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llvm-project/llvm/unittests/Support/CommandLineTest.cpp

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//===- llvm/unittest/Support/CommandLineTest.cpp - CommandLine tests ------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#include "llvm/Support/CommandLine.h"
#include "llvm/ADT/STLExtras.h"
#include "llvm/ADT/SmallString.h"
#include "llvm/ADT/Triple.h"
#include "llvm/Config/config.h"
#include "llvm/Support/FileSystem.h"
#include "llvm/Support/InitLLVM.h"
#include "llvm/Support/MemoryBuffer.h"
#include "llvm/Support/Path.h"
#include "llvm/Support/Program.h"
#include "llvm/Support/StringSaver.h"
#include "gtest/gtest.h"
#include <fstream>
#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(nullptr, 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);
#else
(void)name; // Suppress -Wunused-private-field.
#endif
}
private:
const char *const name;
};
template <typename T, typename Base = cl::opt<T>>
class StackOption : public Base {
public:
template <class... Ts>
explicit StackOption(Ts &&... Ms) : Base(std::forward<Ts>(Ms)...) {}
~StackOption() override { this->removeArgument(); }
template <class DT> StackOption<T> &operator=(const DT &V) {
this->setValue(V);
return *this;
}
};
class StackSubCommand : public cl::SubCommand {
public:
StackSubCommand(StringRef Name,
StringRef Description = StringRef())
: SubCommand(Name, Description) {}
StackSubCommand() : SubCommand() {}
~StackSubCommand() { unregisterSubCommand(); }
};
cl::OptionCategory TestCategory("Test Options", "Description");
TEST(CommandLineTest, ModifyExisitingOption) {
StackOption<int> TestOption("test-option", cl::desc("old description"));
static const char Description[] = "New description";
static const char ArgString[] = "new-test-option";
static const char ValueString[] = "Integer";
StringMap<cl::Option *> &Map =
cl::getRegisteredOptions(*cl::TopLevelSubCommand);
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.data(), Description)
<< "Changing option description failed.";
Retrieved->setArgStr(ArgString);
ASSERT_STREQ(ArgString, Retrieved->ArgStr.data())
<< "Failed to modify option's Argument string.";
Retrieved->setValueStr(ValueString);
ASSERT_STREQ(Retrieved->ValueStr.data(), 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.
StackOption<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) {
StackOption<int> TestOption2("test-option", cl::cat(TestCategory));
ASSERT_EQ(&TestCategory,TestOption2.Category) << "Failed to assign Option "
"Category.";
}
typedef void ParserFunction(StringRef Source, StringSaver &Saver,
SmallVectorImpl<const char *> &NewArgv,
bool MarkEOLs);
void testCommandLineTokenizer(ParserFunction *parse, StringRef Input,
const char *const Output[], size_t OutputSize) {
SmallVector<const char *, 0> Actual;
BumpPtrAllocator A;
StringSaver Saver(A);
parse(Input, Saver, Actual, /*MarkEOLs=*/false);
EXPECT_EQ(OutputSize, Actual.size());
for (unsigned I = 0, E = Actual.size(); I != E; ++I) {
if (I < OutputSize) {
EXPECT_STREQ(Output[I], Actual[I]);
}
}
}
TEST(CommandLineTest, TokenizeGNUCommandLine) {
const char Input[] =
"foo\\ bar \"foo bar\" \'foo bar\' 'foo\\\\bar' -DFOO=bar\\(\\) "
"foo\"bar\"baz C:\\\\src\\\\foo.cpp \"C:\\src\\foo.cpp\"";
const char *const Output[] = {
"foo bar", "foo bar", "foo bar", "foo\\bar",
"-DFOO=bar()", "foobarbaz", "C:\\src\\foo.cpp", "C:srcfoo.cpp"};
testCommandLineTokenizer(cl::TokenizeGNUCommandLine, Input, Output,
array_lengthof(Output));
}
TEST(CommandLineTest, TokenizeWindowsCommandLine) {
const char Input[] = "a\\b c\\\\d e\\\\\"f g\" h\\\"i j\\\\\\\"k \"lmn\" o pqr "
"\"st \\\"u\" \\v";
const char *const Output[] = { "a\\b", "c\\\\d", "e\\f g", "h\"i", "j\\\"k",
"lmn", "o", "pqr", "st \"u", "\\v" };
testCommandLineTokenizer(cl::TokenizeWindowsCommandLine, Input, Output,
array_lengthof(Output));
}
TEST(CommandLineTest, TokenizeConfigFile1) {
const char *Input = "\\";
const char *const Output[] = { "\\" };
testCommandLineTokenizer(cl::tokenizeConfigFile, Input, Output,
array_lengthof(Output));
}
TEST(CommandLineTest, TokenizeConfigFile2) {
const char *Input = "\\abc";
const char *const Output[] = { "abc" };
testCommandLineTokenizer(cl::tokenizeConfigFile, Input, Output,
array_lengthof(Output));
}
TEST(CommandLineTest, TokenizeConfigFile3) {
const char *Input = "abc\\";
const char *const Output[] = { "abc\\" };
testCommandLineTokenizer(cl::tokenizeConfigFile, Input, Output,
array_lengthof(Output));
}
TEST(CommandLineTest, TokenizeConfigFile4) {
const char *Input = "abc\\\n123";
const char *const Output[] = { "abc123" };
testCommandLineTokenizer(cl::tokenizeConfigFile, Input, Output,
array_lengthof(Output));
}
TEST(CommandLineTest, TokenizeConfigFile5) {
