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llvm-mirror/unittests/Support/CommandLineTest.cpp
Martin Storsjö 9d14adb9f6 [llvm] Rename StringRef _lower() method calls to _insensitive() 
This is a mechanical change. This actually also renames the
similarly named methods in the SmallString class, however these
methods don't seem to be used outside of the llvm subproject, so
this doesn't break building of the rest of the monorepo.
2021-06-25 00:22:01 +03:00

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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/StringRef.h"
#include "llvm/ADT/Triple.h"
#include "llvm/Config/config.h"
#include "llvm/Support/Allocator.h"
#include "llvm/Support/FileSystem.h"
#include "llvm/Support/Host.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 "llvm/Support/VirtualFileSystem.h"
#include "llvm/Support/raw_ostream.h"
#include "llvm/Testing/Support/SupportHelpers.h"
#include "gmock/gmock.h"
#include "gtest/gtest.h"
#include <fstream>
#include <stdlib.h>
#include <string>
#include <tuple>
using namespace llvm;
using llvm::unittest::TempDir;
using llvm::unittest::TempFile;
namespace {
MATCHER(StringEquality, "Checks if two char* are equal as strings") {
return std::string(std::get<0>(arg)) == std::string(std::get<1>(arg));
}
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);
#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) {
Base::operator=(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_NE(Retrieved->Categories.end(),
find_if(Retrieved->Categories,
[&](const llvm::cl::OptionCategory *Cat) {
return Cat == &cl::GeneralCategory;
}))
<< "Incorrect default option category.";
Retrieved->addCategory(TestCategory);
ASSERT_NE(Retrieved->Categories.end(),
find_if(Retrieved->Categories,
[&](const llvm::cl::OptionCategory *Cat) {
return Cat == &TestCategory;
}))
<< "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.";
}
TEST(CommandLineTest, UseOptionCategory) {
StackOption<int> TestOption2("test-option", cl::cat(TestCategory));
ASSERT_NE(TestOption2.Categories.end(),
find_if(TestOption2.Categories,
[&](const llvm::cl::OptionCategory *Cat) {
return Cat == &TestCategory;
}))
<< "Failed to assign Option Category.";
}
TEST(CommandLineTest, UseMultipleCategories) {
StackOption<int> TestOption2("test-option2", cl::cat(TestCategory),
cl::cat(cl::GeneralCategory),
cl::cat(cl::GeneralCategory));
// Make sure cl::GeneralCategory wasn't added twice.
ASSERT_EQ(TestOption2.Categories.size(), 2U);
ASSERT_NE(TestOption2.Categories.end(),
find_if(TestOption2.Categories,
[&](const llvm::cl::OptionCategory *Cat) {
return Cat == &TestCategory;
}))
<< "Failed to assign Option Category.";
ASSERT_NE(TestOption2.Categories.end(),
find_if(TestOption2.Categories,
[&](const llvm::cl::OptionCategory *Cat) {
return Cat == &cl::GeneralCategory;
}))
<< "Failed to assign General Category.";
cl::OptionCategory AnotherCategory("Additional test Options", "Description");
StackOption<int> TestOption("test-option", cl::cat(TestCategory),
cl::cat(AnotherCategory));
ASSERT_EQ(TestOption.Categories.end(),
find_if(TestOption.Categories,
[&](const llvm::cl::OptionCategory *Cat) {
return Cat == &cl::GeneralCategory;
}))
<< "Failed to remove General Category.";
ASSERT_NE(TestOption.Categories.end(),
find_if(TestOption.Categories,
[&](const llvm::cl::OptionCategory *Cat) {
return Cat == &TestCategory;
}))
<< "Failed to assign Option Category.";
ASSERT_NE(TestOption.Categories.end(),
find_if(TestOption.Categories,
[&](const llvm::cl::OptionCategory *Cat) {
return Cat == &AnotherCategory;
}))
<< "Failed to assign Another Category.";
}
typedef void ParserFunction(StringRef Source, StringSaver &Saver,
SmallVectorImpl<const char *> &NewArgv,
bool MarkEOLs);
void testCommandLineTokenizer(ParserFunction *parse, StringRef Input,
ArrayRef<const char *> Output,
bool MarkEOLs = false) {
SmallVector<const char *, 0> Actual;
BumpPtrAllocator A;
StringSaver Saver(A);
parse(Input, Saver, Actual, MarkEOLs);
EXPECT_EQ(Output.size(), Actual.size());
