:@[
[FIRFilter filterWhereField:@"a" isEqualTo:@3], [FIRFilter filterWhereField:@"b" isEqualTo:@2]
]]
]];
[self checkOnlineAndOfflineQuery:[collRef queryWhereFilter:filter2]
matchesResult:@[ @"doc1", @"doc3" ]];
// a==1 && (b==0 || b==3).
FIRFilter *filter3 = [FIRFilter andFilterWithFilters:@[
[FIRFilter filterWhereField:@"a" isEqualTo:@1], [FIRFilter orFilterWithFilters:@[
[FIRFilter filterWhereField:@"b" isEqualTo:@0], [FIRFilter filterWhereField:@"b" isEqualTo:@3]
]]
]];
[self checkOnlineAndOfflineQuery:[collRef queryWhereFilter:filter3]
matchesResult:@[ @"doc1", @"doc4" ]];
// (a==2 || b==2) && (a==3 || b==3)
FIRFilter *filter4 = [FIRFilter andFilterWithFilters:@[
[FIRFilter orFilterWithFilters:@[
[FIRFilter filterWhereField:@"a" isEqualTo:@2], [FIRFilter filterWhereField:@"b" isEqualTo:@2]
]],
[FIRFilter orFilterWithFilters:@[
[FIRFilter filterWhereField:@"a" isEqualTo:@3], [FIRFilter filterWhereField:@"b" isEqualTo:@3]
]]
]];
[self checkOnlineAndOfflineQuery:[collRef queryWhereFilter:filter4] matchesResult:@[ @"doc3" ]];
// Test with limits without orderBy (the __name__ ordering is the tie breaker).
FIRFilter *filter5 = [FIRFilter orFilterWithFilters:@[
[FIRFilter filterWhereField:@"a" isEqualTo:@2], [FIRFilter filterWhereField:@"b" isEqualTo:@1]
]];
[self checkOnlineAndOfflineQuery:[[collRef queryWhereFilter:filter5] queryLimitedTo:1]
matchesResult:@[ @"doc2" ]];
}
- (void)testOrQueriesWithIn {
FIRCollectionReference *collRef = [self collectionRefWithDocuments:@{
@"doc1" : @{@"a" : @1, @"b" : @0},
@"doc2" : @{@"b" : @1},
@"doc3" : @{@"a" : @3, @"b" : @2},
@"doc4" : @{@"a" : @1, @"b" : @3},
@"doc5" : @{@"a" : @1},
@"doc6" : @{@"a" : @2}
}];
// a==2 || b in [2,3]
FIRFilter *filter = [FIRFilter orFilterWithFilters:@[
[FIRFilter filterWhereField:@"a" isEqualTo:@2], [FIRFilter filterWhereField:@"b" in:@[ @2, @3 ]]
]];
[self checkOnlineAndOfflineQuery:[collRef queryWhereFilter:filter]
matchesResult:@[ @"doc3", @"doc4", @"doc6" ]];
}
- (void)testOrQueriesWithArrayMembership {
FIRCollectionReference *collRef = [self collectionRefWithDocuments:@{
@"doc1" : @{@"a" : @1, @"b" : @[ @0 ]},
@"doc2" : @{@"b" : @[ @1 ]},
@"doc3" : @{@"a" : @3, @"b" : @[ @2, @7 ]},
@"doc4" : @{@"a" : @1, @"b" : @[ @3, @7 ]},
@"doc5" : @{@"a" : @1},
@"doc6" : @{@"a" : @2}
}];
// a==2 || b array-contains 7
FIRFilter *filter1 = [FIRFilter orFilterWithFilters:@[
[FIRFilter filterWhereField:@"a" isEqualTo:@2], [FIRFilter filterWhereField:@"b"
arrayContains:@7]
]];
[self checkOnlineAndOfflineQuery:[collRef queryWhereFilter:filter1]
matchesResult:@[ @"doc3", @"doc4", @"doc6" ]];
// a==2 || b array-contains-any [0, 3]
FIRFilter *filter2 = [FIRFilter orFilterWithFilters:@[
[FIRFilter filterWhereField:@"a" isEqualTo:@2], [FIRFilter filterWhereField:@"b"
arrayContainsAny:@[ @0, @3 ]]
]];
[self checkOnlineAndOfflineQuery:[collRef queryWhereFilter:filter2]
matchesResult:@[ @"doc1", @"doc4", @"doc6" ]];
}
- (void)testMultipleInOps {
FIRCollectionReference *collRef = [self collectionRefWithDocuments:@{
@"doc1" : @{@"a" : @1, @"b" : @0},
@"doc2" : @{@"b" : @1},
@"doc3" : @{@"a" : @3, @"b" : @2},
@"doc4" : @{@"a" : @1, @"b" : @3},
@"doc5" : @{@"a" : @1},
@"doc6" : @{@"a" : @2}
}];
// Two IN operations on different fields with disjunction.