const char *Input = "abc\\\r\n123";
const char *const Output[] = { "abc123" };
testCommandLineTokenizer(cl::tokenizeConfigFile, Input, Output,
array_lengthof(Output));
}
TEST(CommandLineTest, TokenizeConfigFile6) {
const char *Input = "abc\\\n";
const char *const Output[] = { "abc" };
testCommandLineTokenizer(cl::tokenizeConfigFile, Input, Output,
array_lengthof(Output));
}
TEST(CommandLineTest, TokenizeConfigFile7) {
const char *Input = "abc\\\r\n";
const char *const Output[] = { "abc" };
testCommandLineTokenizer(cl::tokenizeConfigFile, Input, Output,
array_lengthof(Output));
}
TEST(CommandLineTest, TokenizeConfigFile8) {
SmallVector<const char *, 0> Actual;
BumpPtrAllocator A;
StringSaver Saver(A);
cl::tokenizeConfigFile("\\\n", Saver, Actual, /*MarkEOLs=*/false);
EXPECT_TRUE(Actual.empty());
}
TEST(CommandLineTest, TokenizeConfigFile9) {
SmallVector<const char *, 0> Actual;
BumpPtrAllocator A;
StringSaver Saver(A);
cl::tokenizeConfigFile("\\\r\n", Saver, Actual, /*MarkEOLs=*/false);
EXPECT_TRUE(Actual.empty());
}
TEST(CommandLineTest, TokenizeConfigFile10) {
const char *Input = "\\\nabc";
const char *const Output[] = { "abc" };
testCommandLineTokenizer(cl::tokenizeConfigFile, Input, Output,
array_lengthof(Output));
}
TEST(CommandLineTest, TokenizeConfigFile11) {
const char *Input = "\\\r\nabc";
const char *const Output[] = { "abc" };
testCommandLineTokenizer(cl::tokenizeConfigFile, Input, Output,
array_lengthof(Output));
}
TEST(CommandLineTest, AliasesWithArguments) {
static const size_t ARGC = 3;
const char *const Inputs[][ARGC] = {
{ "-tool", "-actual=x", "-extra" },
{ "-tool", "-actual", "x" },
{ "-tool", "-alias=x", "-extra" },
{ "-tool", "-alias", "x" }
};
for (size_t i = 0, e = array_lengthof(Inputs); i < e; ++i) {
StackOption<std::string> Actual("actual");
StackOption<bool> Extra("extra");
StackOption<std::string> Input(cl::Positional);
cl::alias Alias("alias", llvm::cl::aliasopt(Actual));
cl::ParseCommandLineOptions(ARGC, Inputs[i]);
EXPECT_EQ("x", Actual);
EXPECT_EQ(0, Input.getNumOccurrences());
Alias.removeArgument();
}
}
void testAliasRequired(int argc, const char *const *argv) {
StackOption<std::string> Option("option", cl::Required);
cl::alias Alias("o", llvm::cl::aliasopt(Option));
cl::ParseCommandLineOptions(argc, argv);
EXPECT_EQ("x", Option);
EXPECT_EQ(1, Option.getNumOccurrences());
Alias.removeArgument();
}
TEST(CommandLineTest, AliasRequired) {
const char *opts1[] = { "-tool", "-option=x" };
const char *opts2[] = { "-tool", "-o", "x" };
testAliasRequired(array_lengthof(opts1), opts1);
testAliasRequired(array_lengthof(opts2), opts2);
}
TEST(CommandLineTest, HideUnrelatedOptions) {
StackOption<int> TestOption1("hide-option-1");
StackOption<int> TestOption2("hide-option-2", cl::cat(TestCategory));
cl::HideUnrelatedOptions(TestCategory);
ASSERT_EQ(cl::ReallyHidden, TestOption1.getOptionHiddenFlag())
<< "Failed to hide extra option.";
ASSERT_EQ(cl::NotHidden, TestOption2.getOptionHiddenFlag())
<< "Hid extra option that should be visable.";
StringMap<cl::Option *> &Map =
cl::getRegisteredOptions(*cl::TopLevelSubCommand);
ASSERT_EQ(cl::NotHidden, Map["help"]->getOptionHiddenFlag())
<< "Hid default option that should be visable.";
}
cl::OptionCategory TestCategory2("Test Options set 2", "Description");
TEST(CommandLineTest, HideUnrelatedOptionsMulti) {
StackOption<int> TestOption1("multi-hide-option-1");
StackOption<int> TestOption2("multi-hide-option-2", cl::cat(TestCategory));
StackOption<int> TestOption3("multi-hide-option-3", cl::cat(TestCategory2));
const cl::OptionCategory *VisibleCategories[] = {&TestCategory,
&TestCategory2};
cl::HideUnrelatedOptions(makeArrayRef(VisibleCategories));
ASSERT_EQ(cl::ReallyHidden, TestOption1.getOptionHiddenFlag())
<< "Failed to hide extra option.";
ASSERT_EQ(cl::NotHidden, TestOption2.getOptionHiddenFlag())
<< "Hid extra option that should be visable.";
ASSERT_EQ(cl::NotHidden, TestOption3.getOptionHiddenFlag())
<< "Hid extra option that should be visable.";
StringMap<cl::Option *> &Map =
cl::getRegisteredOptions(*cl::TopLevelSubCommand);
ASSERT_EQ(cl::NotHidden, Map["help"]->getOptionHiddenFlag())
<< "Hid default option that should be visable.";
}
TEST(CommandLineTest, SetValueInSubcategories) {
cl::ResetCommandLineParser();
StackSubCommand SC1("sc1", "First subcommand");
StackSubCommand SC2("sc2", "Second subcommand");
StackOption<bool> TopLevelOpt("top-level", cl::init(false));
StackOption<bool> SC1Opt("sc1", cl::sub(SC1), cl::init(false));
StackOption<bool> SC2Opt("sc2", cl::sub(SC2), cl::init(false));
EXPECT_FALSE(TopLevelOpt);
EXPECT_FALSE(SC1Opt);
EXPECT_FALSE(SC2Opt);
const char *args[] = {"prog", "-top-level"};
EXPECT_TRUE(
cl::ParseCommandLineOptions(2, args, StringRef(), &llvm::nulls()));
