Abseil Common Libraries (C++) (grcp 依赖)
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272 lines
9.3 KiB
272 lines
9.3 KiB
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// Copyright 2019 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/flags/reflection.h" |
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#include <memory> |
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#include <string> |
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#include "gmock/gmock.h" |
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#include "gtest/gtest.h" |
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#include "absl/flags/declare.h" |
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#include "absl/flags/flag.h" |
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#include "absl/flags/internal/commandlineflag.h" |
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#include "absl/flags/marshalling.h" |
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#include "absl/memory/memory.h" |
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#include "absl/strings/str_cat.h" |
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#include "absl/strings/str_split.h" |
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ABSL_FLAG(int, int_flag, 1, "int_flag help"); |
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ABSL_FLAG(std::string, string_flag, "dflt", "string_flag help"); |
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ABSL_RETIRED_FLAG(bool, bool_retired_flag, false, "bool_retired_flag help"); |
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ABSL_DECLARE_FLAG(bool, help); |
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namespace { |
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namespace flags = absl::flags_internal; |
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class ReflectionTest : public testing::Test { |
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protected: |
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void SetUp() override { flag_saver_ = absl::make_unique<absl::FlagSaver>(); } |
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void TearDown() override { flag_saver_.reset(); } |
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private: |
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std::unique_ptr<absl::FlagSaver> flag_saver_; |
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}; |
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// -------------------------------------------------------------------- |
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TEST_F(ReflectionTest, TestFindCommandLineFlag) { |
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auto* handle = absl::FindCommandLineFlag("some_flag"); |
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EXPECT_EQ(handle, nullptr); |
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handle = absl::FindCommandLineFlag("int_flag"); |
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EXPECT_NE(handle, nullptr); |
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handle = absl::FindCommandLineFlag("string_flag"); |
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EXPECT_NE(handle, nullptr); |
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handle = absl::FindCommandLineFlag("bool_retired_flag"); |
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EXPECT_NE(handle, nullptr); |
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} |
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// -------------------------------------------------------------------- |
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TEST_F(ReflectionTest, TestGetAllFlags) { |
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(void)absl::GetFlag(FLAGS_help); // Force linking of usage flags. |
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auto all_flags = absl::GetAllFlags(); |
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EXPECT_NE(all_flags.find("int_flag"), all_flags.end()); |
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EXPECT_NE(all_flags.find("bool_retired_flag"), all_flags.end()); |
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EXPECT_NE(all_flags.find("help"), all_flags.end()); |
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EXPECT_EQ(all_flags.find("some_undefined_flag"), all_flags.end()); |
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std::vector<absl::string_view> flag_names_first_attempt; |
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auto all_flags_1 = absl::GetAllFlags(); |
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for (auto f : all_flags_1) { |
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flag_names_first_attempt.push_back(f.first); |
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} |
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std::vector<absl::string_view> flag_names_second_attempt; |
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auto all_flags_2 = absl::GetAllFlags(); |
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for (auto f : all_flags_2) { |
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flag_names_second_attempt.push_back(f.first); |
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} |
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EXPECT_THAT(flag_names_first_attempt, |
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::testing::UnorderedElementsAreArray(flag_names_second_attempt)); |
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} |
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// -------------------------------------------------------------------- |
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struct CustomUDT { |
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CustomUDT() : a(1), b(1) {} |
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CustomUDT(int a_, int b_) : a(a_), b(b_) {} |
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friend bool operator==(const CustomUDT& f1, const CustomUDT& f2) { |
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return f1.a == f2.a && f1.b == f2.b; |
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} |
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int a; |
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int b; |
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}; |
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bool AbslParseFlag(absl::string_view in, CustomUDT* f, std::string*) { |
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std::vector<absl::string_view> parts = |
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absl::StrSplit(in, ':', absl::SkipWhitespace()); |
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if (parts.size() != 2) return false; |
