nushell/crates/nu-std/tests/test_std.nu
Stefan Holderbach c9e9b138eb
Improve with-env robustness (#12523)
# Description
Work for #7149

- **Error `with-env` given uneven count in list form**
- **Fix `with-env` `CantConvert` to record**
- **Error `with-env` when given protected env vars**
- **Deprecate list/table input of vars to `with-env`**
- **Remove examples for deprecated input**

# User-Facing Changes

## Deprecation of the following forms

```
> with-env [MYENV "my env value"] { $env.MYENV }
my env value

> with-env [X Y W Z] { $env.X }
Y

> with-env [[X W]; [Y Z]] { $env.W }
Z
```

## recommended standardized form

```
# Set by key-value record
> with-env {X: "Y", W: "Z"} { [$env.X $env.W] }
╭───┬───╮
│ 0 │ Y │
│ 1 │ Z │
╰───┴───╯
```

## (Side effect) Repeated definitions in an env shorthand are now
disallowed

```
> FOO=bar FOO=baz $env
Error: nu:🐚:column_defined_twice

  × Record field or table column used twice: FOO
   ╭─[entry #1:1:1]
 1 │ FOO=bar FOO=baz $env
   · ─┬─     ─┬─
   ·  │       ╰── field redefined here
   ·  ╰── field first defined here
   ╰────
```
2024-04-16 19:08:58 +08:00

62 lines
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use std
#[test]
def path_add [] {
use std assert
let path_name = if "PATH" in $env { "PATH" } else { "Path" }
with-env {$path_name: []} {
def get_path [] { $env | get $path_name }
assert equal (get_path) []
std path add "/foo/"
assert equal (get_path) (["/foo/"] | path expand)
std path add "/bar/" "/baz/"
assert equal (get_path) (["/bar/", "/baz/", "/foo/"] | path expand)
load-env {$path_name: []}
std path add "foo"
std path add "bar" "baz" --append
assert equal (get_path) (["foo", "bar", "baz"] | path expand)
assert equal (std path add "fooooo" --ret) (["fooooo", "foo", "bar", "baz"] | path expand)
assert equal (get_path) (["fooooo", "foo", "bar", "baz"] | path expand)
load-env {$path_name: []}
let target_paths = {
linux: "foo",
windows: "bar",
macos: "baz",
android: "quux",
}
std path add $target_paths
assert equal (get_path) ([($target_paths | get $nu.os-info.name)] | path expand)
load-env {$path_name: [$"/foo(char esep)/bar"]}
std path add "~/foo"
assert equal (get_path) (["~/foo", "/foo", "/bar"] | path expand)
}
}
#[test]
def banner [] {
std assert ((std banner | lines | length) == 15)
}
#[test]
def repeat_things [] {
std assert error { "foo" | std repeat -1 }
for x in ["foo", [1 2], {a: 1}] {
std assert equal ($x | std repeat 0) []
std assert equal ($x | std repeat 1) [$x]
std assert equal ($x | std repeat 2) [$x $x]
}
}