| // |
| // 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 <memory> |
| #include <string> |
| |
| #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<absl::FlagSaver>(); |
| } |
| void TearDown() override { flag_saver_.reset(); } |
| |
| private: |
| std::unique_ptr<absl::FlagSaver> 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<absl::string_view> 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<absl::string_view> 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<absl::string_view> 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 |
