From 57759a3525b9c708933ec86da2d907342cc09077 Mon Sep 17 00:00:00 2001 From: Prashant Jaikumar Date: Tue, 5 Mar 2019 15:25:37 -0800 Subject: [PATCH] Added automated test for network transitions on iOS devices --- .../GrpcIosTest.xcodeproj/project.pbxproj | 135 +++++++++++++- .../GrpcIosTestUITests/GrpcIosTestUITests.m | 174 ++++++++++++++++++ .../GrpcIosTestUITests/Info.plist | 22 +++ src/objective-c/manual_tests/Main.storyboard | 1 + src/objective-c/manual_tests/Podfile | 4 +- src/objective-c/manual_tests/ViewController.m | 22 ++- src/objective-c/manual_tests/main.m | 2 + 7 files changed, 352 insertions(+), 8 deletions(-) create mode 100644 src/objective-c/manual_tests/GrpcIosTestUITests/GrpcIosTestUITests.m create mode 100644 src/objective-c/manual_tests/GrpcIosTestUITests/Info.plist diff --git a/src/objective-c/manual_tests/GrpcIosTest.xcodeproj/project.pbxproj b/src/objective-c/manual_tests/GrpcIosTest.xcodeproj/project.pbxproj index 9063719aa2e..3ad16c3af6e 100644 --- a/src/objective-c/manual_tests/GrpcIosTest.xcodeproj/project.pbxproj +++ b/src/objective-c/manual_tests/GrpcIosTest.xcodeproj/project.pbxproj @@ -12,8 +12,19 @@ 5EDA909C220DF1B00046D27A /* main.m in Sources */ = {isa = PBXBuildFile; fileRef = 5EDA9096220DF1B00046D27A /* main.m */; }; 5EDA909E220DF1B00046D27A /* Main.storyboard in Resources */ = {isa = PBXBuildFile; fileRef = 5EDA9098220DF1B00046D27A /* Main.storyboard */; }; 5EDA909F220DF1B00046D27A /* AppDelegate.m in Sources */ = {isa = PBXBuildFile; fileRef = 5EDA9099220DF1B00046D27A /* AppDelegate.m */; }; + B0C18CA7222DEF140002B502 /* GrpcIosTestUITests.m in Sources */ = {isa = PBXBuildFile; fileRef = B0C18CA6222DEF140002B502 /* GrpcIosTestUITests.m */; }; /* End PBXBuildFile section */ +/* Begin PBXContainerItemProxy section */ + B0C18CA9222DEF140002B502 /* PBXContainerItemProxy */ = { + isa = PBXContainerItemProxy; + containerPortal = 5EDA9073220DF0BC0046D27A /* Project object */; + proxyType = 1; + remoteGlobalIDString = 5EDA907A220DF0BC0046D27A; + remoteInfo = GrpcIosTest; + }; +/* End PBXContainerItemProxy section */ + /* Begin PBXFileReference section */ 1D22EC48A487B02F76135EA3 /* libPods-GrpcIosTest.a */ = {isa = PBXFileReference; explicitFileType = archive.ar; includeInIndex = 0; path = "libPods-GrpcIosTest.a"; sourceTree = BUILT_PRODUCTS_DIR; }; 5EDA907B220DF0BC0046D27A /* GrpcIosTest.app */ = {isa = PBXFileReference; explicitFileType = wrapper.application; includeInIndex = 0; path = GrpcIosTest.app; sourceTree = BUILT_PRODUCTS_DIR; }; @@ -24,6 +35,9 @@ 5EDA9099220DF1B00046D27A /* AppDelegate.m */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.objc; path = AppDelegate.m; sourceTree = SOURCE_ROOT; }; 7C9FAFB11727DCA50888C1B8 /* Pods-GrpcIosTest.debug.xcconfig */ = {isa = PBXFileReference; includeInIndex = 1; lastKnownFileType = text.xcconfig; name = "Pods-GrpcIosTest.debug.xcconfig"; path = "Pods/Target Support Files/Pods-GrpcIosTest/Pods-GrpcIosTest.debug.xcconfig"; sourceTree = ""; }; A4E7CA72304A7B43FE8A5BC7 /* Pods-GrpcIosTest.release.xcconfig */ = {isa = PBXFileReference; includeInIndex = 1; lastKnownFileType = text.xcconfig; name = "Pods-GrpcIosTest.release.xcconfig"; path = "Pods/Target Support Files/Pods-GrpcIosTest/Pods-GrpcIosTest.release.xcconfig"; sourceTree = ""; }; + B0C18CA4222DEF140002B502 /* GrpcIosTestUITests.xctest */ = {isa = PBXFileReference; explicitFileType = wrapper.cfbundle; includeInIndex = 0; path = GrpcIosTestUITests.xctest; sourceTree = BUILT_PRODUCTS_DIR; }; + B0C18CA6222DEF140002B502 /* GrpcIosTestUITests.m */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.objc; path = GrpcIosTestUITests.m; sourceTree = ""; }; + B0C18CA8222DEF140002B502 /* Info.plist */ = {isa = PBXFileReference; lastKnownFileType = text.plist.xml; path = Info.plist; sourceTree = ""; }; /* End PBXFileReference section */ /* Begin PBXFrameworksBuildPhase section */ @@ -35,6 +49,13 @@ ); runOnlyForDeploymentPostprocessing = 0; }; + B0C18CA1222DEF140002B502 /* Frameworks */ = { + isa = PBXFrameworksBuildPhase; + buildActionMask = 2147483647; + files = ( + ); + runOnlyForDeploymentPostprocessing = 0; + }; /* End PBXFrameworksBuildPhase section */ /* Begin PBXGroup section */ @@ -55,6 +76,7 @@ 5EDA9096220DF1B00046D27A /* main.m */, 5EDA9098220DF1B00046D27A /* Main.storyboard */, 5EDA9094220DF1B00046D27A /* ViewController.m */, + B0C18CA5222DEF140002B502 /* GrpcIosTestUITests */, 5EDA907C220DF0BC0046D27A /* Products */, 2B8131AC634883AFEC02557C /* Pods */, E73D92116C1C328622A8C77F /* Frameworks */, @@ -65,10 +87,20 @@ isa = PBXGroup; children = ( 5EDA907B220DF0BC0046D27A /* GrpcIosTest.app */, + B0C18CA4222DEF140002B502 /* GrpcIosTestUITests.xctest */, ); name = Products; sourceTree = ""; }; + B0C18CA5222DEF140002B502 /* GrpcIosTestUITests */ = { + isa = PBXGroup; + children = ( + B0C18CA6222DEF140002B502 /* GrpcIosTestUITests.m */, + B0C18CA8222DEF140002B502 /* Info.plist */, + ); + path = GrpcIosTestUITests; + sourceTree = ""; + }; E73D92116C1C328622A8C77F /* Frameworks */ = { isa = PBXGroup; children = ( @@ -99,6 +131,24 @@ productReference = 5EDA907B220DF0BC0046D27A /* GrpcIosTest.app */; productType = "com.apple.product-type.application"; }; + B0C18CA3222DEF140002B502 /* GrpcIosTestUITests */ = { + isa = PBXNativeTarget; + buildConfigurationList = B0C18CAD222DEF140002B502 /* Build configuration list for PBXNativeTarget "GrpcIosTestUITests" */; + buildPhases = ( + B0C18CA0222DEF140002B502 /* Sources */, + B0C18CA1222DEF140002B502 /* Frameworks */, + B0C18CA2222DEF140002B502 /* Resources */, + ); + buildRules = ( + ); + dependencies = ( + B0C18CAA222DEF140002B502 /* PBXTargetDependency */, + ); + name = GrpcIosTestUITests; + productName = GrpcIosTestUITests; + productReference = B0C18CA4222DEF140002B502 /* GrpcIosTestUITests.xctest */; + productType = "com.apple.product-type.bundle.ui-testing"; + }; /* End PBXNativeTarget section */ /* Begin PBXProject section */ @@ -111,6 +161,10 @@ 5EDA907A220DF0BC0046D27A = { CreatedOnToolsVersion = 10.0; }; + B0C18CA3222DEF140002B502 = { + CreatedOnToolsVersion = 10.0; + TestTargetID = 5EDA907A220DF0BC0046D27A; + }; }; }; buildConfigurationList = 5EDA9076220DF0BC0046D27A /* Build configuration list for PBXProject "GrpcIosTest" */; @@ -127,6 +181,7 @@ projectRoot = ""; targets = ( 5EDA907A220DF0BC0046D27A /* GrpcIosTest */, + B0C18CA3222DEF140002B502 /* GrpcIosTestUITests */, ); }; /* End PBXProject section */ @@ -140,6 +195,13 @@ ); runOnlyForDeploymentPostprocessing = 0; }; + B0C18CA2222DEF140002B502 /* Resources */ = { + isa = PBXResourcesBuildPhase; + buildActionMask = 2147483647; + files = ( + ); + runOnlyForDeploymentPostprocessing = 0; + }; /* End PBXResourcesBuildPhase section */ /* Begin PBXShellScriptBuildPhase section */ @@ -200,8 +262,24 @@ ); runOnlyForDeploymentPostprocessing = 0; }; + B0C18CA0222DEF140002B502 /* Sources */ = { + isa = PBXSourcesBuildPhase; + buildActionMask = 2147483647; + files = ( + B0C18CA7222DEF140002B502 /* GrpcIosTestUITests.m in Sources */, + ); + runOnlyForDeploymentPostprocessing = 0; + }; /* End PBXSourcesBuildPhase section */ +/* Begin PBXTargetDependency section */ + B0C18CAA222DEF140002B502 /* PBXTargetDependency */ = { + isa = PBXTargetDependency; + target = 5EDA907A220DF0BC0046D27A /* GrpcIosTest */; + targetProxy = B0C18CA9222DEF140002B502 /* PBXContainerItemProxy */; + }; +/* End PBXTargetDependency section */ + /* Begin XCBuildConfiguration section */ 5EDA908F220DF0BD0046D27A /* Debug */ = { isa = XCBuildConfiguration; @@ -321,7 +399,7 @@ buildSettings = { ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon; CODE_SIGN_STYLE = Manual; - DEVELOPMENT_TEAM = ""; + DEVELOPMENT_TEAM = EQHXZ8M8AV; INFOPLIST_FILE = Info.plist; IPHONEOS_DEPLOYMENT_TARGET = 11.0; LD_RUNPATH_SEARCH_PATHS = ( @@ -330,7 +408,7 @@ ); PRODUCT_BUNDLE_IDENTIFIER = io.grpc.GrpcIosTest; PRODUCT_NAME = "$(TARGET_NAME)"; - PROVISIONING_PROFILE_SPECIFIER = ""; + PROVISIONING_PROFILE_SPECIFIER = "Google Development"; TARGETED_DEVICE_FAMILY = "1,2"; }; name = Debug; @@ -341,7 +419,7 @@ buildSettings = { ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon; CODE_SIGN_STYLE = Manual; - DEVELOPMENT_TEAM = ""; + DEVELOPMENT_TEAM = EQHXZ8M8AV; INFOPLIST_FILE = Info.plist; IPHONEOS_DEPLOYMENT_TARGET = 11.0; LD_RUNPATH_SEARCH_PATHS = ( @@ -350,11 +428,51 @@ ); PRODUCT_BUNDLE_IDENTIFIER = io.grpc.GrpcIosTest; PRODUCT_NAME = "$(TARGET_NAME)"; - PROVISIONING_PROFILE_SPECIFIER = ""; + PROVISIONING_PROFILE_SPECIFIER = "Google Development"; TARGETED_DEVICE_FAMILY = "1,2"; }; name = Release; }; + B0C18CAB222DEF140002B502 /* Debug */ = { + isa = XCBuildConfiguration; + buildSettings = { + CODE_SIGN_STYLE = Manual; + DEVELOPMENT_TEAM = EQHXZ8M8AV; + INFOPLIST_FILE = GrpcIosTestUITests/Info.plist; + LD_RUNPATH_SEARCH_PATHS = ( + "$(inherited)", + "@executable_path/Frameworks", + "@loader_path/Frameworks", + ); + PRODUCT_BUNDLE_IDENTIFIER = com.google.GrpcIosTestUITests; + PRODUCT_NAME = "$(TARGET_NAME)"; + PROVISIONING_PROFILE = ""; + PROVISIONING_PROFILE_SPECIFIER = "Google Development"; + TARGETED_DEVICE_FAMILY = "1,2"; + TEST_TARGET_NAME = GrpcIosTest; + }; + name = Debug; + }; + B0C18CAC222DEF140002B502 /* Release */ = { + isa = XCBuildConfiguration; + buildSettings = { + CODE_SIGN_STYLE = Manual; + DEVELOPMENT_TEAM = EQHXZ8M8AV; + INFOPLIST_FILE = GrpcIosTestUITests/Info.plist; + LD_RUNPATH_SEARCH_PATHS = ( + "$(inherited)", + "@executable_path/Frameworks", + "@loader_path/Frameworks", + ); + PRODUCT_BUNDLE_IDENTIFIER = com.google.GrpcIosTestUITests; + PRODUCT_NAME = "$(TARGET_NAME)"; + PROVISIONING_PROFILE = ""; + PROVISIONING_PROFILE_SPECIFIER = "Google Development"; + TARGETED_DEVICE_FAMILY = "1,2"; + TEST_TARGET_NAME = GrpcIosTest; + }; + name = Release; + }; /* End XCBuildConfiguration section */ /* Begin XCConfigurationList section */ @@ -376,6 +494,15 @@ defaultConfigurationIsVisible = 0; defaultConfigurationName = Release; }; + B0C18CAD222DEF140002B502 /* Build configuration list for PBXNativeTarget "GrpcIosTestUITests" */ = { + isa = XCConfigurationList; + buildConfigurations = ( + B0C18CAB222DEF140002B502 /* Debug */, + B0C18CAC222DEF140002B502 /* Release */, + ); + defaultConfigurationIsVisible = 0; + defaultConfigurationName = Release; + }; /* End XCConfigurationList section */ }; rootObject = 5EDA9073220DF0BC0046D27A /* Project object */; diff --git a/src/objective-c/manual_tests/GrpcIosTestUITests/GrpcIosTestUITests.m b/src/objective-c/manual_tests/GrpcIosTestUITests/GrpcIosTestUITests.m new file mode 100644 index 00000000000..b0a929e689d --- /dev/null +++ b/src/objective-c/manual_tests/GrpcIosTestUITests/GrpcIosTestUITests.m @@ -0,0 +1,174 @@ +/* + * + * Copyright 2019 gRPC authors. + * + * 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 + +NSTimeInterval const kWaitTime = 30; + +@interface GrpcIosTestUITests : XCTestCase +@end + +@implementation GrpcIosTestUITests { + XCUIApplication *testApp; + XCUIApplication *settingsApp; +} + +- (void)setUp { + self.continueAfterFailure = NO; + [[[XCUIApplication alloc] init] launch]; + testApp = [[XCUIApplication alloc] initWithBundleIdentifier:@"io.grpc.GrpcIosTest"]; + settingsApp = [[XCUIApplication alloc] initWithBundleIdentifier:@"com.apple.Preferences"]; + [settingsApp activate]; + // Go back to the first page of Settings. + XCUIElement *backButton = settingsApp.navigationBars.buttons.firstMatch; + while (backButton.exists) { + [backButton tap]; + } + XCTAssert([settingsApp.navigationBars[@"Settings"] waitForExistenceWithTimeout:kWaitTime]); + // Turn off airplane mode + [self setAirplaneMode:NO]; +} + +- (void)tearDown { +} + +- (void)doUnaryCall { + [testApp activate]; + [testApp.buttons[@"Unary call"] tap]; +} + +- (void)doStreamingCall { + [testApp activate]; + [testApp.buttons[@"Start streaming call"] tap]; + [testApp.buttons[@"Send Message"] tap]; + [testApp.buttons[@"Stop streaming call"] tap]; +} + +- (void)expectCallSuccess { + XCTAssert([testApp.staticTexts[@"Call done"] waitForExistenceWithTimeout:kWaitTime]); +} + +- (void)expectCallFailed { + XCTAssert([testApp.staticTexts[@"Call failed"] waitForExistenceWithTimeout:kWaitTime]); +} + +- (void)setAirplaneMode:(BOOL)to { + [settingsApp activate]; + XCUIElement *mySwitch = settingsApp.tables.element.cells.switches[@"Airplane Mode"]; + BOOL from = [(NSString *)mySwitch.value boolValue]; + if (from != to) { + [mySwitch tap]; + // wait for gRPC to detect the change + sleep(10); + } + XCTAssert([(NSString *)mySwitch.value boolValue] == to); +} + +- (void)testBackgroundBeforeUnaryCall { + // Open test app + [testApp activate]; + + // Send test app to background + [XCUIDevice.sharedDevice pressButton:XCUIDeviceButtonHome]; + sleep(5); + + // Bring