mirror of
https://github.com/firebase/firebase-ios-sdk
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485 lines
18 KiB
Objective-C
485 lines
18 KiB
Objective-C
/*
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* Copyright 2017 Google
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#import <XCTest/XCTest.h>
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#import "FArraySortedDictionary.h"
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#import "FTreeSortedDictionary.h"
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@interface FArraySortedDictionaryTests : XCTestCase
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@end
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@implementation FArraySortedDictionaryTests
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- (NSComparator)defaultComparator {
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return ^(id obj1, id obj2) {
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if ([obj1 respondsToSelector:@selector(compare:)] &&
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[obj2 respondsToSelector:@selector(compare:)]) {
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return [obj1 compare:obj2];
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} else {
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if (obj1 < obj2) {
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return (NSComparisonResult)NSOrderedAscending;
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} else if (obj1 > obj2) {
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return (NSComparisonResult)NSOrderedDescending;
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} else {
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return (NSComparisonResult)NSOrderedSame;
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}
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}
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};
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}
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- (void)testCreateNode {
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FImmutableSortedDictionary *map = [[[FArraySortedDictionary alloc]
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initWithComparator:[self defaultComparator]] insertKey:@"key" withValue:@"value"];
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XCTAssertEqual(map.count, 1, @"Contains one element");
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}
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- (void)testGetNilReturnsNil {
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FImmutableSortedDictionary *map1 = [[[FArraySortedDictionary alloc]
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initWithComparator:[self defaultComparator]] insertKey:@"key" withValue:@"value"];
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XCTAssertNil([map1 get:nil]);
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FImmutableSortedDictionary *map2 =
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[[[FArraySortedDictionary alloc] initWithComparator:^NSComparisonResult(id obj1, id obj2) {
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return [obj1 compare:obj2];
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}] insertKey:@"key" withValue:@"value"];
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XCTAssertNil([map2 get:nil]);
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}
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- (void)testSearchForSpecificKey {
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FImmutableSortedDictionary *map = [[[[FArraySortedDictionary alloc]
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initWithComparator:[self defaultComparator]] insertKey:@1 withValue:@1] insertKey:@2
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withValue:@2];
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XCTAssertEqualObjects([map get:@1], @1, @"Found first object");
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XCTAssertEqualObjects([map get:@2], @2, @"Found second object");
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XCTAssertNil([map get:@3], @"Properly not found object");
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}
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- (void)testRemoveKeyValuePair {
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FImmutableSortedDictionary *map = [[[[FArraySortedDictionary alloc]
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initWithComparator:[self defaultComparator]] insertKey:@1 withValue:@1] insertKey:@2
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withValue:@2];
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FImmutableSortedDictionary *newMap = [map removeKey:@1];
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XCTAssertEqualObjects([newMap get:@2], @2, @"Found second object");
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XCTAssertNil([newMap get:@1], @"Properly not found object");
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// Make sure the original one is not mutated
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XCTAssertEqualObjects([map get:@1], @1, @"Found first object");
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XCTAssertEqualObjects([map get:@2], @2, @"Found second object");
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}
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- (void)testMoreRemovals {
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FImmutableSortedDictionary *map =
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[[[[[[[[[[[[[[FArraySortedDictionary alloc] initWithComparator:[self defaultComparator]]
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insertKey:@1
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withValue:@1] insertKey:@50 withValue:@50] insertKey:@3 withValue:@3] insertKey:@4
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withValue:@4]
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insertKey:@7
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withValue:@7] insertKey:@9 withValue:@9] insertKey:@20 withValue:@20] insertKey:@18
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withValue:@18]
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insertKey:@2
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withValue:@2] insertKey:@71 withValue:@71] insertKey:@42 withValue:@42] insertKey:@88
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withValue:@88];
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XCTAssertNotNil([map get:@7], @"Found object");
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XCTAssertNotNil([map get:@3], @"Found object");
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XCTAssertNotNil([map get:@1], @"Found object");
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FImmutableSortedDictionary *m1 = [map removeKey:@7];
