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72 lines
1.9 KiB
C++
72 lines
1.9 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 <string>
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#include <stdlib.h>
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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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#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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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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} // anonymous namespace
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