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bevy/crates/bevy_ecs_compile_fail_tests
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Rob Parrett 543465b721 Fix tests breaking when new WorldQuery impls are added (#6317) 
# Objective

I recently wanted to look at the possibility of adding `Mutated` and `Unchanged` query filters and was confronted with some seemingly unrelated broken tests.

These tests were written in such a way that changing the number of WorldQuery impls in the project would break them.

Fortunately, a [very recent release of trybuild](https://github.com/dtolnay/trybuild/releases/tag/1.0.70) has made this unnecessary. 

## Solution

Replace hardcoded numbers in test output with `$N` placeholders.
2022-10-21 11:15:06 +00:00
..
src Assert compiler errors for compile_fail tests (#3067) 2021-11-13 22:43:19 +00:00
tests Fix tests breaking when new WorldQuery impls are added (#6317) 2022-10-21 11:15:06 +00:00
Cargo.toml Fix release workflow (#4903) 2022-06-06 15:47:51 +00:00
README.md Assert compiler errors for compile_fail tests (#3067) 2021-11-13 22:43:19 +00:00

README.md

Compile fail tests for bevy_ecs

This crate is separate from bevy_ecs and not part of the Bevy workspace in order to not fail crater tests for Bevy. The tests assert on the exact compiler errors and can easily fail for new Rust versions due to updated compiler errors (e.g. changes in spans).

The CI workflow executes these tests on the stable rust toolchain (see tools/ci).