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-rw-r--r--absl/flags/internal/commandlineflag_test.cc196
1 files changed, 196 insertions, 0 deletions
diff --git a/absl/flags/internal/commandlineflag_test.cc b/absl/flags/internal/commandlineflag_test.cc
new file mode 100644
index 00000000..f0d57adb
--- /dev/null
+++ b/absl/flags/internal/commandlineflag_test.cc
@@ -0,0 +1,196 @@
+//
+// 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/internal/commandlineflag.h"
+
+#include "gtest/gtest.h"
+#include "absl/flags/flag.h"
+#include "absl/flags/internal/registry.h"
+#include "absl/memory/memory.h"
+#include "absl/strings/match.h"
+#include "absl/strings/str_cat.h"
+
+ABSL_FLAG(int, int_flag, 201, "int_flag help");
+ABSL_FLAG(std::string, string_flag, "dflt",
+ absl::StrCat("string_flag", " help"));
+ABSL_RETIRED_FLAG(bool, bool_retired_flag, false, "bool_retired_flag help");
+
+namespace {
+
+namespace flags = absl::flags_internal;
+
+class CommandLineFlagTest : public testing::Test {
+ protected:
+ void SetUp() override { flag_saver_ = absl::make_unique<flags::FlagSaver>(); }
+ void TearDown() override { flag_saver_.reset(); }
+
+ private:
+ std::unique_ptr<flags::FlagSaver> flag_saver_;
+};
+
+TEST_F(CommandLineFlagTest, TestAttributesAccessMethods) {
+ auto* flag_01 = flags::FindCommandLineFlag("int_flag");
+
+ ASSERT_TRUE(flag_01);
+ EXPECT_EQ(flag_01->Name(), "int_flag");
+ EXPECT_EQ(flag_01->Help(), "int_flag help");
+ EXPECT_EQ(flag_01->Typename(), "");
+ EXPECT_TRUE(!flag_01->IsRetired());
+ EXPECT_TRUE(flag_01->IsOfType<int>());
+ EXPECT_TRUE(absl::EndsWith(
+ flag_01->Filename(),
+ "absl/flags/internal/commandlineflag_test.cc"));
+
+ auto* flag_02 = flags::FindCommandLineFlag("string_flag");
+
+ ASSERT_TRUE(flag_02);
+ EXPECT_EQ(flag_02->Name(), "string_flag");
+ EXPECT_EQ(flag_02->Help(), "string_flag help");
+ EXPECT_EQ(flag_02->Typename(), "");
+ EXPECT_TRUE(!flag_02->IsRetired());
+ EXPECT_TRUE(flag_02->IsOfType<std::string>());
+ EXPECT_TRUE(absl::EndsWith(
+ flag_02->Filename(),
+ "absl/flags/internal/commandlineflag_test.cc"));
+
+ auto* flag_03 = flags::FindRetiredFlag("bool_retired_flag");
+
+ ASSERT_TRUE(flag_03);
+ EXPECT_EQ(flag_03->Name(), "bool_retired_flag");
+ EXPECT_EQ(flag_03->Help(), "");
+ EXPECT_EQ(flag_03->Typename(), "");
+ EXPECT_TRUE(flag_03->IsRetired());
+ EXPECT_TRUE(flag_03->IsOfType<bool>());
+ EXPECT_EQ(flag_03->Filename(), "RETIRED");
+}
+
+// --------------------------------------------------------------------
+
+TEST_F(CommandLineFlagTest, TestValueAccessMethods) {
+ absl::SetFlag(&FLAGS_int_flag, 301);
+ auto* flag_01 = flags::FindCommandLineFlag("int_flag");
+
+ ASSERT_TRUE(flag_01);
+ EXPECT_EQ(flag_01->CurrentValue(), "301");
+ EXPECT_EQ(flag_01->DefaultValue(), "201");
+
+ absl::SetFlag(&FLAGS_string_flag, "new_str_value");
+ auto* flag_02 = flags::FindCommandLineFlag("string_flag");
+
+ ASSERT_TRUE(flag_02);
+ EXPECT_EQ(flag_02->CurrentValue(), "new_str_value");
+ EXPECT_EQ(flag_02->DefaultValue(), "dflt");
+}
+
+// --------------------------------------------------------------------
+
+TEST_F(CommandLineFlagTest, TestSetFromStringCurrentValue) {
+ std::string err;
+
+ auto* flag_01 = flags::FindCommandLineFlag("int_flag");
+ EXPECT_FALSE(flag_01->IsSpecifiedOnCommandLine());
+
+ EXPECT_TRUE(flag_01->SetFromString("11", flags::SET_FLAGS_VALUE,
+ flags::kProgrammaticChange, &err));
+ EXPECT_EQ(absl::GetFlag(FLAGS_int_flag), 11);