FIRFilter *filter1 = [FIRFilter orFilterWithFilters:@[
[FIRFilter filterWhereField:@"a" in:@[ @2, @3 ]], [FIRFilter filterWhereField:@"b"
in:@[ @0, @2 ]]
]];
[self checkOnlineAndOfflineQuery:[collRef queryWhereFilter:filter1]
matchesResult:@[ @"doc1", @"doc3", @"doc6" ]];
// Two IN operations on the same field with disjunction.
// a IN [0,3] || a IN [0,2] should union them (similar to: a IN [0,2,3]).
FIRFilter *filter2 = [FIRFilter orFilterWithFilters:@[
[FIRFilter filterWhereField:@"a" in:@[ @0, @3 ]], [FIRFilter filterWhereField:@"a"
in:@[ @0, @2 ]]
]];
[self checkOnlineAndOfflineQuery:[collRef queryWhereFilter:filter2]
matchesResult:@[ @"doc3", @"doc6" ]];
}
- (void)testUsingInWithArrayContainsAny {
FIRCollectionReference *collRef = [self collectionRefWithDocuments:@{
@"doc1" : @{@"a" : @1, @"b" : @[ @0 ]},
@"doc2" : @{@"b" : @[ @1 ]},
@"doc3" : @{@"a" : @3, @"b" : @[ @2, @7 ], @"c" : @10},
@"doc4" : @{@"a" : @1, @"b" : @[ @3, @7 ]},
@"doc5" : @{@"a" : @1},
@"doc6" : @{@"a" : @2, @"c" : @20}
}];
FIRFilter *filter1 = [FIRFilter orFilterWithFilters:@[
[FIRFilter filterWhereField:@"a" in:@[ @2, @3 ]], [FIRFilter filterWhereField:@"b"
arrayContainsAny:@[ @0, @7 ]]
]];
[self checkOnlineAndOfflineQuery:[collRef queryWhereFilter:filter1]
matchesResult:@[ @"doc1", @"doc3", @"doc4", @"doc6" ]];
FIRFilter *filter2 = [FIRFilter orFilterWithFilters:@[
[FIRFilter andFilterWithFilters:@[
[FIRFilter filterWhereField:@"a" in:@[ @2, @3 ]], [FIRFilter filterWhereField:@"c"
isEqualTo:@10]
]],
[FIRFilter filterWhereField:@"b" arrayContainsAny:@[ @0, @7 ]]
]];
[self checkOnlineAndOfflineQuery:[collRef queryWhereFilter:filter2]
matchesResult:@[ @"doc1", @"doc3", @"doc4" ]];
}
- (void)testUseInWithArrayContains {
FIRCollectionReference *collRef = [self collectionRefWithDocuments:@{
@"doc1" : @{@"a" : @1, @"b" : @[ @0 ]},
@"doc2" : @{@"b" : @[ @1 ]},
@"doc3" : @{@"a" : @3, @"b" : @[ @2, @7 ]},
@"doc4" : @{@"a" : @1, @"b" : @[ @3, @7 ]},
@"doc5" : @{@"a" : @1},
@"doc6" : @{@"a" : @2}
}];
FIRFilter *filter1 = [FIRFilter orFilterWithFilters:@[
[FIRFilter filterWhereField:@"a" in:@[ @2, @3 ]], [FIRFilter filterWhereField:@"b"
arrayContainsAny:@[ @3 ]]
]];
[self checkOnlineAndOfflineQuery:[collRef queryWhereFilter:filter1]
matchesResult:@[ @"doc3", @"doc4", @"doc6" ]];
FIRFilter *filter2 = [FIRFilter andFilterWithFilters:@[
[FIRFilter filterWhereField:@"a" in:@[ @2, @3 ]], [FIRFilter filterWhereField:@"b"
arrayContains:@7]
]];
[self checkOnlineAndOfflineQuery:[collRef queryWhereFilter:filter2] matchesResult:@[ @"doc3" ]];
FIRFilter *filter3 = [FIRFilter orFilterWithFilters:@[
[FIRFilter filterWhereField:@"a" in:@[ @2, @3 ]], [FIRFilter andFilterWithFilters:@[
[FIRFilter filterWhereField:@"b" arrayContains:@3], [FIRFilter filterWhereField:@"a"
isEqualTo:@1]
]]
]];
[self checkOnlineAndOfflineQuery:[collRef queryWhereFilter:filter3]
