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522a828687
* Refactor InputStream and affected commands. First, making `values` private and leaning on the `Stream` implementation makes consumes of `InputStream` less likely to have to change in the future, if we change what an `InputStream` is internally. Second, we're dropping `Option<InputStream>` as the input to pipelines, internals, and externals. Instead, `InputStream.is_empty` can be used to check for "emptiness". Empty streams are typically only ever used as the first input to a pipeline. * Add run_external internal command. We want to push external commands closer to internal commands, eventually eliminating the concept of "external" completely. This means we can consolidate a couple of things: - Variable evaluation (for example, `$it`, `$nu`, alias vars) - Behaviour of whole stream vs per-item external execution It should also make it easier for us to start introducing argument signatures for external commands, * Update run_external.rs * Update run_external.rs * Update run_external.rs * Update run_external.rs Co-authored-by: Jonathan Turner <jonathandturner@users.noreply.github.com>
63 lines
1.6 KiB
Rust
63 lines
1.6 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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#[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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| sum
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| echo $it
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"#
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));
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assert_eq!(actual, "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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Playground::setup("sum_test_2", |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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sum
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| echo $it
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"#
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));
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assert_eq!(actual, "0");
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})
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}
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