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FImmutableSortedDictionary *m2 = [map removeKey:@3];
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FImmutableSortedDictionary *m3 = [map removeKey:@1];
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XCTAssertNil([m1 get:@7], @"Removed object");
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XCTAssertNotNil([m1 get:@3], @"Found object");
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XCTAssertNotNil([m1 get:@1], @"Found object");
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XCTAssertNil([m2 get:@3], @"Removed object");
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XCTAssertNotNil([m2 get:@7], @"Found object");
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XCTAssertNotNil([m2 get:@1], @"Found object");
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XCTAssertNil([m3 get:@1], @"Removed object");
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XCTAssertNotNil([m3 get:@7], @"Found object");
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XCTAssertNotNil([m3 get:@3], @"Found object");
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}
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- (void)testRemovalBug {
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FImmutableSortedDictionary *map =
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[[[[[FArraySortedDictionary alloc] initWithComparator:[self defaultComparator]]
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insertKey:@1
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withValue:@1] insertKey:@2 withValue:@2] insertKey:@3 withValue:@3];
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XCTAssertEqualObjects([map get:@1], @1, @"Found object");
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XCTAssertEqualObjects([map get:@2], @2, @"Found object");
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XCTAssertEqualObjects([map get:@3], @3, @"Found object");
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FImmutableSortedDictionary *m1 = [map removeKey:@2];
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XCTAssertEqualObjects([m1 get:@1], @1, @"Found object");
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XCTAssertEqualObjects([m1 get:@3], @3, @"Found object");
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XCTAssertNil([m1 get:@2], @"Removed object");
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}
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- (void)testIncreasing {
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int total = 20;
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FImmutableSortedDictionary *map =
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[[FArraySortedDictionary alloc] initWithComparator:[self defaultComparator]];
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for (int i = 0; i < total; i++) {
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NSNumber *item = [NSNumber numberWithInt:i];
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map = [map insertKey:item withValue:item];
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}
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XCTAssertTrue([map count] == 20, @"Check if all 100 objects are in the map");
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for (int i = 0; i < total; i++) {
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NSNumber *item = [NSNumber numberWithInt:i];
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map = [map removeKey:item];
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}
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XCTAssertTrue([map count] == 0, @"Check if all 100 objects were removed");
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}
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- (void)testOverride {
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FImmutableSortedDictionary *map = [[[[FArraySortedDictionary alloc]
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initWithComparator:[self defaultComparator]] insertKey:@10 withValue:@10] insertKey:@10
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withValue:@8];
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XCTAssertEqualObjects([map get:@10], @8, @"Found first object");
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}
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- (void)testEmpty {
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FImmutableSortedDictionary *map = [[[[FArraySortedDictionary alloc]
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initWithComparator:[self defaultComparator]] insertKey:@10 withValue:@10] removeKey:@10];
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XCTAssertTrue([map isEmpty], @"Properly empty");
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}
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- (void)testEmptyGet {
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FImmutableSortedDictionary *map =
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[[FArraySortedDictionary alloc] initWithComparator:[self defaultComparator]];
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XCTAssertNil([map get:@"something"], @"Properly nil");
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}
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- (void)testEmptyCount {
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FImmutableSortedDictionary *map =
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[[FArraySortedDictionary alloc] initWithComparator:[self defaultComparator]];
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XCTAssertTrue([map count] == 0, @"Properly zero count");
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}
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- (void)testEmptyRemoval {
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FImmutableSortedDictionary *map =
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[[FArraySortedDictionary alloc] initWithComparator:[self defaultComparator]];
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XCTAssertTrue([[map removeKey:@"sometjhing"] count] == 0, @"Properly zero count");
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}
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- (void)testReverseTraversal {
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FImmutableSortedDictionary *map =
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[[[[[[[FArraySortedDictionary alloc] initWithComparator:[self defaultComparator]]
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insertKey:@1
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withValue:@1] insertKey:@5 withValue:@5] insertKey:@3
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withValue:@3] insertKey:@2
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withValue:@2] insertKey:@4
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withValue:@4];
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__block int next = 5;