for (unsigned I = 0, E = Actual.size(); I != E; ++I) {
if (I < Output.size()) {
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);
}
TEST(CommandLineTest, TokenizeWindowsCommandLine1) {
const char Input[] =
R"(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);
}
TEST(CommandLineTest, TokenizeWindowsCommandLine2) {
const char Input[] = "clang -c -DFOO=\"\"\"ABC\"\"\" x.cpp";
const char *const Output[] = { "clang", "-c", "-DFOO=\"ABC\"", "x.cpp"};
testCommandLineTokenizer(cl::TokenizeWindowsCommandLine, Input, Output);
}
TEST(CommandLineTest, TokenizeWindowsCommandLineQuotedLastArgument) {
const char Input1[] = R"(a b c d "")";
const char *const Output1[] = {"a", "b", "c", "d", ""};
testCommandLineTokenizer(cl::TokenizeWindowsCommandLine, Input1, Output1);
const char Input2[] = R"(a b c d ")";
const char *const Output2[] = {"a", "b", "c", "d"};
testCommandLineTokenizer(cl::TokenizeWindowsCommandLine, Input2, Output2);
}
TEST(CommandLineTest, TokenizeAndMarkEOLs) {
// Clang uses EOL marking in response files to support options that consume
// the rest of the arguments on the current line, but do not consume arguments
// from subsequent lines. For example, given these rsp files contents:
// /c /Zi /O2
// /Oy- /link /debug /opt:ref
// /Zc:ThreadsafeStatics-
//
// clang-cl needs to treat "/debug /opt:ref" as linker flags, and everything
// else as compiler flags. The tokenizer inserts nullptr sentinels into the
// output so that clang-cl can find the end of the current line.
const char Input[] = "clang -Xclang foo\n\nfoo\"bar\"baz\n x.cpp\n";
const char *const Output[] = {"clang", "-Xclang", "foo",
nullptr, nullptr, "foobarbaz",
nullptr, "x.cpp", nullptr};
testCommandLineTokenizer(cl::TokenizeWindowsCommandLine, Input, Output,
/*MarkEOLs=*/true);
testCommandLineTokenizer(cl::TokenizeGNUCommandLine, Input, Output,
/*MarkEOLs=*/true);
}
TEST(CommandLineTest, TokenizeConfigFile1) {
const char *Input = "\\";
const char *const Output[] = { "\\" };
testCommandLineTokenizer(cl::tokenizeConfigFile, Input, Output);
}
TEST(CommandLineTest, TokenizeConfigFile2) {
const char *Input = "\\abc";
const char *const Output[] = { "abc" };
testCommandLineTokenizer(cl::tokenizeConfigFile, Input, Output);
}
TEST(CommandLineTest, TokenizeConfigFile3) {
const char *Input = "abc\\";
const char *const Output[] = { "abc\\" };
testCommandLineTokenizer(cl::tokenizeConfigFile, Input, Output);
}
TEST(CommandLineTest, TokenizeConfigFile4) {
const char *Input = "abc\\\n123";
const char *const Output[] = { "abc123" };
testCommandLineTokenizer(cl::tokenizeConfigFile, Input, Output);
}
TEST(CommandLineTest, TokenizeConfigFile5) {
const char *Input = "abc\\\r\n123";
const char *const Output[] = { "abc123" };
testCommandLineTokenizer(cl::tokenizeConfigFile, Input, Output);
}
TEST(CommandLineTest, TokenizeConfigFile6) {
const char *Input = "abc\\\n";
const char *const Output[] = { "abc" };
testCommandLineTokenizer(cl::tokenizeConfigFile, Input, Output);
}
TEST(CommandLineTest, TokenizeConfigFile7) {
const char *Input = "abc\\\r\n";
const char *const Output[] = { "abc" };
testCommandLineTokenizer(cl::tokenizeConfigFile, Input, 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);
}
TEST(CommandLineTest, TokenizeConfigFile11) {
const char *Input = "\\\r\nabc";
const char *const Output[] = { "abc" };
testCommandLineTokenizer(cl::tokenizeConfigFile, Input, 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, DefaultOptions) {
cl::ResetCommandLineParser();
StackOption<std::string> Bar("bar", cl::sub(*cl::AllSubCommands),
cl::DefaultOption);
StackOption<std::string, cl::alias> Bar_Alias(
"b", cl::desc("Alias for -bar"), cl::aliasopt(Bar), cl::DefaultOption);
StackOption<bool> Foo("foo", cl::init(false), cl::sub(*cl::AllSubCommands),
cl::DefaultOption);
StackOption<bool, cl::alias> Foo_Alias("f", cl::desc("Alias for -foo"),
cl::aliasopt(Foo), cl::DefaultOption);
StackSubCommand SC1("sc1", "First Subcommand");
// Override "-b" and change type in sc1 SubCommand.
