HelpTest.cpp
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#ifdef CLI_SINGLE_FILE
#include "CLI11.hpp"
#else
#include "CLI/CLI.hpp"
#endif
#include "gtest/gtest.h"
#include "gmock/gmock.h"
#include <fstream>
using ::testing::HasSubstr;
using ::testing::Not;
TEST(THelp, Basic) {
CLI::App app{"My prog"};
std::string help = app.help();
EXPECT_THAT(help, HasSubstr("My prog"));
EXPECT_THAT(help, HasSubstr("-h,--help"));
EXPECT_THAT(help, HasSubstr("Options:"));
EXPECT_THAT(help, HasSubstr("Usage:"));
}
TEST(THelp, OptionalPositional) {
CLI::App app{"My prog"};
std::string x;
app.add_option("something", x, "My option here");
std::string help = app.help();
EXPECT_THAT(help, HasSubstr("My prog"));
EXPECT_THAT(help, HasSubstr("-h,--help"));
EXPECT_THAT(help, HasSubstr("Options:"));
EXPECT_THAT(help, HasSubstr("Positionals:"));
EXPECT_THAT(help, HasSubstr("something TEXT"));
EXPECT_THAT(help, HasSubstr("My option here"));
EXPECT_THAT(help, HasSubstr("Usage: program [OPTIONS] [something]"));
}
TEST(THelp, Hidden) {
CLI::App app{"My prog"};
std::string x;
app.add_option("something", x, "My option here")
->group("Hidden");
std::string y;
app.add_option("--another", y)
->group("Hidden");
std::string help = app.help();
EXPECT_THAT(help, HasSubstr("My prog"));
EXPECT_THAT(help, HasSubstr("-h,--help"));
EXPECT_THAT(help, HasSubstr("Options:"));
EXPECT_THAT(help, HasSubstr("[something]"));
EXPECT_THAT(help, Not(HasSubstr("something ")));
EXPECT_THAT(help, Not(HasSubstr("another")));
}
TEST(THelp, OptionalPositionalAndOptions) {
CLI::App app{"My prog"};
app.add_flag("-q,--quick");
std::string x;
app.add_option("something", x, "My option here");
std::string help = app.help();
EXPECT_THAT(help, HasSubstr("My prog"));
EXPECT_THAT(help, HasSubstr("-h,--help"));
EXPECT_THAT(help, HasSubstr("Options:"));
EXPECT_THAT(help, HasSubstr("Usage: program [OPTIONS] [something]"));
}
TEST(THelp, RequiredPositionalAndOptions) {
CLI::App app{"My prog"};
app.add_flag("-q,--quick");
std::string x;
app.add_option("something", x, "My option here")
->required();
std::string help = app.help();
EXPECT_THAT(help, HasSubstr("My prog"));
EXPECT_THAT(help, HasSubstr("-h,--help"));
EXPECT_THAT(help, HasSubstr("Options:"));
EXPECT_THAT(help, HasSubstr("Positionals:"));
EXPECT_THAT(help, HasSubstr("Usage: program [OPTIONS] something"));
}
TEST(THelp, EnvName) {
CLI::App app{"My prog"};
std::string input;
app.add_option("--something", input)->envname("SOME_ENV");
std::string help = app.help();
EXPECT_THAT(help, HasSubstr("SOME_ENV"));
}
TEST(THelp, Requires) {
CLI::App app{"My prog"};
CLI::Option* op1 = app.add_flag("--op1");
app.add_flag("--op2")->requires(op1);
std::string help = app.help();
EXPECT_THAT(help, HasSubstr("Requires: --op1"));
}
TEST(THelp, Excludes) {
CLI::App app{"My prog"};
CLI::Option* op1 = app.add_flag("--op1");
app.add_flag("--op2")->excludes(op1);
std::string help = app.help();
EXPECT_THAT(help, HasSubstr("Excludes: --op1"));
}
TEST(THelp, Subcom) {
CLI::App app{"My prog"};
app.add_subcommand("sub1");
app.add_subcommand("sub2");
std::string help = app.help();
EXPECT_THAT(help, HasSubstr("Usage: program [OPTIONS] [SUBCOMMAND]"));
app.require_subcommand();
help = app.help();
EXPECT_THAT(help, HasSubstr("Usage: program [OPTIONS] SUBCOMMAND"));
}