Move iOS tests to XCTest from gtest.

webrtc/examples/objc/AppRTCMobile/tests/ARDSettingsModel_xctest.mm

 /*
  *  Copyright 2016 The WebRTC project authors. All Rights Reserved.
  *
  *  Use of this source code is governed by a BSD-style license
  *  that can be found in the LICENSE file in the root of the source
  *  tree. An additional intellectual property rights grant can be found
  *  in the file PATENTS.  All contributing project authors may
  *  be found in the AUTHORS file in the root of the source tree.
  */
 
 #import <Foundation/Foundation.h>
 #import <OCMock/OCMock.h>
+#import <XCTest/XCTest.h>
+
+#import "WebRTC/RTCMediaConstraints.h"
+
 #import "ARDSettingsModel+Private.h"
 #import "ARDSettingsStore.h"
-#import "WebRTC/RTCMediaConstraints.h"
-#include "webrtc/base/gunit.h"
 
 
-@interface ARDSettingsModelTests : NSObject {
+@interface ARDSettingsModelTests : XCTestCase {
   ARDSettingsModel *_model;
 }
-
-- (void)testStoringInavlidConstraintReturnsNo;
-- (void)testDefaultMediaFromStore;
-- (void)testWidthConstraintFromStore;
-- (void)testHeightConstraintFromStore;
-
 @end
 
 @implementation ARDSettingsModelTests
 
-- (instancetype)init {
-  self = [super init];
-  if (self) {
-    _model = [[ARDSettingsModel alloc] init];
-  }
-  return self;
-}
-
 - (id)setupMockStoreWithMediaConstraintString:(NSString *)constraintString {
   id storeMock = [OCMockObject mockForClass:[ARDSettingsStore class]];
   [([[storeMock stub] andReturn:constraintString]) videoResolutionConstraints];
 
   id partialMock = [OCMockObject partialMockForObject:_model];
   [[[partialMock stub] andReturn:storeMock] settingsStore];
 
   return storeMock;
 }
 
+- (void)setUp {
+  _model = [[ARDSettingsModel alloc] init];
+}
+
 - (void)testDefaultMediaFromStore {
-  // given
   id storeMock = [self setupMockStoreWithMediaConstraintString:nil];
-
   [[storeMock expect] setVideoResolutionConstraints:@"640x480"];
 
-  // when
   NSString *string = [_model currentVideoResoultionConstraintFromStore];
 
-  // then
-  EXPECT_TRUE([string isEqualToString:@"640x480"]);
+  XCTAssertEqualObjects(string, @"640x480");
   [storeMock verify];
 }
 
-- (void)testStoringInavlidConstraintReturnsNo {
-  // given
-  id storeMock = [self setupMockStoreWithMediaConstraintString:@"960x480"];
-
-  // when
-  BOOL result = [_model storeVideoResoultionConstraint:@"960x480"];
-
-  // then
-  EXPECT_FALSE(result);
+- (void)testStoringInvalidConstraintReturnsNo {
+  __unused id storeMock = [self setupMockStoreWithMediaConstraintString:@"960x480"];
+  XCTAssertFalse([_model storeVideoResoultionConstraint:@"960x480"]);
 }
 
 - (void)testWidthConstraintFromStore {
-  // given
   [self setupMockStoreWithMediaConstraintString:@"1270x480"];
-
-  // when
   NSString *width = [_model currentVideoResolutionWidthFromStore];
 
-  // then
-  EXPECT_TRUE([width isEqualToString:@"1270"]);
+  XCTAssertEqualObjects(width, @"1270");
 }
 
 - (void)testHeightConstraintFromStore {
-  // given
   [self setupMockStoreWithMediaConstraintString:@"960x540"];
-  // when
   NSString *height = [_model currentVideoResolutionHeightFromStore];
 
-  // then
-  EXPECT_TRUE([height isEqualToString:@"540"]);
+  XCTAssertEqualObjects(height, @"540");
 }
 
 - (void)testConstraintComponentIsNilWhenInvalidConstraintString {
-  // given
   [self setupMockStoreWithMediaConstraintString:@"invalid"];
-
-  // when
   NSString *width = [_model currentVideoResolutionWidthFromStore];
 
-  // then
-  EXPECT_TRUE(width == nil);
+  XCTAssertNil(width);
 }
 
 - (void)testConstraintsDictionaryIsNilWhenInvalidConstraintString {
-  // given
   [self setupMockStoreWithMediaConstraintString:@"invalid"];
-
-  // when
   NSDictionary *constraintsDictionary = [_model currentMediaConstraintFromStoreAsRTCDictionary];
 
-  // then
-  EXPECT_TRUE(constraintsDictionary == nil);
+  XCTAssertNil(constraintsDictionary);
 }
 @end
-
-class ARDSettingsModelTest : public ::testing::Test {
- protected:
-  ARDSettingsModelTests *test;
-  ARDSettingsModelTest() { test = [[ARDSettingsModelTests alloc] init]; }
-};
-
-TEST_F(ARDSettingsModelTest, DefaultMediaFromStore) {
-  @autoreleasepool {
-    [test testDefaultMediaFromStore];
-  }
-}
-
-TEST_F(ARDSettingsModelTest, StoringInvalidConstraintsReturnsNo) {
-  @autoreleasepool {
-    [test testStoringInavlidConstraintReturnsNo];
-  }
-}
-
-TEST_F(ARDSettingsModelTest, WidthConstraintFromStore) {
-  @autoreleasepool {
-    [test testWidthConstraintFromStore];
-  }
-}
-
-TEST_F(ARDSettingsModelTest, HeightConstraintFromStore) {
-  @autoreleasepool {
-    [test testHeightConstraintFromStore];
-  }
-}
-
-TEST_F(ARDSettingsModelTest, ConstratintIsNil) {
-  @autoreleasepool {
-    [test testConstraintComponentIsNilWhenInvalidConstraintString];
-  }
-}
-
-TEST_F(ARDSettingsModelTest, DictionaryIsNil) {
-  @autoreleasepool {
-    [test testConstraintsDictionaryIsNilWhenInvalidConstraintString];
-  }
-}