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add validation tests

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This commit is contained in:
Benjamin Fry 2017-10-05 11:36:50 -07:00
parent 5fccd1fef8
commit 1401faa486
1 changed files with 77 additions and 0 deletions
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77
tests/env.rs
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@ -184,3 +184,80 @@ fn multiple_no_delimiter() {
vec!["env1 env2 env3"]
);
}
#[test]
fn possible_value() {
env::set_var("CLP_TEST_ENV", "env");
let r = App::new("df")
.arg(
Arg::from_usage("[arg] 'some opt'")
.env("CLP_TEST_ENV")
.possible_value("env"),
)
.get_matches_from_safe(vec![""]);
assert!(r.is_ok());
let m = r.unwrap();
assert!(m.is_present("arg"));
assert_eq!(m.occurrences_of("arg"), 0);
assert_eq!(m.value_of("arg").unwrap(), "env");
}
#[test]
fn not_possible_value() {
env::set_var("CLP_TEST_ENV", "env");
let r = App::new("df")
.arg(
Arg::from_usage("[arg] 'some opt'")
.env("CLP_TEST_ENV")
.possible_value("never"),
)
.get_matches_from_safe(vec![""]);
assert!(r.is_err());
}
#[test]
fn validator() {
env::set_var("CLP_TEST_ENV", "env");
let r = App::new("df")
.arg(
Arg::from_usage("[arg] 'some opt'")
.env("CLP_TEST_ENV")
.validator(|s| if s == "env" {
Ok(())
} else {
Err("not equal".to_string())
}),
)
.get_matches_from_safe(vec![""]);
assert!(r.is_ok());
let m = r.unwrap();
assert!(m.is_present("arg"));
assert_eq!(m.occurrences_of("arg"), 0);
assert_eq!(m.value_of("arg").unwrap(), "env");
}
#[test]
fn validator_invalid() {
env::set_var("CLP_TEST_ENV", "env");
let r = App::new("df")
.arg(
Arg::from_usage("[arg] 'some opt'")
.env("CLP_TEST_ENV")
.validator(|s| if s != "env" {
Ok(())
} else {
Err("is equal".to_string())
}),
)
.get_matches_from_safe(vec![""]);
assert!(r.is_err());
}