mirror of
https://github.com/firebase/firebase-ios-sdk
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81 lines
2.7 KiB
Swift
81 lines
2.7 KiB
Swift
//
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// Copyright 2022 Google LLC
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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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@testable import FirebaseSessions
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import XCTest
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/// This file and extension exist for ease of testing. Without this, you cannot use
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/// XCTAssertEqual on errors, which means you need to do switches whenever you
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/// want to assert on errors, which is clunky.
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///
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/// This class exists for unit testing purposes only. The SDK should use switch internally
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/// when handling errors, because equating errors is prone to issues (eg. we're just comparing
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/// the types, but not the values).
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extension FirebaseSessionsError: Equatable {
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public static func == (lhs: FirebaseSessions.FirebaseSessionsError,
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rhs: FirebaseSessions.FirebaseSessionsError) -> Bool {
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return String(reflecting: lhs) == String(reflecting: rhs)
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}
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}
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enum FakeError: Error {
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case Fake
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}
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final class ErrorEquatableTests: XCTestCase {
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func test_equalErrorTypes_areEqual() throws {
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let fakeError = FakeError.Fake
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let errs: [FirebaseSessionsError] = [
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.DataCollectionError,
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.SessionSamplingError,
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.SessionInstallationsError(fakeError),
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.DisabledViaSettingsError,
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.DataTransportError(fakeError),
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]
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let errs2: [FirebaseSessionsError] = [
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.DataCollectionError,
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.SessionSamplingError,
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.SessionInstallationsError(fakeError),
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.DisabledViaSettingsError,
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.DataTransportError(fakeError),
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]
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for (i, err) in errs.enumerated() {
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XCTAssertEqual(err, errs2[i])
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}
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}
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func test_unequalErrorTypes_areNotEqual() throws {
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let fakeError = FakeError.Fake
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let errs: [FirebaseSessionsError] = [
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.DataCollectionError,
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.SessionSamplingError,
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.SessionInstallationsError(fakeError),
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.DisabledViaSettingsError,
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.DataTransportError(fakeError),
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]
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// errs2 is off by one from errs so none of the elements match
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let errsOffByOne: [FirebaseSessionsError] = [
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.DataTransportError(fakeError),
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.DataCollectionError,
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.SessionSamplingError,
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.SessionInstallationsError(fakeError),
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.DisabledViaSettingsError,
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]
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for (i, err) in errs.enumerated() {
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XCTAssertNotEqual(err, errsOffByOne[i])
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}
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}
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}
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