mirror of
https://github.com/luau-lang/luau.git
synced 2024-12-13 21:40:43 +00:00
1ac64af484
Introduces a test runner with test cases. Also significantly overhauls the GHA configuration.
45 lines
1.6 KiB
Markdown
45 lines
1.6 KiB
Markdown
# Prototyping Luau
|
|
|
|
|
|
|
|
An experimental prototyping system for the Luau type system. This is
|
|
intended to allow core language features to be tested quickly, without
|
|
having to interact with all the features of production Lua.
|
|
|
|
## Building
|
|
|
|
First install Haskell and Agda.
|
|
|
|
Install dependencies:
|
|
```
|
|
cabal update
|
|
cabal install --lib aeson scientific vector
|
|
```
|
|
|
|
Then compile
|
|
```
|
|
agda --compile PrettyPrinter.agda
|
|
```
|
|
|
|
and run!
|
|
```
|
|
luau-ast Examples/SmokeTest.lua | ./PrettyPrinter
|
|
```
|
|
|
|
## Testing
|
|
|
|
We have a series of snapshot tests in the `Tests/` directory. You interact with the tests using the `tests` Python script in the `prototyping` directory. To simply run the tests, run:
|
|
|
|
```sh
|
|
tests --luau-cli ../build/luau-ast --build
|
|
```
|
|
|
|
This will build the test targets and run them. Run `tests --help` for information about all the command-line options.
|
|
|
|
### Adding a new test
|
|
|
|
To add a new test, add it to `Tests/{SUITE_NAME}/{CASE_NAME}`. You'll need an `in.lua` file and an `out.txt` file. The `in.lua` file is the input Luau source code, while the `out.txt` file is the expected output after running `luau-ast in.lua | test_executable`.
|
|
|
|
### Updating a test
|
|
|
|
If you make a change to the prototype that results in an expected change in behavior, you might want to update the test cases automatically. To do this, run `tests` with the `--accept-new-output` (`-a` for short) flag. Rather than diffing the output, this will overwrite the `out.txt` files for each test case with the actual result. Commit the resulting changes with your PR.
|