Add tools for code coverage support in iOS.
In this CL, support is added to all unit tests targets and the Showcase
Earl Grey tests.
BUG=676034
[email protected],[email protected],[email protected]
Review-Url: https://codereview.chromium.org/2789433004
Cr-Commit-Position: refs/heads/master@{#469301}
diff --git a/testing/coverage_util_ios.mm b/testing/coverage_util_ios.mm
new file mode 100644
index 0000000..a8c8670
--- /dev/null
+++ b/testing/coverage_util_ios.mm
@@ -0,0 +1,38 @@
+// Copyright 2017 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#import <Foundation/Foundation.h>
+
+#import "testing/gtest/ios_enable_coverage.h"
+
+#if !defined(NDEBUG) && BUILDFLAG(IOS_ENABLE_COVERAGE)
+extern "C" void __llvm_profile_set_filename(const char* name);
+#endif
+
+namespace coverage_util {
+
+void ConfigureCoverageReportPath() {
+#if !defined(NDEBUG) && BUILDFLAG(IOS_ENABLE_COVERAGE)
+ static dispatch_once_t once_token;
+ dispatch_once(&once_token, ^{
+ // Writes the profraw file to the Documents directory, where the app has
+ // write rights.
+ NSArray* paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory,
+ NSUserDomainMask, YES);
+ NSString* documents_directory = [paths firstObject];
+ NSString* file_name = [documents_directory
+ stringByAppendingPathComponent:@"coverage.profraw"];
+
+ // For documentation, see:
+ // http://clang.llvm.org/docs/SourceBasedCodeCoverage.html
+ __llvm_profile_set_filename(
+ [file_name cStringUsingEncoding:NSUTF8StringEncoding]);
+
+ // Print the path for easier retrieval.
+ NSLog(@"Coverage data at %@.", file_name);
+ });
+#endif // !defined(NDEBUG) && BUILDFLAG(IOS_ENABLE_COVERAGE)
+}
+
+} // namespace coverage_util
