/
library.test.js
393 lines (343 loc) · 13.9 KB
/
library.test.js
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
/*
* Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one
* or more contributor license agreements. Licensed under the Elastic License
* 2.0 and the Server Side Public License, v 1; you may not use this file except
* in compliance with, at your election, the Elastic License 2.0 or the Server
* Side Public License, v 1.
*/
/*
TODO: These tests are wildly imcomplete
Need tests for spacing, etc
*/
import { evaluate, parse } from '@kbn/tinymath';
function variableEqual(value) {
return expect.objectContaining({ type: 'variable', value });
}
function functionEqual(name, args) {
return expect.objectContaining({ type: 'function', name, args });
}
function namedArgumentEqual(name, value) {
return expect.objectContaining({ type: 'namedArgument', name, value });
}
describe('Parser', () => {
describe('Numbers', () => {
it('integers', () => {
expect(parse('10')).toEqual(10);
});
it('floats', () => {
expect(parse('10.5')).toEqual(10.5);
});
it('negatives', () => {
expect(parse('-10')).toEqual(-10);
expect(parse('-10.5')).toEqual(-10.5);
});
});
describe('Math', () => {
it('converts basic symbols into left-to-right pairs', () => {
expect(parse('a + b + c - d')).toEqual({
args: [
{
name: 'add',
type: 'function',
args: [
{
name: 'add',
type: 'function',
args: [
expect.objectContaining({ location: { min: 0, max: 2 } }),
expect.objectContaining({ location: { min: 3, max: 6 } }),
],
},
expect.objectContaining({ location: { min: 7, max: 10 } }),
],
},
expect.objectContaining({ location: { min: 11, max: 13 } }),
],
name: 'subtract',
type: 'function',
text: 'a + b + c - d',
location: { min: 0, max: 13 },
});
});
});
describe('Variables', () => {
it('strings', () => {
expect(parse('f')).toEqual(variableEqual('f'));
expect(parse('foo')).toEqual(variableEqual('foo'));
expect(parse('foo1')).toEqual(variableEqual('foo1'));
expect(() => parse('1foo1')).toThrow('but "f" found');
});
it('strings with spaces', () => {
expect(parse(' foo ')).toEqual(variableEqual('foo'));
expect(() => parse(' foo bar ')).toThrow('but "b" found');
});
it('allowed characters', () => {
expect(parse('_foo')).toEqual(variableEqual('_foo'));
expect(parse('@foo')).toEqual(variableEqual('@foo'));
expect(parse('.foo')).toEqual(variableEqual('.foo'));
expect(parse('-foo')).toEqual(variableEqual('-foo'));
expect(parse('_foo0')).toEqual(variableEqual('_foo0'));
expect(parse('@foo0')).toEqual(variableEqual('@foo0'));
expect(parse('.foo0')).toEqual(variableEqual('.foo0'));
expect(parse('-foo0')).toEqual(variableEqual('-foo0'));
});
});
describe('quoted variables', () => {
it('strings with double quotes', () => {
expect(parse('"foo"')).toEqual(variableEqual('foo'));
expect(parse('"f b"')).toEqual(variableEqual('f b'));
expect(parse('"foo bar"')).toEqual(variableEqual('foo bar'));
expect(parse('"foo bar fizz buzz"')).toEqual(variableEqual('foo bar fizz buzz'));
expect(parse('"foo bar baby"')).toEqual(variableEqual('foo bar baby'));
expect(parse(`"f'oo"`)).toEqual(variableEqual(`f'oo`));
});
it('strings with single quotes', () => {
