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Ryan Roden-Corrent b90bae79da
doc: document that test_ functions may propagate errors (#10162)
When testing a function that can return an error, writing a test like
this allows you to more easily test the non-error flow by just
propagating any errors and letting them fail the test.

I didn't realize this was a feature at first, so I was writing tests
like:

```
fn test_atoi() {
	assert strconv.atoi('1') or { panic("atoi failed") } == 1
	assert strconv.atoi('one') or { panic("atoi failed") } == 1
}
```
2021-05-21 14:18:13 +03:00
..
docs.md doc: document that test_ functions may propagate errors (#10162) 2021-05-21 14:18:13 +03:00
upcoming.md