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Inject a mock stack trace getter.

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This commit is contained in:
kosak 2015-07-28 00:12:51 +00:00
parent 58a4bb42c8
commit e83085aeb1
1 changed files with 41 additions and 9 deletions
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56
test/gmock-internal-utils_test.cc
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@ -44,6 +44,15 @@
#include "gtest/gtest.h" #include "gtest/gtest.h"
#include "gtest/gtest-spi.h" #include "gtest/gtest-spi.h"
// Indicates that this translation unit is part of Google Test's
// implementation. It must come before gtest-internal-inl.h is
// included, or there will be a compiler error. This trick is to
// prevent a user from accidentally including gtest-internal-inl.h in
// his code.
#define GTEST_IMPLEMENTATION_ 1
#include "src/gtest-internal-inl.h"
#undef GTEST_IMPLEMENTATION_
#if GTEST_OS_CYGWIN #if GTEST_OS_CYGWIN
# include <sys/types.h> // For ssize_t. NOLINT # include <sys/types.h> // For ssize_t. NOLINT
#endif #endif
@ -421,27 +430,50 @@ TEST(LogTest, NoStackTraceWhenStackFramesToSkipIsNegative) {
GMOCK_FLAG(verbose) = saved_flag; GMOCK_FLAG(verbose) = saved_flag;
} }
struct MockStackTraceGetter : testing::internal::OsStackTraceGetterInterface {
virtual string CurrentStackTrace(int max_depth, int skip_count) {
return (testing::Message() << max_depth << "::" << skip_count << "\n")
.GetString();
}
virtual void UponLeavingGTest() {}
};
// Tests that in opt mode, a positive stack_frames_to_skip argument is // Tests that in opt mode, a positive stack_frames_to_skip argument is
// treated as 0. // treated as 0.
TEST(LogTest, NoSkippingStackFrameInOptMode) { TEST(LogTest, NoSkippingStackFrameInOptMode) {
MockStackTraceGetter* mock_os_stack_trace_getter = new MockStackTraceGetter;
GetUnitTestImpl()->set_os_stack_trace_getter(mock_os_stack_trace_getter);
CaptureStdout(); CaptureStdout();
Log(kWarning, "Test log.\n", 100); Log(kWarning, "Test log.\n", 100);
const string log = GetCapturedStdout(); const string log = GetCapturedStdout();
# if defined(NDEBUG) && GTEST_GOOGLE3_MODE_ string expected_trace =
(testing::Message() << GTEST_FLAG(stack_trace_depth) << "::").GetString();
// In opt mode, no stack frame should be skipped. string expected_message =
EXPECT_THAT(log, ContainsRegex("\nGMOCK WARNING:\n" "\nGMOCK WARNING:\n"
"Test log\\.\n"
"Stack trace:\n"
".+"));
# else
// In dbg mode, the stack frames should be skipped.
EXPECT_STREQ("\nGMOCK WARNING:\n"
"Test log.\n" "Test log.\n"
"Stack trace:\n", log.c_str()); "Stack trace:\n" +
expected_trace;
EXPECT_THAT(log, HasSubstr(expected_message));
int skip_count = atoi(log.substr(expected_message.size()).c_str());
# if defined(NDEBUG)
// In opt mode, no stack frame should be skipped.
const int expected_skip_count = 0;
# else
// In dbg mode, the stack frames should be skipped.
const int expected_skip_count = 100;
# endif # endif
// Note that each inner implementation layer will +1 the number to remove
// itself from the trace. This means that the value is a little higher than
// expected, but close enough.
EXPECT_THAT(skip_count,
AllOf(Ge(expected_skip_count), Le(expected_skip_count + 10)));
// Restores the default OS stack trace getter.
GetUnitTestImpl()->set_os_stack_trace_getter(NULL);
} }
// Tests that all logs are printed when the value of the // Tests that all logs are printed when the value of the