EXPECT_TRUE(TopLevelOpt);
EXPECT_FALSE(SC1Opt);
EXPECT_FALSE(SC2Opt);
TopLevelOpt = false;
cl::ResetAllOptionOccurrences();
EXPECT_FALSE(TopLevelOpt);
EXPECT_FALSE(SC1Opt);
EXPECT_FALSE(SC2Opt);
const char *args2[] = {"prog", "sc1", "-sc1"};
EXPECT_TRUE(
cl::ParseCommandLineOptions(3, args2, StringRef(), &llvm::nulls()));
EXPECT_FALSE(TopLevelOpt);
EXPECT_TRUE(SC1Opt);
EXPECT_FALSE(SC2Opt);
SC1Opt = false;
cl::ResetAllOptionOccurrences();
EXPECT_FALSE(TopLevelOpt);
EXPECT_FALSE(SC1Opt);
EXPECT_FALSE(SC2Opt);
const char *args3[] = {"prog", "sc2", "-sc2"};
EXPECT_TRUE(
cl::ParseCommandLineOptions(3, args3, StringRef(), &llvm::nulls()));
EXPECT_FALSE(TopLevelOpt);
EXPECT_FALSE(SC1Opt);
EXPECT_TRUE(SC2Opt);
}
TEST(CommandLineTest, LookupFailsInWrongSubCommand) {
cl::ResetCommandLineParser();
StackSubCommand SC1("sc1", "First subcommand");
StackSubCommand SC2("sc2", "Second subcommand");
StackOption<bool> SC1Opt("sc1", cl::sub(SC1), cl::init(false));
StackOption<bool> SC2Opt("sc2", cl::sub(SC2), cl::init(false));
std::string Errs;
raw_string_ostream OS(Errs);
const char *args[] = {"prog", "sc1", "-sc2"};
EXPECT_FALSE(cl::ParseCommandLineOptions(3, args, StringRef(), &OS));
OS.flush();
EXPECT_FALSE(Errs.empty());
}
TEST(CommandLineTest, AddToAllSubCommands) {
cl::ResetCommandLineParser();
StackSubCommand SC1("sc1", "First subcommand");
StackOption<bool> AllOpt("everywhere", cl::sub(*cl::AllSubCommands),
cl::init(false));
StackSubCommand SC2("sc2", "Second subcommand");
const char *args[] = {"prog", "-everywhere"};
const char *args2[] = {"prog", "sc1", "-everywhere"};
const char *args3[] = {"prog", "sc2", "-everywhere"};
std::string Errs;
raw_string_ostream OS(Errs);
EXPECT_FALSE(AllOpt);
EXPECT_TRUE(cl::ParseCommandLineOptions(2, args, StringRef(), &OS));
EXPECT_TRUE(AllOpt);
AllOpt = false;
cl::ResetAllOptionOccurrences();
EXPECT_FALSE(AllOpt);
EXPECT_TRUE(cl::ParseCommandLineOptions(3, args2, StringRef(), &OS));
EXPECT_TRUE(AllOpt);
AllOpt = false;
cl::ResetAllOptionOccurrences();
EXPECT_FALSE(AllOpt);
EXPECT_TRUE(cl::ParseCommandLineOptions(3, args3, StringRef(), &OS));
EXPECT_TRUE(AllOpt);
// Since all parsing succeeded, the error message should be empty.
OS.flush();
EXPECT_TRUE(Errs.empty());
}
TEST(CommandLineTest, ReparseCommandLineOptions) {
cl::ResetCommandLineParser();
StackOption<bool> TopLevelOpt("top-level", cl::sub(*cl::TopLevelSubCommand),
cl::init(false));
const char *args[] = {"prog", "-top-level"};
EXPECT_FALSE(TopLevelOpt);
EXPECT_TRUE(
cl::ParseCommandLineOptions(2, args, StringRef(), &llvm::nulls()));
EXPECT_TRUE(TopLevelOpt);
TopLevelOpt = false;
cl::ResetAllOptionOccurrences();
EXPECT_FALSE(TopLevelOpt);
EXPECT_TRUE(
cl::ParseCommandLineOptions(2, args, StringRef(), &llvm::nulls()));
EXPECT_TRUE(TopLevelOpt);
}
TEST(CommandLineTest, RemoveFromRegularSubCommand) {
cl::ResetCommandLineParser();
StackSubCommand SC("sc", "Subcommand");
StackOption<bool> RemoveOption("remove-option", cl::sub(SC), cl::init(false));
StackOption<bool> KeepOption("keep-option", cl::sub(SC), cl::init(false));
const char *args[] = {"prog", "sc", "-remove-option"};
std::string Errs;
raw_string_ostream OS(Errs);
EXPECT_FALSE(RemoveOption);
EXPECT_TRUE(cl::ParseCommandLineOptions(3, args, StringRef(), &OS));
EXPECT_TRUE(RemoveOption);
OS.flush();
EXPECT_TRUE(Errs.empty());
RemoveOption.removeArgument();
cl::ResetAllOptionOccurrences();
EXPECT_FALSE(cl::ParseCommandLineOptions(3, args, StringRef(), &OS));
OS.flush();
EXPECT_FALSE(Errs.empty());
}
TEST(CommandLineTest, RemoveFromTopLevelSubCommand) {
cl::ResetCommandLineParser();
StackOption<bool> TopLevelRemove(
"top-level-remove", cl::sub(*cl::TopLevelSubCommand), cl::init(false));
StackOption<bool> TopLevelKeep(
"top-level-keep", cl::sub(*cl::TopLevelSubCommand), cl::init(false));
const char *args[] = {"prog", "-top-level-remove"};
EXPECT_FALSE(TopLevelRemove);
EXPECT_TRUE(
cl::ParseCommandLineOptions(2, args, StringRef(), &llvm::nulls()));
EXPECT_TRUE(TopLevelRemove);
TopLevelRemove.removeArgument();
cl::ResetAllOptionOccurrences();
EXPECT_FALSE(
cl::ParseCommandLineOptions(2, args, StringRef(), &llvm::nulls()));
}
TEST(CommandLineTest, RemoveFromAllSubCommands) {
cl::ResetCommandLineParser();
StackSubCommand SC1("sc1", "First Subcommand");
StackSubCommand SC2("sc2", "Second Subcommand");
StackOption<bool> RemoveOption("remove-option", cl::sub(*cl::AllSubCommands),
cl::init(false));
StackOption<bool> KeepOption("keep-option", cl::sub(*cl::AllSubCommands),
cl::init(false));
const char *args0[] = {"prog", "-remove-option"};
const char *args1[] = {"prog", "sc1", "-remove-option"};
const char *args2[] = {"prog", "sc2", "-remove-option"};
// It should work for all subcommands including the top-level.