StackOption<bool> SC1_B("b", cl::sub(SC1), cl::init(false));
StackSubCommand SC2("sc2", "Second subcommand");
// Override "-foo" and change type in sc2 SubCommand. Note that this does not
// affect "-f" alias, which continues to work correctly.
StackOption<std::string> SC2_Foo("foo", cl::sub(SC2));
const char *args0[] = {"prog", "-b", "args0 bar string", "-f"};
EXPECT_TRUE(cl::ParseCommandLineOptions(sizeof(args0) / sizeof(char *), args0,
StringRef(), &llvm::nulls()));
EXPECT_TRUE(Bar == "args0 bar string");
EXPECT_TRUE(Foo);
EXPECT_FALSE(SC1_B);
EXPECT_TRUE(SC2_Foo.empty());
cl::ResetAllOptionOccurrences();
const char *args1[] = {"prog", "sc1", "-b", "-bar", "args1 bar string", "-f"};
EXPECT_TRUE(cl::ParseCommandLineOptions(sizeof(args1) / sizeof(char *), args1,
StringRef(), &llvm::nulls()));
EXPECT_TRUE(Bar == "args1 bar string");
EXPECT_TRUE(Foo);
EXPECT_TRUE(SC1_B);
EXPECT_TRUE(SC2_Foo.empty());
for (auto *S : cl::getRegisteredSubcommands()) {
if (*S) {
EXPECT_EQ("sc1", S->getName());
}
}
cl::ResetAllOptionOccurrences();
const char *args2[] = {"prog", "sc2", "-b", "args2 bar string",
"-f", "-foo", "foo string"};
EXPECT_TRUE(cl::ParseCommandLineOptions(sizeof(args2) / sizeof(char *), args2,
StringRef(), &llvm::nulls()));
EXPECT_TRUE(Bar == "args2 bar string");
EXPECT_TRUE(Foo);
EXPECT_FALSE(SC1_B);
EXPECT_TRUE(SC2_Foo == "foo string");
for (auto *S : cl::getRegisteredSubcommands()) {
if (*S) {
EXPECT_EQ("sc2", S->getName());
}
}
cl::ResetCommandLineParser();
}
TEST(CommandLineTest, ArgumentLimit) {
std::string args(32 * 4096, 'a');
EXPECT_FALSE(llvm::sys::commandLineFitsWithinSystemLimits("cl", args.data()));
std::string args2(256, 'a');
EXPECT_TRUE(llvm::sys::commandLineFitsWithinSystemLimits("cl", args2.data()));
if (Triple(sys::getProcessTriple()).isOSWindows()) {
// We use 32000 as a limit for command line length. Program name ('cl'),
// separating spaces and termination null character occupy 5 symbols.
std::string long_arg(32000 - 5, 'b');
EXPECT_TRUE(
llvm::sys::commandLineFitsWithinSystemLimits("cl", long_arg.data()));
long_arg += 'b';
EXPECT_FALSE(
llvm::sys::commandLineFitsWithinSystemLimits("cl", long_arg.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.
TempFile ResponseFile("resp-", ".txt",
"-top-level\npath\\dir\\file1\npath/dir/file2",
/*Unique*/ true);
llvm::SmallString<128> RspOpt;
RspOpt.append(1, '@');
RspOpt.append(ResponseFile.path());
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");
}
TEST(CommandLineTest, ResponseFiles) {
vfs::InMemoryFileSystem FS;
#ifdef _WIN32
const char *TestRoot = "C:\\";
#else
const char *TestRoot = "/";
#endif
FS.setCurrentWorkingDirectory(TestRoot);
// Create included response file of first level.
llvm::StringRef IncludedFileName = "resp1";
FS.addFile(IncludedFileName, 0,
llvm::MemoryBuffer::getMemBuffer("-option_1 -option_2\n"
"@incdir/resp2\n"
"-option_3=abcd\n"
"@incdir/resp3\n"
"-option_4=efjk\n"));
// Directory for included file.
