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import { GlButton } from '@gitlab/ui';
import { shallowMount } from '@vue/test-utils';
import { nextTick } from 'vue';
import DesignScaler from '~/design_management/components/design_scaler.vue';
describe('Design management design scaler component', () => {
let wrapper;
const getButtons = () => wrapper.findAllComponents(GlButton);
const getDecreaseScaleButton = () => getButtons().at(0);
const getResetScaleButton = () => getButtons().at(1);
const getIncreaseScaleButton = () => getButtons().at(2);
const setScale = (scale) => wrapper.vm.setScale(scale);
const createComponent = () => {
wrapper = shallowMount(DesignScaler, {
propsData: {
maxScale: 2,
},
});
};
beforeEach(() => {
createComponent();
});
afterEach(() => {
wrapper.destroy();
wrapper = null;
});
describe('when `scale` value is greater than 1', () => {
beforeEach(async () => {
setScale(1.6);
await nextTick();
});
it('emits @scale event when "reset" button clicked', () => {
getResetScaleButton().vm.$emit('click');
expect(wrapper.emitted('scale')[1]).toEqual([1]);
});
it('emits @scale event when "decrement" button clicked', async () => {
getDecreaseScaleButton().vm.$emit('click');
expect(wrapper.emitted('scale')[1]).toEqual([1.4]);
});
it('enables the "reset" button', () => {
const resetButton = getResetScaleButton();
expect(resetButton.exists()).toBe(true);
expect(resetButton.props('disabled')).toBe(false);
});
it('enables the "decrement" button', () => {
const decrementButton = getDecreaseScaleButton();
expect(decrementButton.exists()).toBe(true);
expect(decrementButton.props('disabled')).toBe(false);
});
});
it('emits @scale event when "plus" button clicked', () => {
getIncreaseScaleButton().vm.$emit('click');
expect(wrapper.emitted('scale')).toEqual([[1.2]]);
});
it('computes & increments correct stepSize based on maxScale', async () => {
wrapper.setProps({ maxScale: 11 });
await nextTick();
getIncreaseScaleButton().vm.$emit('click');
await nextTick();
expect(wrapper.emitted().scale[0][0]).toBe(3);
});
describe('when `scale` value is 1', () => {
it('disables the "reset" button', () => {
const resetButton = getResetScaleButton();
expect(resetButton.exists()).toBe(true);
expect(resetButton.props('disabled')).toBe(true);
});
it('disables the "decrement" button', () => {
const decrementButton = getDecreaseScaleButton();
expect(decrementButton.exists()).toBe(true);
expect(decrementButton.props('disabled')).toBe(true);
});
});
describe('when `scale` value is maximum', () => {
beforeEach(async () => {
setScale(2);
await nextTick();
});
it('disables the "increment" button', () => {
const incrementButton = getIncreaseScaleButton();
expect(incrementButton.exists()).toBe(true);
expect(incrementButton.props('disabled')).toBe(true);
});
});
});
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