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https://github.com/carbon-language/carbon-lang.git
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Jon Ross-Perkins
2fef1cb713
Also makes the style guide explicitly comment on void, but this was the intent IIRC because it matches Carbon's `-> ()` (and "always" versus "except for void", which we definitely went back and forth on). Includes adjusting function pointers, which I definitely forget this syntax works sometimes. Excludes utils/tree_sitter/src/scanner.c because it claims to be C, but really we should probably fix that to be cpp.
62 lines
1.4 KiB
C++
62 lines
1.4 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 "common/raw_string_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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auto VLog() -> void { CARBON_VLOG("Test\n"); }
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auto VLogFormatArgs() -> void { CARBON_VLOG("Test {0} {1} {2}\n", 1, 2, 3); }
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auto TakeStr() -> std::string { return buffer_.TakeStr(); }
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private:
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RawStringOstream 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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vlog.VLogFormatArgs();
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EXPECT_THAT(vlog.TakeStr(), StrEq("Test 1 2 3\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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TEST(VLogTest, To) {
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RawStringOstream buffer;
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CARBON_VLOG_TO(&buffer, "Test");
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EXPECT_THAT(buffer.TakeStr(), "Test");
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}
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TEST(VLogTest, ToNull) { CARBON_VLOG_TO(nullptr, "Unused"); }
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} // namespace
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} // namespace Carbon::Testing
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