Vmeda.Online/src/core/singletons/tests/directives-registry.test.ts

170 lines
6.7 KiB
TypeScript

// (C) Copyright 2015 Moodle Pty Ltd.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
import { wait } from '@/testing/utils';
import { CoreDirectivesRegistry } from '@singletons/directives-registry';
const cssClassName = 'core-directives-registry-test';
const createAndRegisterInstance = (element?: HTMLElement) => {
element = element ?? document.createElement('div');
element.classList.add(cssClassName);
const instance = new DirectivesRegistryTestClass();
CoreDirectivesRegistry.register(element, instance);
return { element, instance };
};
describe('CoreDirectivesRegistry singleton', () => {
let element: HTMLElement;
let testClassInstance: DirectivesRegistryTestClass;
let testClassSecondInstance: DirectivesRegistryTestClass;
let testAltClassInstance: DirectivesRegistryAltTestClass;
beforeEach(() => {
let result = createAndRegisterInstance();
element = result.element;
testClassInstance = result.instance;
result = createAndRegisterInstance(element);
testClassSecondInstance = result.instance;
testAltClassInstance = new DirectivesRegistryAltTestClass();
CoreDirectivesRegistry.register(element, testAltClassInstance);
});
it('resolves a stored instance', () => {
expect(CoreDirectivesRegistry.resolve(element)).toEqual(testClassInstance);
expect(CoreDirectivesRegistry.resolve(element, DirectivesRegistryTestClass)).toEqual(testClassInstance);
expect(CoreDirectivesRegistry.resolve(element, DirectivesRegistryAltTestClass)).toEqual(testAltClassInstance);
expect(CoreDirectivesRegistry.resolve(element, CoreDirectivesRegistry)).toEqual(null);
expect(CoreDirectivesRegistry.resolve(document.createElement('div'))).toEqual(null);
});
it('resolves all stored instances', () => {
expect(CoreDirectivesRegistry.resolveAll(element)).toEqual(
[testClassInstance, testClassSecondInstance, testAltClassInstance],
);
expect(CoreDirectivesRegistry.resolveAll(element, DirectivesRegistryTestClass)).toEqual(
[testClassInstance, testClassSecondInstance],
);
expect(CoreDirectivesRegistry.resolveAll(element, DirectivesRegistryAltTestClass)).toEqual([testAltClassInstance]);
expect(CoreDirectivesRegistry.resolveAll(element, CoreDirectivesRegistry)).toEqual([]);
expect(CoreDirectivesRegistry.resolveAll(document.createElement('div'))).toEqual([]);
});
it('requires a stored instance', () => {
expect(CoreDirectivesRegistry.require(element)).toEqual(testClassInstance);
expect(CoreDirectivesRegistry.require(element, DirectivesRegistryTestClass)).toEqual(testClassInstance);
expect(CoreDirectivesRegistry.require(element, DirectivesRegistryAltTestClass)).toEqual(testAltClassInstance);
expect(() => CoreDirectivesRegistry.require(element, CoreDirectivesRegistry)).toThrow();
expect(() => CoreDirectivesRegistry.require(document.createElement('div'))).toThrow();
});
it('waits for directive ready', async () => {
expect(testClassInstance.isReady).toBe(false);
await CoreDirectivesRegistry.waitDirectiveReady(element);
expect(testClassInstance.isReady).toBe(true);
});
it('waits for directives ready: just one element and directive', async () => {
const result = createAndRegisterInstance();
expect(result.instance.isReady).toBe(false);
await CoreDirectivesRegistry.waitDirectivesReady(result.element, `.${cssClassName}`);
expect(result.instance.isReady).toBe(true);
expect(testClassInstance.isReady).toBe(false);
});
it('waits for directives ready: all directives, single element', async () => {
expect(testClassInstance.isReady).toBe(false);
expect(testClassSecondInstance.isReady).toBe(false);
expect(testAltClassInstance.isReady).toBe(false);
await CoreDirectivesRegistry.waitDirectivesReady(element);
expect(testClassInstance.isReady).toBe(true);
expect(testClassSecondInstance.isReady).toBe(true);
expect(testAltClassInstance.isReady).toBe(true);
});
it('waits for directives ready: filter by class, single element', async () => {
expect(testClassInstance.isReady).toBe(false);
expect(testClassSecondInstance.isReady).toBe(false);
expect(testAltClassInstance.isReady).toBe(false);
await CoreDirectivesRegistry.waitDirectivesReady(element, `.${cssClassName}`, DirectivesRegistryTestClass);
expect(testClassInstance.isReady).toBe(true);
expect(testClassSecondInstance.isReady).toBe(true);
expect(testAltClassInstance.isReady).toBe(false);
});
it('waits for directives ready: multiple elements', async () => {
const secondResult = createAndRegisterInstance();
const thirdResult = createAndRegisterInstance();
thirdResult.element.classList.remove(cssClassName); // Remove the class so the element and instance aren't treated.
const parent = document.createElement('div');
parent.appendChild(element);
parent.appendChild(secondResult.element);
parent.appendChild(thirdResult.element);
expect(testClassInstance.isReady).toBe(false);
expect(testClassSecondInstance.isReady).toBe(false);
expect(testAltClassInstance.isReady).toBe(false);
expect(secondResult.instance.isReady).toBe(false);
expect(thirdResult.instance.isReady).toBe(false);
await CoreDirectivesRegistry.waitDirectivesReady(parent, `.${cssClassName}`, DirectivesRegistryTestClass);
expect(testClassInstance.isReady).toBe(true);
expect(testClassSecondInstance.isReady).toBe(true);
expect(testAltClassInstance.isReady).toBe(false);
expect(secondResult.instance.isReady).toBe(true);
expect(thirdResult.instance.isReady).toBe(false);
});
});
class DirectivesRegistryTestClass {
randomId = Math.random();
isReady = false;
async ready(): Promise<void> {
await wait(50);
this.isReady = true;
}
}
class DirectivesRegistryAltTestClass {
randomId = Math.random();
isReady = false;
async ready(): Promise<void> {
await wait(50);
this.isReady = true;
}
}