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https://github.com/nushell/nushell.git
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028fc9b9cd
Refactored out most of internal work for summarizing data opening the door for generating charts from it. A model is introduced to hold information needed for a summary, Histogram command is an example of a partial usage. This is the beginning. Removed implicit arithmetic traits on Value and Primitive to avoid mixed types panics. The std operations traits can't fail and we can't guarantee that. We can handle gracefully now since compute_values was introduced after the parser changes four months ago. The handling logic should be taken care of either explicitly or in compute_values. The zero identity trait was also removed (and implementing this forced us to also implement Add, Mult, etc) Also: the `math` operations now remove in the output if a given column is not computable: ``` > ls | math sum ──────┬────────── size │ 150.9 KB ──────┴────────── ```
96 lines
2.7 KiB
Rust
96 lines
2.7 KiB
Rust
use nu_test_support::fs::Stub::FileWithContentToBeTrimmed;
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use nu_test_support::playground::Playground;
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use nu_test_support::{nu, pipeline};
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use std::str::FromStr;
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#[test]
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fn all() {
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Playground::setup("sum_test_1", |dirs, sandbox| {
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sandbox.with_files(vec![FileWithContentToBeTrimmed(
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"meals.json",
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r#"
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{
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meals: [
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{description: "1 large egg", calories: 90},
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{description: "1 cup white rice", calories: 250},
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{description: "1 tablespoon fish oil", calories: 108}
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]
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}
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"#,
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)]);
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let actual = nu!(
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cwd: dirs.test(), pipeline(
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r#"
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open meals.json
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| get meals
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| get calories
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| math sum
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| echo $it
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"#
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));
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assert_eq!(actual.out, "448");
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})
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}
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#[test]
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fn outputs_zero_with_no_input() {
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let actual = nu!(cwd: ".", "math sum | echo $it");
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assert_eq!(actual.out, "0");
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}
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#[test]
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#[allow(clippy::unreadable_literal)]
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#[allow(clippy::float_cmp)]
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fn compute_sum_of_individual_row() -> Result<(), String> {
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let answers_for_columns = [
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("cpu", 88.257434),
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("mem", 3032375296.),
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("virtual", 102579965952.),
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];
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for (column_name, expected_value) in answers_for_columns.iter() {
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let actual = nu!(
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cwd: "tests/fixtures/formats/",
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format!("open sample-ps-output.json | select {} | math sum | get {}", column_name, column_name)
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);
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let result =
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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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}
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Ok(())
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}
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#[test]
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#[allow(clippy::unreadable_literal)]
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#[allow(clippy::float_cmp)]
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fn compute_sum_of_table() -> Result<(), String> {
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let answers_for_columns = [
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("cpu", 88.257434),
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("mem", 3032375296.),
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("virtual", 102579965952.),
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];
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for (column_name, expected_value) in answers_for_columns.iter() {
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let actual = nu!(
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cwd: "tests/fixtures/formats/",
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format!("open sample-ps-output.json | select cpu mem virtual | math sum | get {}", column_name)
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);
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let result =
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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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}
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Ok(())
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}
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#[test]
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fn sum_of_a_row_containing_a_table_is_an_error() {
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let actual = nu!(
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cwd: "tests/fixtures/formats/",
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"open sample-sys-output.json | math sum"
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);
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assert!(actual
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.err
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.contains("Attempted to compute values that can't be operated on"));
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}
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