llvm::StringRef IncDir = "incdir";
// Create included response file of second level.
llvm::SmallString<128> IncludedFileName2;
llvm::sys::path::append(IncludedFileName2, IncDir, "resp2");
FS.addFile(IncludedFileName2, 0,
MemoryBuffer::getMemBuffer("-option_21 -option_22\n"
"-option_23=abcd\n"));
// Create second included response file of second level.
llvm::SmallString<128> IncludedFileName3;
llvm::sys::path::append(IncludedFileName3, IncDir, "resp3");
FS.addFile(IncludedFileName3, 0,
MemoryBuffer::getMemBuffer("-option_31 -option_32\n"
"-option_33=abcd\n"));
// Prepare 'file' with reference to response file.
SmallString<128> IncRef;
IncRef.append(1, '@');
IncRef.append(IncludedFileName);
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);
ASSERT_TRUE(llvm::cl::ExpandResponseFiles(
Saver, llvm::cl::TokenizeGNUCommandLine, Argv, false, true,
/*CurrentDir=*/StringRef(TestRoot), FS));
EXPECT_THAT(Argv, testing::Pointwise(
StringEquality(),
{"test/test", "-flag_1", "-option_1", "-option_2",
"-option_21", "-option_22", "-option_23=abcd",
"-option_3=abcd", "-option_31", "-option_32",
"-option_33=abcd", "-option_4=efjk", "-flag_2"}));
}
TEST(CommandLineTest, RecursiveResponseFiles) {
vfs::InMemoryFileSystem FS;
#ifdef _WIN32
const char *TestRoot = "C:\\";
#else
const char *TestRoot = "/";
#endif
FS.setCurrentWorkingDirectory(TestRoot);
StringRef SelfFilePath = "self.rsp";
std::string SelfFileRef = ("@" + SelfFilePath).str();
StringRef NestedFilePath = "nested.rsp";
std::string NestedFileRef = ("@" + NestedFilePath).str();
StringRef FlagFilePath = "flag.rsp";
std::string FlagFileRef = ("@" + FlagFilePath).str();
std::string SelfFileContents;
raw_string_ostream SelfFile(SelfFileContents);
SelfFile << "-option_1\n";
SelfFile << FlagFileRef << "\n";
SelfFile << NestedFileRef << "\n";
SelfFile << SelfFileRef << "\n";
FS.addFile(SelfFilePath, 0, MemoryBuffer::getMemBuffer(SelfFile.str()));
std::string NestedFileContents;
raw_string_ostream NestedFile(NestedFileContents);
NestedFile << "-option_2\n";
NestedFile << FlagFileRef << "\n";
NestedFile << SelfFileRef << "\n";
NestedFile << NestedFileRef << "\n";
FS.addFile(NestedFilePath, 0, MemoryBuffer::getMemBuffer(NestedFile.str()));
std::string FlagFileContents;
raw_string_ostream FlagFile(FlagFileContents);
FlagFile << "-option_x\n";
FS.addFile(FlagFilePath, 0, MemoryBuffer::getMemBuffer(FlagFile.str()));
// Ensure:
// Recursive expansion terminates
// Recursive files never expand
// Non-recursive repeats are allowed
SmallVector<const char *, 4> Argv = {"test/test", SelfFileRef.c_str(),
"-option_3"};
BumpPtrAllocator A;
StringSaver Saver(A);
#ifdef _WIN32
cl::TokenizerCallback Tokenizer = cl::TokenizeWindowsCommandLine;
#else
cl::TokenizerCallback Tokenizer = cl::TokenizeGNUCommandLine;
#endif
ASSERT_FALSE(cl::ExpandResponseFiles(Saver, Tokenizer, Argv, false, false,
/*CurrentDir=*/llvm::StringRef(TestRoot),
FS));
EXPECT_THAT(Argv,
testing::Pointwise(StringEquality(),
{"test/test", "-option_1", "-option_x",
"-option_2", "-option_x", SelfFileRef.c_str(),
NestedFileRef.c_str(), SelfFileRef.c_str(),
"-option_3"}));
}
TEST(CommandLineTest, ResponseFilesAtArguments) {
vfs::InMemoryFileSystem FS;
#ifdef _WIN32
const char *TestRoot = "C:\\";
#else
const char *TestRoot = "/";
#endif
FS.setCurrentWorkingDirectory(TestRoot);
StringRef ResponseFilePath = "test.rsp";
std::string ResponseFileContents;
raw_string_ostream ResponseFile(ResponseFileContents);
ResponseFile << "-foo" << "\n";
ResponseFile << "-bar" << "\n";
FS.addFile(ResponseFilePath, 0,
MemoryBuffer::getMemBuffer(ResponseFile.str()));
// Ensure we expand rsp files after lots of non-rsp arguments starting with @.