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[map enumerateKeysAndObjectsReverse:YES
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usingBlock:^(id key, id value, BOOL *stop) {
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XCTAssertEqualObjects(key, [NSNumber numberWithInt:next],
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@"Properly equal");
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next = next - 1;
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}];
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}
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- (void)testInsertionAndRemovalOfAHundredItems {
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int N = 20;
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NSMutableArray *toInsert = [[NSMutableArray alloc] initWithCapacity:N];
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NSMutableArray *toRemove = [[NSMutableArray alloc] initWithCapacity:N];
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for (int i = 0; i < N; i++) {
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[toInsert addObject:[NSNumber numberWithInt:i]];
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[toRemove addObject:[NSNumber numberWithInt:i]];
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}
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[self shuffleArray:toInsert];
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[self shuffleArray:toRemove];
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FImmutableSortedDictionary *map =
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[[FArraySortedDictionary alloc] initWithComparator:[self defaultComparator]];
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// add them to the dictionary
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for (int i = 0; i < N; i++) {
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map = [map insertKey:[toInsert objectAtIndex:i] withValue:[toInsert objectAtIndex:i]];
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}
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XCTAssertTrue([map count] == N, @"Check if all N objects are in the map");
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// check the order is correct
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__block int next = 0;
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[map enumerateKeysAndObjectsUsingBlock:^(id key, id value, BOOL *stop) {
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XCTAssertEqualObjects(key, [NSNumber numberWithInt:next], @"Correct key");
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XCTAssertEqualObjects(value, [NSNumber numberWithInt:next], @"Correct value");
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next = next + 1;
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}];
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XCTAssertEqual(next, N, @"Check we traversed all of the items");
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// remove them
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for (int i = 0; i < N; i++) {
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map = [map removeKey:[toRemove objectAtIndex:i]];
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}
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XCTAssertEqual([map count], 0, @"Check we removed all of the items");
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}
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- (void)shuffleArray:(NSMutableArray *)array {
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NSUInteger count = [array count];
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for (NSUInteger i = 0; i < count; i++) {
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NSInteger nElements = count - i;
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NSInteger n = (arc4random() % nElements) + i;
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[array exchangeObjectAtIndex:i withObjectAtIndex:n];
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}
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}
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- (void)testOrderIsCorrect {
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NSArray *toInsert = [[NSArray alloc] initWithObjects:@1, @7, @8, @5, @2, @6, @4, @0, @3, nil];
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FImmutableSortedDictionary *map =
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[[FArraySortedDictionary alloc] initWithComparator:[self defaultComparator]];
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// add them to the dictionary
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for (int i = 0; i < [toInsert count]; i++) {
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map = [map insertKey:[toInsert objectAtIndex:i] withValue:[toInsert objectAtIndex:i]];
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}
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XCTAssertTrue([map count] == [toInsert count], @"Check if all N objects are in the map");
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// check the order is correct
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__block NSUInteger next = 0;
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[map enumerateKeysAndObjectsUsingBlock:^(id key, id value, BOOL *stop) {
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XCTAssertEqualObjects(key, [NSNumber numberWithInteger:next], @"Correct key");
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XCTAssertEqualObjects(value, [NSNumber numberWithInteger:next], @"Correct value");
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next = next + 1;
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}];
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XCTAssertEqual(next, [toInsert count], @"Check we traversed all of the items");
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}
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- (void)testPredecessorKey {
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FImmutableSortedDictionary *map =
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[[[[[[[[FArraySortedDictionary alloc] initWithComparator:[self defaultComparator]]
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insertKey:@1
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withValue:@1] insertKey:@50 withValue:@50] insertKey:@3 withValue:@3]
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insertKey:@4
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withValue:@4] insertKey:@7 withValue:@7] insertKey:@9 withValue:@9];
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XCTAssertNil([map getPredecessorKey:@1], @"First object doesn't have a predecessor");
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XCTAssertEqualObjects([map getPredecessorKey:@3], @1, @"@1");
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XCTAssertEqualObjects([map getPredecessorKey:@4], @3, @"@3");
