90 lines
2.4 KiB
TypeScript
90 lines
2.4 KiB
TypeScript
/**
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* Unit tests framework
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*/
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//% weight=100 color=#0fbc11 icon=""
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namespace tests {
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class Test {
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name: string;
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handler: () => void;
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errors: string[];
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constructor(name: string, handler: () => void) {
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this.name = name;
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this.handler = handler;
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this.errors = [];
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}
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reset() {
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motors.stopAllMotors();
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motors.resetAllMotors();
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}
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run() {
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// clear state
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this.reset();
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console.log(`# ${this.name}`)
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this.handler()
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// ensure clean state after test
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this.reset();
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}
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}
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let _tests: Test[] = undefined;
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let _currentTest: Test = undefined;
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function run() {
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if (!_tests) return;
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const start = control.millis();
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console.sendToScreen();
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console.log(`${_tests.length} tests`)
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for (let i = 0; i < _tests.length; ++i) {
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const t = _currentTest = _tests[i];
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t.run();
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_currentTest = undefined;
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}
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console.log(`${_tests.map(t => t.errors.length).reduce((p, c) => p + c, 0)} X, ${Math.ceil((control.millis() - start) / 1000)}s`)
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}
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/**
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* Registers a test to run
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*/
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//% blockId=testtest block="test %name"
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export function test(name: string, handler: () => void): void {
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if (!name || !handler) return;
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if (!_tests) {
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_tests = [];
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control.runInBackground(function () {
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// should run after on start
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loops.pause(100)
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run()
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})
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}
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_tests.push(new Test(name, handler));
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}
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/**
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* Checks a boolean condition
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*/
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//% blockId=testAssert block="assert %message|%condition"
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export function assert(message: string, condition: boolean) {
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if (!condition) {
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console.log(` X ${message || ''}`)
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if (_currentTest)
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_currentTest.errors.push(message);
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}
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}
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/**
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* Checks that 2 values are close to each other
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* @param expected what the value should be
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* @param actual what the value was
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* @param tolerance the acceptable error margin
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*/
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export function assertClose(name: string, expected: number, actual: number, tolerance: number) {
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assert(`${name} ${expected} != ${actual} +-${tolerance}`, Math.abs(expected - actual) <= tolerance);
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}
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}
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