nushell/crates/nu-command/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
JT,Turner,Estados Unidos
Yehuda,Katz,Estados Unidos
"#,
)]);
let actual = nu!(
cwd: dirs.test(), pipeline(
r#"
open los_tres_caballeros.csv
| histogram rusty_at countries --percentage-type relative
| where rusty_at == "Ecuador"
| get countries
| get 0
"#
));
assert_eq!(
actual.out,
"**************************************************"
);
// 50%
})
}
#[test]
fn summarizes_by_column_given_with_normalize_percentage() {
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
JT,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
| get 0
"#
));
assert_eq!(actual.out, "*********************************");
// 33%
})
}
#[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
JT,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 count
| get 0
"#
));
assert_eq!(actual.out, "2");
})
}
#[test]
fn help() {
let help_command = nu!("help histogram");
let help_short = nu!("histogram -h");
let help_long = nu!("histogram --help");
assert_eq!(help_short.out, help_command.out);
assert_eq!(help_long.out, help_command.out);
}
#[test]
fn count() {
let actual = nu!(pipeline(
r#"
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echo [[bit]; [1] [0] [0] [0] [0] [0] [0] [1] [1]]
| histogram bit --percentage-type relative
| sort-by count
| reject frequency
| to json
"#
));
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let bit_json = r#"[ { "bit": 1, "count": 3, "quantile": 0.5, "percentage": "50.00%" }, { "bit": 0, "count": 6, "quantile": 1, "percentage": "100.00%" }]"#;
assert_eq!(actual.out, bit_json);
}
#[test]
fn count_with_normalize_percentage() {
let actual = nu!(
cwd: ".", pipeline(
r#"
echo [[bit]; [1] [0] [0] [0] [0] [0] [0] [1]]
| histogram bit --percentage-type normalize
| sort-by count
| reject frequency
| to json
"#
));
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let bit_json = r#"[ { "bit": 1, "count": 2, "quantile": 0.25, "percentage": "25.00%" }, { "bit": 0, "count": 6, "quantile": 0.75, "percentage": "75.00%" }]"#;
assert_eq!(actual.out, bit_json);
}