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//===- llvm/unittest/Support/DebugLogTest.cpp -----------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#include "llvm/Support/DebugLog.h"
#include "llvm/Support/raw_ostream.h"
#include "gmock/gmock.h"
#include "gtest/gtest.h"
#include <string>
using namespace llvm;
using testing::Eq;
using testing::HasSubstr;
#ifndef NDEBUG
TEST(DebugLogTest, Basic) {
llvm::DebugFlag = true;
static const char *DT[] = {"A", "B"};
// Clear debug types.
setCurrentDebugTypes(DT, 0);
{
std::string str;
raw_string_ostream os(str);
DEBUGLOG_WITH_STREAM_AND_TYPE(os, nullptr) << "NoType";
EXPECT_FALSE(StringRef(os.str()).starts_with('['));
EXPECT_TRUE(StringRef(os.str()).ends_with("NoType\n"));
}
setCurrentDebugTypes(DT, 2);
{
std::string str;
raw_string_ostream os(str);
DEBUGLOG_WITH_STREAM_AND_TYPE(os, "A") << "A";
DEBUGLOG_WITH_STREAM_AND_TYPE(os, "B") << "B";
EXPECT_TRUE(StringRef(os.str()).starts_with('['));
EXPECT_THAT(os.str(), AllOf(HasSubstr("A\n"), HasSubstr("B\n")));
}
setCurrentDebugType("A");
{
std::string str;
raw_string_ostream os(str);
// Just check that the macro doesn't result in dangling else.
if (true)
DEBUGLOG_WITH_STREAM_AND_TYPE(os, "A") << "A";
else
DEBUGLOG_WITH_STREAM_AND_TYPE(os, "A") << "B";
DEBUGLOG_WITH_STREAM_AND_TYPE(os, "B") << "B";
EXPECT_THAT(os.str(), AllOf(HasSubstr("A\n"), Not(HasSubstr("B\n"))));
int count = 0;
auto inc = [&]() { return ++count; };
EXPECT_THAT(count, Eq(0));
DEBUGLOG_WITH_STREAM_AND_TYPE(os, "A") << inc();
EXPECT_THAT(count, Eq(1));
DEBUGLOG_WITH_STREAM_AND_TYPE(os, "B") << inc();
EXPECT_THAT(count, Eq(1));
}
}
#else
TEST(DebugLogTest, Basic) {
// LDBG should be compiled out in NDEBUG, so just check it compiles and has
// no effect.
llvm::DebugFlag = true;
static const char *DT[] = {"A"};
setCurrentDebugTypes(DT, 0);
int count = 0;
auto inc = [&]() { return ++count; };
EXPECT_THAT(count, Eq(0));
LDBG() << inc();
EXPECT_THAT(count, Eq(0));
}
#endif
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