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if (!absl::SimpleAtoi(parts[0], &f->a)) return false; |
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if (!absl::SimpleAtoi(parts[1], &f->b)) return false; |
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return true; |
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} |
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std::string AbslUnparseFlag(const CustomUDT& f) { |
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return absl::StrCat(f.a, ":", f.b); |
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} |
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} // namespace |
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// -------------------------------------------------------------------- |
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ABSL_FLAG(bool, test_flag_01, true, ""); |
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ABSL_FLAG(int, test_flag_02, 1234, ""); |
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ABSL_FLAG(int16_t, test_flag_03, -34, ""); |
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ABSL_FLAG(uint16_t, test_flag_04, 189, ""); |
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ABSL_FLAG(int32_t, test_flag_05, 10765, ""); |
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ABSL_FLAG(uint32_t, test_flag_06, 40000, ""); |
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ABSL_FLAG(int64_t, test_flag_07, -1234567, ""); |
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ABSL_FLAG(uint64_t, test_flag_08, 9876543, ""); |
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ABSL_FLAG(double, test_flag_09, -9.876e-50, ""); |
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ABSL_FLAG(float, test_flag_10, 1.234e12f, ""); |
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ABSL_FLAG(std::string, test_flag_11, "", ""); |
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ABSL_FLAG(absl::Duration, test_flag_12, absl::Minutes(10), ""); |
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static int counter = 0; |
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ABSL_FLAG(int, test_flag_13, 200, "").OnUpdate([]() { counter++; }); |
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ABSL_FLAG(CustomUDT, test_flag_14, {}, ""); |
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namespace { |
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TEST_F(ReflectionTest, TestFlagSaverInScope) { |
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{ |
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absl::FlagSaver s; |
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counter = 0; |
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absl::SetFlag(&FLAGS_test_flag_01, false); |
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absl::SetFlag(&FLAGS_test_flag_02, -1021); |
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absl::SetFlag(&FLAGS_test_flag_03, 6009); |
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absl::SetFlag(&FLAGS_test_flag_04, 44); |
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absl::SetFlag(&FLAGS_test_flag_05, +800); |
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absl::SetFlag(&FLAGS_test_flag_06, -40978756); |
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absl::SetFlag(&FLAGS_test_flag_07, 23405); |
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absl::SetFlag(&FLAGS_test_flag_08, 975310); |
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absl::SetFlag(&FLAGS_test_flag_09, 1.00001); |
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absl::SetFlag(&FLAGS_test_flag_10, -3.54f); |
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absl::SetFlag(&FLAGS_test_flag_11, "asdf"); |
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absl::SetFlag(&FLAGS_test_flag_12, absl::Hours(20)); |
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absl::SetFlag(&FLAGS_test_flag_13, 4); |
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absl::SetFlag(&FLAGS_test_flag_14, CustomUDT{-1, -2}); |
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} |
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EXPECT_EQ(absl::GetFlag(FLAGS_test_flag_01), true); |
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EXPECT_EQ(absl::GetFlag(FLAGS_test_flag_02), 1234); |
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EXPECT_EQ(absl::GetFlag(FLAGS_test_flag_03), -34); |
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EXPECT_EQ(absl::GetFlag(FLAGS_test_flag_04), 189); |
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EXPECT_EQ(absl::GetFlag(FLAGS_test_flag_05), 10765); |
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EXPECT_EQ(absl::GetFlag(FLAGS_test_flag_06), 40000); |
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EXPECT_EQ(absl::GetFlag(FLAGS_test_flag_07), -1234567); |
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EXPECT_EQ(absl::GetFlag(FLAGS_test_flag_08), 9876543); |
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EXPECT_NEAR(absl::GetFlag(FLAGS_test_flag_09), -9.876e-50, 1e-55); |
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EXPECT_NEAR(absl::GetFlag(FLAGS_test_flag_10), 1.234e12f, 1e5f); |
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EXPECT_EQ(absl::GetFlag(FLAGS_test_flag_11), ""); |
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EXPECT_EQ(absl::GetFlag(FLAGS_test_flag_12), absl::Minutes(10)); |
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EXPECT_EQ(absl::GetFlag(FLAGS_test_flag_13), 200); |
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EXPECT_EQ(absl::GetFlag(FLAGS_test_flag_14), CustomUDT{}); |
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EXPECT_EQ(counter, 2); |
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} |
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// -------------------------------------------------------------------- |
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TEST_F(ReflectionTest, TestFlagSaverVsUpdateViaReflection) { |
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{ |
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absl::FlagSaver s; |
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counter = 0; |
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std::string error; |
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EXPECT_TRUE( |
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absl::FindCommandLineFlag("test_flag_01")->ParseFrom("false", &error)) |
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<< error; |
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EXPECT_TRUE( |
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absl::FindCommandLineFlag("test_flag_02")->ParseFrom("-4536", &error)) |
