@stryker-mutator/core/dist/test/unit/reporters/html-reporter.spec.js

The extendable JavaScript mutation testing framework

import { expect } from 'chai';
import sinon from 'sinon';
import { testInjector } from '@stryker-mutator/test-helpers';
import { HtmlReporter } from '../../../src/reporters/html-reporter.js';
import { reporterUtil } from '../../../src/reporters/reporter-util.js';
describe(HtmlReporter.name, () => {
    let writeFileStub;
    let sut;
    beforeEach(() => {
        writeFileStub = sinon.stub(reporterUtil, 'writeFile');
        sut = testInjector.injector.injectClass(HtmlReporter);
    });
    describe('onMutationTestReportReady', () => {
        it('should use configured file name', async () => {
            testInjector.options.htmlReporter = { fileName: 'foo/bar.html' };
            actReportReady();
            await sut.wrapUp();
            expect(testInjector.logger.debug).calledWith('Using file "foo/bar.html"');
            sinon.assert.calledWithExactly(writeFileStub, 'foo/bar.html', sinon.match.string);
        });
        it('should write the mutation report to the report file', async () => {
            const report = {
                files: {
                    'foo.js': {
                        language: 'js',
                        mutants: [],
                        source: 'console.log("hello world")',
                    },
                },
                schemaVersion: '1.0',
                thresholds: {
                    high: 80,
                    low: 60,
                },
            };
            sut.onMutationTestReportReady(report);
            await sut.wrapUp();
            sinon.assert.calledWithExactly(writeFileStub, 'reports/mutation/mutation.html', sinon.match(JSON.stringify(report)));
        });
        it('should escape HTML tags in the mutation testing report.', async () => {
            const report = {
                files: {
                    'index.html': {
                        language: 'html',
                        mutants: [],
                        source: '<script></script>',
                    },
                },
                schemaVersion: '1.0',
                thresholds: {
                    high: 80,
                    low: 60,
                },
            };
            sut.onMutationTestReportReady(report);
            await sut.wrapUp();
            sinon.assert.calledWithExactly(writeFileStub, 'reports/mutation/mutation.html', sinon.match('"source":"<"+"script><"+"/script>"'));
        });
    });
    describe('wrapUp', () => {
        it('should resolve when everything is OK', () => {
            actReportReady();
            return expect(sut.wrapUp()).eventually.undefined;
        });
        it('should reject when "writeFile" rejects', () => {
            const expectedError = new Error('writeFile');
            writeFileStub.rejects(expectedError);
            actReportReady();
            return expect(sut.wrapUp()).rejectedWith(expectedError);
        });
    });
    function actReportReady() {
        sut.onMutationTestReportReady({ files: {}, schemaVersion: '', thresholds: { high: 0, low: 0 } });
    }
});
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