nushell/crates/nu-command/tests/commands/detect_columns.rs
Wind 28ed0fe700
Improves commands that support range input (#13113)
# Description
Fixes: #13105
Fixes: #13077

This pr makes `str substring`, `bytes at` work better with negative
index.

And it also fixes the false range semantic on `detect columns -c` in
some cases.

# User-Facing Changes
For `str substring`, `bytes at`, it will no-longer return an error if
start index is larger than end index. It makes sense to return an empty
string of empty bytes directly.

### Before
```nushell
# str substring
❯ ("aaa" | str substring 2..-3) == ""
Error: nu:🐚:type_mismatch

  × Type mismatch.
   ╭─[entry #23:1:10]
 1 │ ("aaa" | str substring 2..-3) == ""
   ·          ──────┬──────
   ·                ╰── End must be greater than or equal to Start
 2 │ true
   ╰────

# bytes at
❯ ("aaa" | encode utf-8 | bytes at 2..-3) == ("" | encode utf-8)
Error: nu:🐚:type_mismatch

  × Type mismatch.
   ╭─[entry #27:1:25]
 1 │ ("aaa" | encode utf-8 | bytes at 2..-3) == ("" | encode utf-8)
   ·                         ────┬───
   ·                             ╰── End must be greater than or equal to Start
   ╰────
```
### After
```nushell
# str substring
❯ ("aaa" | str substring 2..-3) == ""
true

# bytes at
❯  ("aaa" | encode utf-8 | bytes at 2..-3) == ("" | encode utf-8)
true
```
# Tests + Formatting
Added some tests, adjust existing tests
2024-06-18 07:19:13 -05:00

96 lines
2.6 KiB
Rust

use nu_test_support::{nu, pipeline, playground::Playground};
#[test]
fn detect_columns_with_legacy() {
let cases = [(
"$\"c1 c2 c3 c4 c5(char nl)a b c d e\"",
"[[c1,c2,c3,c4,c5]; [a,b,c,d,e]]",
)];
Playground::setup("detect_columns_test_1", |dirs, _| {
for case in cases.into_iter() {
let out = nu!(
cwd: dirs.test(),
"({} | detect columns) == {}",
case.0,
case.1
);
assert_eq!(
out.out, "true",
"({} | detect columns) == {}",
case.0, case.1
);
}
});
}
#[test]
fn detect_columns_with_legacy_and_flag_c() {
let cases = [
(
"$\"c1 c2 c3 c4 c5(char nl)a b c d e\"",
"[[c1,c3,c4,c5]; ['a b',c,d,e]]",
"0..1",
),
(
"$\"c1 c2 c3 c4 c5(char nl)a b c d e\"",
"[[c1,c2,c3,c4]; [a,b,c,'d e']]",
"(-2)..(-1)",
),
(
"$\"c1 c2 c3 c4 c5(char nl)a b c d e\"",
"[[c1,c2,c3]; [a,b,'c d e']]",
"2..",
),
];
Playground::setup("detect_columns_test_1", |dirs, _| {
for case in cases.into_iter() {
let out = nu!(
cwd: dirs.test(),
"({} | detect columns --combine-columns {}) == {}",
case.0,
case.2,
case.1,
);
assert_eq!(
out.out, "true",
"({} | detect columns --combine-columns {}) == {}",
case.0, case.2, case.1
);
}
});
}
#[test]
fn detect_columns_with_flag_c() {
let body = "$\"
total 284K(char nl)
drwxr-xr-x 2 root root 4.0K Mar 20 08:28 =(char nl)
drwxr-xr-x 4 root root 4.0K Mar 20 08:18 ~(char nl)
-rw-r--r-- 1 root root 3.0K Mar 20 07:23 ~asdf(char nl)\"";
let expected = "[
['column0', 'column1', 'column2', 'column3', 'column4', 'column5', 'column7', 'column8'];
['drwxr-xr-x', '2', 'root', 'root', '4.0K', 'Mar 20', '08:28', '='],
['drwxr-xr-x', '4', 'root', 'root', '4.0K', 'Mar 20', '08:18', '~'],
['-rw-r--r--', '1', 'root', 'root', '3.0K', 'Mar 20', '07:23', '~asdf']
]";
let range = "5..6";
let cmd = format!(
"({} | detect columns -c {} -s 1 --no-headers) == {}",
pipeline(body),
range,
pipeline(expected),
);
println!("debug cmd: {cmd}");
Playground::setup("detect_columns_test_1", |dirs, _| {
let out = nu!(
cwd: dirs.test(),
cmd,
);
println!("{}", out.out);
assert_eq!(out.out, "true");
})
}