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authorGravatar Abseil Team <absl-team@google.com>2019-05-07 12:56:42 -0700
committerGravatar Eric Fiselier <eric@efcs.ca>2019-05-07 16:32:35 -0400
commitaa468ad75539619b47979911297efbb629c52e44 (patch)
tree660bdd268ea4bb18d565b253cce6b6a6bbca0590 /absl/flags/flag_test.cc
parentcd86d0d20ab167c33b23d3875db68d1d4bad3a3b (diff)
Export of internal Abseil changes.
-- 78293ba4eb4981991ae7e6edd25eb9245fcd7515 by Andy Soffer <asoffer@google.com>: internal changes PiperOrigin-RevId: 247073879 -- 7bd97e3aad0c3012b89a39392a6ad3f254e9f3c3 by Derek Mauro <dmauro@google.com>: Release commandline flags PiperOrigin-RevId: 247065920 -- 2a991849fd7b140a43b073076d194b61533fd199 by Tom Manshreck <shreck@google.com>: Add documentation for built-in usage flags PiperOrigin-RevId: 247058863 -- 14157b0de45841706bbd631284191fd94c313db9 by Derek Mauro <dmauro@google.com>: Internal change PiperOrigin-RevId: 247058292 -- ed67e0a80468596e30540b367727a250fa415b68 by Abseil Team <absl-team@google.com>: Internal Change. PiperOrigin-RevId: 246828655 -- e1bc8c2aa3f90b3d56c55c5b7244e718c919265d by Abseil Team <absl-team@google.com>: Internal change PiperOrigin-RevId: 246822325 -- 907a68f287199f749cb9bdb48571b50bc34731e1 by Eric Fiselier <ericwf@google.com>: Accept vector<bool>::reference in StrCat and friends. Converting vector<bool>::reference to alphanum requires two user defined conversions, which isn't allowed. In order to accept this, we need a special constructor that is only enabled for the bool proxy types. PiperOrigin-RevId: 246626732 -- fe4295fa95cc65dee8c881ba12dd8f516e68c40d by Abseil Team <absl-team@google.com>: Clarify the proper way to define AbslHashValue, and fix confusing indentation. PiperOrigin-RevId: 246406528 -- d7174681a72d4a25c8fd2b4d9f515a0763eff87c by Gennadiy Rozental <rogeeff@google.com>: Internal change PiperOrigin-RevId: 246358214 -- a7fdc19683cf1a5885e9e1af52fcdb2db1eda53b by Abseil Team <absl-team@google.com>: Fix sample template instantiation. PiperOrigin-RevId: 246354617 -- 29a23c6835f872948d09b24d890385bf195bc995 by Abseil Team <absl-team@google.com>: Fix incorrectly copy-pasted static_assert in absl::optional::value_or The static_assert for a move-constructible type previously said the type must be copy-constructible. PiperOrigin-RevId: 246313827 -- 41884d5872d4ea2c67875b00144b8c8a5859a295 by Greg Falcon <gfalcon@google.com>: Import of CCTZ from GitHub. PiperOrigin-RevId: 245418790 -- 7f90a7f94cdd5e21232c749efe952a750b5c43a2 by Abseil Team <absl-team@google.com>: Internal change PiperOrigin-RevId: 245412658 -- 730a329cf047d54b46971fce1781edd857208c2a by Greg Falcon <gfalcon@google.com>: internal change PiperOrigin-RevId: 245293234 -- cf0216be6338200cbb18167d3f3b2e98e372be77 by Greg Falcon <gfalcon@google.com>: Internal change PiperOrigin-RevId: 245288164 GitOrigin-RevId: 78293ba4eb4981991ae7e6edd25eb9245fcd7515 Change-Id: I5ea9a852c36c722bae2d6be65fb7f72473d94ab6
