pxt-ev3/libs/tests

tests

A unit test framework

Defining tests

Tests are registered as event handlers. They will automatically run once on start is finished.

tests.test("lgB set speed 10", () => {
    motors.largeB.setSpeed(10);
    loops.pause(100)
    tests.assertClose("speedB", 10, motors.largeB.speed(), 2)
});

Assertions

The library has various asserts that will register fault. Note that since exceptions are not available, assertion failure do not stop the program execution.

• assert checks a boolean condition

tests.assert("speed positive", motors.largeB.speed() > 0)

• assert close checks that a numberical value is within a particular range

tests.assertClose("speed", motors.largeB.speed(), 10, 2)

tests