nushell/crates/nu-command/tests/commands/path/split.rs

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Path Enhancement Project #2: parse, join and split (#3256) * Add new path parse subcommand This includes a slight refactor to all the path subcommand `action()` functions. * Remove filestem and extension; Fix example * Add additional description to path parse * Put join arg behind flag; Fix missing import (Win) * Fix error when column path is passed as arg * Add structured path joining Structured path is implicitly joined at every patch subcommand call. * Fix existing path join tests; Fix rustfmt * Remove redundant 'static lifetime (clippy) * Add initial impl of path split subcommand * Add ability to join path from parts * Fix wrong results in path split examples * Fix remaining asyncs after engine change * Do not wrap split path parts into table When the input is just a list of values, the `path split` command will split each value directly into the output stream, similar to `split-row`. Column path--specified values are still wrapped into a table so they can still be used to replace table fields. * Join list of values instead of going one-by-one When `path join` encounters a list of values, it attempts to join them, instead of going one-by-one like the rest of the path commands. You can still `each { echo $it | path join }` to join them one-by-one, if the values are, e.g., tables. Now, the behavior of `path split` and `path join` should match the `split-row` and `str collect` counterparts and should hopefully align better with user's expectations. * Make sure path join detects structured path * Fix panic on empty input stream Also, doesn't collect input into vector unnecessarily. * Fix path join not appending value * Remove argument serialization * Make better errors; Misc refactor * OsStr -> String encoding is now lossy, instead of throwing an error * The consequence is action() now always returns Value instead of Result * Removed redundant handle_value() call in `path join` * Fix possible incorrect error detection in `path split` * Applied rustfmt + clippy * Add more usage, examples & test; Fix type error The 'parent' column was required to be a path but didn't work with string. * Add more help & examples; Maybe fix Windows error * Refactor operate function Reducing code repetition * Review usages and examples * Add the option to manually specify the extension * Add more tests; Fix failures on Windows * Move path commands to engine-p * Small refactor
2021-04-20 08:45:28 +02:00
use nu_test_support::{nu, pipeline};
#[test]
fn splits_empty_path() {
let actual = nu!(
cwd: "tests", pipeline(
r#"
echo '' | path split
"#
));
assert_eq!(actual.out, "");
}
#[test]
fn splits_correctly_single_path() {
let actual = nu!(
cwd: "tests", pipeline(
r#"
echo ['home/viking/spam.txt']
| path split
| last
"#
));
assert_eq!(actual.out, "spam.txt");
}
#[test]
fn splits_correctly_with_column_path() {
let actual = nu!(
cwd: "tests", pipeline(
r#"
echo [
[home, barn];
['home/viking/spam.txt', 'barn/cow/moo.png']
['home/viking/eggs.txt', 'barn/goat/cheese.png']
]
| path split home barn
| get barn
| length
"#
));
assert_eq!(actual.out, "6");
}