matchesResult:@[ @"doc3", @"doc4", @"doc6" ]];
FIRFilter *filter4 = [FIRFilter andFilterWithFilters:@[
[FIRFilter filterWhereField:@"a" in:@[ @2, @3 ]], [FIRFilter orFilterWithFilters:@[
[FIRFilter filterWhereField:@"b" arrayContains:@7], [FIRFilter filterWhereField:@"a"
isEqualTo:@1]
]]
]];
[self checkOnlineAndOfflineQuery:[collRef queryWhereFilter:filter4] matchesResult:@[ @"doc3" ]];
}
- (void)testOrderByEquality {
// TODO(orquery): Enable this test against production when possible.
XCTSkipIf(![FSTIntegrationTestCase isRunningAgainstEmulator],
"Skip this test if running against production because order-by-equality is not "
"supported yet.");
FIRCollectionReference *collRef = [self collectionRefWithDocuments:@{
@"doc1" : @{@"a" : @1, @"b" : @[ @0 ]},
@"doc2" : @{@"b" : @[ @1 ]},
@"doc3" : @{@"a" : @3, @"b" : @[ @2, @7 ], @"c" : @10},
@"doc4" : @{@"a" : @1, @"b" : @[ @3, @7 ]},
@"doc5" : @{@"a" : @1},
@"doc6" : @{@"a" : @2, @"c" : @20}
}];
[self checkOnlineAndOfflineQuery:[[collRef queryWhereFilter:[FIRFilter filterWhereField:@"a"
isEqualTo:@1]]
queryOrderedByField:@"a"]
matchesResult:@[ @"doc1", @"doc4", @"doc5" ]];
[self checkOnlineAndOfflineQuery:[[collRef
queryWhereFilter:[FIRFilter filterWhereField:@"a"
in:@[ @2, @3 ]]]
queryOrderedByField:@"a"]
matchesResult:@[ @"doc6", @"doc3" ]];
}
- (void)testResumingAQueryShouldUseBloomFilterToAvoidFullRequery {
// TODO(b/291365820): Stop skipping this test when running against the Firestore emulator once
// the emulator is improved to include a bloom filter in the existence filter messages that it
// sends.
XCTSkipIf([FSTIntegrationTestCase isRunningAgainstEmulator],
"Skip this test when running against the Firestore emulator because the emulator does "
"not include a bloom filter when it sends existence filter messages, making it "
"impossible for this test to verify the correctness of the bloom filter.");
// Set this test to stop when the first failure occurs because some test assertion failures make
// the rest of the test not applicable or will even crash.
[self setContinueAfterFailure:NO];
// Prepare the names and contents of the 100 documents to create.
NSMutableDictionary<NSString *, NSDictionary<NSString *, id> *> *testDocs =
[[NSMutableDictionary alloc] init];
for (int i = 0; i < 100; i++) {
[testDocs setValue:@{@"key" : @42} forKey:[NSString stringWithFormat:@"doc%@", @(1000 + i)]];
}
// Each iteration of the "while" loop below runs a single iteration of the test. The test will
// be run multiple times only if a bloom filter false positive occurs.
int attemptNumber = 0;
while (true) {
attemptNumber++;
// Create 100 documents in a new collection.
FIRCollectionReference *collRef = [self collectionRefWithDocuments:testDocs];
// Run a query to populate the local cache with the 100 documents and a resume token.
