forked from extern/nushell
9364bad625
This PR changes `to text` so that when given a `ListStream`, it streams
the incoming values instead of collecting them all first.
The easiest way to observe/verify this PR is to convert a list to a very
slow `ListStream` with `each`:
```bash
ls | get name | each {|n| sleep 1sec; $n} | to text
```
The `to text` output will appear 1 item at a time.
20 lines
647 B
Rust
20 lines
647 B
Rust
use nu_test_support::nu;
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#[test]
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fn list_to_text() {
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let actual = nu!(r#"["foo" "bar" "baz"] | to text"#);
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// these actually have newlines between them in the real world but nu! strips newlines, grr
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assert_eq!(actual.out, "foobarbaz");
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}
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// the output should be the same when `to text` gets a ListStream instead of a Value::List
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#[test]
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fn list_stream_to_text() {
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// use `each` to convert the list to a ListStream
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let actual = nu!(r#"["foo" "bar" "baz"] | each {|i| $i} | to text"#);
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// these actually have newlines between them in the real world but nu! strips newlines, grr
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assert_eq!(actual.out, "foobarbaz");
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}
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