fc8dc48020
git-subtree-dir: third_party/abseil_cpp git-subtree-mainline:ffb2ae54begit-subtree-split:768eb2ca28
204 lines
8.9 KiB
C++
204 lines
8.9 KiB
C++
// Copyright 2018 The Abseil Authors.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// https://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#include "absl/base/log_severity.h"
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#include <cstdint>
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#include <ios>
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#include <limits>
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#include <ostream>
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#include <sstream>
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#include <string>
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#include <tuple>
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#include "gmock/gmock.h"
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#include "gtest/gtest.h"
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#include "absl/flags/internal/flag.h"
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#include "absl/flags/marshalling.h"
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#include "absl/strings/str_cat.h"
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namespace {
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using ::testing::Eq;
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using ::testing::IsFalse;
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using ::testing::IsTrue;
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using ::testing::TestWithParam;
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using ::testing::Values;
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std::string StreamHelper(absl::LogSeverity value) {
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std::ostringstream stream;
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stream << value;
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return stream.str();
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}
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TEST(StreamTest, Works) {
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EXPECT_THAT(StreamHelper(static_cast<absl::LogSeverity>(-100)),
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Eq("absl::LogSeverity(-100)"));
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EXPECT_THAT(StreamHelper(absl::LogSeverity::kInfo), Eq("INFO"));
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EXPECT_THAT(StreamHelper(absl::LogSeverity::kWarning), Eq("WARNING"));
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EXPECT_THAT(StreamHelper(absl::LogSeverity::kError), Eq("ERROR"));
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EXPECT_THAT(StreamHelper(absl::LogSeverity::kFatal), Eq("FATAL"));
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EXPECT_THAT(StreamHelper(static_cast<absl::LogSeverity>(4)),
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Eq("absl::LogSeverity(4)"));
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}
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static_assert(
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absl::flags_internal::FlagUseOneWordStorage<absl::LogSeverity>::value,
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"Flags of type absl::LogSeverity ought to be lock-free.");
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using ParseFlagFromOutOfRangeIntegerTest = TestWithParam<int64_t>;
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INSTANTIATE_TEST_SUITE_P(
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Instantiation, ParseFlagFromOutOfRangeIntegerTest,
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Values(static_cast<int64_t>(std::numeric_limits<int>::min()) - 1,
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static_cast<int64_t>(std::numeric_limits<int>::max()) + 1));
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TEST_P(ParseFlagFromOutOfRangeIntegerTest, ReturnsError) {
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const std::string to_parse = absl::StrCat(GetParam());
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absl::LogSeverity value;
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std::string error;
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EXPECT_THAT(absl::ParseFlag(to_parse, &value, &error), IsFalse()) << value;
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}
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using ParseFlagFromAlmostOutOfRangeIntegerTest = TestWithParam<int>;
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INSTANTIATE_TEST_SUITE_P(Instantiation,
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ParseFlagFromAlmostOutOfRangeIntegerTest,
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Values(std::numeric_limits<int>::min(),
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std::numeric_limits<int>::max()));
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TEST_P(ParseFlagFromAlmostOutOfRangeIntegerTest, YieldsExpectedValue) {
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const auto expected = static_cast<absl::LogSeverity>(GetParam());
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const std::string to_parse = absl::StrCat(GetParam());
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absl::LogSeverity value;
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std::string error;
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ASSERT_THAT(absl::ParseFlag(to_parse, &value, &error), IsTrue()) << error;
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EXPECT_THAT(value, Eq(expected));
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}
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using ParseFlagFromIntegerMatchingEnumeratorTest =
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TestWithParam<std::tuple<absl::string_view, absl::LogSeverity>>;
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INSTANTIATE_TEST_SUITE_P(
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Instantiation, ParseFlagFromIntegerMatchingEnumeratorTest,
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Values(std::make_tuple("0", absl::LogSeverity::kInfo),
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std::make_tuple(" 0", absl::LogSeverity::kInfo),
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std::make_tuple("-0", absl::LogSeverity::kInfo),
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std::make_tuple("+0", absl::LogSeverity::kInfo),
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std::make_tuple("00", absl::LogSeverity::kInfo),
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std::make_tuple("0 ", absl::LogSeverity::kInfo),
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std::make_tuple("0x0", absl::LogSeverity::kInfo),
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std::make_tuple("1", absl::LogSeverity::kWarning),
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std::make_tuple("+1", absl::LogSeverity::kWarning),
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std::make_tuple("2", absl::LogSeverity::kError),
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std::make_tuple("3", absl::LogSeverity::kFatal)));
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TEST_P(ParseFlagFromIntegerMatchingEnumeratorTest, YieldsExpectedValue) {
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const absl::string_view to_parse = std::get<0>(GetParam());
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const absl::LogSeverity expected = std::get<1>(GetParam());
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absl::LogSeverity value;
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std::string error;
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ASSERT_THAT(absl::ParseFlag(to_parse, &value, &error), IsTrue()) << error;
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EXPECT_THAT(value, Eq(expected));
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}
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using ParseFlagFromOtherIntegerTest =
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TestWithParam<std::tuple<absl::string_view, int>>;
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INSTANTIATE_TEST_SUITE_P(Instantiation, ParseFlagFromOtherIntegerTest,
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Values(std::make_tuple("-1", -1),
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std::make_tuple("4", 4),
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std::make_tuple("010", 10),
