1 files changed, 41 insertions, 0 deletions
diff --git a/third_party/libwebrtc/sdk/objc/unittests/RTCTracingTest.mm b/third_party/libwebrtc/sdk/objc/unittests/RTCTracingTest.mm
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index 0000000000..ff93047bdf
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+++ b/third_party/libwebrtc/sdk/objc/unittests/RTCTracingTest.mm
@@ -0,0 +1,41 @@
+/*
+ *  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