/
helpers.ts
76 lines (68 loc) · 2.94 KB
/
helpers.ts
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
import { promises as fsPromises } from 'fs';
import { mutationTestReportSchema } from '@stryker-mutator/api/report';
import { expect } from 'chai';
import path from 'path';
import { calculateMetrics, MetricsResult, Metrics } from 'mutation-testing-metrics';
export async function readMutationTestResult(eventResultDirectory = path.resolve('reports', 'mutation', 'events')) {
const allReportFiles = await fsPromises.readdir(eventResultDirectory);
const mutationTestReportFile = allReportFiles.find(file => !!file.match(/.*onMutationTestReportReady.*/));
expect(mutationTestReportFile).ok;
const mutationTestReportContent = await fsPromises.readFile(path.resolve(eventResultDirectory, mutationTestReportFile || ''), 'utf8');
const report = JSON.parse(mutationTestReportContent) as mutationTestReportSchema.MutationTestResult;
const metricsResult = calculateMetrics(report.files);
return metricsResult;
}
type WritableMetricsResult = {
-readonly [K in keyof MetricsResult]: MetricsResult[K];
};
export function readLogFile(fileName = path.resolve('stryker.log')): Promise<string> {
return fsPromises.readFile(fileName, 'utf8');
}
export async function expectMetricsResult(expectedMetricsResult: Partial<MetricsResult>) {
const actualMetricsResult = await readMutationTestResult();
const actualSnippet: Partial<WritableMetricsResult> = {};
for (const key in expectedMetricsResult) {
actualSnippet[key as keyof MetricsResult] = actualMetricsResult[key as keyof MetricsResult] as any;
}
if (actualSnippet.metrics) {
if (typeof actualSnippet.metrics.mutationScore === 'number') {
actualSnippet.metrics.mutationScore = parseFloat(actualSnippet.metrics.mutationScore.toFixed(2));
}
if (typeof actualSnippet.metrics.mutationScoreBasedOnCoveredCode === 'number') {
actualSnippet.metrics.mutationScoreBasedOnCoveredCode = parseFloat(actualSnippet.metrics.mutationScoreBasedOnCoveredCode.toFixed(2));
}
}
expect(actualSnippet).deep.eq(expectedMetricsResult);
}
export async function expectMetrics(expectedMetrics: Partial<Metrics>) {
const actualMetricsResult = await readMutationTestResult();
const actualMetrics: Partial<Metrics> = {};
Object.entries(expectedMetrics).forEach(([key]) => {
if (key === 'mutationScore' || key === 'mutationScoreBasedOnCoveredCode') {
actualMetrics[key] = parseFloat(actualMetricsResult.metrics[key].toFixed(2));
} else {
actualMetrics[key as keyof Metrics] = actualMetricsResult.metrics[key as keyof Metrics];
}
});
expect(actualMetrics).deep.eq(expectedMetrics);
}
export function produceMetrics(metrics: Partial<Metrics>): Metrics {
return {
compileErrors: 0,
killed: 0,
mutationScore: 0,
mutationScoreBasedOnCoveredCode: 0,
noCoverage: 0,
runtimeErrors: 0,
survived: 0,
timeout: 0,
ignored: 0,
totalCovered: 0,
totalDetected: 0,
totalInvalid: 0,
totalMutants: 0,
totalUndetected: 0,
totalValid: 0,
...metrics
};
}