nushell/crates/nu-command/tests/commands/parse.rs

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use nu_test_support::fs::Stub;
use nu_test_support::playground::Playground;
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use nu_test_support::{nu, pipeline};
mod simple {
use super::*;
#[test]
fn extracts_fields_from_the_given_the_pattern() {
Playground::setup("parse_test_1", |dirs, sandbox| {
sandbox.with_files(vec![Stub::FileWithContentToBeTrimmed(
"key_value_separated_arepa_ingredients.txt",
r#"
VAR1=Cheese
VAR2=JonathanParsed
VAR3=NushellSecretIngredient
"#,
)]);
let actual = nu!(
cwd: dirs.test(), pipeline(
r#"
open key_value_separated_arepa_ingredients.txt
| lines
| each { echo $it | parse "{Name}={Value}" }
| nth 1
| get Value
"#
));
assert_eq!(actual.out, "JonathanParsed");
})
}
#[test]
fn double_open_curly_evalutes_to_a_single_curly() {
Playground::setup("parse_test_regex_2", |dirs, _sandbox| {
let actual = nu!(
cwd: dirs.test(), pipeline(
r#"
echo "{abc}123"
| parse "{{abc}{name}"
| get name
"#
));
assert_eq!(actual.out, "123");
})
}
#[test]
fn properly_escapes_text() {
Playground::setup("parse_test_regex_3", |dirs, _sandbox| {
let actual = nu!(
cwd: dirs.test(), pipeline(
r#"
echo "(abc)123"
| parse "(abc){name}"
| get name
"#
));
assert_eq!(actual.out, "123");
})
}
#[test]
fn properly_captures_empty_column() {
Playground::setup("parse_test_regex_4", |dirs, _sandbox| {
let actual = nu!(
cwd: dirs.test(), pipeline(
r#"
echo ["1:INFO:component:all is well" "2:ERROR::something bad happened"]
| parse "{timestamp}:{level}:{tag}:{entry}"
| get entry
| nth 1
"#
));
assert_eq!(actual.out, "something bad happened");
})
}
#[test]
fn errors_when_missing_closing_brace() {
Playground::setup("parse_test_regex_5", |dirs, _sandbox| {
let actual = nu!(
cwd: dirs.test(), pipeline(
r#"
echo "(abc)123"
| parse "(abc){name"
| get name
"#
));
assert!(actual.err.contains("invalid parse pattern"));
})
}
}
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mod regex {
use super::*;
fn nushell_git_log_oneline<'a>() -> Vec<Stub<'a>> {
vec![Stub::FileWithContentToBeTrimmed(
"nushell_git_log_oneline.txt",
r#"
ae87582c Fix missing invocation errors (#1846)
b89976da let format access variables also (#1842)
"#,
)]
}
#[test]
fn extracts_fields_with_all_named_groups() {
Playground::setup("parse_test_regex_1", |dirs, sandbox| {
sandbox.with_files(nushell_git_log_oneline());
let actual = nu!(
cwd: dirs.test(), pipeline(
r#"
open nushell_git_log_oneline.txt
| parse --regex "(?P<Hash>\w+) (?P<Message>.+) \(#(?P<PR>\d+)\)"
| nth 1
| get PR
"#
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));
assert_eq!(actual.out, "1842");
})
}
#[test]
fn extracts_fields_with_all_unnamed_groups() {
Playground::setup("parse_test_regex_2", |dirs, sandbox| {
sandbox.with_files(nushell_git_log_oneline());
let actual = nu!(
cwd: dirs.test(), pipeline(
r#"
open nushell_git_log_oneline.txt
| parse --regex "(\w+) (.+) \(#(\d+)\)"
| nth 1
| get Capture1
"#
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));
assert_eq!(actual.out, "b89976da");
})
}
#[test]
fn extracts_fields_with_named_and_unnamed_groups() {
Playground::setup("parse_test_regex_3", |dirs, sandbox| {
sandbox.with_files(nushell_git_log_oneline());
let actual = nu!(
cwd: dirs.test(), pipeline(
r#"
open nushell_git_log_oneline.txt
| parse --regex "(?P<Hash>\w+) (.+) \(#(?P<PR>\d+)\)"
| nth 1
| get Capture2
"#
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));
assert_eq!(actual.out, "let format access variables also");
})
}
#[test]
fn errors_with_invalid_regex() {
Playground::setup("parse_test_regex_1", |dirs, sandbox| {
sandbox.with_files(nushell_git_log_oneline());
let actual = nu!(
cwd: dirs.test(), pipeline(
r#"
open nushell_git_log_oneline.txt
| parse --regex "(?P<Hash>\w+ unfinished capture group"
"#
));
assert!(actual.err.contains("invalid regex"));
})
}
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}