serenity/Tests/LibWeb/Text/input/canvas/transform.html

<script src="../include.js"></script>
<script>
    test(() => {
        let testCounter = 1;
        function testPart(part) {
            println(`${testCounter++}. ${JSON.stringify(part())}`);
        }

        const canvas = document.createElement("canvas");
        const context = canvas.getContext("2d");

        // 1. Default transform
        testPart(() => context.getTransform());

        // 2. Translate transform
        testPart(() => {
            context.translate(45, 45);
            return context.getTransform();
        });

        // 3. Scale transform
        testPart(() => {
            context.scale(2, 2);
            return context.getTransform();
        });

        // 4. Rotate transform
        testPart(() => {
            context.rotate(45);
            return context.getTransform();
        });

        // 5. Set transform
        testPart(() => {
            context.setTransform(1, 2, 3, 4, 5, 6);
            return context.getTransform();
        });

        // 6. Set transform by DOMMatrix2DInit
        testPart(() => {
            context.setTransform({ a: 1, b: 2, c: 3, d: 4, e: 5, f: 6 });
            return context.getTransform();
        });
    });
</script>