EXPECT_FALSE(RemoveOption);
EXPECT_TRUE(
cl::ParseCommandLineOptions(2, args0, StringRef(), &llvm::nulls()));
EXPECT_TRUE(RemoveOption);
RemoveOption = false;
cl::ResetAllOptionOccurrences();
EXPECT_FALSE(RemoveOption);
EXPECT_TRUE(
cl::ParseCommandLineOptions(3, args1, StringRef(), &llvm::nulls()));
EXPECT_TRUE(RemoveOption);
RemoveOption = false;
cl::ResetAllOptionOccurrences();
EXPECT_FALSE(RemoveOption);
EXPECT_TRUE(
cl::ParseCommandLineOptions(3, args2, StringRef(), &llvm::nulls()));
EXPECT_TRUE(RemoveOption);
RemoveOption.removeArgument();
// It should not work for any subcommands including the top-level.
cl::ResetAllOptionOccurrences();
EXPECT_FALSE(
cl::ParseCommandLineOptions(2, args0, StringRef(), &llvm::nulls()));
cl::ResetAllOptionOccurrences();
EXPECT_FALSE(
cl::ParseCommandLineOptions(3, args1, StringRef(), &llvm::nulls()));
cl::ResetAllOptionOccurrences();
EXPECT_FALSE(
cl::ParseCommandLineOptions(3, args2, StringRef(), &llvm::nulls()));
}
TEST(CommandLineTest, GetRegisteredSubcommands) {
cl::ResetCommandLineParser();
StackSubCommand SC1("sc1", "First Subcommand");
StackOption<bool> Opt1("opt1", cl::sub(SC1), cl::init(false));
StackSubCommand SC2("sc2", "Second subcommand");
StackOption<bool> Opt2("opt2", cl::sub(SC2), cl::init(false));
const char *args0[] = {"prog", "sc1"};
const char *args1[] = {"prog", "sc2"};
EXPECT_TRUE(
cl::ParseCommandLineOptions(2, args0, StringRef(), &llvm::nulls()));
EXPECT_FALSE(Opt1);
EXPECT_FALSE(Opt2);
for (auto *S : cl::getRegisteredSubcommands()) {
if (*S) {
EXPECT_EQ("sc1", S->getName());
}
}
cl::ResetAllOptionOccurrences();
EXPECT_TRUE(
cl::ParseCommandLineOptions(2, args1, StringRef(), &llvm::nulls()));
EXPECT_FALSE(Opt1);
EXPECT_FALSE(Opt2);
for (auto *S : cl::getRegisteredSubcommands()) {
if (*S) {
EXPECT_EQ("sc2", S->getName());
}
}
}
TEST(CommandLineTest, ArgumentLimit) {
std::string args(32 * 4096, 'a');
EXPECT_FALSE(llvm::sys::commandLineFitsWithinSystemLimits("cl", args.data()));
}
TEST(CommandLineTest, ResponseFileWindows) {
if (!Triple(sys::getProcessTriple()).isOSWindows())
return;
StackOption<std::string, cl::list<std::string>> InputFilenames(
cl::Positional, cl::desc("<input files>"), cl::ZeroOrMore);
StackOption<bool> TopLevelOpt("top-level", cl::init(false));
// Create response file.
int FileDescriptor;
SmallString<64> TempPath;
std::error_code EC =
llvm::sys::fs::createTemporaryFile("resp-", ".txt", FileDescriptor, TempPath);
EXPECT_TRUE(!EC);
std::ofstream RspFile(TempPath.c_str());
EXPECT_TRUE(RspFile.is_open());
RspFile << "-top-level\npath\\dir\\file1\npath/dir/file2";
RspFile.close();
llvm::SmallString<128> RspOpt;
RspOpt.append(1, '@');
RspOpt.append(TempPath.c_str());
const char *args[] = {"prog", RspOpt.c_str()};
EXPECT_FALSE(TopLevelOpt);
EXPECT_TRUE(
cl::ParseCommandLineOptions(2, args, StringRef(), &llvm::nulls()));
EXPECT_TRUE(TopLevelOpt);
EXPECT_TRUE(InputFilenames[0] == "path\\dir\\file1");
EXPECT_TRUE(InputFilenames[1] == "path/dir/file2");
llvm::sys::fs::remove(TempPath.c_str());
}
TEST(CommandLineTest, ResponseFiles) {
llvm::SmallString<128> TestDir;
std::error_code EC =
llvm::sys::fs::createUniqueDirectory("unittest", TestDir);
EXPECT_TRUE(!EC);
// Create included response file of first level.
llvm::SmallString<128> IncludedFileName;
llvm::sys::path::append(IncludedFileName, TestDir, "resp1");
std::ofstream IncludedFile(IncludedFileName.c_str());
EXPECT_TRUE(IncludedFile.is_open());
IncludedFile << "-option_1 -option_2\n"
"@incdir/resp2\n"
"-option_3=abcd\n";
IncludedFile.close();
// Directory for included file.
llvm::SmallString<128> IncDir;
llvm::sys::path::append(IncDir, TestDir, "incdir");
EC = llvm::sys::fs::create_directory(IncDir);
EXPECT_TRUE(!EC);
// Create included response file of second level.
llvm::SmallString<128> IncludedFileName2;
llvm::sys::path::append(IncludedFileName2, IncDir, "resp2");
std::ofstream IncludedFile2(IncludedFileName2.c_str());
EXPECT_TRUE(IncludedFile2.is_open());
IncludedFile2 << "-option_21 -option_22\n";
IncludedFile2 << "-option_23=abcd\n";
IncludedFile2.close();
// Prepare 'file' with reference to response file.
SmallString<128> IncRef;
IncRef.append(1, '@');
IncRef.append(IncludedFileName.c_str());
llvm::SmallVector<const char *, 4> Argv =
{ "test/test", "-flag_1", IncRef.c_str(), "-flag_2" };
// Expand response files.
