Create TriStateCheckbox.spec.js

src/components/tristatecheckbox/TriStateCheckbox.spec.js

@@ -0,0 +1,47 @@
+import { mount } from '@vue/test-utils';
+import TriStateCheckbox from './TriStateCheckbox.vue';
+
+describe('TriStateCheckbox.vue', () => {
+    let wrapper;
+
+    beforeEach(() => {
+        wrapper = mount(TriStateCheckbox, {
+            props: {
+                modelValue: null
+            }
+        });
+    });
+
+    it('is TriStateCheckbox exist', () => {
+        expect(wrapper.find('.p-checkbox.p-component').exists()).toBe(true);
+    });
+
+    it('is state changed', async () => {
+        await wrapper.vm.onClick({});
+
+        expect(wrapper.emitted()['update:modelValue'][0]).toEqual([true]);
+
+        await wrapper.setProps({modelValue: true});
+        await wrapper.vm.onClick({});
+
+        expect(wrapper.emitted()['update:modelValue'][1]).toEqual([false]);
+
+        await wrapper.setProps({modelValue: false});
+        await wrapper.vm.onClick({});
+
+        expect(wrapper.emitted()['update:modelValue'][2]).toEqual([null]);
+    });
+
+    it('is icon chenaged', async () => {
+        expect(wrapper.find('.p-checkbox-icon').classes()).not.toContain('pi-check');
+        expect(wrapper.find('.p-checkbox-icon').classes()).not.toContain('pi-times');
+
+        await wrapper.setProps({modelValue: true});
+
+        expect(wrapper.find('.p-checkbox-icon').classes()).toContain('pi-check');
+
+        await wrapper.setProps({modelValue: false});
+
+        expect(wrapper.find('.p-checkbox-icon').classes()).toContain('pi-times');
+    });
+});