constexpr size_t NON_RSP_AT_ARGS = 64;
SmallVector<const char *, 4> Argv = {"test/test"};
Argv.append(NON_RSP_AT_ARGS, "@non_rsp_at_arg");
std::string ResponseFileRef = ("@" + ResponseFilePath).str();
Argv.push_back(ResponseFileRef.c_str());
BumpPtrAllocator A;
StringSaver Saver(A);
ASSERT_FALSE(cl::ExpandResponseFiles(Saver, cl::TokenizeGNUCommandLine, Argv,
false, false,
/*CurrentDir=*/StringRef(TestRoot), FS));
// ASSERT instead of EXPECT to prevent potential out-of-bounds access.
ASSERT_EQ(Argv.size(), 1 + NON_RSP_AT_ARGS + 2);
size_t i = 0;
EXPECT_STREQ(Argv[i++], "test/test");
for (; i < 1 + NON_RSP_AT_ARGS; ++i)
EXPECT_STREQ(Argv[i], "@non_rsp_at_arg");
EXPECT_STREQ(Argv[i++], "-foo");
EXPECT_STREQ(Argv[i++], "-bar");
}
TEST(CommandLineTest, ResponseFileRelativePath) {
vfs::InMemoryFileSystem FS;
#ifdef _WIN32
const char *TestRoot = "C:\\";
#else
const char *TestRoot = "//net";
#endif
FS.setCurrentWorkingDirectory(TestRoot);
StringRef OuterFile = "dir/outer.rsp";
StringRef OuterFileContents = "@inner.rsp";
FS.addFile(OuterFile, 0, MemoryBuffer::getMemBuffer(OuterFileContents));
StringRef InnerFile = "dir/inner.rsp";
StringRef InnerFileContents = "-flag";
FS.addFile(InnerFile, 0, MemoryBuffer::getMemBuffer(InnerFileContents));
SmallVector<const char *, 2> Argv = {"test/test", "@dir/outer.rsp"};
BumpPtrAllocator A;
StringSaver Saver(A);
ASSERT_TRUE(cl::ExpandResponseFiles(Saver, cl::TokenizeGNUCommandLine, Argv,
false, true,
/*CurrentDir=*/StringRef(TestRoot), FS));
EXPECT_THAT(Argv,
testing::Pointwise(StringEquality(), {"test/test", "-flag"}));
}
TEST(CommandLineTest, ResponseFileEOLs) {
vfs::InMemoryFileSystem FS;
#ifdef _WIN32
const char *TestRoot = "C:\\";
#else
const char *TestRoot = "//net";
#endif
FS.setCurrentWorkingDirectory(TestRoot);
FS.addFile("eols.rsp", 0,
MemoryBuffer::getMemBuffer("-Xclang -Wno-whatever\n input.cpp"));
SmallVector<const char *, 2> Argv = {"clang", "@eols.rsp"};
BumpPtrAllocator A;
StringSaver Saver(A);
ASSERT_TRUE(cl::ExpandResponseFiles(Saver, cl::TokenizeWindowsCommandLine,
Argv, true, true,
/*CurrentDir=*/StringRef(TestRoot), FS));
const char *Expected[] = {"clang", "-Xclang", "-Wno-whatever", nullptr,
"input.cpp"};
ASSERT_EQ(array_lengthof(Expected), Argv.size());
for (size_t I = 0, E = array_lengthof(Expected); I < E; ++I) {
if (Expected[I] == nullptr) {
ASSERT_EQ(Argv[I], nullptr);
} else {
ASSERT_STREQ(Expected[I], Argv[I]);
}
}
}
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;
TempDir TestDir("unittest", /*Unique*/ true);
llvm::SmallString<128> TestCfg;
llvm::sys::path::append(TestCfg, TestDir.path(), "foo");
TempFile ConfigFile(TestCfg, "",
"# Comment\n"
"-option_1\n"
"@subconfig\n"
"-option_3=abcd\n"
"-option_4=\\\n"
"cdef\n");
llvm::SmallString<128> TestCfg2;
llvm::sys::path::append(TestCfg2, TestDir.path(), "subconfig");
TempFile ConfigFile2(TestCfg2, "",
"-option_2\n"
"\n"
" # comment\n");
// 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;
std::error_code EC = llvm::sys::fs::current_path(CurrDir);
EXPECT_TRUE(!EC);
EXPECT_TRUE(StringRef(CurrDir) != TestDir.path());
llvm::BumpPtrAllocator A;
llvm::StringSaver Saver(A);
bool Result = llvm::cl::readConfigFile(ConfigFile.path(), 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");
