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The plan is to use it for clang and lld. Major behavior changes: - We can now parse UTF-16 files that have a byte order mark. - PR16209: Don't drop backslashes on the floor if they don't escape anything. The actual parsing loop was based on code from Clang's driver.cpp, although it's been rewritten to track its state with control flow rather than state variables. Reviewers: hans Differential Revision: http://llvm-reviews.chandlerc.com/D1170 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186587 91177308-0d34-0410-b5e6-96231b3b80d8
146 lines
4.8 KiB
C++
146 lines
4.8 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/ADT/STLExtras.h"
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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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class StrDupSaver : public cl::StringSaver {
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const char *SaveString(const char *Str) LLVM_OVERRIDE {
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return strdup(Str);
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}
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};
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TEST(CommandLineTest, TokenizeGNUCommandLine) {
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const char *Input = "foo\\ bar \"foo bar\" \'foo bar\' 'foo\\\\bar' "
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"foo\"bar\"baz C:\\src\\foo.cpp \"C:\\src\\foo.cpp\"";
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const char *const Output[] = { "foo bar", "foo bar", "foo bar", "foo\\bar",
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"foobarbaz", "C:\\src\\foo.cpp",
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"C:\\src\\foo.cpp" };
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SmallVector<const char *, 0> Actual;
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StrDupSaver Saver;
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cl::TokenizeGNUCommandLine(Input, Saver, Actual);
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EXPECT_EQ(array_lengthof(Output), Actual.size());
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for (unsigned I = 0, E = Actual.size(); I != E; ++I) {
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if (I < array_lengthof(Output))
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EXPECT_STREQ(Output[I], Actual[I]);
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free(const_cast<char *>(Actual[I]));
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}
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}
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} // anonymous namespace
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