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# Description Previously, `par-each` acted like a `flatmap`: first mapping the data, then applying a `flatten`. This is unlike `each`, which just maps the data. Now `par-each` works like `each` in this regard, leaving nested data unflattened. Fixes #8497 # User-Facing Changes Previously: `[1 2 3] | par-each {|e| [$e, $e] }` --> `[1,1,2,2,3,3]` Now: `[1 2 3] | par-each {|e| [$e, $e] }` --> `[[1,1],[2,2],[3,3]]` # Tests This adds one test that verifies the lack of flattening for `par-each`.
12 lines
333 B
Rust
12 lines
333 B
Rust
use nu_test_support::{nu, pipeline};
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#[test]
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fn par_each_does_not_flatten_nested_structures() {
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// This is a regression test for issue #8497
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let actual = nu!(
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cwd: ".", pipeline(
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r#"[1 2 3] | par-each { |it| [$it, $it] } | sort | to json --raw"#
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));
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assert_eq!(actual.out, "[[1,1],[2,2],[3,3]]");
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}
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