FIRQuerySnapshot *querySnapshot1 = [self readDocumentSetForRef:collRef
source:FIRFirestoreSourceDefault];
XCTAssertEqual(querySnapshot1.count, 100, @"querySnapshot1.count has an unexpected value");
NSArray<FIRDocumentReference *> *createdDocuments =
FIRDocumentReferenceArrayFromQuerySnapshot(querySnapshot1);
// Delete 50 of the 100 documents. Use a different Firestore instance to avoid affecting the
// local cache.
NSSet<NSString *> *deletedDocumentIds;
{
FIRFirestore *db2 = [self firestore];
FIRWriteBatch *batch = [db2 batch];
NSMutableArray<NSString *> *deletedDocumentIdsAccumulator = [[NSMutableArray alloc] init];
for (decltype(createdDocuments.count) i = 0; i < createdDocuments.count; i += 2) {
FIRDocumentReference *documentToDelete = [db2 documentWithPath:createdDocuments[i].path];
[batch deleteDocument:documentToDelete];
[deletedDocumentIdsAccumulator addObject:documentToDelete.documentID];
}
[self commitWriteBatch:batch];
deletedDocumentIds = [NSSet setWithArray:deletedDocumentIdsAccumulator];
}
XCTAssertEqual(deletedDocumentIds.count, 50u, @"deletedDocumentIds has the wrong size");
// Wait for 10 seconds, during which Watch will stop tracking the query and will send an
// existence filter rather than "delete" events when the query is resumed.
[NSThread sleepForTimeInterval:10.0f];
// Resume the query and save the resulting snapshot for verification.
// Use some internal testing hooks to "capture" the existence filter mismatches to verify that
// Watch sent a bloom filter, and it was used to avert a full requery.
__block FIRQuerySnapshot *querySnapshot2;
NSArray<FSTTestingHooksExistenceFilterMismatchInfo *> *existenceFilterMismatches =
[FSTTestingHooks captureExistenceFilterMismatchesDuringBlock:^{
querySnapshot2 = [self readDocumentSetForRef:collRef source:FIRFirestoreSourceDefault];
}];
// Verify that the snapshot from the resumed query contains the expected documents; that is,
// that it contains the 50 documents that were _not_ deleted.
{
NSMutableArray<NSString *> *expectedDocumentIds = [[NSMutableArray alloc] init];
for (FIRDocumentReference *documentRef in createdDocuments) {
if (![deletedDocumentIds containsObject:documentRef.documentID]) {
[expectedDocumentIds addObject:documentRef.documentID];
}
}
XCTAssertEqualObjects([NSSet setWithArray:FIRQuerySnapshotGetIDs(querySnapshot2)],
[NSSet setWithArray:expectedDocumentIds],
@"querySnapshot2 has the wrong documents");
}
// Verify that Watch sent an existence filter with the correct counts when the query was
// resumed.
XCTAssertEqual(existenceFilterMismatches.count, 1u,
@"Watch should have sent exactly 1 existence filter");
FSTTestingHooksExistenceFilterMismatchInfo *existenceFilterMismatchInfo =
existenceFilterMismatches[0];
XCTAssertEqual(existenceFilterMismatchInfo.localCacheCount, 100);
XCTAssertEqual(existenceFilterMismatchInfo.existenceFilterCount, 50);
// Verify that Watch sent a valid bloom filter.
FSTTestingHooksBloomFilter *bloomFilter = existenceFilterMismatchInfo.bloomFilter;
XCTAssertNotNil(bloomFilter,
"Watch should have included a bloom filter in the existence filter");
XCTAssertGreaterThan(bloomFilter.hashCount, 0);
XCTAssertGreaterThan(bloomFilter.bitmapLength, 0);
XCTAssertGreaterThan(bloomFilter.padding, 0);
XCTAssertLessThan(bloomFilter.padding, 8);
// Verify that the bloom filter was successfully used to avert a full requery. If a false
// positive occurred then retry the entire test. Although statistically rare, false positives
// are expected to happen occasionally. When a false positive _does_ happen, just retry the test
// with a different set of documents. If that retry _also_ experiences a false positive, then
// fail the test because that is so improbable that something must have gone wrong.
if (attemptNumber == 1 && !bloomFilter.applied) {
continue;
}
XCTAssertTrue(bloomFilter.applied,
@"The bloom filter should have been successfully applied with attemptNumber=%@",
@(attemptNumber));
// Break out of the test loop now that the test passes.
break;
}
}
- (void)
testBloomFilterShouldAvertAFullRequeryWhenDocumentsWereAddedDeletedRemovedUpdatedAndUnchangedSinceTheResumeToken {
// TODO(b/291365820): Stop skipping this test when running against the Firestore emulator once
// the emulator is improved to include a bloom filter in the existence filter messages that it
// sends.
