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
100 lines
4.1 KiB
TypeScript
100 lines
4.1 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 { evalExpression, isValidExpression } from '@superset-ui/core';
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test('evalExpression evaluates constants correctly', () => {
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expect(evalExpression('0', 10)).toEqual(0);
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expect(evalExpression('0.123456', 0)).toEqual(0.123456);
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expect(evalExpression('789', 100)).toEqual(789);
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});
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test('evalExpression evaluates infinities correctly', () => {
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const formula = 'x/0';
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expect(evalExpression(formula, 1)).toEqual(Infinity);
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expect(evalExpression(formula, -1)).toEqual(-Infinity);
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});
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test('evalExpression evaluates powers correctly', () => {
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const formula = '2^(x/2)*100';
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expect(evalExpression(formula, 0)).toEqual(100);
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expect(evalExpression(formula, 1)).toEqual(141.4213562373095);
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expect(evalExpression(formula, 2)).toEqual(200);
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});
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test('evalExpression ignores whitespace and variables on left hand side of equals sign', () => {
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expect(evalExpression('y=x+1', 1)).toEqual(2);
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expect(evalExpression('y = x - 1', 1)).toEqual(0);
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});
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test('evalExpression evaluates custom operators correctly', () => {
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const equalsExpression = 'x == 10';
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expect(evalExpression(equalsExpression, 5)).toEqual(0);
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expect(evalExpression(equalsExpression, 10)).toEqual(1);
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expect(evalExpression(equalsExpression, 10.1)).toEqual(0);
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const closedRange = '(x > 0) and (x < 10)';
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expect(evalExpression(closedRange, 0)).toEqual(0);
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expect(evalExpression(closedRange, 5)).toEqual(1);
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expect(evalExpression(closedRange, 10)).toEqual(0);
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const openRange = '(x >= 0) and (x <= 10)';
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expect(evalExpression(openRange, -0.1)).toEqual(0);
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expect(evalExpression(openRange, 0)).toEqual(1);
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expect(evalExpression(openRange, 5)).toEqual(1);
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expect(evalExpression(openRange, 10)).toEqual(1);
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expect(evalExpression(openRange, 10.1)).toEqual(0);
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const orRange = '(x < 0) or (x > 10)';
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expect(evalExpression(orRange, -0.1)).toEqual(1);
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expect(evalExpression(orRange, 0)).toEqual(0);
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expect(evalExpression(orRange, 5)).toEqual(0);
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expect(evalExpression(orRange, 10)).toEqual(0);
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expect(evalExpression(orRange, 10.1)).toEqual(1);
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// other less used operators
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expect(evalExpression('5 & x', 3)).toEqual(1);
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expect(evalExpression('5 | x', 3)).toEqual(7);
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expect(evalExpression('5 xor x', 2)).toEqual(7);
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// complex combinations
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const complexExpression =
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'20.51*(x<1577836800000)+20.2((x<15805152000000)&(x>=1577836800000))';
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expect(evalExpression(complexExpression, 0)).toEqual(20.51);
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expect(evalExpression(complexExpression, 1000)).toEqual(20.51);
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expect(evalExpression(complexExpression, 1577836800000)).toEqual(20.2);
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expect(evalExpression(complexExpression, 15805151999999)).toEqual(20.2);
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expect(evalExpression(complexExpression, 15805152000000)).toEqual(0);
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expect(evalExpression(complexExpression, 15805159000000)).toEqual(0);
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});
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test('isValidExpression correctly identifies invalid formulas', () => {
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expect(isValidExpression('foobar')).toEqual(false);
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expect(isValidExpression('x+')).toEqual(false);
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expect(isValidExpression('z+1')).toEqual(false);
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});
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test('isValidExpression correctly identifies valid formulas', () => {
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expect(isValidExpression('x')).toEqual(true);
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expect(isValidExpression('x+1')).toEqual(true);
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expect(isValidExpression('y=x-1')).toEqual(true);
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expect(isValidExpression('y = x - 1')).toEqual(true);
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expect(isValidExpression('y = (x < 100 and x > 0) * 100')).toEqual(true);
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});
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