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#include <algorithm>
#include <string>
#include <gtest/gtest.h>
#include <gtest/gtest-matchers.h>
#include <gmock/gmock.h>
#include <gmock/gmock-matchers.h>
#include "common.hpp"
#ifdef TEST_MODULE
import cpptrace;
#else
#include <cpptrace/cpptrace.hpp>
#include <cpptrace/from_current.hpp>
#endif
static volatile int truthy = 2;
// NOTE: returning something and then return stacktrace_multi_3(line_numbers) * rand(); is done to prevent TCO even
// under LTO https://github.com/jeremy-rifkin/cpptrace/issues/179#issuecomment-2467302052
CPPTRACE_FORCE_NO_INLINE int stacktrace_from_current_try_catch_3(std::vector<int>& line_numbers) {
static volatile int lto_guard; lto_guard = lto_guard + 1;
if(truthy) { // due to a MSVC warning about unreachable code
line_numbers.insert(line_numbers.begin(), __LINE__ + 1);
throw std::runtime_error("foobar");
}
return 2;
}
CPPTRACE_FORCE_NO_INLINE int stacktrace_from_current_try_catch_2(std::vector<int>& line_numbers) {
static volatile int lto_guard; lto_guard = lto_guard + 1;
line_numbers.insert(line_numbers.begin(), __LINE__ + 1);
return stacktrace_from_current_try_catch_3(line_numbers) * rand();
}
CPPTRACE_FORCE_NO_INLINE int stacktrace_from_current_try_catch_1(std::vector<int>& line_numbers) {
static volatile int lto_guard; lto_guard = lto_guard + 1;
line_numbers.insert(line_numbers.begin(), __LINE__ + 1);
return stacktrace_from_current_try_catch_2(line_numbers) * rand();
}
TEST(FromCurrentTryCatch, Basic) {
std::vector<int> line_numbers;
cpptrace::try_catch(
[&] {
line_numbers.insert(line_numbers.begin(), __LINE__ + 1);
static volatile int tco_guard = stacktrace_from_current_try_catch_1(line_numbers);
(void)tco_guard;
},
[&] (const std::runtime_error& e) {
EXPECT_FALSE(cpptrace::current_exception_was_rethrown());
EXPECT_EQ(e.what(), std::string("foobar"));
const auto& trace = cpptrace::from_current_exception();
ASSERT_GE(trace.frames.size(), 4);
auto it = std::find_if(
trace.frames.begin(),
trace.frames.end(),
[](const cpptrace::stacktrace_frame& frame) {
return frame.symbol.find("stacktrace_from_current_try_catch_3") != std::string::npos;
}
);
ASSERT_NE(it, trace.frames.end());
size_t i = static_cast<size_t>(it - trace.frames.begin());
int j = 0;
ASSERT_LT(i, trace.frames.size());
ASSERT_LT(j, line_numbers.size());
EXPECT_FILE(trace.frames[i].filename, "from_current_try_catch.cpp");
EXPECT_LINE(trace.frames[i].line.value(), line_numbers[j]);
EXPECT_THAT(trace.frames[i].symbol, testing::HasSubstr("stacktrace_from_current_try_catch_3"));
i++;
j++;
ASSERT_LT(i, trace.frames.size());
ASSERT_LT(j, line_numbers.size());
EXPECT_FILE(trace.frames[i].filename, "from_current_try_catch.cpp");
EXPECT_LINE(trace.frames[i].line.value(), line_numbers[j]);
EXPECT_THAT(trace.frames[i].symbol, testing::HasSubstr("stacktrace_from_current_try_catch_2"));
i++;
j++;
ASSERT_LT(i, trace.frames.size());
ASSERT_LT(j, line_numbers.size());
EXPECT_FILE(trace.frames[i].filename, "from_current_try_catch.cpp");
EXPECT_LINE(trace.frames[i].line.value(), line_numbers[j]);
EXPECT_THAT(trace.frames[i].symbol, testing::HasSubstr("stacktrace_from_current_try_catch_1"));
i++;
j++;
ASSERT_LT(i, trace.frames.size());
ASSERT_LT(j, line_numbers.size());
EXPECT_FILE(trace.frames[i].filename, "from_current_try_catch.cpp");
EXPECT_LINE(trace.frames[i].line.value(), line_numbers[j]);
}
);
}
TEST(FromCurrentTryCatch, CorrectHandler) {
std::vector<int> line_numbers;
cpptrace::try_catch(
[&] {
cpptrace::try_catch(
[&] {
line_numbers.insert(line_numbers.begin(), __LINE__ + 1);
stacktrace_from_current_try_catch_1(line_numbers);
},
[&] (const std::logic_error&) {
FAIL();
}
);
},
[&] (const std::logic_error&) {
FAIL();
},
[&] (const std::runtime_error& e) {
EXPECT_EQ(e.what(), std::string("foobar"));
const auto& trace = cpptrace::from_current_exception();
auto it = std::find_if(
trace.frames.begin(),
trace.frames.end(),
[](const cpptrace::stacktrace_frame& frame) {
return frame.symbol.find("stacktrace_from_current_try_catch_3") != std::string::npos;
}
);
EXPECT_NE(it, trace.frames.end());
it = std::find_if(
trace.frames.begin(),
trace.frames.end(),
[](const cpptrace::stacktrace_frame& frame) {
return frame.symbol.find("FromCurrentTryCatch_CorrectHandler_Test::TestBody") != std::string::npos;
}
);
EXPECT_NE(it, trace.frames.end());
}
);
}
TEST(FromCurrentTryCatch, RawTrace) {
std::vector<int> line_numbers;
cpptrace::try_catch(
[&] {
line_numbers.insert(line_numbers.begin(), __LINE__ + 1);
static volatile int tco_guard = stacktrace_from_current_try_catch_1(line_numbers);
(void)tco_guard;
},
[&] (const std::runtime_error& e) {
EXPECT_EQ(e.what(), std::string("foobar"));
const auto& raw_trace = cpptrace::raw_trace_from_current_exception();
auto trace = raw_trace.resolve();
auto it = std::find_if(
trace.frames.begin(),
trace.frames.end(),
[](const cpptrace::stacktrace_frame& frame) {
return frame.symbol.find("stacktrace_from_current_try_catch_3") != std::string::npos;
}
);
EXPECT_NE(it, trace.frames.end());
it = std::find_if(
trace.frames.begin(),
trace.frames.end(),
[](const cpptrace::stacktrace_frame& frame) {
return frame.symbol.find("FromCurrentTryCatch_RawTrace_Test::TestBody") != std::string::npos;
}
);
EXPECT_NE(it, trace.frames.end());
}
);
}
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