XCTSkipIf([FSTIntegrationTestCase isRunningAgainstEmulator],
"Skip this test when running against the Firestore emulator because the emulator does "
"not include a bloom filter when it sends existence filter messages, making it "
"impossible for this test to verify the correctness of the bloom filter.");
// Set this test to stop when the first failure occurs because some test assertion failures make
// the rest of the test not applicable or will even crash.
[self setContinueAfterFailure:NO];
// Prepare the names and contents of the 20 documents to create.
NSMutableDictionary<NSString *, NSDictionary<NSString *, id> *> *testDocs =
[[NSMutableDictionary alloc] init];
for (int i = 0; i < 20; i++) {
[testDocs setValue:@{@"key" : @42, @"removed" : @NO}
forKey:[NSString stringWithFormat:@"doc%@", @(1000 + i)]];
}
// Each iteration of the "while" loop below runs a single iteration of the test. The test will
// be run multiple times only if a bloom filter false positive occurs.
int attemptNumber = 0;
while (true) {
attemptNumber++;
// Create 20 documents in a new collection.
FIRCollectionReference *collRef = [self collectionRefWithDocuments:testDocs];
FIRQuery *query = [collRef queryWhereField:@"removed" isEqualTo:@NO];
// Run a query to populate the local cache with the 20 documents and a resume token.
FIRQuerySnapshot *querySnapshot1 = [self readDocumentSetForRef:query
source:FIRFirestoreSourceDefault];
XCTAssertEqual(querySnapshot1.count, 20u, @"querySnapshot1.count has an unexpected value");
NSArray<FIRDocumentReference *> *createdDocuments =
FIRDocumentReferenceArrayFromQuerySnapshot(querySnapshot1);
// Out of the 20 existing documents, leave 5 docs untouched, delete 5 docs, remove 5 docs,
// update 5 docs, and add 15 new docs.
NSSet<NSString *> *deletedDocumentIds;
NSSet<NSString *> *removedDocumentIds;
NSSet<NSString *> *updatedDocumentIds;
NSMutableArray<NSString *> *addedDocumentIds = [[NSMutableArray alloc] init];
{
FIRFirestore *db2 = [self firestore];
FIRWriteBatch *batch = [db2 batch];
NSMutableArray<NSString *> *deletedDocumentIdsAccumulator = [[NSMutableArray alloc] init];
for (decltype(createdDocuments.count) i = 0; i < createdDocuments.count; i += 4) {
FIRDocumentReference *documentToDelete = [db2 documentWithPath:createdDocuments[i].path];
[batch deleteDocument:documentToDelete];
[deletedDocumentIdsAccumulator addObject:documentToDelete.documentID];
}
deletedDocumentIds = [NSSet setWithArray:deletedDocumentIdsAccumulator];
XCTAssertEqual(deletedDocumentIds.count, 5u, @"deletedDocumentIds has the wrong size");
// Update 5 documents to no longer match the query.
NSMutableArray<NSString *> *removedDocumentIdsAccumulator = [[NSMutableArray alloc] init];
for (decltype(createdDocuments.count) i = 1; i < createdDocuments.count; i += 4) {
FIRDocumentReference *documentToRemove = [db2 documentWithPath:createdDocuments[i].path];
[batch updateData:@{@"removed" : @YES} forDocument:documentToRemove];
[removedDocumentIdsAccumulator addObject:documentToRemove.documentID];
}
removedDocumentIds = [NSSet setWithArray:removedDocumentIdsAccumulator];
XCTAssertEqual(removedDocumentIds.count, 5u, @"removedDocumentIds has the wrong size");
// Update 5 documents, but ensure they still match the query.
