tapbundle/ts/tapbundle.classes.tap.ts

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import * as plugins from './tapbundle.plugins';
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import { IPreTaskFunction, PreTask } from './tapbundle.classes.pretask';
import { TapTest, ITestFunction } from './tapbundle.classes.taptest';
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export class Tap <T> {
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/**
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* skips a test
* tests marked with tap.skip.test() are never executed
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*/
public skip = {
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test: (descriptionArg: string, functionArg: ITestFunction<T>) => {
console.log(`skipped test: ${descriptionArg}`);
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},
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testParallel: (descriptionArg: string, functionArg: ITestFunction<T>) => {
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console.log(`skipped test: ${descriptionArg}`);
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},
};
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/**
* only executes tests marked as ONLY
*/
public only = {
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test: (descriptionArg: string, testFunctionArg: ITestFunction<T>) => {
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this.test(descriptionArg, testFunctionArg, 'only');
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},
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};
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private _tapPreTasks: PreTask[] = [];
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private _tapTests: TapTest<any>[] = [];
private _tapTestsOnly: TapTest<any>[] = [];
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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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public test(
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testDescription: string,
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testFunction: ITestFunction<T>,
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modeArg: 'normal' | 'only' | 'skip' = 'normal'
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): TapTest<T> {
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const localTest = new TapTest<T>({
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description: testDescription,
testFunction,
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parallel: false,
});
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if (modeArg === 'normal') {
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this._tapTests.push(localTest);
} else if (modeArg === 'only') {
this._tapTestsOnly.push(localTest);
}
return localTest;
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}
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public preTask(descriptionArg: string, functionArg: IPreTaskFunction) {
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this._tapPreTasks.push(new PreTask(descriptionArg, functionArg));
}
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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
*/
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public testParallel(testDescription: string, testFunction: ITestFunction<T>) {
this._tapTests.push(
new TapTest({
description: testDescription,
testFunction,
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parallel: true,
})
);
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}
/**
* starts the test evaluation
*/
public async start(optionsArg?: { throwOnError: boolean }) {
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// lets set the tapbundle promise
const smartenvInstance = new plugins.smartenv.Smartenv();
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smartenvInstance.isBrowser
? (globalThis.tapbundleDeferred = plugins.smartpromise.defer())
: null;
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// lets continue with running the tests
const promiseArray: Array<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!');
// TODO: throw proper error
return;
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}
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// determine which tests to run
let concerningTests: TapTest[];
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if (this._tapTestsOnly.length > 0) {
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concerningTests = this._tapTestsOnly;
} else {
concerningTests = this._tapTests;
}
// lets run the pretasks
for (const preTask of this._tapPreTasks) {
await preTask.run();
}
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console.log(`1..${concerningTests.length}`);
for (let testKey = 0; testKey < concerningTests.length; testKey++) {
const currentTest = concerningTests[testKey];
const 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
const failReasons: string[] = [];
const executionNotes: string[] = [];
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// collect failed tests
for (const 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 (const failReason of failReasons) {
console.log(failReason);
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}
if (optionsArg && optionsArg.throwOnError && failReasons.length > 0) {
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if (!smartenvInstance.isBrowser) process.exit(1);
}
if (smartenvInstance.isBrowser) {
globalThis.tapbundleDeferred.resolve();
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}
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}
/**
* handle errors
*/
public threw(err) {
console.log(err);
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}
}
export let tap = new Tap();