// // Copyright 2019 The Abseil Authors. // // Licensed under the Apache License, Version 2.0 (the "License"); // you may not use this file except in compliance with the License. // You may obtain a copy of the License at // // https://www.apache.org/licenses/LICENSE-2.0 // // Unless required by applicable law or agreed to in writing, software // distributed under the License is distributed on an "AS IS" BASIS, // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. // See the License for the specific language governing permissions and // limitations under the License. #include "absl/flags/reflection.h" #include #include #include "gmock/gmock.h" #include "gtest/gtest.h" #include "absl/flags/config.h" #include "absl/flags/flag.h" #include "absl/memory/memory.h" #include "absl/strings/str_cat.h" #include "absl/strings/str_split.h" ABSL_FLAG(int, int_flag, 1, "int_flag help"); ABSL_FLAG(std::string, string_flag, "dflt", "string_flag help"); ABSL_RETIRED_FLAG(bool, bool_retired_flag, false, "bool_retired_flag help"); namespace { class ReflectionTest : public testing::Test { protected: void SetUp() override { #if ABSL_FLAGS_STRIP_NAMES GTEST_SKIP() << "This test requires flag names to be present"; #endif flag_saver_ = absl::make_unique(); } void TearDown() override { flag_saver_.reset(); } private: std::unique_ptr flag_saver_; }; // -------------------------------------------------------------------- TEST_F(ReflectionTest, TestFindCommandLineFlag) { auto* handle = absl::FindCommandLineFlag("some_flag"); EXPECT_EQ(handle, nullptr); handle = absl::FindCommandLineFlag("int_flag"); EXPECT_NE(handle, nullptr); handle = absl::FindCommandLineFlag("string_flag"); EXPECT_NE(handle, nullptr); handle = absl::FindCommandLineFlag("bool_retired_flag"); EXPECT_NE(handle, nullptr); } // -------------------------------------------------------------------- TEST_F(ReflectionTest, TestGetAllFlags) { auto all_flags = absl::GetAllFlags(); EXPECT_NE(all_flags.find("int_flag"), all_flags.end()); EXPECT_EQ(all_flags.find("bool_retired_flag"), all_flags.end()); EXPECT_EQ(all_flags.find("some_undefined_flag"), all_flags.end()); std::vector flag_names_first_attempt; auto all_flags_1 = absl::GetAllFlags(); for (auto f : all_flags_1) { flag_names_first_attempt.push_back(f.first); } std::vector flag_names_second_attempt; auto all_flags_2 = absl::GetAllFlags(); for (auto f : all_flags_2) { flag_names_second_attempt.push_back(f.first); } EXPECT_THAT(flag_names_first_attempt, ::testing::UnorderedElementsAreArray(flag_names_second_attempt)); } // -------------------------------------------------------------------- struct CustomUDT { CustomUDT() : a(1), b(1) {} CustomUDT(int a_, int b_) : a(a_), b(b_) {} friend bool operator==(const CustomUDT& f1, const CustomUDT& f2) { return f1.a == f2.a && f1.b == f2.b; } int a; int b; }; bool AbslParseFlag(absl::string_view in, CustomUDT* f, std::string*) { std::vector parts = absl::StrSplit(in, ':', absl::SkipWhitespace()); if (parts.size() != 2) return false; if (!absl::SimpleAtoi(parts[0], &f->a)) return false; if (!absl::SimpleAtoi(parts[1], &f->b)) return false; return true; } std::string AbslUnparseFlag(const CustomUDT& f) { return absl::StrCat(f.a, ":", f.b); } } // namespace // -------------------------------------------------------------------- ABSL_FLAG(bool, test_flag_01, true, ""); ABSL_FLAG(int, test_flag_02, 1234, ""); ABSL_FLAG(int16_t, test_flag_03, -34, ""); ABSL_FLAG(uint16_t, test_flag_04, 189, ""); ABSL_FLAG(int32_t, test_flag_05, 10765, ""); ABSL_FLAG(uint32_t, test_flag_06, 40000, ""); ABSL_FLAG(int64_t, test_flag_07, -1234567, ""); ABSL_FLAG(uint64_t, test_flag_08, 9876543, ""); ABSL_FLAG(double, test_flag_09, -9.876e-50, ""); ABSL_FLAG(float, test_flag_10, 1.234e12f, ""); ABSL_FLAG(std::string, test_flag_11, "", ""); ABSL_FLAG(absl::Duration, test_flag_12, absl::Minutes(10), ""); static int counter = 0; ABSL_FLAG(int, test_flag_13, 200, "").OnUpdate([]() { counter++; }); ABSL_FLAG(CustomUDT, test_flag_14, {}, ""); namespace { TEST_F(ReflectionTest, TestFlagSaverInScope) { { absl::FlagSaver s; counter = 0; absl::SetFlag(&FLAGS_test_flag_01, false); absl::SetFlag(&FLAGS_test_flag_02, -1021); absl::SetFlag(&FLAGS_test_flag_03, 6009); absl::SetFlag(&FLAGS_test_flag_04, 