|  | /* | 
|  | *  Copyright 2017 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 <XCTest/XCTest.h> | 
|  |  | 
|  | #include <vector> | 
|  |  | 
|  | #include "rtc_base/gunit.h" | 
|  |  | 
|  | #import "api/peerconnection/RTCTracing.h" | 
|  | #import "helpers/NSString+StdString.h" | 
|  |  | 
|  | @interface RTCTracingTests : XCTestCase | 
|  | @end | 
|  |  | 
|  | @implementation RTCTracingTests | 
|  |  | 
|  | - (NSString *)documentsFilePathForFileName:(NSString *)fileName { | 
|  | NSParameterAssert(fileName.length); | 
|  | NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES); | 
|  | NSString *documentsDirPath = paths.firstObject; | 
|  | NSString *filePath = | 
|  | [documentsDirPath stringByAppendingPathComponent:fileName]; | 
|  | return filePath; | 
|  | } | 
|  |  | 
|  | - (void)testTracingTestNoInitialization { | 
|  | NSString *filePath = [self documentsFilePathForFileName:@"webrtc-trace.txt"]; | 
|  | EXPECT_EQ(NO, RTCStartInternalCapture(filePath)); | 
|  | RTCStopInternalCapture(); | 
|  | } | 
|  |  | 
|  | @end |