/* eslint-disable prettier/prettier */
expect(parse("'foo'")).toEqual(variableEqual('foo'));
expect(parse("'f b'")).toEqual(variableEqual('f b'));
expect(parse("'foo bar'")).toEqual(variableEqual('foo bar'));
expect(parse("'foo bar fizz buzz'")).toEqual(variableEqual('foo bar fizz buzz'));
expect(parse("'foo bar baby'")).toEqual(variableEqual('foo bar baby'));
expect(parse("' foo bar'")).toEqual(variableEqual(" foo bar"));
expect(parse("'foo bar '")).toEqual(variableEqual("foo bar "));
expect(parse("'0foo'")).toEqual(variableEqual("0foo"));
expect(parse("' foo bar'")).toEqual(variableEqual(" foo bar"));
expect(parse("'foo bar '")).toEqual(variableEqual("foo bar "));
expect(parse("'0foo'")).toEqual(variableEqual("0foo"));
expect(parse(`'f"oo'`)).toEqual(variableEqual(`f"oo`));
/* eslint-enable prettier/prettier */
});
it('allowed characters', () => {
expect(parse('"_foo bar"')).toEqual(variableEqual('_foo bar'));
expect(parse('"@foo bar"')).toEqual(variableEqual('@foo bar'));
expect(parse('".foo bar"')).toEqual(variableEqual('.foo bar'));
expect(parse('"-foo bar"')).toEqual(variableEqual('-foo bar'));
expect(parse('"_foo0 bar1"')).toEqual(variableEqual('_foo0 bar1'));
expect(parse('"@foo0 bar1"')).toEqual(variableEqual('@foo0 bar1'));
expect(parse('".foo0 bar1"')).toEqual(variableEqual('.foo0 bar1'));
expect(parse('"-foo0 bar1"')).toEqual(variableEqual('-foo0 bar1'));
expect(parse('" foo bar"')).toEqual(variableEqual(' foo bar'));
expect(parse('"foo bar "')).toEqual(variableEqual('foo bar '));
expect(parse('"0foo"')).toEqual(variableEqual('0foo'));
expect(parse('" foo bar"')).toEqual(variableEqual(' foo bar'));
expect(parse('"foo bar "')).toEqual(variableEqual('foo bar '));
expect(parse('"0foo"')).toEqual(variableEqual('0foo'));
});
});
describe('Functions', () => {
it('no arguments', () => {
expect(parse('foo()')).toEqual(functionEqual('foo', []));
});
it('arguments', () => {
expect(parse('foo(5,10)')).toEqual(functionEqual('foo', [5, 10]));
});
it('arguments with strings', () => {
expect(parse('foo("string with spaces")')).toEqual(
functionEqual('foo', [variableEqual('string with spaces')])
);
expect(parse("foo('string with spaces')")).toEqual(
functionEqual('foo', [variableEqual('string with spaces')])
);
});
it('named only', () => {
expect(parse('foo(q=10)')).toEqual(functionEqual('foo', [namedArgumentEqual('q', 10)]));
});
it('named argument is numeric', () => {
expect(parse('foo(q=10.1234e5)')).toEqual(
functionEqual('foo', [namedArgumentEqual('q', 10.1234e5)])
);
});
it('named argument is empty string', () => {
expect(parse('foo(q="")')).toEqual(functionEqual('foo', [namedArgumentEqual('q', '')]));
expect(parse(`foo(q='')`)).toEqual(functionEqual('foo', [namedArgumentEqual('q', '')]));
});
it('named and positional', () => {
expect(parse('foo(ref, q="bar")')).toEqual(
functionEqual('foo', [variableEqual('ref'), namedArgumentEqual('q', 'bar')])
);
expect(parse(`foo(ref, q='ba"r')`)).toEqual(
functionEqual('foo', [variableEqual('ref'), namedArgumentEqual('q', `ba"r`)])
);
});
it('numerically named', () => {
expect(() => parse('foo(1=2)')).toThrow('but "(" found');
