| //===- llvm/unittest/Support/CommandLineTest.cpp - CommandLine tests ------===// |
| // |
| // The LLVM Compiler Infrastructure |
| // |
| // This file is distributed under the University of Illinois Open Source |
| // License. See LICENSE.TXT for details. |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #include "llvm/Support/CommandLine.h" |
| #include "llvm/Config/config.h" |
| #include "gtest/gtest.h" |
| #include <stdlib.h> |
| #include <string> |
| |
| using namespace llvm; |
| |
| namespace { |
| |
| class TempEnvVar { |
| public: |
| TempEnvVar(const char *name, const char *value) |
| : name(name) { |
| const char *old_value = getenv(name); |
| EXPECT_EQ(NULL, old_value) << old_value; |
| #if HAVE_SETENV |
| setenv(name, value, true); |
| #else |
| # define SKIP_ENVIRONMENT_TESTS |
| #endif |
| } |
| |
| ~TempEnvVar() { |
| #if HAVE_SETENV |
| // Assume setenv and unsetenv come together. |
| unsetenv(name); |
| #endif |
| } |
| |
| private: |
| const char *const name; |
| }; |
| |
| cl::OptionCategory TestCategory("Test Options", "Description"); |
| cl::opt<int> TestOption("test-option", cl::desc("old description")); |
| TEST(CommandLineTest, ModifyExisitingOption) { |
| const char Description[] = "New description"; |
| const char ArgString[] = "new-test-option"; |
| const char ValueString[] = "Integer"; |
| |
| StringMap<cl::Option*> Map; |
| cl::getRegisteredOptions(Map); |
| |
| ASSERT_TRUE(Map.count("test-option") == 1) << |
| "Could not find option in map."; |
| |
| cl::Option *Retrieved = Map["test-option"]; |
| ASSERT_EQ(&TestOption, Retrieved) << "Retrieved wrong option."; |
| |
| ASSERT_EQ(&cl::GeneralCategory,Retrieved->Category) << |
| "Incorrect default option category."; |
| |
| Retrieved->setCategory(TestCategory); |
| ASSERT_EQ(&TestCategory,Retrieved->Category) << |
| "Failed to modify option's option category."; |
| |
| Retrieved->setDescription(Description); |
| ASSERT_STREQ(Retrieved->HelpStr, Description) << |
| "Changing option description failed."; |
| |
| Retrieved->setArgStr(ArgString); |
| ASSERT_STREQ(ArgString, Retrieved->ArgStr) << |
| "Failed to modify option's Argument string."; |
| |
| Retrieved->setValueStr(ValueString); |
| ASSERT_STREQ(Retrieved->ValueStr, ValueString) << |
| "Failed to modify option's Value string."; |
| |
| Retrieved->setHiddenFlag(cl::Hidden); |
| ASSERT_EQ(cl::Hidden, TestOption.getOptionHiddenFlag()) << |
| "Failed to modify option's hidden flag."; |
| } |
| #ifndef SKIP_ENVIRONMENT_TESTS |
| |
| const char test_env_var[] = "LLVM_TEST_COMMAND_LINE_FLAGS"; |
| |
| cl::opt<std::string> EnvironmentTestOption("env-test-opt"); |
| TEST(CommandLineTest, ParseEnvironment) { |
| TempEnvVar TEV(test_env_var, "-env-test-opt=hello"); |
| EXPECT_EQ("", EnvironmentTestOption); |
| cl::ParseEnvironmentOptions("CommandLineTest", test_env_var); |
| EXPECT_EQ("hello", EnvironmentTestOption); |
| } |
| |
| // This test used to make valgrind complain |
| // ("Conditional jump or move depends on uninitialised value(s)") |
| // |
| // Warning: Do not run any tests after this one that try to gain access to |
| // registered command line options because this will likely result in a |
| // SEGFAULT. This can occur because the cl::opt in the test below is declared |
| // on the stack which will be destroyed after the test completes but the |
| // command line system will still hold a pointer to a deallocated cl::Option. |
| TEST(CommandLineTest, ParseEnvironmentToLocalVar) { |
| // Put cl::opt on stack to check for proper initialization of fields. |
| cl::opt<std::string> EnvironmentTestOptionLocal("env-test-opt-local"); |
| TempEnvVar TEV(test_env_var, "-env-test-opt-local=hello-local"); |
| EXPECT_EQ("", EnvironmentTestOptionLocal); |
| cl::ParseEnvironmentOptions("CommandLineTest", test_env_var); |
| EXPECT_EQ("hello-local", EnvironmentTestOptionLocal); |
| } |
| |
| #endif // SKIP_ENVIRONMENT_TESTS |
| |
| TEST(CommandLineTest, UseOptionCategory) { |
| cl::opt<int> TestOption2("test-option", cl::cat(TestCategory)); |
| |
| ASSERT_EQ(&TestCategory,TestOption2.Category) << "Failed to assign Option " |
| "Category."; |
| } |
| |
| } // anonymous namespace |