Diffstat (limited to 'absl/flags/flag_test.cc')
-rw-r--r--absl/flags/flag_test.cc482
1 files changed, 482 insertions, 0 deletions
diff --git a/absl/flags/flag_test.cc b/absl/flags/flag_test.cc
new file mode 100644
index 00000000..1bcd7e96
--- /dev/null
+++ b/absl/flags/flag_test.cc
@@ -0,0 +1,482 @@
+//
+// 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/flag.h"
+
+#include "gtest/gtest.h"
+#include "absl/strings/match.h"
+#include "absl/strings/numbers.h"
+#include "absl/strings/str_cat.h"
+#include "absl/strings/str_split.h"
+
+ABSL_DECLARE_FLAG(int64_t, mistyped_int_flag);
+ABSL_DECLARE_FLAG(std::vector<std::string>, mistyped_string_flag);
+
+namespace {
+
+namespace flags = absl::flags_internal;
+
+std::string TestHelpMsg() { return "help"; }
+template <typename T>
+void* TestMakeDflt() {
+ return new T{};
+}
+void TestCallback() {}
+
+template <typename T>
+bool TestConstructionFor() {
+ constexpr flags::Flag<T> f1("f1", &TestHelpMsg, "file",
+ &absl::flags_internal::FlagMarshallingOps<T>,
+ &TestMakeDflt<T>);
+ EXPECT_EQ(f1.Name(), "f1");
+ EXPECT_EQ(f1.Help(), "help");
+ EXPECT_EQ(f1.Filename(), "file");
+
+ ABSL_CONST_INIT static flags::Flag<T> f2(
+ "f2", &TestHelpMsg, "file", &absl::flags_internal::FlagMarshallingOps<T>,
+ &TestMakeDflt<T>);
+ flags::FlagRegistrar<T, false>(&f2).OnUpdate(TestCallback);
+
+ EXPECT_EQ(f2.Name(), "f2");
+ EXPECT_EQ(f2.Help(), "help");
+ EXPECT_EQ(f2.Filename(), "file");
+
+ return true;
+}
+
+struct UDT {
+ UDT() = default;
+ UDT(const UDT&) = default;
+};
+bool AbslParseFlag(absl::string_view, UDT*, std::string*) { return true; }
+std::string AbslUnparseFlag(const UDT&) { return ""; }
+
+TEST(FlagTest, TestConstruction) {
+ TestConstructionFor<bool>();
+ TestConstructionFor<int16_t>();
+ TestConstructionFor<uint16_t>();
+ TestConstructionFor<int32_t>();
+ TestConstructionFor<uint32_t>();
+ TestConstructionFor<int64_t>();
+ TestConstructionFor<uint64_t>();
+ TestConstructionFor<double>();
+ TestConstructionFor<float>();
+ TestConstructionFor<std::string>();
+
+ TestConstructionFor<UDT>();
+}
+
+// --------------------------------------------------------------------
+
+} // namespace
+
+ABSL_DECLARE_FLAG(bool, test_flag_01);
+ABSL_DECLARE_FLAG(int, test_flag_02);
+ABSL_DECLARE_FLAG(int16_t, test_flag_03);
+ABSL_DECLARE_FLAG(uint16_t, test_flag_04);
+ABSL_DECLARE_FLAG(int32_t, test_flag_05);
+ABSL_DECLARE_FLAG(uint32_t, test_flag_06);
+ABSL_DECLARE_FLAG(int64_t, test_flag_07);
+ABSL_DECLARE_FLAG(uint64_t, test_flag_08);
+ABSL_DECLARE_FLAG(double, test_flag_09);
+ABSL_DECLARE_FLAG(float, test_flag_10);
+ABSL_DECLARE_FLAG(std::string, test_flag_11);
+
+namespace {
+
+#if !ABSL_FLAGS_STRIP_NAMES
+
+TEST(FlagTest, TestFlagDeclaration) {
+ // test that we can access flag objects.
