FormatterTest.cpp
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#ifdef CLI11_SINGLE_FILE
#include "CLI11.hpp"
#else
#include "CLI/CLI.hpp"
#endif
#include "gmock/gmock.h"
#include "gtest/gtest.h"
#include <fstream>
using ::testing::HasSubstr;
using ::testing::Not;
class SimpleFormatter : public CLI::FormatterBase {
public:
SimpleFormatter() : FormatterBase() {}
std::string make_help(const CLI::App *, std::string, CLI::AppFormatMode) const override {
return "This is really simple";
}
};
TEST(Formatter, Nothing) {
CLI::App app{"My prog"};
app.formatter(std::make_shared<SimpleFormatter>());
std::string help = app.help();
EXPECT_EQ(help, "This is really simple");
}
TEST(Formatter, NothingLambda) {
CLI::App app{"My prog"};
app.formatter_fn(
[](const CLI::App *, std::string, CLI::AppFormatMode) { return std::string("This is really simple"); });
std::string help = app.help();
EXPECT_EQ(help, "This is really simple");
}
TEST(Formatter, OptCustomize) {
CLI::App app{"My prog"};
auto optfmt = std::make_shared<CLI::Formatter>();
optfmt->column_width(25);
optfmt->label("REQUIRED", "(MUST HAVE)");
app.formatter(optfmt);
int v;
app.add_option("--opt", v, "Something")->required();
std::string help = app.help();
EXPECT_THAT(help, HasSubstr("(MUST HAVE)"));
EXPECT_EQ(help,
"My prog\n"
"Usage: [OPTIONS]\n\n"
"Options:\n"
" -h,--help Print this help message and exit\n"
" --opt INT (MUST HAVE) Something\n");
}
TEST(Formatter, OptCustomizeSimple) {
CLI::App app{"My prog"};
app.get_formatter()->column_width(25);
app.get_formatter()->label("REQUIRED", "(MUST HAVE)");
int v;
app.add_option("--opt", v, "Something")->required();
std::string help = app.help();
EXPECT_THAT(help, HasSubstr("(MUST HAVE)"));
EXPECT_EQ(help,
"My prog\n"
"Usage: [OPTIONS]\n\n"
"Options:\n"
" -h,--help Print this help message and exit\n"
" --opt INT (MUST HAVE) Something\n");
}
TEST(Formatter, FalseFlagExample) {
CLI::App app{"My prog"};
app.get_formatter()->column_width(25);
app.get_formatter()->label("REQUIRED", "(MUST HAVE)");
int v;
app.add_flag("--opt,!--no_opt", v, "Something");
bool flag;
app.add_flag("!-O,--opt2,--no_opt2{false}", flag, "Something else");
std::string help = app.help();
EXPECT_THAT(help, HasSubstr("--no_opt{false}"));
EXPECT_THAT(help, HasSubstr("--no_opt2{false}"));
EXPECT_THAT(help, HasSubstr("-O{false}"));
}
TEST(Formatter, AppCustomize) {
CLI::App app{"My prog"};
app.add_subcommand("subcom1", "This");
auto appfmt = std::make_shared<CLI::Formatter>();
appfmt->column_width(20);
appfmt->label("Usage", "Run");
app.formatter(appfmt);
app.add_subcommand("subcom2", "This");
std::string help = app.help();
EXPECT_EQ(help,
"My prog\n"
"Run: [OPTIONS] [SUBCOMMAND]\n\n"
"Options:\n"
" -h,--help Print this help message and exit\n\n"
"Subcommands:\n"
" subcom1 This\n"
" subcom2 This\n");
}
TEST(Formatter, AppCustomizeSimple) {
CLI::App app{"My prog"};
app.add_subcommand("subcom1", "This");
app.get_formatter()->column_width(20);
app.get_formatter()->label("Usage", "Run");
app.add_subcommand("subcom2", "This");
std::string help = app.help();
EXPECT_EQ(help,
"My prog\n"
"Run: [OPTIONS] [SUBCOMMAND]\n\n"
"Options:\n"
" -h,--help Print this help message and exit\n\n"
"Subcommands:\n"
" subcom1 This\n"
" subcom2 This\n");
}
TEST(Formatter, AllSub) {
CLI::App app{"My prog"};
CLI::App *sub = app.add_subcommand("subcom", "This");
sub->add_flag("--insub", "MyFlag");
std::string help = app.help("", CLI::AppFormatMode::All);
EXPECT_THAT(help, HasSubstr("--insub"));
EXPECT_THAT(help, HasSubstr("subcom"));
}
TEST(Formatter, AllSubRequired) {
CLI::App app{"My prog"};
CLI::App *sub = app.add_subcommand("subcom", "This");
sub->add_flag("--insub", "MyFlag");
sub->required();
std::string help = app.help("", CLI::AppFormatMode::All);
EXPECT_THAT(help, HasSubstr("--insub"));
EXPECT_THAT(help, HasSubstr("subcom"));
EXPECT_THAT(help, HasSubstr("REQUIRED"));
}
TEST(Formatter, NamelessSub) {
CLI::App app{"My prog"};
CLI::App *sub = app.add_subcommand("", "This subcommand");
sub->add_flag("--insub", "MyFlag");
std::string help = app.help("", CLI::AppFormatMode::Normal);
EXPECT_THAT(help, HasSubstr("--insub"));
EXPECT_THAT(help, HasSubstr("This subcommand"));
}
TEST(Formatter, NamelessSubInGroup) {
CLI::App app{"My prog"};
CLI::App *sub = app.add_subcommand("", "This subcommand");
CLI::App *sub2 = app.add_subcommand("sub2", "subcommand2");
sub->add_flag("--insub", "MyFlag");
int val;
sub2->add_option("pos", val, "positional");
sub->group("group1");
sub2->group("group1");
std::string help = app.help("", CLI::AppFormatMode::Normal);
EXPECT_THAT(help, HasSubstr("--insub"));
EXPECT_THAT(help, HasSubstr("This subcommand"));
EXPECT_THAT(help, HasSubstr("group1"));
EXPECT_THAT(help, HasSubstr("sub2"));
EXPECT_TRUE(help.find("pos") == std::string::npos);
}