-
Notifications
You must be signed in to change notification settings - Fork 2
/
index.test.js
93 lines (77 loc) · 2.61 KB
/
index.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
/*
* decimalformat 0.1.0
* Copyright (c) 2018
* https://github.com/DeloitteDigitalAPAC/DecimalFormat/
* Licensed under the BSD 3-Clause license.
*/
'use strict';
const { DecimalFormat } = require('./index');
const TESTS = require('./tests/tests.json');
const LOCALE = require('./tests/locale.json');
expect.extend({
toFormatWith(testCase, formatter) {
const result = formatter.format(testCase.input, LOCALE);
const pass = (result === testCase.output);
const message = (pass) => {
return () => {
let value = testCase.input.toString();
if (DecimalFormat.isNegative(testCase.input)) {
value = '-' + value;
}
const hint = this.utils.matcherHint((pass ? '.not' : '') + '.toFormatWith');
const summary = `Expected value (${value}) to ${pass ? 'not be' : 'be'}:`;
const receivedString = this.utils.printReceived(result);
const expectedString = this.utils.printExpected(testCase.output);
return `${hint}\n\n${summary}\n ${expectedString}\nReceived:\n ${receivedString}`;
};
};
return {
message: message(pass),
pass: pass
};
}
});
describe('DecimalFormat', () => {
test('count()', () => {
expect(DecimalFormat.count('aaaa', 'a')).toEqual(4);
expect(DecimalFormat.count('aaaa', 'aa')).toEqual(2);
expect(DecimalFormat.count('aaaa', 'aaa')).toEqual(1);
});
test('reverseString()', () => {
expect(DecimalFormat.reverseString(' abc ')).toEqual(' cba ');
expect(DecimalFormat.reverseString('abc')).toEqual('cba');
expect(DecimalFormat.reverseString('')).toEqual('');
});
test('isNegative()', () => {
expect(DecimalFormat.isNegative(0)).toEqual(false);
expect(DecimalFormat.isNegative(+0)).toEqual(false);
expect(DecimalFormat.isNegative(-0)).toEqual(true);
expect(DecimalFormat.isNegative(1)).toEqual(false);
expect(DecimalFormat.isNegative(-1)).toEqual(true);
});
test('applyGrouping()', () => {
expect(DecimalFormat.applyGrouping('123456', 2, ',')).toEqual('12,34,56');
expect(DecimalFormat.applyGrouping('123456', 4, ',')).toEqual('12,3456');
expect(DecimalFormat.applyGrouping('123456', 6, ',')).toEqual('123456');
});
});
describe('Testing parity with Java', () => {
const testData = TESTS.reduce((accum, j) => {
if (typeof j.input === 'number') {
if (accum.hasOwnProperty(j.pattern) === false) {
accum[j.pattern] = [];
}
accum[j.pattern].push(j);
delete j.pattern;
}
return accum;
}, {});
Object.keys(testData).forEach(pattern => {
test(`With pattern: ${pattern}`, () => {
const formatter = new DecimalFormat(pattern);
testData[pattern].forEach(testCase => {
expect(testCase).toFormatWith(formatter);
});
});
});
});