nushell/crates/nu-cli/tests/commands/histogram.rs

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Rust
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2019-12-17 19:54:39 +01:00
use nu_test_support::fs::Stub::FileWithContentToBeTrimmed;
use nu_test_support::playground::Playground;
use nu_test_support::{nu, pipeline};
#[test]
fn summarizes_by_column_given() {
Playground::setup("histogram_test_1", |dirs, sandbox| {
sandbox.with_files(vec![FileWithContentToBeTrimmed(
"los_tres_caballeros.csv",
r#"
first_name,last_name,rusty_at
Andrés,Robalino,Ecuador
Jonathan,Turner,Estados Unidos
Yehuda,Katz,Estados Unidos
"#,
)]);
let actual = nu!(
cwd: dirs.test(), pipeline(
r#"
open los_tres_caballeros.csv
| histogram rusty_at countries
| where rusty_at == "Ecuador"
| get countries
| echo $it
"#
));
assert_eq!(
actual.out,
"**************************************************"
);
// 50%
})
}
#[test]
fn summarizes_by_values() {
Playground::setup("histogram_test_2", |dirs, sandbox| {
sandbox.with_files(vec![FileWithContentToBeTrimmed(
"los_tres_caballeros.csv",
r#"
first_name,last_name,rusty_at
Andrés,Robalino,Ecuador
Jonathan,Turner,Estados Unidos
Yehuda,Katz,Estados Unidos
"#,
)]);
let actual = nu!(
cwd: dirs.test(), pipeline(
r#"
open los_tres_caballeros.csv
| get rusty_at
| histogram
| where value == "Estados Unidos"
| get occurrences
| echo $it
"#
));
assert_eq!(actual.out, "2");
})
}
#[test]
fn help() {
Playground::setup("histogram_test_3", |dirs, _sandbox| {
let help_command = nu!(
cwd: dirs.test(), pipeline(
r#"
help histogram
"#
));
let help_short = nu!(
cwd: dirs.test(), pipeline(
r#"
histogram -h
"#
));
let help_long = nu!(
cwd: dirs.test(), pipeline(
r#"
histogram --help
"#
));
assert_eq!(help_short.out, help_command.out);
assert_eq!(help_long.out, help_command.out);
})
}
#[test]
fn occurrences() {
let actual = nu!(
cwd: ".", pipeline(
r#"
echo "[{"bit":1},{"bit":0},{"bit":0},{"bit":0},{"bit":0},{"bit":0},{"bit":0},{"bit":1}]"
| from json
| histogram bit
| sort-by occurrences
| reject frequency
| to json
"#
));
let bit_json = r#"[{"bit":"1","occurrences":2,"percentage":"33.33%"},{"bit":"0","occurrences":6,"percentage":"100.00%"}]"#;
assert_eq!(actual.out, bit_json);
}