//
//===----------------------------------------------------------------------===//
+#include "llvm/ADT/STLExtras.h"
+#include "llvm/Config/config.h"
#include "llvm/Support/CommandLine.h"
-
#include "gtest/gtest.h"
-
-#include <string>
#include <stdlib.h>
+#include <string>
using namespace llvm;
TempEnvVar(const char *name, const char *value)
: name(name) {
const char *old_value = getenv(name);
- EXPECT_EQ(NULL, old_value) << old_value;
+ 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);
+#endif
}
private:
const char *const name;
};
+template <typename T>
+class StackOption : public cl::opt<T> {
+ typedef cl::opt<T> Base;
+public:
+ // One option...
+ template<class M0t>
+ explicit StackOption(const M0t &M0) : Base(M0) {}
+
+ // Two options...
+ template<class M0t, class M1t>
+ StackOption(const M0t &M0, const M1t &M1) : Base(M0, M1) {}
+
+ // Three options...
+ template<class M0t, class M1t, class M2t>
+ StackOption(const M0t &M0, const M1t &M1, const M2t &M2) : Base(M0, M1, M2) {}
+
+ // Four options...
+ template<class M0t, class M1t, class M2t, class M3t>
+ StackOption(const M0t &M0, const M1t &M1, const M2t &M2, const M3t &M3)
+ : Base(M0, M1, M2, M3) {}
+
+ ~StackOption() {
+ this->removeArgument();
+ }
+};
+
+
+cl::OptionCategory TestCategory("Test Options", "Description");
+cl::opt<int> TestOption("test-option", cl::desc("old description"));
+TEST(CommandLineTest, ModifyExisitingOption) {
+ const char Description[] = "New description";
+ const char ArgString[] = "new-test-option";
+ const char ValueString[] = "Integer";
+
+ StringMap<cl::Option*> Map;
+ cl::getRegisteredOptions(Map);
+
+ 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, Description) <<
+ "Changing option description failed.";
+
+ Retrieved->setArgStr(ArgString);
+ ASSERT_STREQ(ArgString, Retrieved->ArgStr) <<
+ "Failed to modify option's Argument string.";
+
+ Retrieved->setValueStr(ValueString);
+ ASSERT_STREQ(Retrieved->ValueStr, 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");
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.";
+}
+
+class StrDupSaver : public cl::StringSaver {
+ const char *SaveString(const char *Str) override {
+ return strdup(Str);
+ }
+};
+
+typedef void ParserFunction(StringRef Source, llvm::cl::StringSaver &Saver,
+ SmallVectorImpl<const char *> &NewArgv);
+
+
+void testCommandLineTokenizer(ParserFunction *parse, const char *Input,
+ const char *const Output[], size_t OutputSize) {
+ SmallVector<const char *, 0> Actual;
+ StrDupSaver Saver;
+ parse(Input, Saver, Actual);
+ EXPECT_EQ(OutputSize, Actual.size());
+ for (unsigned I = 0, E = Actual.size(); I != E; ++I) {
+ if (I < OutputSize)
+ EXPECT_STREQ(Output[I], Actual[I]);
+ free(const_cast<char *>(Actual[I]));
+ }
+}
+
+TEST(CommandLineTest, TokenizeGNUCommandLine) {
+ const char *Input = "foo\\ bar \"foo bar\" \'foo bar\' 'foo\\\\bar' "
+ "foo\"bar\"baz C:\\src\\foo.cpp \"C:\\src\\foo.cpp\"";
+ const char *const Output[] = { "foo bar", "foo bar", "foo bar", "foo\\bar",
+ "foobarbaz", "C:\\src\\foo.cpp",
+ "C:\\src\\foo.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, 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();
+ }
+}
+
} // anonymous namespace