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2913063924
* move assets out, get webpack dev working * update docs to reference superset-frontend * draw the rest of the owl * fix docs * fix webpack script * rats * correct docs * fix tox dox
111 lines
3.1 KiB
TypeScript
111 lines
3.1 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 { safeStringify } from '../../../src/utils/safeStringify';
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class Noise {
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public next: Noise;
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}
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describe('Stringify utility testing', () => {
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it('correctly parses a simple object just like JSON', () => {
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const noncircular = {
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b: 'foo',
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c: 'bar',
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d: [
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{
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e: 'hello',
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f: ['world'],
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},
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{
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e: 'hello',
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f: ['darkness', 'my', 'old', 'friend'],
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},
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],
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};
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expect(safeStringify(noncircular)).toEqual(JSON.stringify(noncircular));
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// Checking that it works with quick-deepish-copies as well.
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expect(JSON.parse(safeStringify(noncircular))).toEqual(JSON.parse(JSON.stringify(noncircular)));
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});
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it('handles simple circular json as expected', () => {
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const ping = new Noise();
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const pong = new Noise();
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const pang = new Noise();
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ping.next = pong;
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pong.next = ping;
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// ping.next is pong (the circular reference) now
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const safeString = safeStringify(ping);
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ping.next = pang;
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// ping.next is pang now, which has no circular reference, so it's safe to use JSON.stringify
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const ordinaryString = JSON.stringify(ping);
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expect(safeString).toEqual(ordinaryString);
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});
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it('creates a parseable object even when the input is circular', () => {
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const ping = new Noise();
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const pong = new Noise();
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ping.next = pong;
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pong.next = ping;
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const newNoise: Noise = JSON.parse(safeStringify(ping));
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expect(newNoise).toBeTruthy();
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expect(newNoise.next).toEqual({});
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});
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it('does not remove noncircular duplicates', () => {
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const a = {
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foo: 'bar',
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};
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const repeating = {
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first: a,
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second: a,
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third: a,
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};
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expect(safeStringify(repeating)).toEqual(JSON.stringify(repeating));
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});
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it('does not remove nodes with empty objects', () => {
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const emptyObjectValues = {
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a: {},
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b: 'foo',
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c: {
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d: 'good data here',
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e: {},
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},
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};
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expect(safeStringify(emptyObjectValues)).toEqual(JSON.stringify(emptyObjectValues));
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});
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it('does not remove nested same keys', () => {
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const nestedKeys = {
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a: 'b',
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c: {
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a: 'd',
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x: 'y',
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},
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};
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expect(safeStringify(nestedKeys)).toEqual(JSON.stringify(nestedKeys));
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});
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});
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