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XCTAssertEqualObjects([map getPredecessorKey:@7], @4, @"@4");
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XCTAssertEqualObjects([map getPredecessorKey:@9], @7, @"@7");
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XCTAssertEqualObjects([map getPredecessorKey:@50], @9, @"@9");
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XCTAssertThrows([map getPredecessorKey:@777], @"Expect exception about nonexistant key");
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}
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- (void)testEnumerator {
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int N = 20;
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NSMutableArray *toInsert = [[NSMutableArray alloc] initWithCapacity:N];
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for (int i = 0; i < N; i++) {
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[toInsert addObject:[NSNumber numberWithInt:i]];
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}
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[self shuffleArray:toInsert];
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FImmutableSortedDictionary *map =
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[[FArraySortedDictionary alloc] initWithComparator:[self defaultComparator]];
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// add them to the dictionary
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for (int i = 0; i < N; i++) {
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map = [map insertKey:[toInsert objectAtIndex:i] withValue:[toInsert objectAtIndex:i]];
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}
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XCTAssertTrue([map count] == N, @"Check if all N objects are in the map");
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XCTAssertTrue([map isKindOfClass:[FArraySortedDictionary class]],
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@"Make sure we still have a array backed dictionary");
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NSEnumerator *enumerator = [map keyEnumerator];
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id next = [enumerator nextObject];
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int correctValue = 0;
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while (next != nil) {
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XCTAssertEqualObjects(next, [NSNumber numberWithInt:correctValue], @"Correct key");
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next = [enumerator nextObject];
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correctValue = correctValue + 1;
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}
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}
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- (void)testReverseEnumerator {
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int N = 20;
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NSMutableArray *toInsert = [[NSMutableArray alloc] initWithCapacity:N];
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for (int i = 0; i < N; i++) {
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[toInsert addObject:[NSNumber numberWithInt:i]];
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}
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[self shuffleArray:toInsert];
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FImmutableSortedDictionary *map =
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[[FArraySortedDictionary alloc] initWithComparator:[self defaultComparator]];
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// add them to the dictionary
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for (int i = 0; i < N; i++) {
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map = [map insertKey:[toInsert objectAtIndex:i] withValue:[toInsert objectAtIndex:i]];
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}
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XCTAssertTrue([map count] == N, @"Check if all N objects are in the map");
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XCTAssertTrue([map isKindOfClass:[FArraySortedDictionary class]],
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@"Make sure we still have a array backed dictionary");
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NSEnumerator *enumerator = [map reverseKeyEnumerator];
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id next = [enumerator nextObject];
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int correctValue = N - 1;
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while (next != nil) {
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XCTAssertEqualObjects(next, [NSNumber numberWithInt:correctValue], @"Correct key");
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next = [enumerator nextObject];
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correctValue--;
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}
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}
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- (void)testEnumeratorFrom {
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int N = 20;
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NSMutableArray *toInsert = [[NSMutableArray alloc] initWithCapacity:N];
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for (int i = 0; i < N; i++) {
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[toInsert addObject:[NSNumber numberWithInt:i * 2]];
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}
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[self shuffleArray:toInsert];
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FImmutableSortedDictionary *map =
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[[FArraySortedDictionary alloc] initWithComparator:[self defaultComparator]];
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// add them to the dictionary
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for (int i = 0; i < N; i++) {
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map = [map insertKey:[toInsert objectAtIndex:i] withValue:[toInsert objectAtIndex:i]];
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}
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XCTAssertTrue([map count] == N, @"Check if all N objects are in the map");
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XCTAssertTrue([map isKindOfClass:[FArraySortedDictionary class]],
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@"Make sure we still have a array backed dictionary");
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// Test from inbetween keys
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{
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NSEnumerator *enumerator = [map keyEnumeratorFrom:@11];
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id next = [enumerator nextObject];
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int correctValue = 12;
