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https://github.com/c64scene-ar/llvm-6502.git
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61e0172197
Patch by Dan Liew! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181254 91177308-0d34-0410-b5e6-96231b3b80d8
122 lines
3.9 KiB
C++
122 lines
3.9 KiB
C++
//===- llvm/unittest/Support/CommandLineTest.cpp - CommandLine tests ------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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#include "llvm/Support/CommandLine.h"
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#include "llvm/Config/config.h"
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#include "gtest/gtest.h"
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#include <stdlib.h>
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#include <string>
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using namespace llvm;
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namespace {
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class TempEnvVar {
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public:
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TempEnvVar(const char *name, const char *value)
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: name(name) {
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const char *old_value = getenv(name);
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EXPECT_EQ(NULL, old_value) << old_value;
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#if HAVE_SETENV
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setenv(name, value, true);
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#else
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# define SKIP_ENVIRONMENT_TESTS
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#endif
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}
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~TempEnvVar() {
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#if HAVE_SETENV
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// Assume setenv and unsetenv come together.
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unsetenv(name);
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#endif
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}
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private:
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const char *const name;
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};
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cl::OptionCategory TestCategory("Test Options", "Description");
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cl::opt<int> TestOption("test-option", cl::desc("old description"));
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TEST(CommandLineTest, ModifyExisitingOption) {
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const char Description[] = "New description";
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const char ArgString[] = "new-test-option";
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const char ValueString[] = "Integer";
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StringMap<cl::Option*> Map;
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cl::getRegisteredOptions(Map);
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ASSERT_TRUE(Map.count("test-option") == 1) <<
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"Could not find option in map.";
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cl::Option *Retrieved = Map["test-option"];
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ASSERT_EQ(&TestOption, Retrieved) << "Retrieved wrong option.";
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ASSERT_EQ(&cl::GeneralCategory,Retrieved->Category) <<
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"Incorrect default option category.";
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Retrieved->setCategory(TestCategory);
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ASSERT_EQ(&TestCategory,Retrieved->Category) <<
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"Failed to modify option's option category.";
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Retrieved->setDescription(Description);
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ASSERT_STREQ(Retrieved->HelpStr, Description) <<
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"Changing option description failed.";
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Retrieved->setArgStr(ArgString);
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ASSERT_STREQ(ArgString, Retrieved->ArgStr) <<
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"Failed to modify option's Argument string.";
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Retrieved->setValueStr(ValueString);
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ASSERT_STREQ(Retrieved->ValueStr, ValueString) <<
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"Failed to modify option's Value string.";
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Retrieved->setHiddenFlag(cl::Hidden);
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ASSERT_EQ(cl::Hidden, TestOption.getOptionHiddenFlag()) <<
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"Failed to modify option's hidden flag.";
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}
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#ifndef SKIP_ENVIRONMENT_TESTS
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const char test_env_var[] = "LLVM_TEST_COMMAND_LINE_FLAGS";
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cl::opt<std::string> EnvironmentTestOption("env-test-opt");
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TEST(CommandLineTest, ParseEnvironment) {
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TempEnvVar TEV(test_env_var, "-env-test-opt=hello");
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EXPECT_EQ("", EnvironmentTestOption);
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cl::ParseEnvironmentOptions("CommandLineTest", test_env_var);
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EXPECT_EQ("hello", EnvironmentTestOption);
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}
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// This test used to make valgrind complain
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// ("Conditional jump or move depends on uninitialised value(s)")
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//
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// Warning: Do not run any tests after this one that try to gain access to
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// registered command line options because this will likely result in a
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// SEGFAULT. This can occur because the cl::opt in the test below is declared
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// on the stack which will be destroyed after the test completes but the
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// command line system will still hold a pointer to a deallocated cl::Option.
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TEST(CommandLineTest, ParseEnvironmentToLocalVar) {
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// Put cl::opt on stack to check for proper initialization of fields.
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cl::opt<std::string> EnvironmentTestOptionLocal("env-test-opt-local");
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TempEnvVar TEV(test_env_var, "-env-test-opt-local=hello-local");
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EXPECT_EQ("", EnvironmentTestOptionLocal);
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cl::ParseEnvironmentOptions("CommandLineTest", test_env_var);
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EXPECT_EQ("hello-local", EnvironmentTestOptionLocal);
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}
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#endif // SKIP_ENVIRONMENT_TESTS
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TEST(CommandLineTest, UseOptionCategory) {
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cl::opt<int> TestOption2("test-option", cl::cat(TestCategory));
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ASSERT_EQ(&TestCategory,TestOption2.Category) << "Failed to assign Option "
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"Category.";
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}
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} // anonymous namespace
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