29 lines
760 B
TypeScript
29 lines
760 B
TypeScript
import { Assertion } from '../smartexpect.classes.assertion.js';
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/**
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* Namespace for function-specific matchers
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*/
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export class FunctionMatchers {
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constructor(private assertion: Assertion<Function>) {}
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toThrow(expectedError?: any) {
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return this.assertion.customAssertion(
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(value) => {
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let threw = false;
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try {
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(value as Function)();
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} catch (e: any) {
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threw = true;
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if (expectedError) {
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if (typeof expectedError === 'function') {
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return e instanceof expectedError;
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}
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return e === expectedError;
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}
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}
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return threw;
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},
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`Expected function to throw${expectedError ? ` ${expectedError}` : ''}`
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);
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}
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} |