mirror of
https://github.com/apache/superset.git
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cb97e37a92
* chart * index and number-format * char-composition and color * connection * dimension and math-expression * models * query * time-format * residual modules * change config of jest and eslint config * wip update package.json * fix lint * WithLegend import from superset-ui/core
88 lines
2.4 KiB
TypeScript
88 lines
2.4 KiB
TypeScript
/*
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* Licensed to the Apache Software Foundation (ASF) under one
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* or more contributor license agreements. See the NOTICE file
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* distributed with this work for additional information
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* regarding copyright ownership. The ASF licenses this file
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* to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance
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* with the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing,
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* software distributed under the License is distributed on an
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* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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* KIND, either express or implied. See the License for the
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* specific language governing permissions and limitations
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* under the License.
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*/
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import { ExtensibleFunction } from '@superset-ui/core';
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describe('ExtensibleFunction', () => {
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interface Func1 {
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(): number;
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}
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class Func1 extends ExtensibleFunction {
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constructor(x: unknown) {
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super(() => x); // closure
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}
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}
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interface Func2 {
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(): number;
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}
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class Func2 extends ExtensibleFunction {
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x: unknown;
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constructor(x: unknown) {
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super(() => this.x); // arrow function, refer to its own field
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this.x = x;
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}
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// eslint-disable-next-line class-methods-use-this
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hi() {
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return 'hi';
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}
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}
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class Func3 extends ExtensibleFunction {
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x: unknown;
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constructor(x: unknown) {
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// @ts-ignore
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super(function customName() {
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// @ts-ignore
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return customName.x as unknown;
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}); // named function
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this.x = x;
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}
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}
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it('its subclass is an instance of Function', () => {
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expect(Func1).toBeInstanceOf(Function);
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expect(Func2).toBeInstanceOf(Function);
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expect(Func3).toBeInstanceOf(Function);
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});
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const func1 = new Func1(100);
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const func2 = new Func2(100);
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const func3 = new Func3(100);
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it('an instance of its subclass is executable like regular function', () => {
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expect(func1()).toEqual(100);
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expect(func2()).toEqual(100);
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});
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it('its subclass behaves like regular class with its own fields and functions', () => {
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expect(func2.x).toEqual(100);
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expect(func2.hi()).toEqual('hi');
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});
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it('its subclass can set name by passing named function to its constructor', () => {
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expect(func3.name).toEqual('customName');
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});
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});
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