+ EXPECT_EQ(FLAGS_test_flag_01.Name(), "test_flag_01");
+ EXPECT_EQ(FLAGS_test_flag_02.Name(), "test_flag_02");
+ EXPECT_EQ(FLAGS_test_flag_03.Name(), "test_flag_03");
+ EXPECT_EQ(FLAGS_test_flag_04.Name(), "test_flag_04");
+ EXPECT_EQ(FLAGS_test_flag_05.Name(), "test_flag_05");
+ EXPECT_EQ(FLAGS_test_flag_06.Name(), "test_flag_06");
+ EXPECT_EQ(FLAGS_test_flag_07.Name(), "test_flag_07");
+ EXPECT_EQ(FLAGS_test_flag_08.Name(), "test_flag_08");
+ EXPECT_EQ(FLAGS_test_flag_09.Name(), "test_flag_09");
+ EXPECT_EQ(FLAGS_test_flag_10.Name(), "test_flag_10");
+ EXPECT_EQ(FLAGS_test_flag_11.Name(), "test_flag_11");
+}
+#endif // !ABSL_FLAGS_STRIP_NAMES
+
+// --------------------------------------------------------------------
+
+} // namespace
+
+ABSL_FLAG(bool, test_flag_01, true, "test flag 01");
+ABSL_FLAG(int, test_flag_02, 1234, "test flag 02");
+ABSL_FLAG(int16_t, test_flag_03, -34, "test flag 03");
+ABSL_FLAG(uint16_t, test_flag_04, 189, "test flag 04");
+ABSL_FLAG(int32_t, test_flag_05, 10765, "test flag 05");
+ABSL_FLAG(uint32_t, test_flag_06, 40000, "test flag 06");
+ABSL_FLAG(int64_t, test_flag_07, -1234567, "test flag 07");
+ABSL_FLAG(uint64_t, test_flag_08, 9876543, "test flag 08");
+ABSL_FLAG(double, test_flag_09, -9.876e-50, "test flag 09");
+ABSL_FLAG(float, test_flag_10, 1.234e12f, "test flag 10");
+ABSL_FLAG(std::string, test_flag_11, "", "test flag 11");
+
+namespace {
+
+#if !ABSL_FLAGS_STRIP_NAMES
+TEST(FlagTest, TestFlagDefinition) {
+ absl::string_view expected_file_name = "absl/flags/flag_test.cc";
+
+ EXPECT_EQ(FLAGS_test_flag_01.Name(), "test_flag_01");
+ EXPECT_EQ(FLAGS_test_flag_01.Help(), "test flag 01");
+ EXPECT_TRUE(
+ absl::EndsWith(FLAGS_test_flag_01.Filename(), expected_file_name));
+
+ EXPECT_EQ(FLAGS_test_flag_02.Name(), "test_flag_02");
+ EXPECT_EQ(FLAGS_test_flag_02.Help(), "test flag 02");
+ EXPECT_TRUE(
+ absl::EndsWith(FLAGS_test_flag_02.Filename(), expected_file_name));
+
+ EXPECT_EQ(FLAGS_test_flag_03.Name(), "test_flag_03");
+ EXPECT_EQ(FLAGS_test_flag_03.Help(), "test flag 03");
+ EXPECT_TRUE(
+ absl::EndsWith(FLAGS_test_flag_03.Filename(), expected_file_name));
+
+ EXPECT_EQ(FLAGS_test_flag_04.Name(), "test_flag_04");
+ EXPECT_EQ(FLAGS_test_flag_04.Help(), "test flag 04");
+ EXPECT_TRUE(
+ absl::EndsWith(FLAGS_test_flag_04.Filename(), expected_file_name));
+
+ EXPECT_EQ(FLAGS_test_flag_05.Name(), "test_flag_05");
+ EXPECT_EQ(FLAGS_test_flag_05.Help(), "test flag 05");
+ EXPECT_TRUE(
+ absl::EndsWith(FLAGS_test_flag_05.Filename(), expected_file_name));
+
+ EXPECT_EQ(FLAGS_test_flag_06.Name(), "test_flag_06");
+ EXPECT_EQ(FLAGS_test_flag_06.Help(), "test flag 06");
+ EXPECT_TRUE(
+ absl::EndsWith(FLAGS_test_flag_06.Filename(), expected_file_name));
+
+ EXPECT_EQ(FLAGS_test_flag_07.Name(), "test_flag_07");