llvm::BumpPtrAllocator A;
llvm::StringSaver Saver(A);
bool Res = llvm::cl::ExpandResponseFiles(
Saver, llvm::cl::TokenizeGNUCommandLine, Argv, false, true);
EXPECT_TRUE(Res);
EXPECT_EQ(Argv.size(), 9U);
EXPECT_STREQ(Argv[0], "test/test");
EXPECT_STREQ(Argv[1], "-flag_1");
EXPECT_STREQ(Argv[2], "-option_1");
EXPECT_STREQ(Argv[3], "-option_2");
EXPECT_STREQ(Argv[4], "-option_21");
EXPECT_STREQ(Argv[5], "-option_22");
EXPECT_STREQ(Argv[6], "-option_23=abcd");
EXPECT_STREQ(Argv[7], "-option_3=abcd");
EXPECT_STREQ(Argv[8], "-flag_2");
llvm::sys::fs::remove(IncludedFileName2);
llvm::sys::fs::remove(IncDir);
llvm::sys::fs::remove(IncludedFileName);
llvm::sys::fs::remove(TestDir);
}
TEST(CommandLineTest, SetDefautValue) {
cl::ResetCommandLineParser();
StackOption<std::string> Opt1("opt1", cl::init("true"));
StackOption<bool> Opt2("opt2", cl::init(true));
cl::alias Alias("alias", llvm::cl::aliasopt(Opt2));
StackOption<int> Opt3("opt3", cl::init(3));
const char *args[] = {"prog", "-opt1=false", "-opt2", "-opt3"};
EXPECT_TRUE(
cl::ParseCommandLineOptions(2, args, StringRef(), &llvm::nulls()));
EXPECT_TRUE(Opt1 == "false");
EXPECT_TRUE(Opt2);
EXPECT_TRUE(Opt3 == 3);
Opt2 = false;
Opt3 = 1;
cl::ResetAllOptionOccurrences();
for (auto &OM : cl::getRegisteredOptions(*cl::TopLevelSubCommand)) {
cl::Option *O = OM.second;
if (O->ArgStr == "opt2") {
continue;
}
O->setDefault();
}
EXPECT_TRUE(Opt1 == "true");
EXPECT_TRUE(Opt2);
EXPECT_TRUE(Opt3 == 3);
Alias.removeArgument();
}
TEST(CommandLineTest, ReadConfigFile) {
llvm::SmallVector<const char *, 1> Argv;
llvm::SmallString<128> TestDir;
std::error_code EC =
llvm::sys::fs::createUniqueDirectory("unittest", TestDir);
EXPECT_TRUE(!EC);
llvm::SmallString<128> TestCfg;
llvm::sys::path::append(TestCfg, TestDir, "foo");
std::ofstream ConfigFile(TestCfg.c_str());
EXPECT_TRUE(ConfigFile.is_open());
ConfigFile << "# Comment\n"
"-option_1\n"
"@subconfig\n"
"-option_3=abcd\n"
"-option_4=\\\n"
"cdef\n";
ConfigFile.close();
llvm::SmallString<128> TestCfg2;
llvm::sys::path::append(TestCfg2, TestDir, "subconfig");
std::ofstream ConfigFile2(TestCfg2.c_str());
EXPECT_TRUE(ConfigFile2.is_open());
ConfigFile2 << "-option_2\n"
"\n"
" # comment\n";
ConfigFile2.close();
// Make sure the current directory is not the directory where config files
// resides. In this case the code that expands response files will not find
// 'subconfig' unless it resolves nested inclusions relative to the including
// file.
llvm::SmallString<128> CurrDir;
EC = llvm::sys::fs::current_path(CurrDir);
EXPECT_TRUE(!EC);
EXPECT_TRUE(StringRef(CurrDir) != StringRef(TestDir));
llvm::BumpPtrAllocator A;
llvm::StringSaver Saver(A);
bool Result = llvm::cl::readConfigFile(TestCfg, Saver, Argv);
EXPECT_TRUE(Result);
EXPECT_EQ(Argv.size(), 4U);
EXPECT_STREQ(Argv[0], "-option_1");
EXPECT_STREQ(Argv[1], "-option_2");
EXPECT_STREQ(Argv[2], "-option_3=abcd");
EXPECT_STREQ(Argv[3], "-option_4=cdef");
llvm::sys::fs::remove(TestCfg2);
llvm::sys::fs::remove(TestCfg);
llvm::sys::fs::remove(TestDir);
}
TEST(CommandLineTest, PositionalEatArgsError) {
StackOption<std::string, cl::list<std::string>> PosEatArgs(
"positional-eat-args", cl::Positional, cl::desc("<arguments>..."),
cl::ZeroOrMore, cl::PositionalEatsArgs);
const char *args[] = {"prog", "-positional-eat-args=XXXX"};
const char *args2[] = {"prog", "-positional-eat-args=XXXX", "-foo"};
const char *args3[] = {"prog", "-positional-eat-args", "-foo"};
std::string Errs;
raw_string_ostream OS(Errs);
EXPECT_FALSE(cl::ParseCommandLineOptions(2, args, StringRef(), &OS)); OS.flush();
EXPECT_FALSE(Errs.empty()); Errs.clear();
EXPECT_FALSE(cl::ParseCommandLineOptions(3, args2, StringRef(), &OS)); OS.flush();
EXPECT_FALSE(Errs.empty()); Errs.clear();
EXPECT_TRUE(cl::ParseCommandLineOptions(3, args3, StringRef(), &OS)); OS.flush();
EXPECT_TRUE(Errs.empty());
}
#ifdef _WIN32
TEST(CommandLineTest, GetCommandLineArguments) {
int argc = __argc;
char **argv = __argv;
// GetCommandLineArguments is called in InitLLVM.
llvm::InitLLVM X(argc, argv);
EXPECT_EQ(llvm::sys::path::is_absolute(argv[0]),
llvm::sys::path::is_absolute(__argv[0]));
EXPECT_TRUE(llvm::sys::path::filename(argv[0])
.equals_lower("supporttests.exe"))
<< "Filename of test executable is "
<< llvm::sys::path::filename(argv[0]);
}
#endif
class OutputRedirector {
public:
OutputRedirector(int RedirectFD)
: RedirectFD(RedirectFD), OldFD(dup(RedirectFD)) {
if (OldFD == -1 ||
sys::fs::createTemporaryFile("unittest-redirect", "", NewFD,
FilePath) ||
dup2(NewFD, RedirectFD) == -1)
Valid = false;
}
~OutputRedirector() {
dup2(OldFD, RedirectFD);
close(OldFD);
close(NewFD);
}
SmallVector<char, 128> FilePath;
bool Valid = true;
private:
int RedirectFD;
int OldFD;
int NewFD;
};
struct AutoDeleteFile {
SmallVector<char, 128> FilePath;
~AutoDeleteFile() {
if (!FilePath.empty())
sys::fs::remove(std::string(FilePath.data(), FilePath.size()));
}
};
class PrintOptionInfoTest : public ::testing::Test {
public:
// Return std::string because the output of a failing EXPECT check is
// unreadable for StringRef. It also avoids any lifetime issues.