test app to foreground and make a unary call. Call should succeed + [self doUnaryCall]; + [self expectCallSuccess]; +} + +- (void)testBackgroundBeforeStreamingCall { + // Open test app + [testApp activate]; + + // Send test app to background + [XCUIDevice.sharedDevice pressButton:XCUIDeviceButtonHome]; + sleep(5); + + // Bring test app to foreground and make a streaming call. Call should succeed. + [self doStreamingCall]; + [self expectCallSuccess]; +} + +- (void)testUnaryCallAfterNetworkFlap { + // Open test app and make a unary call. Channel to server should be open after this. + [self doUnaryCall]; + [self expectCallSuccess]; + + // Toggle airplane mode on and off + [self setAirplaneMode:YES]; + [self setAirplaneMode:NO]; + + // Bring test app to foreground and make a unary call. The call should succeed + [self doUnaryCall]; + [self expectCallSuccess]; +} + +- (void)testStreamingCallAfterNetworkFlap { + // Open test app and make a unary call. Channel to server should be open after this. + [self doUnaryCall]; + [self expectCallSuccess]; + + // Toggle airplane mode on and off + [self setAirplaneMode:YES]; + [self setAirplaneMode:NO]; + + [self doStreamingCall]; + [self expectCallSuccess]; +} + +- (void)testUnaryCallWhileNetworkDown { + // Open test app and make a unary call. Channel to server should be open after this. + [self doUnaryCall]; + [self expectCallSuccess]; + + // Turn on airplane mode + [self setAirplaneMode:YES]; + + // Unary call should fail + [self doUnaryCall]; + [self expectCallFailed]; + + // Turn off airplane mode + [self setAirplaneMode:NO]; + + // Unary call should succeed + [self doUnaryCall]; + [self expectCallSuccess]; +} + +- (void)testStreamingCallWhileNetworkDown { + // Open test app and make a unary call. Channel to server should be open after this. + [self doUnaryCall]; + [self expectCallSuccess]; + + // Turn on airplane mode + [self setAirplaneMode:YES]; + + // Streaming call should fail + [self doStreamingCall]; + [self expectCallFailed]; + + // Turn off airplane mode + [self setAirplaneMode:NO]; + + // Unary call should succeed + [self doStreamingCall]; + [self expectCallSuccess]; +} +@end diff --git a/src/objective-c/manual_tests/GrpcIosTestUITests/Info.plist b/src/objective-c/manual_tests/GrpcIosTestUITests/Info.plist new file mode 100644 index 00000000000..6c40a6cd0c4 --- /dev/null +++ b/src/objective-c/manual_tests/GrpcIosTestUITests/Info.plist @@ -0,0 +1,22 @@ + + + + + CFBundleDevelopmentRegion + $(DEVELOPMENT_LANGUAGE) + CFBundleExecutable + $(EXECUTABLE_NAME) + CFBundleIdentifier + $(PRODUCT_BUNDLE_IDENTIFIER) + CFBundleInfoDictionaryVersion + 6.0 + CFBundleName + $(PRODUCT_NAME) + CFBundlePackageType + BNDL + CFBundleShortVersionString + 1.0 + CFBundleVersion + 1 + + diff --git a/src/objective-c/manual_tests/Main.storyboard b/src/objective-c/manual_tests/Main.storyboard index e88f30e324b..e7e0530efcd 100644 --- a/src/objective-c/manual_tests/Main.storyboard +++ b/src/objective-c/manual_tests/Main.storyboard @@ -4,6 +4,7 @@ + diff --git a/src/objective-c/manual_tests/Podfile b/src/objective-c/manual_tests/Podfile index 7cb650a3412..919e649be71 100644 --- a/src/objective-c/manual_tests/Podfile +++ b/src/objective-c/manual_tests/Podfile @@ -18,8 +18,8 @@ GrpcIosTest pod 'BoringSSL-GRPC', :podspec => "#{GRPC_LOCAL_SRC}/src/objective-c", :inhibit_warnings => true - pod 'gRPC', :path => GRPC_LOCAL_SRC - pod 'gRPC-Core', :path => GRPC_LOCAL_SRC + pod 'gRPC/CFStream', :path => GRPC_LOCAL_SRC + pod 'gRPC-Core/CFStream-Implementation', :path => GRPC_LOCAL_SRC pod 'gRPC-RxLibrary', :path => GRPC_LOCAL_SRC pod 'gRPC-ProtoRPC', :path => GRPC_LOCAL_SRC, :inhibit_warnings => true pod 'RemoteTest', :path => "../tests/RemoteTestClient", :inhibit_warnings => true diff --git a/src/objective-c/manual_tests/ViewController.m b/src/objective-c/manual_tests/ViewController.m index 00bb516bdfc..813b176f3e8 100644 --- a/src/objective-c/manual_tests/ViewController.m +++ b/src/objective-c/manual_tests/ViewController.m @@ -27,7 +27,7 @@ NSString *const kRemoteHost = @"grpc-test.sandbox.googleapis.com"; const int32_t kMessageSize = 100; @interface ViewController : UIViewController - +@property(strong, nonatomic) UILabel *fromLabel; @end @implementation ViewController { @@ -35,16 +35,25 @@ const int32_t kMessageSize = 100; dispatch_queue_t _dispatchQueue; GRPCStreamingProtoCall *_call; } +- (instancetype)init { + self = [super init]; + return self; +} - (void)viewDidLoad { [super viewDidLoad]; _dispatchQueue = dispatch_queue_create(NULL, DISPATCH_QUEUE_SERIAL); + _fromLabel = [[UILabel alloc] initWithFrame:CGRectMake(100, 500, 200, 20)]; + _fromLabel.textColor = [UIColor blueColor]; + _fromLabel.backgroundColor = [UIColor whiteColor]; + [self.view addSubview:_fromLabel]; } - (IBAction)tapUnaryCall:(id)sender { if (_service == nil) { _service = [RMTTestService serviceWithHost:kRemoteHost]; } + self->_fromLabel.text = @""; // Set up request proto message RMTSimpleRequest *request = [RMTSimpleRequest message]; @@ -61,6 +70,7 @@ const int32_t kMessageSize = 100; if (_service == nil) { _service = [RMTTestService serviceWithHost:kRemoteHost]; } + self->_fromLabel.text = @""; // Set up request proto message RMTStreamingOutputCallRequest *request = RMTStreamingOutputCallRequest.message; @@ -92,7 +102,6 @@ const int32_t kMessageSize = 100; if (_call == nil) return; [_call finish]; - _call = nil; } @@ -107,6 +116,15 @@ const int32_t kMessageSize = 100; - (void)didCloseWithTrailingMetadata:(NSDictionary *)trailingMetadata error:(nullable NSError *)error { NSLog(@"Recv trailing metadata: %@, error: %@", trailingMetadata, error); + if (error == nil) { + dispatch_async(dispatch_get_main_queue(), ^{ + self->_fromLabel.text = @"Call done"; + }); + } else { + dispatch_async(dispatch_get_main_queue(), ^{ + self->_fromLabel.text = @"Call failed"; + }); + } } - (dispatch_queue_t)dispatchQueue { diff --git a/src/objective-c/manual_tests/main.m b/src/objective-c/manual_tests/main.m index 2797c6f17f2..451b50cc0e2 100644 --- a/src/objective-c/manual_tests/main.m +++ b/src/objective-c/manual_tests/main.m @@ -21,6 +21,8 @@ int main(int argc, char* argv[]) { @autoreleasepool { + // enable CFStream API + setenv("grpc_cfstream", "1", 1); return UIApplicationMain(argc, argv, nil, NSStringFromClass([AppDelegate class])); } }