+ EXPECT_FALSE(flag_01->IsSpecifiedOnCommandLine());
+
+ EXPECT_TRUE(flag_01->SetFromString("-123", flags::SET_FLAGS_VALUE,
+ flags::kProgrammaticChange, &err));
+ EXPECT_EQ(absl::GetFlag(FLAGS_int_flag), -123);
+ EXPECT_FALSE(flag_01->IsSpecifiedOnCommandLine());
+
+ EXPECT_TRUE(!flag_01->SetFromString("xyz", flags::SET_FLAGS_VALUE,
+ flags::kProgrammaticChange, &err));
+ EXPECT_EQ(absl::GetFlag(FLAGS_int_flag), -123);
+ EXPECT_EQ(err, "Illegal value 'xyz' specified for flag 'int_flag'");
+ EXPECT_FALSE(flag_01->IsSpecifiedOnCommandLine());
+
+ EXPECT_TRUE(!flag_01->SetFromString("A1", flags::SET_FLAGS_VALUE,
+ flags::kProgrammaticChange, &err));
+ EXPECT_EQ(absl::GetFlag(FLAGS_int_flag), -123);
+ EXPECT_EQ(err, "Illegal value 'A1' specified for flag 'int_flag'");
+ EXPECT_FALSE(flag_01->IsSpecifiedOnCommandLine());
+
+ EXPECT_TRUE(flag_01->SetFromString("0x10", flags::SET_FLAGS_VALUE,
+ flags::kProgrammaticChange, &err));
+ EXPECT_EQ(absl::GetFlag(FLAGS_int_flag), 16);
+ EXPECT_FALSE(flag_01->IsSpecifiedOnCommandLine());
+
+ EXPECT_TRUE(flag_01->SetFromString("011", flags::SET_FLAGS_VALUE,
+ flags::kCommandLine, &err));
+ EXPECT_EQ(absl::GetFlag(FLAGS_int_flag), 11);
+ EXPECT_TRUE(flag_01->IsSpecifiedOnCommandLine());
+
+ EXPECT_TRUE(!flag_01->SetFromString("", flags::SET_FLAGS_VALUE,
+ flags::kProgrammaticChange, &err));
+ EXPECT_EQ(err, "Illegal value '' specified for flag 'int_flag'");
+
+ auto* flag_02 = flags::FindCommandLineFlag("string_flag");
+ EXPECT_TRUE(flag_02->SetFromString("xyz", flags::SET_FLAGS_VALUE,
+ flags::kProgrammaticChange, &err));
+ EXPECT_EQ(absl::GetFlag(FLAGS_string_flag), "xyz");
+
+ EXPECT_TRUE(flag_02->SetFromString("", flags::SET_FLAGS_VALUE,
+ flags::kProgrammaticChange, &err));
+ EXPECT_EQ(absl::GetFlag(FLAGS_string_flag), "");
+}
+
+// --------------------------------------------------------------------
+
+TEST_F(CommandLineFlagTest, TestSetFromStringDefaultValue) {
+ std::string err;
+
+ auto* flag_01 = flags::FindCommandLineFlag("int_flag");
+
+ EXPECT_TRUE(flag_01->SetFromString("111", flags::SET_FLAGS_DEFAULT,
+ flags::kProgrammaticChange, &err));
+ EXPECT_EQ(flag_01->DefaultValue(), "111");
+
+ auto* flag_02 = flags::FindCommandLineFlag("string_flag");
+
+ EXPECT_TRUE(flag_02->SetFromString("abc", flags::SET_FLAGS_DEFAULT,
+ flags::kProgrammaticChange, &err));
+ EXPECT_EQ(flag_02->DefaultValue(), "abc");
+}
+
+// --------------------------------------------------------------------
+
+TEST_F(CommandLineFlagTest, TestSetFromStringIfDefault) {
+ std::string err;
+
+ auto* flag_01 = flags::FindCommandLineFlag("int_flag");
+
+ EXPECT_TRUE(flag_01->SetFromString("22", flags::SET_FLAG_IF_DEFAULT,
+ flags::kProgrammaticChange, &err))
+ << err;
+ EXPECT_EQ(absl::GetFlag(FLAGS_int_flag), 22);
+
+ EXPECT_TRUE(flag_01->SetFromString("33", flags::SET_FLAG_IF_DEFAULT,
+ flags::kProgrammaticChange, &err));
+ EXPECT_EQ(absl::GetFlag(FLAGS_int_flag), 22);
+ // EXPECT_EQ(err, "ERROR: int_flag is already set to 22");
+
+ // Reset back to default value
+ EXPECT_TRUE(flag_01->SetFromString("201", flags::SET_FLAGS_VALUE,
+ flags::kProgrammaticChange, &err));
+
+ EXPECT_TRUE(flag_01->SetFromString("33", flags::SET_FLAG_IF_DEFAULT,
+ flags::kProgrammaticChange, &err));
+ EXPECT_EQ(absl::GetFlag(FLAGS_int_flag), 201);
+ // EXPECT_EQ(err, "ERROR: int_flag is already set to 201");
+}
+
+} // namespace
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