nushell/crates/nu-command/tests/commands/math/sum.rs

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use nu_test_support::fs::Stub::FileWithContentToBeTrimmed;
use nu_test_support::playground::Playground;
use nu_test_support::{nu, pipeline};
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use std::str::FromStr;
#[test]
fn all() {
Playground::setup("sum_test_1", |dirs, sandbox| {
sandbox.with_files(vec![FileWithContentToBeTrimmed(
"meals.json",
r#"
{
meals: [
{description: "1 large egg", calories: 90},
{description: "1 cup white rice", calories: 250},
{description: "1 tablespoon fish oil", calories: 108}
]
}
"#,
)]);
let actual = nu!(
cwd: dirs.test(), pipeline(
r#"
open meals.json
| get meals
| get calories
| math sum
"#
));
assert_eq!(actual.out, "448");
})
}
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#[test]
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#[allow(clippy::unreadable_literal)]
#[allow(clippy::float_cmp)]
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fn compute_sum_of_individual_row() -> Result<(), String> {
let answers_for_columns = [
("cpu", 88.257434),
("mem", 3032375296.),
("virtual", 102579965952.),
];
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for (column_name, expected_value) in answers_for_columns {
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let actual = nu!(
cwd: "tests/fixtures/formats/",
format!("open sample-ps-output.json | select {column_name} | math sum | get {column_name}")
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);
let result =
f64::from_str(&actual.out).map_err(|_| String::from("Failed to parse float."))?;
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assert_eq!(result, expected_value);
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}
Ok(())
}
#[test]
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#[allow(clippy::unreadable_literal)]
#[allow(clippy::float_cmp)]
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fn compute_sum_of_table() -> Result<(), String> {
let answers_for_columns = [
("cpu", 88.257434),
("mem", 3032375296.),
("virtual", 102579965952.),
];
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for (column_name, expected_value) in answers_for_columns {
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let actual = nu!(
cwd: "tests/fixtures/formats/",
format!("open sample-ps-output.json | select cpu mem virtual | math sum | get {column_name}")
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);
let result =
f64::from_str(&actual.out).map_err(|_| String::from("Failed to parse float."))?;
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assert_eq!(result, expected_value);
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}
Ok(())
}
#[test]
fn sum_of_a_row_containing_a_table_is_an_error() {
let actual = nu!(
cwd: "tests/fixtures/formats/",
"open sample-sys-output.json | math sum"
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);
assert!(actual
.err
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.contains("Attempted to compute the sum of a value that cannot be summed"));
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}