+ EXPECT_EQ(FLAGS_test_flag_07.Help(), "test flag 07");
+ EXPECT_TRUE(
+ absl::EndsWith(FLAGS_test_flag_07.Filename(), expected_file_name));
+
+ EXPECT_EQ(FLAGS_test_flag_08.Name(), "test_flag_08");
+ EXPECT_EQ(FLAGS_test_flag_08.Help(), "test flag 08");
+ EXPECT_TRUE(
+ absl::EndsWith(FLAGS_test_flag_08.Filename(), expected_file_name));
+
+ EXPECT_EQ(FLAGS_test_flag_09.Name(), "test_flag_09");
+ EXPECT_EQ(FLAGS_test_flag_09.Help(), "test flag 09");
+ EXPECT_TRUE(
+ absl::EndsWith(FLAGS_test_flag_09.Filename(), expected_file_name));
+
+ EXPECT_EQ(FLAGS_test_flag_10.Name(), "test_flag_10");
+ EXPECT_EQ(FLAGS_test_flag_10.Help(), "test flag 10");
+ EXPECT_TRUE(
+ absl::EndsWith(FLAGS_test_flag_10.Filename(), expected_file_name));
+
+ EXPECT_EQ(FLAGS_test_flag_11.Name(), "test_flag_11");
+ EXPECT_EQ(FLAGS_test_flag_11.Help(), "test flag 11");
+ EXPECT_TRUE(
+ absl::EndsWith(FLAGS_test_flag_11.Filename(), expected_file_name));
+}
+#endif // !ABSL_FLAGS_STRIP_NAMES
+
+// --------------------------------------------------------------------
+
+TEST(FlagTest, TestDefault) {
+ 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), "");
+}
+
+// --------------------------------------------------------------------
+
+TEST(FlagTest, TestGetSet) {
+ absl::SetFlag(&FLAGS_test_flag_01, false);
+ EXPECT_EQ(absl::GetFlag(FLAGS_test_flag_01), false);
+
+ absl::SetFlag(&FLAGS_test_flag_02, 321);
+ EXPECT_EQ(absl::GetFlag(FLAGS_test_flag_02), 321);
+
+ absl::SetFlag(&FLAGS_test_flag_03, 67);
+ EXPECT_EQ(absl::GetFlag(FLAGS_test_flag_03), 67);
+
+ absl::SetFlag(&FLAGS_test_flag_04, 1);
+ EXPECT_EQ(absl::GetFlag(FLAGS_test_flag_04), 1);
+
+ absl::SetFlag(&FLAGS_test_flag_05, -908);
+ EXPECT_EQ(absl::GetFlag(FLAGS_test_flag_05), -908);
+
+ absl::SetFlag(&FLAGS_test_flag_06, 4001);
+ EXPECT_EQ(absl::GetFlag(FLAGS_test_flag_06), 4001);
+
+ absl::SetFlag(&FLAGS_test_flag_07, -23456);
+ EXPECT_EQ(absl::GetFlag(FLAGS_test_flag_07), -23456);
+
+ absl::SetFlag(&FLAGS_test_flag_08, 975310);
+ EXPECT_EQ(absl::GetFlag(FLAGS_test_flag_08), 975310);
+
+ absl::SetFlag(&FLAGS_test_flag_09, 1.00001);
+ EXPECT_NEAR(absl::GetFlag(FLAGS_test_flag_09), 1.00001, 1e-10);
+
+ absl::SetFlag(&FLAGS_test_flag_10, -3.54f);
+ EXPECT_NEAR(absl::GetFlag(FLAGS_test_flag_10), -3.54f, 1e-6f);
+
+ absl::SetFlag(&FLAGS_test_flag_11, "asdf");
+ EXPECT_EQ(absl::GetFlag(FLAGS_test_flag_11), "asdf");
+}
+
+// --------------------------------------------------------------------
+
+int GetDflt1() { return 1; }
+
+} // namespace
+
+ABSL_FLAG(int, test_flag_12, GetDflt1(), "test flag 12");
+ABSL_FLAG(std::string, test_flag_13, absl::StrCat("AAA", "BBB"),
+ "test flag 13");
+
+namespace {
+
+TEST(FlagTest, TestNonConstexprDefault) {
+ EXPECT_EQ(absl::GetFlag(FLAGS_test_flag_12), 1);
+ EXPECT_EQ(absl::GetFlag(FLAGS_test_flag_13), "AAABBB");
