Tests

JavaScript applications can be tested with tests written in JavaScript. The JavaScript test files must be located in the project folder src/test/js. All JavaScript files (*.js) found in this folder, at any level, are considered as test files.

In order to setup JavaScript tests for your application, follow these steps:

create an Add-On Library project or a Standalone Application project
define the following configuration in the build file of the project:

tasks.test {
   filter {
      includeTestsMatching("*._JsTest_*Code")
   }
}

Add these properties nside the ea:build tag (if the properties already exist, replace them):

<ea:property name="test.run.includes.pattern" value="**/_JsTest_*Code.class"/>
<ea:property name="target.main.classes" value="${basedir}/target~/test/classes"/>

add the MicroEJ JavaScript dependency in the build file of the project:

implementation("com.microej.library.runtime:js:0.13.0")

<dependency org="com.microej.library.runtime" name="js" rev="0.13.0"/>

define the platform to use to run the tests with one of the options described in Select a VEE Port section
create a file assert.js in the folder src/test/resources with the following content:

var assertionCount = 0;

function assert(value) {
        assertionCount++;
        if (value == 0) {
                print("assert " + assertionCount + " - FAILED");
        } else {
                print("assert " + assertionCount + " - PASSED");
        }
}

This method assert will be available in all tests to do assertions.

create a file test.js in the folder src/test/js and write your first test:

var a = 5;
var b = 3;
var sum = a + b;
assert(sum === 8);

build the application in the SDK or in command line with the MMM CLI

The execution of the tests produces a report available in the folder target~/test/html for the project.