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Unified Diff: testing/coverage_util_ios.mm

Issue 2789433004: Add tools for code coverage support in iOS. (Closed)
Patch Set: Created 3 years, 9 months ago
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« testing/coverage_util_ios.h ('K') | « testing/coverage_util_ios.cc ('k') | no next file » | no next file with comments »
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Index: testing/coverage_util_ios.mm
diff --git a/testing/coverage_util_ios.mm b/testing/coverage_util_ios.mm
new file mode 100644
index 0000000000000000000000000000000000000000..786ee536894f9bce1f844050948a93ae8fce3dd4
--- /dev/null
+++ b/testing/coverage_util_ios.mm
@@ -0,0 +1,33 @@
+// Copyright 2014 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>
+
+extern "C" void __llvm_profile_set_filename(const char* name);
+
+namespace coverage_util {
+
+void SetupIfNecessary() {
+#if !defined(NDEBUG)// && defined(ENABLE_TEST_CODE_COVERAGE)
lpromero 2017/03/31 11:22:06 I commented the ENABLE_TEST_CODE_COVERAGE variable
+ static dispatch_once_t onceToken;
Eugene But (OOO till 7-30) 2017/03/31 18:27:51 s/onceToken/once_token Same Style comment for the
lpromero 2017/03/31 20:35:20 Since this is now a .mm file, isn't it Objective-C
Eugene But (OOO till 7-30) 2017/03/31 20:42:13 C++ Style is used inside C-functions in C++ namesp
+ dispatch_once(&onceToken, ^{
+ // Writes the profraw file to the Documents directory, where the app has
+ // write rights.
+ NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory,
+ NSUserDomainMask, YES);
+ NSString *documentsDirectory = [paths firstObject];
+ NSString *fileName =
+ [documentsDirectory stringByAppendingPathComponent:@"coverage.profraw"];
+
+ // For documentation, see:
+ // http://clang.llvm.org/docs/SourceBasedCodeCoverage.html
+ __llvm_profile_set_filename([fileName UTF8String]);
Eugene But (OOO till 7-30) 2017/03/31 18:27:51 Use sys_string_conversions ?
lpromero 2017/03/31 20:35:20 So there is a catch22 :) base depends on //testing
+
+ // Print the path for easier retrieval.
+ NSLog(@"Coverage data at %@.", fileName);
Eugene But (OOO till 7-30) 2017/03/31 18:27:51 Should this be DLOG instead?
lpromero 2017/03/31 20:35:20 Idem, I can't use base/logging.h.
+ });
+#endif
+}
+
+} // namespace coverage_util
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