+}
+
+// --------------------------------------------------------------------
+
+} // namespace
+
+ABSL_FLAG(bool, test_flag_14, true, absl::StrCat("test ", "flag ", "14"));
+
+namespace {
+
+#if !ABSL_FLAGS_STRIP_HELP
+TEST(FlagTest, TestNonConstexprHelp) {
+ EXPECT_EQ(FLAGS_test_flag_14.Help(), "test flag 14");
+}
+#endif //! ABSL_FLAGS_STRIP_HELP
+
+// --------------------------------------------------------------------
+
+int cb_test_value = -1;
+void TestFlagCB();
+
+} // namespace
+
+ABSL_FLAG(int, test_flag_with_cb, 100, "").OnUpdate(TestFlagCB);
+
+ABSL_FLAG(int, test_flag_with_lambda_cb, 200, "").OnUpdate([]() {
+ cb_test_value = absl::GetFlag(FLAGS_test_flag_with_lambda_cb) +
+ absl::GetFlag(FLAGS_test_flag_with_cb);
+});
+
+namespace {
+
+void TestFlagCB() { cb_test_value = absl::GetFlag(FLAGS_test_flag_with_cb); }
+
+// Tests side-effects of callback invocation.
+TEST(FlagTest, CallbackInvocation) {
+ EXPECT_EQ(absl::GetFlag(FLAGS_test_flag_with_cb), 100);
+ EXPECT_EQ(absl::GetFlag(FLAGS_test_flag_with_lambda_cb), 200);
+ EXPECT_EQ(cb_test_value, 300);
+
+ absl::SetFlag(&FLAGS_test_flag_with_cb, 1);
+ EXPECT_EQ(cb_test_value, 1);
+
+ absl::SetFlag(&FLAGS_test_flag_with_lambda_cb, 3);
+ EXPECT_EQ(cb_test_value, 4);
+}
+
+// --------------------------------------------------------------------
+
+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(CustomUDT, test_flag_15, CustomUDT(), "test flag 15");
+
+namespace {
+
+TEST(FlagTest, TestCustomUDT) {
+ EXPECT_EQ(absl::GetFlag(FLAGS_test_flag_15), CustomUDT(1, 1));
+ absl::SetFlag(&FLAGS_test_flag_15, CustomUDT(2, 3));
+ EXPECT_EQ(absl::GetFlag(FLAGS_test_flag_15), CustomUDT(2, 3));
+}
+
+// MSVC produces link error on the type mismatch.
+// Linux does not have build errors and validations work as expected.
+#if 0 // !defined(_WIN32) && GTEST_HAS_DEATH_TEST
+
+TEST(Flagtest, TestTypeMismatchValidations) {
+ // For builtin types, GetFlag() only does validation in debug mode.
+ EXPECT_DEBUG_DEATH(
+ absl::GetFlag(FLAGS_mistyped_int_flag),
+ "Flag 'mistyped_int_flag' is defined as one type and declared "
+ "as another");
+ EXPECT_DEATH(absl::SetFlag(&FLAGS_mistyped_int_flag, 0),
+ "Flag 'mistyped_int_flag' is defined as one type and declared "
+ "as another");
+
+ EXPECT_DEATH(absl::GetFlag(FLAGS_mistyped_string_flag),
+ "Flag 'mistyped_string_flag' is defined as one type and "
+ "declared as another");
+ EXPECT_DEATH(
+ absl::SetFlag(&FLAGS_mistyped_string_flag, std::vector<std::string>{}),
+ "Flag 'mistyped_string_flag' is defined as one type and declared as "
+ "another");
+}
+
+#endif
+
+// --------------------------------------------------------------------
+
+// A contrived type that offers implicit and explicit conversion from specific
+// source types.
