framework/js-packages/jest-config/test-matchers.ts
Sami Mazouz 7e6458a125
feat(jest): mithril component testing (#3679)
* feat(jest): create jest config package for unit testing
* chore: housekeeping
* fix: now we need to explicitly allow importing without extension
* fix: recover EditorDriverInterface import
* feat(jest): mithril component testing
* fix: use separate `tsconfig.test.json`

Signed-off-by: Sami Mazouz <sychocouldy@gmail.com>
2023-02-10 23:02:50 +01:00

22 lines
824 B
TypeScript

import { expect } from '@jest/globals';
// Extend Jest with mithril component test matchers.
expect.extend({
toHaveElement: intoMatcher((out: any, expected: any) => out.should.have(expected), 'Expected $received to have node $expected'),
toContainRaw: intoMatcher((out: any, expected: any) => out.should.contain(expected), 'Expected $received to contain $expected'),
});
function intoMatcher(callback: Function, message: string) {
return function (this: any, received: any, ...expected: any) {
try {
callback(received, ...expected);
return { pass: true, message: () => '' };
} catch (e) {
return {
pass: false,
message: () => message.replace('$expected', this.utils.printExpected(expected)).replace('$received', this.utils.printReceived('component')),
};
}
};
}