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while (next != nil) {
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XCTAssertEqualObjects(next, [NSNumber numberWithInt:correctValue], @"Correct key");
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next = [enumerator nextObject];
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correctValue = correctValue + 2;
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}
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}
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// Test from key in map
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{
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NSEnumerator *enumerator = [map keyEnumeratorFrom:@10];
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id next = [enumerator nextObject];
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int correctValue = 10;
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while (next != nil) {
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XCTAssertEqualObjects(next, [NSNumber numberWithInt:correctValue], @"Correct key");
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next = [enumerator nextObject];
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correctValue = correctValue + 2;
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}
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}
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}
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- (void)testReverseEnumeratorFrom {
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int N = 20;
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NSMutableArray *toInsert = [[NSMutableArray alloc] initWithCapacity:N];
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for (int i = 0; i < N; i++) {
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[toInsert addObject:[NSNumber numberWithInt:i * 2]];
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}
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[self shuffleArray:toInsert];
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FImmutableSortedDictionary *map =
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[[FArraySortedDictionary alloc] initWithComparator:[self defaultComparator]];
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// add them to the dictionary
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for (int i = 0; i < N; i++) {
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map = [map insertKey:[toInsert objectAtIndex:i] withValue:[toInsert objectAtIndex:i]];
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}
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XCTAssertTrue([map count] == N, @"Check if all N objects are in the map");
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XCTAssertTrue([map isKindOfClass:[FArraySortedDictionary class]],
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@"Make sure we still have a array backed dictionary");
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// Test from inbetween keys
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{
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NSEnumerator *enumerator = [map reverseKeyEnumeratorFrom:@11];
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id next = [enumerator nextObject];
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int correctValue = 10;
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while (next != nil) {
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XCTAssertEqualObjects(next, [NSNumber numberWithInt:correctValue], @"Correct key");
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next = [enumerator nextObject];
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correctValue = correctValue - 2;
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}
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}
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// Test from key in map
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{
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NSEnumerator *enumerator = [map reverseKeyEnumeratorFrom:@10];
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id next = [enumerator nextObject];
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int correctValue = 10;
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while (next != nil) {
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XCTAssertEqualObjects(next, [NSNumber numberWithInt:correctValue], @"Correct key");
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next = [enumerator nextObject];
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correctValue = correctValue - 2;
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}
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}
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}
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- (void)testConversionToTreeMap {
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int N = SORTED_DICTIONARY_ARRAY_TO_RB_TREE_SIZE_THRESHOLD + 5;
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NSMutableArray *toInsert = [[NSMutableArray alloc] initWithCapacity:N];
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for (int i = 0; i < N; i++) {
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[toInsert addObject:[NSNumber numberWithInt:i]];
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}
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[self shuffleArray:toInsert];
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FImmutableSortedDictionary *dict =
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[FImmutableSortedDictionary dictionaryWithComparator:[self defaultComparator]];
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for (int i = 0; i < N; i++) {
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dict = [dict insertKey:toInsert[i] withValue:toInsert[i]];
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if (i < SORTED_DICTIONARY_ARRAY_TO_RB_TREE_SIZE_THRESHOLD) {
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XCTAssertTrue([dict isKindOfClass:[FArraySortedDictionary class]],
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@"We're below the threshold we should be an array backed implementation");
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XCTAssertEqual(dict.count, i + 1, @"Size doesn't match");
|
|
} else {
|
|
XCTAssertTrue([dict isKindOfClass:[FTreeSortedDictionary class]],
|
|
@"We're above the threshold we should be a tree backed implementation");
|
|
XCTAssertEqual(dict.count, i + 1, @"Size doesn't match");
|
|
}
|
|
}
|
|
|
|
// check the order is correct
|
|
__block NSUInteger next = 0;
|
|
[dict enumerateKeysAndObjectsUsingBlock:^(id key, id value, BOOL *stop) {
|
|
XCTAssertEqualObjects(key, [NSNumber numberWithInteger:next], @"Correct key");
|
|
XCTAssertEqualObjects(value, [NSNumber numberWithInteger:next], @"Correct value");
|
|
next = next + 1;
|
|
}];
|
|
}
|
|
|
|
@end
|