+struct ConversionTestVal {
+ ConversionTestVal() = default;
+ explicit ConversionTestVal(int a_in) : a(a_in) {}
+
+ enum class ViaImplicitConv { kTen = 10, kEleven };
+ // NOLINTNEXTLINE
+ ConversionTestVal(ViaImplicitConv from) : a(static_cast<int>(from)) {}
+
+ int a;
+};
+
+bool AbslParseFlag(absl::string_view in, ConversionTestVal* val_out,
+ std::string*) {
+ if (!absl::SimpleAtoi(in, &val_out->a)) {
+ return false;
+ }
+ return true;
+}
+std::string AbslUnparseFlag(const ConversionTestVal& val) {
+ return absl::StrCat(val.a);
+}
+
+} // namespace
+
+// Flag default values can be specified with a value that converts to the flag
+// value type implicitly.
+ABSL_FLAG(ConversionTestVal, test_flag_16,
+ ConversionTestVal::ViaImplicitConv::kTen, "test flag 16");
+
+namespace {
+
+TEST(FlagTest, CanSetViaImplicitConversion) {
+ EXPECT_EQ(absl::GetFlag(FLAGS_test_flag_16).a, 10);
+ absl::SetFlag(&FLAGS_test_flag_16,
+ ConversionTestVal::ViaImplicitConv::kEleven);
+ EXPECT_EQ(absl::GetFlag(FLAGS_test_flag_16).a, 11);
+}
+
+// --------------------------------------------------------------------
+
+struct NonDfltConstructible {
+ public:
+ // This constructor tests that we can initialize the flag with int value
+ NonDfltConstructible(int i) : value(i) {} // NOLINT
+
+ // This constructor tests that we can't initialize the flag with char value
+ // but can with explicitly constructed NonDfltConstructible.
+ explicit NonDfltConstructible(char c) : value(100 + static_cast<int>(c)) {}
+
+ int value;
+};
+
+bool AbslParseFlag(absl::string_view in, NonDfltConstructible* ndc_out,
+ std::string*) {
+ return absl::SimpleAtoi(in, &ndc_out->value);
+}
+std::string AbslUnparseFlag(const NonDfltConstructible& ndc) {
+ return absl::StrCat(ndc.value);
+}
+
+} // namespace
+
+ABSL_FLAG(NonDfltConstructible, ndc_flag1, NonDfltConstructible('1'),
+ "Flag with non default constructible type");
+ABSL_FLAG(NonDfltConstructible, ndc_flag2, 0,
+ "Flag with non default constructible type");
+
+namespace {
+
+TEST(FlagTest, TestNonDefaultConstructibleType) {
+ EXPECT_EQ(absl::GetFlag(FLAGS_ndc_flag1).value, '1' + 100);
+ EXPECT_EQ(absl::GetFlag(FLAGS_ndc_flag2).value, 0);
+
+ absl::SetFlag(&FLAGS_ndc_flag1, NonDfltConstructible('A'));
+ absl::SetFlag(&FLAGS_ndc_flag2, 25);
+
+ EXPECT_EQ(absl::GetFlag(FLAGS_ndc_flag1).value, 'A' + 100);
+ EXPECT_EQ(absl::GetFlag(FLAGS_ndc_flag2).value, 25);
+}
+
+// --------------------------------------------------------------------
+
+} // namespace
+
+ABSL_RETIRED_FLAG(bool, old_bool_flag, true, "old descr");
+ABSL_RETIRED_FLAG(int, old_int_flag, (int)std::sqrt(10), "old descr");
+ABSL_RETIRED_FLAG(std::string, old_str_flag, "", absl::StrCat("old ", "descr"));
+
+namespace {
+
+TEST(FlagTest, TestRetiredFlagRegistration) {
+ bool is_bool = false;
+ EXPECT_TRUE(flags::IsRetiredFlag("old_bool_flag", &is_bool));
+ EXPECT_TRUE(is_bool);
+ EXPECT_TRUE(flags::IsRetiredFlag("old_int_flag", &is_bool));
+ EXPECT_FALSE(is_bool);
+ EXPECT_TRUE(flags::IsRetiredFlag("old_str_flag", &is_bool));
+ EXPECT_FALSE(is_bool);
+ EXPECT_FALSE(flags::IsRetiredFlag("some_other_flag", &is_bool));
+}
+
+} // namespace