template <typename... Ts> std::string runTest(Ts... OptionAttributes) {
AutoDeleteFile File;
{
OutputRedirector Stdout(fileno(stdout));
if (!Stdout.Valid)
return "";
File.FilePath = Stdout.FilePath;
StackOption<OptionValue> TestOption(Opt, cl::desc(HelpText),
OptionAttributes...);
printOptionInfo(TestOption, 25);
outs().flush();
}
auto Buffer = MemoryBuffer::getFile(File.FilePath);
if (!Buffer)
return "";
return Buffer->get()->getBuffer().str();
}
enum class OptionValue { Val };
const StringRef Opt = "some-option";
const StringRef HelpText = "some help";
private:
// This is a workaround for cl::Option sub-classes having their
// printOptionInfo functions private.
void printOptionInfo(const cl::Option &O, size_t Width) {
O.printOptionInfo(Width);
}
};
TEST_F(PrintOptionInfoTest, PrintOptionInfoValueOptionalWithoutSentinel) {
std::string Output =
runTest(cl::ValueOptional,
cl::values(clEnumValN(OptionValue::Val, "v1", "desc1")));
// clang-format off
EXPECT_EQ(Output, (" -" + Opt + "=<value> - " + HelpText + "\n"
" =v1 - desc1\n")
.str());
// clang-format on
}
TEST_F(PrintOptionInfoTest, PrintOptionInfoValueOptionalWithSentinel) {
std::string Output = runTest(
cl::ValueOptional, cl::values(clEnumValN(OptionValue::Val, "v1", "desc1"),
clEnumValN(OptionValue::Val, "", "")));
// clang-format off
EXPECT_EQ(Output,
(" -" + Opt + " - " + HelpText + "\n"
" -" + Opt + "=<value> - " + HelpText + "\n"
" =v1 - desc1\n")
.str());
// clang-format on
}
TEST_F(PrintOptionInfoTest, PrintOptionInfoValueOptionalWithSentinelWithHelp) {
std::string Output = runTest(
cl::ValueOptional, cl::values(clEnumValN(OptionValue::Val, "v1", "desc1"),
clEnumValN(OptionValue::Val, "", "desc2")));
// clang-format off
EXPECT_EQ(Output, (" -" + Opt + " - " + HelpText + "\n"
" -" + Opt + "=<value> - " + HelpText + "\n"
" =v1 - desc1\n"
" =<empty> - desc2\n")
.str());
// clang-format on
}
TEST_F(PrintOptionInfoTest, PrintOptionInfoValueRequiredWithEmptyValueName) {
std::string Output = runTest(
cl::ValueRequired, cl::values(clEnumValN(OptionValue::Val, "v1", "desc1"),
clEnumValN(OptionValue::Val, "", "")));
// clang-format off
EXPECT_EQ(Output, (" -" + Opt + "=<value> - " + HelpText + "\n"
" =v1 - desc1\n"
" =<empty>\n")
.str());
// clang-format on
}
TEST_F(PrintOptionInfoTest, PrintOptionInfoEmptyValueDescription) {
std::string Output = runTest(
cl::ValueRequired, cl::values(clEnumValN(OptionValue::Val, "v1", "")));
// clang-format off
EXPECT_EQ(Output,
(" -" + Opt + "=<value> - " + HelpText + "\n"
" =v1\n").str());
// clang-format on
}
class GetOptionWidthTest : public ::testing::Test {
public:
enum class OptionValue { Val };
template <typename... Ts>
size_t runTest(StringRef ArgName, Ts... OptionAttributes) {
StackOption<OptionValue> TestOption(ArgName, cl::desc("some help"),
OptionAttributes...);
return getOptionWidth(TestOption);
}
private:
// This is a workaround for cl::Option sub-classes having their
// printOptionInfo
// functions private.
size_t getOptionWidth(const cl::Option &O) { return O.getOptionWidth(); }
};
TEST_F(GetOptionWidthTest, GetOptionWidthArgNameLonger) {
StringRef ArgName("a-long-argument-name");
size_t ExpectedStrSize = (" -" + ArgName + "=<value> - ").str().size();
EXPECT_EQ(
runTest(ArgName, cl::values(clEnumValN(OptionValue::Val, "v", "help"))),
ExpectedStrSize);
}
TEST_F(GetOptionWidthTest, GetOptionWidthFirstOptionNameLonger) {
StringRef OptName("a-long-option-name");
size_t ExpectedStrSize = (" =" + OptName + " - ").str().size();
EXPECT_EQ(
runTest("a", cl::values(clEnumValN(OptionValue::Val, OptName, "help"),
clEnumValN(OptionValue::Val, "b", "help"))),
ExpectedStrSize);
}
TEST_F(GetOptionWidthTest, GetOptionWidthSecondOptionNameLonger) {
StringRef OptName("a-long-option-name");
size_t ExpectedStrSize = (" =" + OptName + " - ").str().size();
EXPECT_EQ(
runTest("a", cl::values(clEnumValN(OptionValue::Val, "b", "help"),
clEnumValN(OptionValue::Val, OptName, "help"))),
ExpectedStrSize);
}
TEST_F(GetOptionWidthTest, GetOptionWidthEmptyOptionNameLonger) {
size_t ExpectedStrSize = StringRef(" =<empty> - ").size();
// The length of a=<value> (including indentation) is actually the same as the
// =<empty> string, so it is impossible to distinguish via testing the case
// where the empty string is picked from where the option name is picked.
EXPECT_EQ(runTest("a", cl::values(clEnumValN(OptionValue::Val, "b", "help"),
clEnumValN(OptionValue::Val, "", "help"))),
ExpectedStrSize);
}
TEST_F(GetOptionWidthTest,
GetOptionWidthValueOptionalEmptyOptionWithNoDescription) {
StringRef ArgName("a");
// The length of a=<value> (including indentation) is actually the same as the
// =<empty> string, so it is impossible to distinguish via testing the case
// where the empty string is ignored from where it is not ignored.
