argc 1.24.0

A bash cli framework, also a bash-based command runner
Documentation 
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#[test]
fn unsupported_tag() {
    let script = r###"
# @baz
    "###;
    fail!(script, &["prog"], "@baz(line 2) is unknown tag");
}

#[test]
fn unexpected_arg() {
    let script = r###"
# @flag --foo
foo() {

}

# @arg baz
    "###;
    fail!(
        script,
        &["prog"],
        "@arg(line 7) shouldn't be here, @cmd is missing?"
    );
}

#[test]
fn conflict_cmd() {
    let script = r###"
# @flag --foo

# @cmd
foo() {
}

# @cmd
foo() {
}
    "###;
    fail!(
        script,
        &["prog"],
        "foo(line 9) conflicts with cmd or alias at line 5"
    );
}

#[test]
fn conflict_short_option() {
    let script = r###"
# @option -f --foo1
# @option -f --foo2
    "###;
    fail!(
        script,
        &["prog"],
        "@option(line 3) has '-f' already exists at line 2"
    );
}

#[test]
fn conflict_long_option() {
    let script = r###"
# @option -a --foo
# @option -f --foo
    "###;
    fail!(
        script,
        &["prog"],
        "@option(line 3) has '--foo' already exists at line 2"
    );
}

#[test]
fn conflict_short_flag() {
    let script = r###"
# @flag -f --foo1
# @flag -f --foo2
    "###;
    fail!(
        script,
        &["prog"],
        "@flag(line 3) has '-f' already exists at line 2"
    );
}

#[test]
fn conflict_long_flag() {
    let script = r###"
# @flag -a --foo
# @flag -f --foo
    "###;
    fail!(
        script,
        &["prog"],
        "@flag(line 3) has '--foo' already exists at line 2"
    );
}

#[test]
fn conflict_positional() {
    let script = r###"
# @arg foo
# @arg foo
    "###;
    fail!(
        script,
        &["prog"],
        "@arg(line 3) has 'foo' already exists at line 2"
    );
}

#[test]
fn conflict_alias() {
    let script = r###"
# @cmd
# @alias t,tst
test() {
}
# @cmd
# @alias t
try() {
}
    "###;
    fail!(
        script,
        &["prog"],
        "@alias(line 7) conflicts with cmd or alias at line 3"
    );
}

#[test]
fn option_miss_default_fn() {
    let script = r###"
# @option --foo=`_fn`
    "###;
    fail!(script, &["prog"], "_fn(line 2) is missing");
}

#[test]
fn option_miss_choice_fn() {
    let script = r###"
# @option --foo[`_fn`]
    "###;
    fail!(script, &["prog"], "_fn(line 2) is missing");
}

#[test]
fn arg_miss_default_fn() {
    let script = r###"
# @arg foo=`_fn`
    "###;
    fail!(script, &["prog"], "_fn(line 2) is missing");
}

#[test]
fn arg_miss_choice_fn() {
    let script = r###"
# @arg foo[`_fn`]
    "###;
    fail!(script, &["prog"], "_fn(line 2) is missing");
}

#[test]
fn cmd_miss_fn() {
    let script = r###"
# @cmd
# @cmd
    "###;
    fail!(script, &["prog"], "@cmd(line 2) missing function?");
}

#[test]
fn options_compbine_assigned_and_multi_notations() {
    let script = r###"
# @option --format: <VAL1> <VAL2>
    "###;
    fail!(
        script,
        &["prog"],
        "@option(line 2) is invalid, cannot combine assign and multiple notations"
    );
}

#[test]
fn options_compbine_prefixed_and_multi_notations() {
    let script = r###"
# @option -D-* <VAL1> <VAL2>
    "###;
    fail!(
        script,
        &["prog"],
        "@option(line 2) is invalid, cannot combine prefix and multiple notations"
    );
}

#[test]
fn options_compbine_delimiter_and_multi_notations() {
    let script = r###"
# @option --oa*, <VAL1> <VAL2>
    "###;
    fail!(
        script,
        &["prog"],
        "@option(line 2) is invalid, cannot combine delmiter and multiple notations"
    );
}

#[test]
fn invalid_envs() {
    let script = r###"
# @env VAR*
    "###;
    fail!(
        script,
        &["prog"],
        "@env(line 2) is invalid, can only be a single value"
    );
}