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web-atoms-unit

v1.0.23

Published

Simple unit testing for web atoms on browser

Downloads

32

Readme

Web Atoms Unit Testing

Simple Unit testing framework for web atoms.

Dependencies

typescript

Please make sure, decorator support is enabled for your tests.

Installation

npm install web-atoms-unit

Running with Node

Create a run-tests.js file

    var fs = require("fs");
    var vm = require("vm");

    function loadScript(file){
        var s = fs.readFileSync(file,'utf-8');
        var script = new vm.Script(s, { filename: file });
        script.runInThisContext();
    }

    // load web atoms mock
    loadScript("./node_modules/web-atoms-unit/web-atoms-mock.js");

    // load web atoms mvvm
    loadScript("./node_modules/web-atoms-mvvm/dist/web-atoms-mvvm.js");

    // load web atoms unit
    loadScript("./node_modules/web-atoms-unit/index.js");


    // load your tests..
    // ideally all typescript files should be transpiled into
    // one js file
    loadScript("./tests/generated-test.js");
    
    // .. so on.. you can write a script to load many files....

    var p = WebAtoms.Unit.TestRunner.instance.run(process.argv[2]);

    p.then(function(){
        process.exit();
    });

    p.catch(function(error){
        console.error(error);
        process.abort();
    });
    // run all tests
    node run-tests.js

    // run tests by filtering categories provided by comma separated categories
    node run-tests.js categories,categories

    // run tests by filtering categories provided by regular expressions
    node run-tests.js /regex/i

Running with browser

    <html>
    <head>
        <script src="//cdn.jsdelivr.net/npm/[email protected]/index.js"></script>
    </head>
    <body>
        <script>
            // make sure all other scripts are loaded on the page
            // before calling this one...
            setTimeout(function(){
                WebAtoms.Unit.TestRunner.instance.run();
            },100);
        </script>
    </body>
    </html>

Sample Test class

    /// <reference path="./node_modules/web-atoms-unit/index.d.ts">

    var Category = WebAtoms.Unit.Category;
    var Test = WebAtoms.Unit.Test;
    var Assert = WebAtoms.Unit.Assert;
    var TestItem = WebAtoms.Unit.TestItem;

    @Category("Math-Test")
    class SampleTest extends TestItem{

        
        @Test("Add")
        add():void{
            Assert.equals(4, 2 + 2);
            Assert.doesNotEqual(5, 2 + 2);
        }

        divide(a:number,b:number):number{
            if(b==0){
                throw new Error("Division by zero");
            }
            return a/b;
        }

        @Test("Divide by zero")
        divideByZero():void{
            Assert.throws('Division by zero', ()=>{
                this.divide(1,0);
            });
        }


        // async...
        @Test("Async test")
        async asyncTest():Promise<any>{

            // this.delay(100) is inbuilt
            // function, you can use any
            // promise to await
            await this.delay(100);

            Assert.equals(2,2);
        }

        @Test("Async throws")
        async asyncThrows():Promise<any>{

            // catches exception on 
            // asynchronous result

            await Assert.throwsAsync('Division by zero',
                async ():Promise<any> =>{
                    await this.delay(100);
                    this.divide(1,0);
                }
            );
        }

    }