ladybird/Tests/LibWeb/Text/input/input-number.html

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

        // 1. Input stepUp
        testPart(() => {
            const input = document.createElement('input');
            input.type = 'number';
            input.value = '10';
            input.stepUp(5);
            return input.valueAsNumber;
        });

        // 2. Input stepDown
        testPart(() => {
            const input = document.createElement('input');
            input.type = 'number';
            input.value = '10';
            input.stepUp(2);
            return input.valueAsNumber;
        });

        // 3. Input stepUp with custom step
        testPart(() => {
            const input = document.createElement('input');
            input.type = 'number';
            input.value = '10';
            input.step = '2';
            input.stepUp(2);
            return input.valueAsNumber;
        });

        // 4. Input stepDown with custom step
        testPart(() => {
            const input = document.createElement('input');
            input.type = 'number';
            input.value = '10';
            input.step = '2';
            input.stepDown(2);
            return input.valueAsNumber;
        });

        // 5. Input stepUp with custom step and max
        testPart(() => {
            const input = document.createElement('input');
            input.type = 'number';
            input.value = '10';
            input.step = '2';
            input.max = '20';
            input.stepUp(8);
            return input.valueAsNumber;
        });

        // 6. Input stepDown with custom step and min
        testPart(() => {
            const input = document.createElement('input');
            input.type = 'number';
            input.value = '10';
            input.step = '2';
            input.min = '2';
            input.stepDown(8);
            return input.valueAsNumber;
        });
    });
</script>