44); absl::SetFlag(&FLAGS_test_flag_05, +800); absl::SetFlag(&FLAGS_test_flag_06, -40978756); absl::SetFlag(&FLAGS_test_flag_07, 23405); absl::SetFlag(&FLAGS_test_flag_08, 975310); absl::SetFlag(&FLAGS_test_flag_09, 1.00001); absl::SetFlag(&FLAGS_test_flag_10, -3.54f); absl::SetFlag(&FLAGS_test_flag_11, "asdf"); absl::SetFlag(&FLAGS_test_flag_12, absl::Hours(20)); absl::SetFlag(&FLAGS_test_flag_13, 4); absl::SetFlag(&FLAGS_test_flag_14, CustomUDT{-1, -2}); } EXPECT_EQ(absl::GetFlag(FLAGS_test_flag_01), true); EXPECT_EQ(absl::GetFlag(FLAGS_test_flag_02), 1234); EXPECT_EQ(absl::GetFlag(FLAGS_test_flag_03), -34); EXPECT_EQ(absl::GetFlag(FLAGS_test_flag_04), 189); EXPECT_EQ(absl::GetFlag(FLAGS_test_flag_05), 10765); EXPECT_EQ(absl::GetFlag(FLAGS_test_flag_06), 40000); EXPECT_EQ(absl::GetFlag(FLAGS_test_flag_07), -1234567); EXPECT_EQ(absl::GetFlag(FLAGS_test_flag_08), 9876543); EXPECT_NEAR(absl::GetFlag(FLAGS_test_flag_09), -9.876e-50, 1e-55); EXPECT_NEAR(absl::GetFlag(FLAGS_test_flag_10), 1.234e12f, 1e5f); EXPECT_EQ(absl::GetFlag(FLAGS_test_flag_11), ""); EXPECT_EQ(absl::GetFlag(FLAGS_test_flag_12), absl::Minutes(10)); EXPECT_EQ(absl::GetFlag(FLAGS_test_flag_13), 200); EXPECT_EQ(absl::GetFlag(FLAGS_test_flag_14), CustomUDT{}); EXPECT_EQ(counter, 2); } // -------------------------------------------------------------------- TEST_F(ReflectionTest, TestFlagSaverVsUpdateViaReflection) { { absl::FlagSaver s; counter = 0; std::string error; EXPECT_TRUE( absl::FindCommandLineFlag("test_flag_01")->ParseFrom("false", &error)) << error; EXPECT_TRUE( absl::FindCommandLineFlag("test_flag_02")->ParseFrom("-4536", &error)) << error; EXPECT_TRUE( absl::FindCommandLineFlag("test_flag_03")->ParseFrom("111", &error)) << error; EXPECT_TRUE( absl::FindCommandLineFlag("test_flag_04")->ParseFrom("909", &error)) << error; EXPECT_TRUE( absl::FindCommandLineFlag("test_flag_05")->ParseFrom("-2004", &error)) << error; EXPECT_TRUE( absl::FindCommandLineFlag("test_flag_06")->ParseFrom("1000023", &error)) << error; EXPECT_TRUE( absl::FindCommandLineFlag("test_flag_07")->ParseFrom("69305", &error)) << error; EXPECT_TRUE(absl::FindCommandLineFlag("test_flag_08") ->ParseFrom("1000000001", &error)) << error; EXPECT_TRUE( absl::FindCommandLineFlag("test_flag_09")->ParseFrom("2.09021", &error)) << error; EXPECT_TRUE( absl::FindCommandLineFlag("test_flag_10")->ParseFrom("-33.1", &error)) << error; EXPECT_TRUE( absl::FindCommandLineFlag("test_flag_11")->ParseFrom("ADD_FOO", &error)) << error; EXPECT_TRUE(absl::FindCommandLineFlag("test_flag_12") ->ParseFrom("3h11m16s", &error)) << error; EXPECT_TRUE( absl::FindCommandLineFlag("test_flag_13")->ParseFrom("0", &error)) << error; EXPECT_TRUE( absl::FindCommandLineFlag("test_flag_14")->ParseFrom("10:1", &error)) << error; } EXPECT_EQ(absl::GetFlag(FLAGS_test_flag_01), true); EXPECT_EQ(absl::GetFlag(FLAGS_test_flag_02), 1234); EXPECT_EQ(absl::GetFlag(FLAGS_test_flag_03), -34); EXPECT_EQ(absl::GetFlag(FLAGS_test_flag_04), 189); EXPECT_EQ(absl::GetFlag(FLAGS_test_flag_05), 10765); EXPECT_EQ(absl::GetFlag(FLAGS_test_flag_06), 40000); EXPECT_EQ(absl::GetFlag(FLAGS_test_flag_07), -1234567); EXPECT_EQ(absl::GetFlag(FLAGS_test_flag_08), 9876543); EXPECT_NEAR(absl::GetFlag(FLAGS_test_flag_09), -9.876e-50, 1e-55); EXPECT_NEAR(absl::GetFlag(FLAGS_test_flag_10), 1.234e12f, 1e5f); EXPECT_EQ(absl::GetFlag(FLAGS_test_flag_11), ""); EXPECT_EQ(absl::GetFlag(FLAGS_test_flag_12), absl::Minutes(10)); EXPECT_EQ(absl::GetFlag(FLAGS_test_flag_13), 200); EXPECT_EQ(absl::GetFlag(FLAGS_test_flag_14), CustomUDT{}); EXPECT_EQ(counter, 2); } // -------------------------------------------------------------------- TEST_F(ReflectionTest, TestMultipleFlagSaversInEnclosedScopes) { { absl::FlagSaver s; absl::SetFlag(&FLAGS_test_flag_08, 10); EXPECT_EQ(absl::GetFlag(FLAGS_test_flag_08), 10); { absl::FlagSaver s; absl::SetFlag(&FLAGS_test_flag_08, 20); EXPECT_EQ(absl::GetFlag(FLAGS_test_flag_08), 20); { absl::FlagSaver s; absl::SetFlag(&FLAGS_test_flag_08, -200); EXPECT_EQ(absl::GetFlag(FLAGS_test_flag_08), -200); } EXPECT_EQ(absl::GetFlag(FLAGS_test_flag_08), 20); } EXPECT_EQ(absl::GetFlag(FLAGS_test_flag_08), 10); } EXPECT_EQ(absl::GetFlag(FLAGS_test_flag_08), 9876543); } } // namespace