NSMutableArray<NSString *> *updatedDocumentIdsAccumulator = [[NSMutableArray alloc] init];
for (decltype(createdDocuments.count) i = 2; i < createdDocuments.count; i += 4) {
FIRDocumentReference *documentToUpdate = [db2 documentWithPath:createdDocuments[i].path];
[batch updateData:@{@"key" : @43} forDocument:documentToUpdate];
[updatedDocumentIdsAccumulator addObject:documentToUpdate.documentID];
}
updatedDocumentIds = [NSSet setWithArray:updatedDocumentIdsAccumulator];
XCTAssertEqual(updatedDocumentIds.count, 5u, @"updatedDocumentIds has the wrong size");
for (int i = 0; i < 15; i += 1) {
FIRDocumentReference *documentToAdd = [db2
documentWithPath:[NSString stringWithFormat:@"%@/newDoc%@", collRef.path, @(1000 + i)]];
[batch setData:@{@"key" : @42, @"removed" : @NO} forDocument:documentToAdd];
[addedDocumentIds addObject:documentToAdd.documentID];
}
// Ensure the documentIds above are mutually exclusive.
NSMutableSet<NSString *> *mergedSet = [NSMutableSet setWithArray:addedDocumentIds];
[mergedSet unionSet:deletedDocumentIds];
[mergedSet unionSet:removedDocumentIds];
[mergedSet unionSet:updatedDocumentIds];
XCTAssertEqual(mergedSet.count, 30u, @"There are documents experienced multiple operations.");
[self commitWriteBatch:batch];
}
// Wait for 10 seconds, during which Watch will stop tracking the query and will send an
// existence filter rather than "delete" events when the query is resumed.
[NSThread sleepForTimeInterval:10.0f];
// Resume the query and save the resulting snapshot for verification. Use some internal testing
// hooks to "capture" the existence filter mismatches to verify that Watch sent a bloom
// filter, and it was used to avert a full requery.
__block FIRQuerySnapshot *querySnapshot2;
NSArray<FSTTestingHooksExistenceFilterMismatchInfo *> *existenceFilterMismatches =
[FSTTestingHooks captureExistenceFilterMismatchesDuringBlock:^{
querySnapshot2 = [self readDocumentSetForRef:query source:FIRFirestoreSourceDefault];
}];
XCTAssertEqual(querySnapshot2.count, 25u, @"querySnapshot1.count has an unexpected value");
// Verify that the snapshot from the resumed query contains the expected documents; that is, 10
// existing documents that still match the query, and 15 documents that are newly added.
{
NSMutableArray<NSString *> *expectedDocumentIds = [[NSMutableArray alloc] init];
for (FIRDocumentReference *documentRef in createdDocuments) {
if (![deletedDocumentIds containsObject:documentRef.documentID] &&
![removedDocumentIds containsObject:documentRef.documentID]) {
[expectedDocumentIds addObject:documentRef.documentID];
}
}
[expectedDocumentIds addObjectsFromArray:addedDocumentIds];
XCTAssertEqualObjects([NSSet setWithArray:FIRQuerySnapshotGetIDs(querySnapshot2)],
[NSSet setWithArray:expectedDocumentIds],
@"querySnapshot2 has the wrong documents");
}
// Verify that Watch sent an existence filter with the correct counts when the query was
// resumed.
XCTAssertEqual(existenceFilterMismatches.count, 1u,
@"Watch should have sent exactly 1 existence filter");
FSTTestingHooksExistenceFilterMismatchInfo *existenceFilterMismatchInfo =
existenceFilterMismatches[0];
XCTAssertEqual(existenceFilterMismatchInfo.localCacheCount, 35);
XCTAssertEqual(existenceFilterMismatchInfo.existenceFilterCount, 25);
// Verify that Watch sent a valid bloom filter.