}
TEST(CommandLineTest, PositionalEatArgsError) {
cl::ResetCommandLineParser();
StackOption<std::string, cl::list<std::string>> PosEatArgs(
"positional-eat-args", cl::Positional, cl::desc("<arguments>..."),
cl::ZeroOrMore, cl::PositionalEatsArgs);
StackOption<std::string, cl::list<std::string>> PosEatArgs2(
"positional-eat-args2", cl::Positional, cl::desc("Some strings"),
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"};
const char *args4[] = {"prog", "-positional-eat-args",
"-foo", "-positional-eat-args2",
"-bar", "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()); Errs.clear();
cl::ResetAllOptionOccurrences();
EXPECT_TRUE(cl::ParseCommandLineOptions(6, args4, StringRef(), &OS)); OS.flush();
EXPECT_TRUE(PosEatArgs.size() == 1);
EXPECT_TRUE(PosEatArgs2.size() == 2);
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_insensitive("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) {
outs().flush(); // flush any output from previous tests
AutoDeleteFile File;
{
OutputRedirector Stdout(fileno(stdout));
if (!Stdout.Valid)
return "";
File.FilePath = Stdout.FilePath;
StackOption<OptionValue> TestOption(Opt, cl::desc(HelpText),
OptionAttributes...);
printOptionInfo(TestOption, 26);
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
}
TEST_F(PrintOptionInfoTest, PrintOptionInfoMultilineValueDescription) {
std::string Output =
runTest(cl::ValueRequired,
cl::values(clEnumValN(OptionValue::Val, "v1",
"This is the first enum value\n"
"which has a really long description\n"
"thus it is multi-line."),
clEnumValN(OptionValue::Val, "",
"This is an unnamed enum value option\n"
"Should be indented as well")));
// clang-format off
EXPECT_EQ(Output,
(" --" + Opt + "=<value> - " + HelpText + "\n"
" =v1 - This is the first enum value\n"
" which has a really long description\n"
" thus it is multi-line.\n"
" =<empty> - This is an unnamed enum value option\n"
" Should be indented as well\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();
}
TEST(CommandLineTest, LongOptions) {
cl::ResetCommandLineParser();
StackOption<bool> OptA("a", cl::desc("Some flag"));
StackOption<bool> OptBLong("long-flag", cl::desc("Some long flag"));
StackOption<bool, cl::alias> OptB("b", cl::desc("Alias to --long-flag"),
cl::aliasopt(OptBLong));
StackOption<std::string> OptAB("ab", cl::desc("Another long option"));
std::string Errs;
raw_string_ostream OS(Errs);
const char *args1[] = {"prog", "-a", "-ab", "val1"};
const char *args2[] = {"prog", "-a", "--ab", "val1"};
const char *args3[] = {"prog", "-ab", "--ab", "val1"};
//
// The following tests treat `-` and `--` the same, and always match the
// longest string.
//
EXPECT_TRUE(
cl::ParseCommandLineOptions(4, args1, StringRef(), &OS)); OS.flush();
EXPECT_TRUE(OptA);
EXPECT_FALSE(OptBLong);
EXPECT_STREQ("val1", OptAB.c_str());
EXPECT_TRUE(Errs.empty()); Errs.clear();
cl::ResetAllOptionOccurrences();
EXPECT_TRUE(
cl::ParseCommandLineOptions(4, args2, StringRef(), &OS)); OS.flush();
EXPECT_TRUE(OptA);
EXPECT_FALSE(OptBLong);
EXPECT_STREQ("val1", OptAB.c_str());
EXPECT_TRUE(Errs.empty()); Errs.clear();
cl::ResetAllOptionOccurrences();
// Fails because `-ab` and `--ab` are treated the same and appear more than
// once. Also, `val1` is unexpected.
