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// -----------------------------------------------------------------------------------------------------
// Copyright (c) 2006-2020, Knut Reinert & Freie Universität Berlin
// Copyright (c) 2016-2020, Knut Reinert & MPI für molekulare Genetik
// This file may be used, modified and/or redistributed under the terms of the 3-clause BSD-License
// shipped with this file and also available at: https://github.com/seqan/seqan3/blob/master/LICENSE.md
// -----------------------------------------------------------------------------------------------------
#include <gtest/gtest.h>
#include <seqan3/argument_parser/argument_parser.hpp>
TEST(design_error, app_name_validation)
{
const char * argv[] = {"./argument_parser_test"};
EXPECT_NO_THROW((seqan3::argument_parser{"test_parser", 1, argv}));
EXPECT_NO_THROW((seqan3::argument_parser{"test-parser1234_foo", 1, argv}));
EXPECT_THROW((seqan3::argument_parser{"test parser", 1, argv}), seqan3::design_error);
EXPECT_THROW((seqan3::argument_parser{"test;", 1, argv}), seqan3::design_error);
EXPECT_THROW((seqan3::argument_parser{";", 1, argv}), seqan3::design_error);
EXPECT_THROW((seqan3::argument_parser{"test;bad script:D", 1, argv}), seqan3::design_error);
}
TEST(parse_test, design_error)
{
int option_value;
// short option
const char * argv[] = {"./argument_parser_test"};
seqan3::argument_parser parser{"test_parser", 1, argv};
parser.add_option(option_value, 'i', "int", "this is a int option.");
EXPECT_THROW(parser.add_option(option_value, 'i', "aint", "oh oh same id."),
seqan3::design_error);
// long option
seqan3::argument_parser parser2{"test_parser", 1, argv};
parser2.add_option(option_value, 'i', "int", "this is an int option.");
EXPECT_THROW(parser2.add_option(option_value, 'a', "int", "oh oh another id."),
seqan3::design_error);
// empty identifier
seqan3::argument_parser parser3{"test_parser", 1, argv};
EXPECT_THROW(parser3.add_option(option_value, '\0', "", "oh oh all is empty."),
seqan3::design_error);
bool flag_value;
// short flag
seqan3::argument_parser parser4{"test_parser", 1, argv};
parser4.add_flag(flag_value, 'i', "int1", "this is an int option.");
EXPECT_THROW(parser4.add_flag(flag_value, 'i', "int2", "oh oh another id."),
seqan3::design_error);
// long flag
seqan3::argument_parser parser5{"test_parser", 1, argv};
parser5.add_flag(flag_value, 'i', "int", "this is an int option.");
EXPECT_THROW(parser5.add_flag(flag_value, 'a', "int", "oh oh another id."),
seqan3::design_error);
// empty identifier
seqan3::argument_parser parser6{"test_parser", 1, argv};
EXPECT_THROW(parser6.add_flag(flag_value, '\0', "", "oh oh another id."),
seqan3::design_error);
// positional option not at the end
const char * argv2[] = {"./argument_parser_test", "arg1", "arg2", "arg3"};
std::vector<int> vec;
seqan3::argument_parser parser7{"test_parser", 4, argv2};
parser7.add_positional_option(vec, "oh oh list not at the end.");
EXPECT_THROW(parser7.add_positional_option(option_value, "desc."), seqan3::design_error);
// using h, help, advanced-help, and export-help
seqan3::argument_parser parser8{"test_parser", 1, argv};
EXPECT_THROW(parser8.add_option(option_value, 'h', "", "-h is bad."),
seqan3::design_error);
EXPECT_THROW(parser8.add_option(option_value, '\0', "help", "help is bad."),
seqan3::design_error);
EXPECT_THROW(parser8.add_option(option_value, '\0', "advanced-help",
"advanced-help is bad"), seqan3::design_error);
EXPECT_THROW(parser8.add_option(option_value, '\0', "export-help",
"export-help is bad"), seqan3::design_error);
// using one-letter long identifiers.
seqan3::argument_parser parser9{"test_parser", 1, argv};
EXPECT_THROW(parser9.add_option(option_value, 'y', "z", "long identifier is one letter"),
seqan3::design_error);
EXPECT_THROW(parser9.add_flag(flag_value, 'y', "z", "long identifier is one letter"),
seqan3::design_error);
// using non-printable characters
seqan3::argument_parser parser10{"test_parser", 1, argv};
EXPECT_THROW(parser10.add_option(option_value, '\t', "no\n", "tab and newline don't work!"),
seqan3::design_error);
EXPECT_THROW(parser10.add_flag(flag_value, 'i', "no\n", "tab and newline don't work!"),
seqan3::design_error);
EXPECT_THROW(parser10.add_flag(flag_value, 'a', "-no", "can't start long_id with a hyphen"),
seqan3::design_error);
}
TEST(parse_test, parse_called_twice)
{
std::string option_value;
const char * argv[] = {"./argument_parser_test", "--version-check", "0", "-s", "option_string"};
seqan3::argument_parser parser{"test_parser", 5, argv};
parser.add_option(option_value, 's', "string-option", "this is a string option.");
testing::internal::CaptureStderr();
EXPECT_NO_THROW(parser.parse());
EXPECT_TRUE((testing::internal::GetCapturedStderr()).empty());
EXPECT_EQ(option_value, "option_string");
EXPECT_THROW(parser.parse(), seqan3::design_error);
}
TEST(parse_test, subcommand_argument_parser_error)
{
bool flag_value{};
// subcommand parsing was not enabled on construction but get_sub_parser() is called
{
const char * argv[]{"./top_level", "-f"};
seqan3::argument_parser top_level_parser{"top_level", 2, argv, false};
top_level_parser.add_flag(flag_value, 'f', "foo", "foo bar");
EXPECT_NO_THROW(top_level_parser.parse());
EXPECT_EQ(true, flag_value);
EXPECT_THROW(top_level_parser.get_sub_parser(), seqan3::design_error);
}
// subcommand key word must only contain alpha numeric characters
{
const char * argv[]{"./top_level", "-f"};
EXPECT_THROW((seqan3::argument_parser{"top_level", 2, argv, false, {"with space"}}), seqan3::design_error);
EXPECT_THROW((seqan3::argument_parser{"top_level", 2, argv, false, {"-dash"}}), seqan3::design_error);
}
// no positional/options are allowed
{
const char * argv[]{"./top_level", "foo"};
seqan3::argument_parser top_level_parser{"top_level", 2, argv, false, {"foo"}};
EXPECT_THROW((top_level_parser.add_option(flag_value, 'f', "foo", "foo bar")), seqan3::design_error);
EXPECT_THROW((top_level_parser.add_positional_option(flag_value, "foo bar")), seqan3::design_error);
}
}
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