FSTTestingHooksBloomFilter *bloomFilter = existenceFilterMismatchInfo.bloomFilter;
XCTAssertNotNil(bloomFilter,
"Watch should have included a bloom filter in the existence filter");
// Verify that the bloom filter was successfully used to avert a full requery. If a false
// positive occurred then retry the entire test. Although statistically rare, false positives
// are expected to happen occasionally. When a false positive _does_ happen, just retry the test
// with a different set of documents. If that retry _also_ experiences a false positive, then
// fail the test because that is so improbable that something must have gone wrong.
if (attemptNumber == 1 && !bloomFilter.applied) {
continue;
}
XCTAssertTrue(bloomFilter.applied,
@"The bloom filter should have been successfully applied with attemptNumber=%@",
@(attemptNumber));
// Break out of the test loop now that the test passes.
break;
}
}
- (void)testBloomFilterShouldCorrectlyEncodeComplexUnicodeCharacters {
// TODO(b/291365820): Stop skipping this test when running against the Firestore emulator once
// the emulator is improved to include a bloom filter in the existence filter messages that it
// sends.
XCTSkipIf([FSTIntegrationTestCase isRunningAgainstEmulator],
"Skip this test when running against the Firestore emulator because the emulator does "
"not include a bloom filter when it sends existence filter messages, making it "
"impossible for this test to verify the correctness of the bloom filter.");
// Set this test to stop when the first failure occurs because some test assertion failures make
// the rest of the test not applicable or will even crash.
[self setContinueAfterFailure:NO];
// Define a comparator that compares `NSString` objects in a way that orders canonically-
// equivalent, but distinct, strings in a consistent manner by using `NSForcedOrderingSearch`.
// Otherwise, the bare `[NSString compare:]` method considers canonically-equivalent, but
// distinct, strings as "equal" and orders them indeterminately.
NSComparator sortComparator = ^(NSString *string1, NSString *string2) {
return [string1 compare:string2 options:NSForcedOrderingSearch];
};
// Firestore does not do any Unicode normalization on the document IDs. Therefore, two document
// IDs that are canonically-equivalent (i.e. they visually appear identical) but are represented
// by a different sequence of Unicode code points are treated as distinct document IDs.
NSArray<NSString *> *testDocIds;
{
NSMutableArray<NSString *> *testDocIdsAccumulator = [[NSMutableArray alloc] init];
[testDocIdsAccumulator addObject:@"DocumentToDelete"];
// The next two strings both end with "e" with an accent: the first uses the dedicated Unicode
// code point for this character, while the second uses the standard lowercase "e" followed by
// the accent combining character.
[testDocIdsAccumulator addObject:@"LowercaseEWithAcuteAccent_\u00E9"];
[testDocIdsAccumulator addObject:@"LowercaseEWithAcuteAccent_\u0065\u0301"];
// The next two strings both end with an "e" with two different accents applied via the
// following two combining characters. The combining characters are specified in a different
// order and Firestore treats these document IDs as unique, despite the order of the combining
// characters being irrelevant.
[testDocIdsAccumulator addObject:@"LowercaseEWithMultipleAccents_\u0065\u0301\u0327"];
[testDocIdsAccumulator addObject:@"LowercaseEWithMultipleAccents_\u0065\u0327\u0301"];
// The next string contains a character outside the BMP (the "basic multilingual plane"); that
// is, its code point is greater than 0xFFFF. Since NSString stores text in sequences of 16-bit
// code units, using the UTF-16 encoding (according to
// https://www.objc.io/issues/9-strings/unicode) it is stored as a surrogate pair, two 16-bit
// code units U+D83D and U+DE00, to represent this character. Make sure that its presence is
// correctly tested in the bloom filter, which uses UTF-8 encoding.
[testDocIdsAccumulator addObject:@"Smiley_\U0001F600"];
testDocIds = [NSArray arrayWithArray:testDocIdsAccumulator];
}
// Verify assumptions about the equivalence of strings in `testDocIds`.
XCTAssertEqualObjects(testDocIds[1].decomposedStringWithCanonicalMapping,
testDocIds[2].decomposedStringWithCanonicalMapping);
XCTAssertEqualObjects(testDocIds[3].decomposedStringWithCanonicalMapping,
testDocIds[4].decomposedStringWithCanonicalMapping);
XCTAssertEqual([testDocIds[5] characterAtIndex:7], 0xD83D);
XCTAssertEqual([testDocIds[5] characterAtIndex:8], 0xDE00);
// Create the mapping from document ID to document data for the document IDs specified in
// `testDocIds`.