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std::make_tuple("0x10", 16)));
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TEST_P(ParseFlagFromOtherIntegerTest, YieldsExpectedValue) {
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const absl::string_view to_parse = std::get<0>(GetParam());
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const auto expected = static_cast<absl::LogSeverity>(std::get<1>(GetParam()));
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absl::LogSeverity value;
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std::string error;
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ASSERT_THAT(absl::ParseFlag(to_parse, &value, &error), IsTrue()) << error;
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EXPECT_THAT(value, Eq(expected));
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}
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using ParseFlagFromEnumeratorTest =
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TestWithParam<std::tuple<absl::string_view, absl::LogSeverity>>;
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INSTANTIATE_TEST_SUITE_P(
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Instantiation, ParseFlagFromEnumeratorTest,
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Values(std::make_tuple("INFO", absl::LogSeverity::kInfo),
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std::make_tuple("info", absl::LogSeverity::kInfo),
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std::make_tuple("kInfo", absl::LogSeverity::kInfo),
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std::make_tuple("iNfO", absl::LogSeverity::kInfo),
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std::make_tuple("kInFo", absl::LogSeverity::kInfo),
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std::make_tuple("WARNING", absl::LogSeverity::kWarning),
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std::make_tuple("warning", absl::LogSeverity::kWarning),
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std::make_tuple("kWarning", absl::LogSeverity::kWarning),
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std::make_tuple("WaRnInG", absl::LogSeverity::kWarning),
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std::make_tuple("KwArNiNg", absl::LogSeverity::kWarning),
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std::make_tuple("ERROR", absl::LogSeverity::kError),
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std::make_tuple("error", absl::LogSeverity::kError),
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std::make_tuple("kError", absl::LogSeverity::kError),
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std::make_tuple("eRrOr", absl::LogSeverity::kError),
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std::make_tuple("kErRoR", absl::LogSeverity::kError),
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std::make_tuple("FATAL", absl::LogSeverity::kFatal),
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std::make_tuple("fatal", absl::LogSeverity::kFatal),
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std::make_tuple("kFatal", absl::LogSeverity::kFatal),
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std::make_tuple("FaTaL", absl::LogSeverity::kFatal),
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std::make_tuple("KfAtAl", absl::LogSeverity::kFatal)));
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TEST_P(ParseFlagFromEnumeratorTest, YieldsExpectedValue) {
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const absl::string_view to_parse = std::get<0>(GetParam());
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const absl::LogSeverity expected = std::get<1>(GetParam());
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absl::LogSeverity value;
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std::string error;
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ASSERT_THAT(absl::ParseFlag(to_parse, &value, &error), IsTrue()) << error;
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EXPECT_THAT(value, Eq(expected));
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}
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using ParseFlagFromGarbageTest = TestWithParam<absl::string_view>;
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INSTANTIATE_TEST_SUITE_P(Instantiation, ParseFlagFromGarbageTest,
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Values("", "\0", " ", "garbage", "kkinfo", "I"));
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TEST_P(ParseFlagFromGarbageTest, ReturnsError) {
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const absl::string_view to_parse = GetParam();
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absl::LogSeverity value;
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std::string error;
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EXPECT_THAT(absl::ParseFlag(to_parse, &value, &error), IsFalse()) << value;
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}
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using UnparseFlagToEnumeratorTest =
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TestWithParam<std::tuple<absl::LogSeverity, absl::string_view>>;
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INSTANTIATE_TEST_SUITE_P(
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Instantiation, UnparseFlagToEnumeratorTest,
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Values(std::make_tuple(absl::LogSeverity::kInfo, "INFO"),
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std::make_tuple(absl::LogSeverity::kWarning, "WARNING"),
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std::make_tuple(absl::LogSeverity::kError, "ERROR"),
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std::make_tuple(absl::LogSeverity::kFatal, "FATAL")));
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TEST_P(UnparseFlagToEnumeratorTest, ReturnsExpectedValueAndRoundTrips) {
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const absl::LogSeverity to_unparse = std::get<0>(GetParam());
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const absl::string_view expected = std::get<1>(GetParam());
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const std::string stringified_value = absl::UnparseFlag(to_unparse);
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EXPECT_THAT(stringified_value, Eq(expected));
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absl::LogSeverity reparsed_value;
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std::string error;
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EXPECT_THAT(absl::ParseFlag(stringified_value, &reparsed_value, &error),
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IsTrue());
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EXPECT_THAT(reparsed_value, Eq(to_unparse));
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}
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using UnparseFlagToOtherIntegerTest = TestWithParam<int>;
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INSTANTIATE_TEST_SUITE_P(Instantiation, UnparseFlagToOtherIntegerTest,
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Values(std::numeric_limits<int>::min(), -1, 4,
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std::numeric_limits<int>::max()));
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TEST_P(UnparseFlagToOtherIntegerTest, ReturnsExpectedValueAndRoundTrips) {
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const absl::LogSeverity to_unparse =
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static_cast<absl::LogSeverity>(GetParam());
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const std::string expected = absl::StrCat(GetParam());
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const std::string stringified_value = absl::UnparseFlag(to_unparse);
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EXPECT_THAT(stringified_value, Eq(expected));
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absl::LogSeverity reparsed_value;
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std::string error;
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EXPECT_THAT(absl::ParseFlag(stringified_value, &reparsed_value, &error),
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IsTrue());
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EXPECT_THAT(reparsed_value, Eq(to_unparse));
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}
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} // namespace
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