});
it('multiple named', () => {
expect(parse('foo(q_param="bar", offset="1d")')).toEqual(
functionEqual('foo', [
namedArgumentEqual('q_param', 'bar'),
namedArgumentEqual('offset', '1d'),
])
);
});
it('multiple named and positional', () => {
expect(parse('foo(q="bar", ref, offset="1d", 100)')).toEqual(
functionEqual('foo', [
namedArgumentEqual('q', 'bar'),
variableEqual('ref'),
namedArgumentEqual('offset', '1d'),
100,
])
);
});
it('duplicate named', () => {
expect(parse('foo(q="bar", q="test")')).toEqual(
functionEqual('foo', [namedArgumentEqual('q', 'bar'), namedArgumentEqual('q', 'test')])
);
});
it('incomplete named', () => {
expect(() => parse('foo(a=)')).toThrow('but "(" found');
expect(() => parse('foo(=a)')).toThrow('but "(" found');
});
it('invalid named', () => {
expect(() => parse('foo(offset-type="1d")')).toThrow('but "(" found');
});
it('named with complex strings', () => {
expect(parse(`foo(filter='😀 > "\ttab"')`)).toEqual(
functionEqual('foo', [namedArgumentEqual('filter', `😀 > "\ttab"`)])
);
});
it('named with escape characters', () => {
expect(parse(`foo(filter='Women\\'s Clothing')`)).toEqual(
functionEqual('foo', [namedArgumentEqual('filter', `Women's Clothing`)])
);
expect(parse(`foo(filter="\\"Quoted inner string\\"")`)).toEqual(
functionEqual('foo', [namedArgumentEqual('filter', `"Quoted inner string"`)])
);
});
});
it('Missing expression', () => {
expect(() => parse(undefined)).toThrow('Missing expression');
expect(() => parse(null)).toThrow('Missing expression');
});
it('Failed parse', () => {
expect(() => parse('')).toThrow('Failed to parse expression');
});
it('Not a string', () => {
expect(() => parse(3)).toThrow('Expression must be a string');
});
});
describe('Evaluate', () => {
it('numbers', () => {
expect(evaluate('10')).toEqual(10);
});
it('variables', () => {
expect(evaluate('foo', { foo: 10 })).toEqual(10);
expect(evaluate('bar', { bar: [1, 2] })).toEqual([1, 2]);
});
it('variables with spaces', () => {
expect(evaluate('"foo bar"', { 'foo bar': 10 })).toEqual(10);
expect(evaluate('"key with many spaces in it"', { 'key with many spaces in it': 10 })).toEqual(
10
);
});
it('variables with dots', () => {
expect(evaluate('foo.bar', { 'foo.bar': 20 })).toEqual(20);
expect(evaluate('"is.null"', { 'is.null': null })).toEqual(null);
expect(evaluate('"is.false"', { 'is.null': null, 'is.false': false })).toEqual(false);
expect(evaluate('"with space.val"', { 'with space.val': 42 })).toEqual(42);
});
it('variables with dot notation', () => {
expect(evaluate('foo.bar', { foo: { bar: 20 } })).toEqual(20);
expect(evaluate('foo.bar[0].baz', { foo: { bar: [{ baz: 30 }, { beer: 40 }] } })).toEqual(30);
expect(evaluate('"is.false"', { is: { null: null, false: false } })).toEqual(false);
});
it('equations', () => {
expect(evaluate('3 + 4')).toEqual(7);
expect(evaluate('10 - 2')).toEqual(8);
expect(evaluate('8 + 6 / 3')).toEqual(10);
expect(evaluate('10 * (1 + 2)')).toEqual(30);
expect(evaluate('(3 - 4) * 10')).toEqual(-10);
expect(evaluate('-1 - -12')).toEqual(11);
expect(evaluate('5/20')).toEqual(0.25);
expect(evaluate('1 + 1 + 2 + 3 + 12')).toEqual(19);
