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51 lines
1.0 KiB
C++
51 lines
1.0 KiB
C++
// Part of the Carbon Language project, under the Apache License v2.0 with LLVM
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// Exceptions. See /LICENSE for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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#include "common/vlog.h"
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#include <gmock/gmock.h>
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#include <gtest/gtest.h>
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#include "testing/base/test_raw_ostream.h"
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namespace Carbon::Testing {
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namespace {
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using ::testing::IsEmpty;
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using ::testing::StrEq;
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// Helper class with a vlog_stream_ member for CARBON_VLOG.
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class VLogger {
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public:
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explicit VLogger(bool enable) {
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if (enable) {
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vlog_stream_ = &buffer_;
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}
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}
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void VLog() { CARBON_VLOG() << "Test\n"; }
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auto TakeStr() -> std::string { return buffer_.TakeStr(); }
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private:
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TestRawOstream buffer_;
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llvm::raw_ostream* vlog_stream_ = nullptr;
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};
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TEST(VLogTest, Enabled) {
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VLogger vlog(/*enable=*/true);
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vlog.VLog();
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EXPECT_THAT(vlog.TakeStr(), StrEq("Test\n"));
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}
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TEST(VLogTest, Disabled) {
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VLogger vlog(/*enable=*/false);
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vlog.VLog();
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EXPECT_THAT(vlog.TakeStr(), IsEmpty());
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}
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} // namespace
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} // namespace Carbon::Testing
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