// The dash will not actually be printed, but the space it would take up is
// included to ensure a consistent column width.
size_t ExpectedStrSize = (" -" + ArgName + "=<value> - ").str().size();
EXPECT_EQ(runTest(ArgName, cl::ValueOptional,
cl::values(clEnumValN(OptionValue::Val, "value", "help"),
clEnumValN(OptionValue::Val, "", ""))),
ExpectedStrSize);
}
TEST_F(GetOptionWidthTest,
GetOptionWidthValueRequiredEmptyOptionWithNoDescription) {
// The length of a=<value> (including indentation) is actually the same as the
// =<empty> string, so it is impossible to distinguish via testing the case
// where the empty string is picked from where the option name is picked
size_t ExpectedStrSize = StringRef(" =<empty> - ").size();
EXPECT_EQ(runTest("a", cl::ValueRequired,
cl::values(clEnumValN(OptionValue::Val, "value", "help"),
clEnumValN(OptionValue::Val, "", ""))),
ExpectedStrSize);
}
TEST(CommandLineTest, PrefixOptions) {
cl::ResetCommandLineParser();
StackOption<std::string, cl::list<std::string>> IncludeDirs(
"I", cl::Prefix, cl::desc("Declare an include directory"));
// Test non-prefixed variant works with cl::Prefix options.
EXPECT_TRUE(IncludeDirs.empty());
const char *args[] = {"prog", "-I=/usr/include"};
EXPECT_TRUE(
cl::ParseCommandLineOptions(2, args, StringRef(), &llvm::nulls()));
EXPECT_TRUE(IncludeDirs.size() == 1);
EXPECT_TRUE(IncludeDirs.front().compare("/usr/include") == 0);
IncludeDirs.erase(IncludeDirs.begin());
cl::ResetAllOptionOccurrences();
// Test non-prefixed variant works with cl::Prefix options when value is
// passed in following argument.
EXPECT_TRUE(IncludeDirs.empty());
const char *args2[] = {"prog", "-I", "/usr/include"};
EXPECT_TRUE(
cl::ParseCommandLineOptions(3, args2, StringRef(), &llvm::nulls()));
EXPECT_TRUE(IncludeDirs.size() == 1);
EXPECT_TRUE(IncludeDirs.front().compare("/usr/include") == 0);
IncludeDirs.erase(IncludeDirs.begin());
cl::ResetAllOptionOccurrences();
// Test prefixed variant works with cl::Prefix options.
EXPECT_TRUE(IncludeDirs.empty());
const char *args3[] = {"prog", "-I/usr/include"};
EXPECT_TRUE(
cl::ParseCommandLineOptions(2, args3, StringRef(), &llvm::nulls()));
EXPECT_TRUE(IncludeDirs.size() == 1);
EXPECT_TRUE(IncludeDirs.front().compare("/usr/include") == 0);
StackOption<std::string, cl::list<std::string>> MacroDefs(
"D", cl::AlwaysPrefix, cl::desc("Define a macro"),
cl::value_desc("MACRO[=VALUE]"));
cl::ResetAllOptionOccurrences();
// Test non-prefixed variant does not work with cl::AlwaysPrefix options:
// equal sign is part of the value.
EXPECT_TRUE(MacroDefs.empty());
const char *args4[] = {"prog", "-D=HAVE_FOO"};
EXPECT_TRUE(
cl::ParseCommandLineOptions(2, args4, StringRef(), &llvm::nulls()));
EXPECT_TRUE(MacroDefs.size() == 1);
EXPECT_TRUE(MacroDefs.front().compare("=HAVE_FOO") == 0);
MacroDefs.erase(MacroDefs.begin());
cl::ResetAllOptionOccurrences();
// Test non-prefixed variant does not allow value to be passed in following
// argument with cl::AlwaysPrefix options.
EXPECT_TRUE(MacroDefs.empty());
const char *args5[] = {"prog", "-D", "HAVE_FOO"};
EXPECT_FALSE(
cl::ParseCommandLineOptions(3, args5, StringRef(), &llvm::nulls()));
EXPECT_TRUE(MacroDefs.empty());
cl::ResetAllOptionOccurrences();
// Test prefixed variant works with cl::AlwaysPrefix options.
EXPECT_TRUE(MacroDefs.empty());
const char *args6[] = {"prog", "-DHAVE_FOO"};
EXPECT_TRUE(
cl::ParseCommandLineOptions(2, args6, StringRef(), &llvm::nulls()));
EXPECT_TRUE(MacroDefs.size() == 1);
EXPECT_TRUE(MacroDefs.front().compare("HAVE_FOO") == 0);
}
TEST(CommandLineTest, GroupingWithValue) {
cl::ResetCommandLineParser();
StackOption<bool> OptF("f", cl::Grouping, cl::desc("Some flag"));
StackOption<bool> OptB("b", cl::Grouping, cl::desc("Another flag"));
StackOption<bool> OptD("d", cl::Grouping, cl::ValueDisallowed,
cl::desc("ValueDisallowed option"));
StackOption<std::string> OptV("v", cl::Grouping,
cl::desc("ValueRequired option"));
StackOption<std::string> OptO("o", cl::Grouping, cl::ValueOptional,
cl::desc("ValueOptional option"));
// Should be possible to use an option which requires a value
// at the end of a group.
const char *args1[] = {"prog", "-fv", "val1"};
EXPECT_TRUE(
cl::ParseCommandLineOptions(3, args1, StringRef(), &llvm::nulls()));
EXPECT_TRUE(OptF);
EXPECT_STREQ("val1", OptV.c_str());
OptV.clear();
cl::ResetAllOptionOccurrences();
// Should not crash if it is accidentally used elsewhere in the group.
const char *args2[] = {"prog", "-vf", "val2"};
EXPECT_FALSE(
cl::ParseCommandLineOptions(3, args2, StringRef(), &llvm::nulls()));
OptV.clear();
cl::ResetAllOptionOccurrences();
// Should allow the "opt=value" form at the end of the group
const char *args3[] = {"prog", "-fv=val3"};
EXPECT_TRUE(
cl::ParseCommandLineOptions(2, args3, StringRef(), &llvm::nulls()));
EXPECT_TRUE(OptF);
EXPECT_STREQ("val3", OptV.c_str());
OptV.clear();
cl::ResetAllOptionOccurrences();
// Should allow assigning a value for a ValueOptional option
// at the end of the group
const char *args4[] = {"prog", "-fo=val4"};
EXPECT_TRUE(
cl::ParseCommandLineOptions(2, args4, StringRef(), &llvm::nulls()));
EXPECT_TRUE(OptF);
EXPECT_STREQ("val4", OptO.c_str());
OptO.clear();
cl::ResetAllOptionOccurrences();
// Should assign an empty value if a ValueOptional option is used elsewhere
// in the group.