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<< error; |
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EXPECT_TRUE( |
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absl::FindCommandLineFlag("test_flag_03")->ParseFrom("111", &error)) |
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<< error; |
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EXPECT_TRUE( |
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absl::FindCommandLineFlag("test_flag_04")->ParseFrom("909", &error)) |
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<< error; |
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EXPECT_TRUE( |
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absl::FindCommandLineFlag("test_flag_05")->ParseFrom("-2004", &error)) |
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<< error; |
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EXPECT_TRUE( |
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absl::FindCommandLineFlag("test_flag_06")->ParseFrom("1000023", &error)) |
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<< error; |
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EXPECT_TRUE( |
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absl::FindCommandLineFlag("test_flag_07")->ParseFrom("69305", &error)) |
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<< error; |
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EXPECT_TRUE(absl::FindCommandLineFlag("test_flag_08") |
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->ParseFrom("1000000001", &error)) |
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<< error; |
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EXPECT_TRUE( |
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absl::FindCommandLineFlag("test_flag_09")->ParseFrom("2.09021", &error)) |
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<< error; |
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EXPECT_TRUE( |
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absl::FindCommandLineFlag("test_flag_10")->ParseFrom("-33.1", &error)) |
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<< error; |
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EXPECT_TRUE( |
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absl::FindCommandLineFlag("test_flag_11")->ParseFrom("ADD_FOO", &error)) |
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<< error; |
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EXPECT_TRUE(absl::FindCommandLineFlag("test_flag_12") |
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->ParseFrom("3h11m16s", &error)) |
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<< error; |
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EXPECT_TRUE( |
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absl::FindCommandLineFlag("test_flag_13")->ParseFrom("0", &error)) |
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<< error; |
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EXPECT_TRUE( |
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absl::FindCommandLineFlag("test_flag_14")->ParseFrom("10:1", &error)) |
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<< error; |
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} |
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EXPECT_EQ(absl::GetFlag(FLAGS_test_flag_01), true); |
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EXPECT_EQ(absl::GetFlag(FLAGS_test_flag_02), 1234); |
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EXPECT_EQ(absl::GetFlag(FLAGS_test_flag_03), -34); |
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EXPECT_EQ(absl::GetFlag(FLAGS_test_flag_04), 189); |
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EXPECT_EQ(absl::GetFlag(FLAGS_test_flag_05), 10765); |
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EXPECT_EQ(absl::GetFlag(FLAGS_test_flag_06), 40000); |
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EXPECT_EQ(absl::GetFlag(FLAGS_test_flag_07), -1234567); |
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EXPECT_EQ(absl::GetFlag(FLAGS_test_flag_08), 9876543); |
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EXPECT_NEAR(absl::GetFlag(FLAGS_test_flag_09), -9.876e-50, 1e-55); |
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EXPECT_NEAR(absl::GetFlag(FLAGS_test_flag_10), 1.234e12f, 1e5f); |
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EXPECT_EQ(absl::GetFlag(FLAGS_test_flag_11), ""); |
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EXPECT_EQ(absl::GetFlag(FLAGS_test_flag_12), absl::Minutes(10)); |
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EXPECT_EQ(absl::GetFlag(FLAGS_test_flag_13), 200); |
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EXPECT_EQ(absl::GetFlag(FLAGS_test_flag_14), CustomUDT{}); |
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EXPECT_EQ(counter, 2); |
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} |
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// -------------------------------------------------------------------- |
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TEST_F(ReflectionTest, TestMultipleFlagSaversInEnclosedScopes) { |
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{ |
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absl::FlagSaver s; |
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absl::SetFlag(&FLAGS_test_flag_08, 10); |
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EXPECT_EQ(absl::GetFlag(FLAGS_test_flag_08), 10); |
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{ |
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absl::FlagSaver s; |
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absl::SetFlag(&FLAGS_test_flag_08, 20); |
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EXPECT_EQ(absl::GetFlag(FLAGS_test_flag_08), 20); |
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{ |
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absl::FlagSaver s; |
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absl::SetFlag(&FLAGS_test_flag_08, -200); |
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EXPECT_EQ(absl::GetFlag(FLAGS_test_flag_08), -200); |
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} |
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EXPECT_EQ(absl::GetFlag(FLAGS_test_flag_08), 20); |
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} |
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EXPECT_EQ(absl::GetFlag(FLAGS_test_flag_08), 10); |
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} |
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EXPECT_EQ(absl::GetFlag(FLAGS_test_flag_08), 9876543); |
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} |
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} // namespace
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