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import Vue from 'vue';
import mountComponent from 'helpers/vue_mount_component_helper';
import dropdownValueCollapsedComponent from '~/vue_shared/components/sidebar/labels_select/dropdown_value_collapsed.vue';
import { mockLabels } from './mock_data';
const createComponent = (labels = mockLabels) => {
const Component = Vue.extend(dropdownValueCollapsedComponent);
return mountComponent(Component, {
labels,
});
};
describe('DropdownValueCollapsedComponent', () => {
let vm;
beforeEach(() => {
vm = createComponent();
});
afterEach(() => {
vm.$destroy();
});
describe('computed', () => {
describe('labelsList', () => {
it('returns default text when `labels` prop is empty array', () => {
const vmEmptyLabels = createComponent([]);
expect(vmEmptyLabels.labelsList).toBe('Labels');
vmEmptyLabels.$destroy();
});
it('returns labels names separated by coma when `labels` prop has more than one item', () => {
const labels = mockLabels.concat(mockLabels);
const vmMoreLabels = createComponent(labels);
const expectedText = labels.map(label => label.title).join(', ');
expect(vmMoreLabels.labelsList).toBe(expectedText);
vmMoreLabels.$destroy();
});
it('returns labels names separated by coma with remaining labels count and `and more` phrase when `labels` prop has more than five items', () => {
const mockMoreLabels = Object.assign([], mockLabels);
for (let i = 0; i < 6; i += 1) {
mockMoreLabels.unshift(mockLabels[0]);
}
const vmMoreLabels = createComponent(mockMoreLabels);
const expectedText = `${mockMoreLabels
.slice(0, 5)
.map(label => label.title)
.join(', ')}, and ${mockMoreLabels.length - 5} more`;
expect(vmMoreLabels.labelsList).toBe(expectedText);
vmMoreLabels.$destroy();
});
it('returns first label name when `labels` prop has only one item present', () => {
const text = mockLabels.map(label => label.title).join(', ');
expect(vm.labelsList).toBe(text);
});
});
});
describe('methods', () => {
describe('handleClick', () => {
it('emits onValueClick event on component', () => {
jest.spyOn(vm, '$emit').mockImplementation(() => {});
vm.handleClick();
expect(vm.$emit).toHaveBeenCalledWith('onValueClick');
});
});
});
describe('template', () => {
it('renders component container element with tooltip`', () => {
expect(vm.$el.title).toBe(vm.labelsList);
});
it('renders tags icon element', () => {
expect(vm.$el.querySelector('[data-testid="labels-icon"]')).not.toBeNull();
});
it('renders labels count', () => {
expect(vm.$el.querySelector('span').innerText.trim()).toBe(`${vm.labels.length}`);
});
});
});
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