const char *args5[] = {"prog", "-fob"};
EXPECT_TRUE(
cl::ParseCommandLineOptions(2, args5, StringRef(), &llvm::nulls()));
EXPECT_TRUE(OptF);
EXPECT_EQ(1, OptO.getNumOccurrences());
EXPECT_EQ(1, OptB.getNumOccurrences());
EXPECT_TRUE(OptO.empty());
cl::ResetAllOptionOccurrences();
// Should not allow an assignment for a ValueDisallowed option.
const char *args6[] = {"prog", "-fd=false"};
EXPECT_FALSE(
cl::ParseCommandLineOptions(2, args6, StringRef(), &llvm::nulls()));
}
TEST(CommandLineTest, GroupingAndPrefix) {
cl::ResetCommandLineParser();
StackOption<bool> OptF("f", cl::Grouping, cl::desc("Some flag"));
StackOption<bool> OptB("b", cl::Grouping, cl::desc("Another flag"));
StackOption<std::string> OptP("p", cl::Prefix, cl::Grouping,
cl::desc("Prefix and Grouping"));
StackOption<std::string> OptA("a", cl::AlwaysPrefix, cl::Grouping,
cl::desc("AlwaysPrefix and Grouping"));
// Should be possible to use a cl::Prefix option without grouping.
const char *args1[] = {"prog", "-pval1"};
EXPECT_TRUE(
cl::ParseCommandLineOptions(2, args1, StringRef(), &llvm::nulls()));
EXPECT_STREQ("val1", OptP.c_str());
OptP.clear();
cl::ResetAllOptionOccurrences();
// Should be possible to pass a value in a separate argument.
const char *args2[] = {"prog", "-p", "val2"};
EXPECT_TRUE(
cl::ParseCommandLineOptions(3, args2, StringRef(), &llvm::nulls()));
EXPECT_STREQ("val2", OptP.c_str());
OptP.clear();
cl::ResetAllOptionOccurrences();
// The "-opt=value" form should work, too.
const char *args3[] = {"prog", "-p=val3"};
EXPECT_TRUE(
cl::ParseCommandLineOptions(2, args3, StringRef(), &llvm::nulls()));
EXPECT_STREQ("val3", OptP.c_str());
OptP.clear();
cl::ResetAllOptionOccurrences();
// All three previous cases should work the same way if an option with both
// cl::Prefix and cl::Grouping modifiers is used at the end of a group.
const char *args4[] = {"prog", "-fpval4"};
EXPECT_TRUE(
cl::ParseCommandLineOptions(2, args4, StringRef(), &llvm::nulls()));
EXPECT_TRUE(OptF);
EXPECT_STREQ("val4", OptP.c_str());
OptP.clear();
cl::ResetAllOptionOccurrences();
const char *args5[] = {"prog", "-fp", "val5"};
EXPECT_TRUE(
cl::ParseCommandLineOptions(3, args5, StringRef(), &llvm::nulls()));
EXPECT_TRUE(OptF);
EXPECT_STREQ("val5", OptP.c_str());
OptP.clear();
cl::ResetAllOptionOccurrences();
const char *args6[] = {"prog", "-fp=val6"};
EXPECT_TRUE(
cl::ParseCommandLineOptions(2, args6, StringRef(), &llvm::nulls()));
EXPECT_TRUE(OptF);
EXPECT_STREQ("val6", OptP.c_str());
OptP.clear();
cl::ResetAllOptionOccurrences();
// Should assign a value even if the part after a cl::Prefix option is equal
// to the name of another option.
const char *args7[] = {"prog", "-fpb"};
EXPECT_TRUE(
cl::ParseCommandLineOptions(2, args7, StringRef(), &llvm::nulls()));
EXPECT_TRUE(OptF);
EXPECT_STREQ("b", OptP.c_str());
EXPECT_FALSE(OptB);
OptP.clear();
cl::ResetAllOptionOccurrences();
// Should be possible to use a cl::AlwaysPrefix option without grouping.
const char *args8[] = {"prog", "-aval8"};
EXPECT_TRUE(
cl::ParseCommandLineOptions(2, args8, StringRef(), &llvm::nulls()));
EXPECT_STREQ("val8", OptA.c_str());
OptA.clear();
cl::ResetAllOptionOccurrences();
// Should not be possible to pass a value in a separate argument.
const char *args9[] = {"prog", "-a", "val9"};
EXPECT_FALSE(
cl::ParseCommandLineOptions(3, args9, StringRef(), &llvm::nulls()));
cl::ResetAllOptionOccurrences();
// With the "-opt=value" form, the "=" symbol should be preserved.
const char *args10[] = {"prog", "-a=val10"};
EXPECT_TRUE(
cl::ParseCommandLineOptions(2, args10, StringRef(), &llvm::nulls()));
EXPECT_STREQ("=val10", OptA.c_str());
OptA.clear();
cl::ResetAllOptionOccurrences();
// All three previous cases should work the same way if an option with both
// cl::AlwaysPrefix and cl::Grouping modifiers is used at the end of a group.
const char *args11[] = {"prog", "-faval11"};
EXPECT_TRUE(
cl::ParseCommandLineOptions(2, args11, StringRef(), &llvm::nulls()));
EXPECT_TRUE(OptF);
EXPECT_STREQ("val11", OptA.c_str());
OptA.clear();
cl::ResetAllOptionOccurrences();
const char *args12[] = {"prog", "-fa", "val12"};
EXPECT_FALSE(
cl::ParseCommandLineOptions(3, args12, StringRef(), &llvm::nulls()));
cl::ResetAllOptionOccurrences();
const char *args13[] = {"prog", "-fa=val13"};
EXPECT_TRUE(
cl::ParseCommandLineOptions(2, args13, StringRef(), &llvm::nulls()));
EXPECT_TRUE(OptF);
EXPECT_STREQ("=val13", OptA.c_str());
OptA.clear();
cl::ResetAllOptionOccurrences();
// Should assign a value even if the part after a cl::AlwaysPrefix option
// is equal to the name of another option.
const char *args14[] = {"prog", "-fab"};
EXPECT_TRUE(
cl::ParseCommandLineOptions(2, args14, StringRef(), &llvm::nulls()));
EXPECT_TRUE(OptF);
EXPECT_STREQ("b", OptA.c_str());
EXPECT_FALSE(OptB);
OptA.clear();
cl::ResetAllOptionOccurrences();
}
} // anonymous namespace
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