expect(evaluate('100 / 10 / 10')).toEqual(1);
expect(evaluate('0 * 1 - 100 / 10 / 10')).toEqual(-1);
expect(evaluate('100 / (10 / 10)')).toEqual(100);
});
it('equations with functions', () => {
expect(evaluate('3 + multiply(10, 4)')).toEqual(43);
expect(evaluate('3 + multiply(10, 4, 5)')).toEqual(203);
});
it('equations with trigonometry', () => {
expect(evaluate('pi()')).toEqual(Math.PI);
expect(evaluate('sin(degtorad(0))')).toEqual(0);
expect(evaluate('sin(degtorad(180))')).toEqual(1.2246467991473532e-16);
expect(evaluate('cos(degtorad(0))')).toEqual(1);
expect(evaluate('cos(degtorad(180))')).toEqual(-1);
expect(evaluate('tan(degtorad(0))')).toEqual(0);
expect(evaluate('tan(degtorad(180))')).toEqual(-1.2246467991473532e-16);
});
it('equations with variables', () => {
expect(evaluate('3 + foo', { foo: 5 })).toEqual(8);
expect(evaluate('3 + foo', { foo: [5, 10] })).toEqual([8, 13]);
expect(evaluate('3 + foo', { foo: 5 })).toEqual(8);
expect(evaluate('sum(foo)', { foo: [5, 10, 15] })).toEqual(30);
expect(evaluate('90 / sum(foo)', { foo: [5, 10, 15] })).toEqual(3);
expect(evaluate('multiply(foo, bar)', { foo: [1, 2, 3], bar: [4, 5, 6] })).toEqual([4, 10, 18]);
});
it('equations with quoted variables', () => {
expect(evaluate('"b" * 7', { b: 3 })).toEqual(21);
expect(evaluate('"space name" * 2', { 'space name': [1, 2, 21] })).toEqual([2, 4, 42]);
expect(evaluate('sum("space name")', { 'space name': [1, 2, 21] })).toEqual(24);
});
it('throws on named arguments', () => {
expect(() => evaluate('sum(invalid=a)')).toThrow('Named arguments are not supported');
});
it('equations with injected functions', () => {
expect(
evaluate(
'plustwo(foo)',
{ foo: 5 },
{
plustwo: function (a) {
return a + 2;
},
}
)
).toEqual(7);
expect(
evaluate('negate(1)', null, {
negate: function (a) {
return -a;
},
})
).toEqual(-1);
expect(
evaluate('stringify(2)', null, {
stringify: function (a) {
return '' + a;
},
})
).toEqual('2');
});
it('equations with arrays using special operator functions', () => {
expect(evaluate('foo + bar', { foo: [1, 2, 3], bar: [4, 5, 6] })).toEqual([5, 7, 9]);
expect(evaluate('foo - bar', { foo: [1, 2, 3], bar: [4, 5, 6] })).toEqual([-3, -3, -3]);
expect(evaluate('foo * bar', { foo: [1, 2, 3], bar: [4, 5, 6] })).toEqual([4, 10, 18]);
expect(evaluate('foo / bar', { foo: [1, 2, 3], bar: [4, 5, 6] })).toEqual([
1 / 4,
2 / 5,
3 / 6,
]);
});
it('missing expression', () => {
expect(() => evaluate('')).toThrow('Failed to parse expression');
});
it('missing referenced scope when used in injected function', () => {
expect(() =>
evaluate('increment(foo)', null, {
increment: function (a) {
return a + 1;
},
})
).toThrow('Unknown variable: foo');
});
it('invalid context datatypes', () => {
expect(evaluate('mean(foo)', { foo: [true, true, false] })).toBeNaN();
expect(evaluate('mean(foo + bar)', { foo: [true, true, false], bar: [1, 2, 3] })).toBeNaN();
expect(evaluate('mean(foo)', { foo: ['dog', 'cat', 'mouse'] })).toBeNaN();
expect(evaluate('mean(foo + 2)', { foo: ['dog', 'cat', 'mouse'] })).toBeNaN();
expect(evaluate('foo + bar', { foo: NaN, bar: [4, 5, 6] })).toBeNaN();
});
});