NSMutableDictionary<NSString *, NSDictionary<NSString *, id> *> *testDocs =
[[NSMutableDictionary alloc] init];
for (NSString *testDocId in testDocIds) {
[testDocs setValue:@{@"foo" : @42} forKey:testDocId];
}
// Create the documents whose names contain complex Unicode characters in a new collection.
FIRCollectionReference *collRef = [self collectionRefWithDocuments:testDocs];
// Run a query to populate the local cache with documents that have names with complex Unicode
// characters.
{
FIRQuerySnapshot *querySnapshot1 = [self readDocumentSetForRef:collRef
source:FIRFirestoreSourceDefault];
XCTAssertEqualObjects(
[FIRQuerySnapshotGetIDs(querySnapshot1) sortedArrayUsingComparator:sortComparator],
[testDocIds sortedArrayUsingComparator:sortComparator],
@"querySnapshot1 has the wrong documents");
}
// Delete one of the documents so that the next call to collection.get() will experience an
// existence filter mismatch. Use a different Firestore instance to avoid affecting the local
// cache.
FIRDocumentReference *documentToDelete = [collRef documentWithPath:@"DocumentToDelete"];
{
FIRFirestore *db2 = [self firestore];
[self deleteDocumentRef:[db2 documentWithPath:documentToDelete.path]];
}
// Wait for 10 seconds, during which Watch will stop tracking the query and will send an
// existence filter rather than "delete" events when the query is resumed.
[NSThread sleepForTimeInterval:10.0f];
// Resume the query and save the resulting snapshot for verification. Use some internal testing
// hooks to "capture" the existence filter mismatches.
__block FIRQuerySnapshot *querySnapshot2;
NSArray<FSTTestingHooksExistenceFilterMismatchInfo *> *existenceFilterMismatches =
[FSTTestingHooks captureExistenceFilterMismatchesDuringBlock:^{
querySnapshot2 = [self readDocumentSetForRef:collRef source:FIRFirestoreSourceDefault];
}];
// Verify that the snapshot from the resumed query contains the expected documents; that is, that
// it contains the documents whose names contain complex Unicode characters and _not_ the document
// that was deleted.
{
NSMutableArray<NSString *> *querySnapshot2ExpectedDocumentIds =
[NSMutableArray arrayWithArray:testDocIds];
[querySnapshot2ExpectedDocumentIds removeObject:documentToDelete.documentID];
XCTAssertEqualObjects(
[FIRQuerySnapshotGetIDs(querySnapshot2) sortedArrayUsingComparator:sortComparator],
[querySnapshot2ExpectedDocumentIds sortedArrayUsingComparator:sortComparator],
@"querySnapshot2 has the wrong documents");
}
// Verify that Watch sent an existence filter with the correct counts.
XCTAssertEqual(existenceFilterMismatches.count, 1u,
@"Watch should have sent exactly 1 existence filter");
FSTTestingHooksExistenceFilterMismatchInfo *existenceFilterMismatchInfo =
existenceFilterMismatches[0];
XCTAssertEqual(existenceFilterMismatchInfo.localCacheCount, (int)testDocIds.count);
XCTAssertEqual(existenceFilterMismatchInfo.existenceFilterCount, (int)testDocIds.count - 1);
// Verify that Watch sent a valid bloom filter.
FSTTestingHooksBloomFilter *bloomFilter = existenceFilterMismatchInfo.bloomFilter;
XCTAssertNotNil(bloomFilter, "Watch should have included a bloom filter in the existence filter");
// The bloom filter application should statistically be successful almost every time; the _only_
// time when it would _not_ be successful is if there is a false positive when testing for
// 'DocumentToDelete' in the bloom filter. So verify that the bloom filter application is
// successful, unless there was a false positive.
BOOL isFalsePositive = [bloomFilter mightContain:documentToDelete];
XCTAssertEqual(bloomFilter.applied, !isFalsePositive);
// Verify that the bloom filter contains the document paths with complex Unicode characters.
for (FIRDocumentSnapshot *documentSnapshot in querySnapshot2.documents) {
XCTAssertTrue([bloomFilter mightContain:documentSnapshot.reference],
@"The bloom filter should contain %@", documentSnapshot.documentID);
}
}
@end