void ArgumentsTest::disallowedCharacterShort() {
std::ostringstream out;
Error redirectError{&out};
Arguments args;
args.addOption(' ', "bar");
CORRADE_COMPARE(out.str(), "Utility::Arguments::addOption(): invalid key bar or its short variant\n");
}
void ArgumentsTest::prefixedHelpWithoutPrefix() {
Arguments args;
args.addArgument("file").setHelp("file", "file to read")
.addBooleanOption('b', "binary").setHelp("binary", "read as binary")
.addSkippedPrefix("read", "reader options")
.addSkippedPrefix("write");
const auto expected = R"text(Usage:
./app [--read-...] [--write-...] [-h|--help] [-b|--binary] [--] file
Arguments:
file file to read
-h, --help display this help message and exit
-b, --binary read as binary
--read-... reader options
(see --read-help for details)
--write-... (see --write-help for details)
)text";
CORRADE_COMPARE(args.help(), expected);
}
void ArgumentsTest::prefixedHelpWithPrefix() {
Arguments args{"read"};
args.addOption("behavior", "buffered").setHelp("behavior", "reader behavior")
.addOption("buffer-size").setHelp("buffer-size", "buffer size", "SIZE");
const auto expected = R"text(Usage:
./app [--read-help] [--read-behavior BEHAVIOR] [--read-buffer-size SIZE] ...
Arguments:
... main application arguments
(see -h or --help for details)
--read-help display this help message and exit
--read-behavior BEHAVIOR reader behavior
(default: buffered)
--read-buffer-size SIZE buffer size
)text";
CORRADE_COMPARE(args.help(), expected);
}
void ArgumentsTest::prefixedDisallowedCalls() {
std::ostringstream out;
Error redirectError{&out};
Arguments args{"reader"};
args.addArgument("foo")
.addNamedArgument("bar")
.addOption('a', "baz")
.addBooleanOption("eh")
.setHelp("global help");
CORRADE_COMPARE(out.str(),
"Utility::Arguments::addArgument(): argument foo not allowed in prefixed version\n"
"Utility::Arguments::addNamedArgument(): argument bar not allowed in prefixed version\n"
"Utility::Arguments::addOption(): short option a not allowed in prefixed version\n"
"Utility::Arguments::addBooleanOption(): boolean option eh not allowed in prefixed version\n"
"Utility::Arguments::setHelp(): global help text only allowed in unprefixed version\n");
}
void ArgumentsTest::prefixedDisallowedWithPrefix() {
std::ostringstream out;
Error redirectError{&out};
Arguments args;
args.addOption("reader-flush")
.addSkippedPrefix("reader");
CORRADE_COMPARE(out.str(),
"Utility::Arguments::addSkippedPrefix(): skipped prefix reader conflicts with existing keys\n");
}
void ArgumentsTest::parseMissingValue() {
Arguments args;
args.addOption("output");
const char* argv[] = { "", "--output" };
const int argc = std::extent<decltype(argv)>();
std::ostringstream out;
Error redirectError{&out};
CORRADE_VERIFY(!args.tryParse(argc, argv));
CORRADE_COMPARE(out.str(), "Missing value for command-line argument --output\n");
}