Added assert not command (assertion that the value/expression is false) (#9235)

# Description
A new command to simplify assertions for `false`.

The name is just a draft, though I could not come up with a better name.
I have rejected `assert false`, because I would have to rename `assert`
to `assert true` which would break the compatibility and worsen the
shell experience of the good old `assert`.

Another idea I have rejected was something like `assert_false` to keep
it consistent with the naming convention of our stdlib.

I am open to suggestions :)

# User-Facing Changes
Just a new command

# Tests + Formatting
- [x] Done

# After Submitting
<!-- If your PR had any user-facing changes, update [the
documentation](https://github.com/nushell/nushell.github.io) after the
PR is merged, if necessary. This will help us keep the docs up to date.
-->
This commit is contained in:
Kamil
2023-05-19 11:33:19 +02:00
committed by GitHub
parent e752d8a964
commit ca275f59da
3 changed files with 62 additions and 6 deletions

View File

@ -7,6 +7,13 @@ export def test_assert [] {
assert error { assert (1 + 2 == 4) }
}
export def test_assert_not [] {
assert not false
assert not (1 + 2 == 4)
assert error { assert not true }
assert error { assert not (1 + 2 == 3) }
}
export def test_assert_equal [] {
assert equal (1 + 2) 3
assert equal (0.1 + 0.2 | into string | into decimal) 0.3 # 0.30000000000000004 == 0.3

View File

@ -114,8 +114,8 @@ def "assert custom message contains" [
tested_str
] {
let output = (run custom $system_level $format $message_level)
assert ($output | str contains $tested_str)
assert ($output | str contains "test message")
assert str contains $output $tested_str
assert str contains $output "test message"
}
def "assert custom message not contains" [
@ -125,8 +125,8 @@ def "assert custom message not contains" [
tested_str
] {
let output = (run custom $system_level $format $message_level)
assert (not ($output | str contains $tested_str))
assert ($output | str contains "test message")
assert not ($output | str contains $tested_str)
assert str contains $output "test message"
}
def "assert no custom message" [