A TypeScript type checker plugin for Stryker, the
This plugin enables type checking on mutants, so you won't have to waste time on mutants which result in a type error.
👽 Type check each mutant. Invalid mutants will be marked as
CompileError in your Stryker report.
🧒 Easy to setup, only your
tsconfig.json file is needed.
🔢 Type check is done in-memory, no side effects on disk.
🎁 Support for both single typescript projects as well as projects with project references (
First, install Stryker itself (you can follow the getting started)
Next, install this package:
npm install --save-dev @stryker-mutator/typescript-checker
You can configure the typescript checker in the
The path to your tsconfig. Project references are supported,
--build mode will be enabled automatically when references are found in your tsconfig.json file.
Note: the following compiler options are always overridden by @stryker-mutator/typescript-checker to avoid false positives. See issue 391 for more information on this
@stryker-mutator/typescript-checker package for
stryker to enable
typescript support. As such, you should make sure you have the correct versions of its dependencies installed:
For the current versions, see the
peerDependencies section in the package.json.
Load the plugin
In this plugin the
@stryker-mutator/typescript-checker' must be loaded into Stryker.
The easiest way to achieve this, is not have a
plugins section in your config file. That way, all plugins starting with
"@stryker-mutator/" will be loaded.
If you do decide to choose specific modules, don't forget to add
"@stryker-mutator/typescript-checker" to the list of plugins to load.