#include <iostream>
#include <string>
#include "gflags/gflags.h"
#include "gtest/gtest.h"
DEFINE_bool(verbose, false, "Display program name before message");
DEFINE_string(message, "Hello world!", "Message to print");
static bool IsNonEmptyMessage(const char *flagname, const std::string &value) {
return value[0] != '\0';
}
DEFINE_validator(message, &IsNonEmptyMessage);
namespace third_party {
namespace gflags_test {
TEST(GflagsTest, ParseAndPrint) {
gflags::SetUsageMessage("some usage message");
gflags::SetVersionString("1.0.0");
int argc = 1;
char program_name[] = "gflags_test";
char **argv = new char *[2];
argv[0] = program_name;
argv[1] = NULL;
gflags::ParseCommandLineFlags(&argc, reinterpret_cast<char ***>(&argv), true);
EXPECT_EQ("gflags_test", std::string(gflags::ProgramInvocationShortName()));
EXPECT_EQ("Hello world!", FLAGS_message);
gflags::ShutDownCommandLineFlags();
}
} // namespace gflags_test
} // namespace third_party