EXPECT_FALSE(
cl::ParseCommandLineOptions(4, args3, StringRef(), &OS)); OS.flush();
outs()<< Errs << "\n";
EXPECT_FALSE(Errs.empty()); Errs.clear();
cl::ResetAllOptionOccurrences();
//
// The following tests treat `-` and `--` differently, with `-` for short, and
// `--` for long options.
//
// Fails because `-ab` is treated as `-a -b`, so `-a` is seen twice, and
// `val1` is unexpected.
EXPECT_FALSE(cl::ParseCommandLineOptions(4, args1, StringRef(),
&OS, nullptr, true)); OS.flush();
EXPECT_FALSE(Errs.empty()); Errs.clear();
cl::ResetAllOptionOccurrences();
// Works because `-a` is treated differently than `--ab`.
EXPECT_TRUE(cl::ParseCommandLineOptions(4, args2, StringRef(),
&OS, nullptr, true)); OS.flush();
EXPECT_TRUE(Errs.empty()); Errs.clear();
cl::ResetAllOptionOccurrences();
// Works because `-ab` is treated as `-a -b`, and `--ab` is a long option.
EXPECT_TRUE(cl::ParseCommandLineOptions(4, args3, StringRef(),
&OS, nullptr, true));
EXPECT_TRUE(OptA);
EXPECT_TRUE(OptBLong);
EXPECT_STREQ("val1", OptAB.c_str());
OS.flush();
EXPECT_TRUE(Errs.empty()); Errs.clear();
cl::ResetAllOptionOccurrences();
}
TEST(CommandLineTest, OptionErrorMessage) {
// When there is an error, we expect some error message like:
// prog: for the -a option: [...]
//
// Test whether the "for the -a option"-part is correctly formatted.
cl::ResetCommandLineParser();
StackOption<bool> OptA("a", cl::desc("Some option"));
StackOption<bool> OptLong("long", cl::desc("Some long option"));
std::string Errs;
raw_string_ostream OS(Errs);
OptA.error("custom error", OS);
OS.flush();
EXPECT_FALSE(Errs.find("for the -a option:") == std::string::npos);
Errs.clear();
OptLong.error("custom error", OS);
OS.flush();
EXPECT_FALSE(Errs.find("for the --long option:") == std::string::npos);
Errs.clear();
cl::ResetAllOptionOccurrences();
}
TEST(CommandLineTest, OptionErrorMessageSuggest) {
// When there is an error, and the edit-distance is not very large,
// we expect some error message like:
// prog: did you mean '--option'?
//
// Test whether this message is well-formatted.
cl::ResetCommandLineParser();
StackOption<bool> OptLong("aluminium", cl::desc("Some long option"));
const char *args[] = {"prog", "--aluminum"};
std::string Errs;
raw_string_ostream OS(Errs);
EXPECT_FALSE(cl::ParseCommandLineOptions(2, args, StringRef(), &OS));
OS.flush();
EXPECT_FALSE(Errs.find("prog: Did you mean '--aluminium'?\n") ==
std::string::npos);
Errs.clear();
cl::ResetAllOptionOccurrences();
}
TEST(CommandLineTest, OptionErrorMessageSuggestNoHidden) {
// We expect that 'really hidden' option do not show up in option
// suggestions.
