tapbundle/ts/tapbundle.classes.tap.ts

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import * as plugins from './tapbundle.plugins';
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import { TapTest, ITestFunction } from './tapbundle.classes.taptest';
import { TapWrap, ITapWrapFunction } from './tapbundle.classes.tapwrap';
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export class Tap {
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/**
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* skips a test
* tests marked with tap.skip.test() are never executed
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*/
skip = {
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test: (descriptionArg: string, functionArg: ITestFunction) => {
console.log(`skipped test: ${descriptionArg}`);
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},
testParallel: (descriptionArg: string, functionArg: ITestFunction) => {
console.log(`skipped test: ${descriptionArg}`);
}
};
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/**
* only executes tests marked as ONLY
*/
only = {
test: (descriptionArg: string, testFunctionArg: ITestFunction) => {
this.test(descriptionArg, testFunctionArg, 'only');
}
}
private _tapTests: TapTest[] = [];
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private _tapTestsOnly: TapTest[] = [];
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/**
* Normal test function, will run one by one
* @param testDescription - A description of what the test does
* @param testFunction - A Function that returns a Promise and resolves or rejects
*/
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async test(testDescription: string, testFunction: ITestFunction, modeArg: 'normal' | 'only' | 'skip' = 'normal' ) {
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let localTest = new TapTest({
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description: testDescription,
testFunction: testFunction,
parallel: false
});
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if(modeArg === 'normal') {
this._tapTests.push(localTest);
} else if (modeArg === 'only') {
this._tapTestsOnly.push(localTest);
}
return localTest;
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}
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/**
* wraps function
*/
wrap(functionArg: ITapWrapFunction) {
return new TapWrap(functionArg);
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}
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/**
* A parallel test that will not be waited for before the next starts.
* @param testDescription - A description of what the test does
* @param testFunction - A Function that returns a Promise and resolves or rejects
*/
testParallel(testDescription: string, testFunction: ITestFunction) {
this._tapTests.push(
new TapTest({
description: testDescription,
testFunction: testFunction,
parallel: true
})
);
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}
/**
* starts the test evaluation
*/
async start(optionsArg?: { throwOnError: boolean }) {
let promiseArray: Promise<any>[] = [];
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// safeguard against empty test array
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if (this._tapTests.length === 0) {
console.log('no tests specified. Ending here!');
return;
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}
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// determine which tests to run
let concerningTests: TapTest[];
if(this._tapTestsOnly.length > 0) {
concerningTests = this._tapTestsOnly;
} else {
concerningTests = this._tapTests;
}
console.log(`1..${concerningTests.length}`);
for (let testKey = 0; testKey < concerningTests.length; testKey++) {
let currentTest = concerningTests[testKey];
let testPromise = currentTest.run(testKey);
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if (currentTest.parallel) {
promiseArray.push(testPromise);
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} else {
await testPromise;
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}
}
await Promise.all(promiseArray);
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// when tests have been run and all promises are fullfilled
let failReasons: string[] = [];
let executionNotes: string[] = [];
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// collect failed tests
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for (let tapTest of concerningTests) {
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if (tapTest.status !== 'success') {
failReasons.push(
`Test ${tapTest.testKey + 1} failed with status ${tapTest.status}:\n` +
`|| ${tapTest.description}\n` +
`|| for more information please take a look the logs above`
);
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}
}
// render fail Reasons
for (let failReason of failReasons) {
console.log(failReason);
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}
if (optionsArg && optionsArg.throwOnError && failReasons.length > 0) {
process.exit(1);
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}
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}
/**
* handle errors
*/
threw(err) {
console.log(err);
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}
}
export let tap = new Tap();