cl::ResetCommandLineParser();
StackOption<bool> OptLong("aluminium", cl::desc("Some long option"));
StackOption<bool> OptLong2("aluminum", cl::desc("Bad option"),
cl::ReallyHidden);
const char *args[] = {"prog", "--alumnum"};
std::string Errs;
raw_string_ostream OS(Errs);
EXPECT_FALSE(cl::ParseCommandLineOptions(2, args, StringRef(), &OS));
OS.flush();
EXPECT_FALSE(Errs.find("prog: Did you mean '--aluminium'?\n") ==
std::string::npos);
Errs.clear();
cl::ResetAllOptionOccurrences();
}
TEST(CommandLineTest, Callback) {
cl::ResetCommandLineParser();
StackOption<bool> OptA("a", cl::desc("option a"));
StackOption<bool> OptB(
"b", cl::desc("option b -- This option turns on option a"),
cl::callback([&](const bool &) { OptA = true; }));
StackOption<bool> OptC(
"c", cl::desc("option c -- This option turns on options a and b"),
cl::callback([&](const bool &) { OptB = true; }));
StackOption<std::string, cl::list<std::string>> List(
"list",
cl::desc("option list -- This option turns on options a, b, and c when "
"'foo' is included in list"),
cl::CommaSeparated,
cl::callback([&](const std::string &Str) {
if (Str == "foo")
OptC = true;
}));
const char *args1[] = {"prog", "-a"};
EXPECT_TRUE(cl::ParseCommandLineOptions(2, args1));
EXPECT_TRUE(OptA);
EXPECT_FALSE(OptB);
EXPECT_FALSE(OptC);
EXPECT_TRUE(List.size() == 0);
cl::ResetAllOptionOccurrences();
const char *args2[] = {"prog", "-b"};
EXPECT_TRUE(cl::ParseCommandLineOptions(2, args2));
EXPECT_TRUE(OptA);
EXPECT_TRUE(OptB);
EXPECT_FALSE(OptC);
EXPECT_TRUE(List.size() == 0);
cl::ResetAllOptionOccurrences();
const char *args3[] = {"prog", "-c"};
EXPECT_TRUE(cl::ParseCommandLineOptions(2, args3));
EXPECT_TRUE(OptA);
EXPECT_TRUE(OptB);
EXPECT_TRUE(OptC);
EXPECT_TRUE(List.size() == 0);
cl::ResetAllOptionOccurrences();
const char *args4[] = {"prog", "--list=foo,bar"};
EXPECT_TRUE(cl::ParseCommandLineOptions(2, args4));
EXPECT_TRUE(OptA);
EXPECT_TRUE(OptB);
EXPECT_TRUE(OptC);
EXPECT_TRUE(List.size() == 2);
cl::ResetAllOptionOccurrences();
const char *args5[] = {"prog", "--list=bar"};
EXPECT_TRUE(cl::ParseCommandLineOptions(2, args5));
EXPECT_FALSE(OptA);
EXPECT_FALSE(OptB);
EXPECT_FALSE(OptC);
EXPECT_TRUE(List.size() == 1);
cl::ResetAllOptionOccurrences();
}
enum Enum { Val1, Val2 };
static cl::bits<Enum> ExampleBits(
cl::desc("An example cl::bits to ensure it compiles"),
cl::values(
clEnumValN(Val1, "bits-val1", "The Val1 value"),
clEnumValN(Val1, "bits-val2", "The Val2 value")));
TEST(CommandLineTest, ConsumeAfterOnePositional) {
cl::ResetCommandLineParser();
// input [args]
StackOption<std::string, cl::opt<std::string>> Input(cl::Positional,
cl::Required);
StackOption<std::string, cl::list<std::string>> ExtraArgs(cl::ConsumeAfter);
const char *Args[] = {"prog", "input", "arg1", "arg2"};
std::string Errs;
raw_string_ostream OS(Errs);
EXPECT_TRUE(cl::ParseCommandLineOptions(4, Args, StringRef(), &OS));
OS.flush();
EXPECT_EQ("input", Input);
EXPECT_TRUE(ExtraArgs.size() == 2);
EXPECT_TRUE(ExtraArgs[0] == "arg1");
EXPECT_TRUE(ExtraArgs[1] == "arg2");
EXPECT_TRUE(Errs.empty());
}
TEST(CommandLineTest, ConsumeAfterTwoPositionals) {
cl::ResetCommandLineParser();
// input1 input2 [args]
StackOption<std::string, cl::opt<std::string>> Input1(cl::Positional,
cl::Required);
StackOption<std::string, cl::opt<std::string>> Input2(cl::Positional,
cl::Required);
StackOption<std::string, cl::list<std::string>> ExtraArgs(cl::ConsumeAfter);
const char *Args[] = {"prog", "input1", "input2", "arg1", "arg2"};
std::string Errs;
raw_string_ostream OS(Errs);
EXPECT_TRUE(cl::ParseCommandLineOptions(5, Args, StringRef(), &OS));
OS.flush();
EXPECT_EQ("input1", Input1);
EXPECT_EQ("input2", Input2);
EXPECT_TRUE(ExtraArgs.size() == 2);
EXPECT_TRUE(ExtraArgs[0] == "arg1");
EXPECT_TRUE(ExtraArgs[1] == "arg2");
EXPECT_TRUE(Errs.empty());
}
} // anonymous namespace
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