Commit | Line | Data |
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1e953fd9 | 1 | import { expect } from 'expect'; |
4082efc1 | 2 | |
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3 | import { CircularArray } from '../../src/utils/CircularArray'; |
4 | ||
4884b8d3 | 5 | describe('CircularArray test suite', () => { |
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6 | it('Verify that circular array can be instantiated', () => { |
7 | const circularArray = new CircularArray(); | |
8 | expect(circularArray).toBeInstanceOf(CircularArray); | |
9 | }); | |
10 | ||
11 | it('Verify circular array default size at instance creation', () => { | |
12 | const circularArray = new CircularArray(); | |
9a15316c | 13 | expect(circularArray.size).toBe(1024); |
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14 | }); |
15 | ||
16 | it('Verify that circular array size can be set at instance creation', () => { | |
17 | const circularArray = new CircularArray(1000); | |
18 | expect(circularArray.size).toBe(1000); | |
19 | }); | |
20 | ||
21 | it('Verify that circular array size and items can be set at instance creation', () => { | |
22 | let circularArray = new CircularArray(1000, 1, 2, 3, 4, 5); | |
23 | expect(circularArray.size).toBe(1000); | |
24 | expect(circularArray.length).toBe(5); | |
25 | circularArray = new CircularArray(4, 1, 2, 3, 4, 5); | |
26 | expect(circularArray.size).toBe(4); | |
27 | expect(circularArray.length).toBe(4); | |
28 | }); | |
29 | ||
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30 | it('Verify that circular array size is valid at instance creation', () => { |
31 | expect(() => new CircularArray(0.25)).toThrowError( | |
5edd8ba0 | 32 | new TypeError('Invalid circular array size: 0.25 is not a safe integer'), |
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33 | ); |
34 | expect(() => new CircularArray(-1)).toThrowError( | |
5edd8ba0 | 35 | new RangeError('Invalid circular array size: -1 < 0'), |
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36 | ); |
37 | expect(() => new CircularArray(Number.MAX_SAFE_INTEGER + 1)).toThrowError( | |
38 | new TypeError( | |
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39 | `Invalid circular array size: ${Number.MAX_SAFE_INTEGER + 1} is not a safe integer`, |
40 | ), | |
4cf1f68c | 41 | ); |
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42 | }); |
43 | ||
44 | it('Verify that circular array empty works as intended', () => { | |
45 | const circularArray = new CircularArray(); | |
46 | expect(circularArray.empty()).toBe(true); | |
47 | }); | |
48 | ||
49 | it('Verify that circular array full works as intended', () => { | |
50 | const circularArray = new CircularArray(5, 1, 2, 3, 4, 5); | |
51 | expect(circularArray.full()).toBe(true); | |
52 | }); | |
53 | ||
54 | it('Verify that circular array push works as intended', () => { | |
55 | let circularArray = new CircularArray(4); | |
56 | let arrayLength = circularArray.push(1, 2, 3, 4, 5); | |
57 | expect(arrayLength).toBe(circularArray.size); | |
58 | expect(circularArray.length).toBe(circularArray.size); | |
59 | expect(circularArray).toStrictEqual(new CircularArray(4, 2, 3, 4, 5)); | |
60 | arrayLength = circularArray.push(6, 7); | |
61 | expect(arrayLength).toBe(circularArray.size); | |
62 | expect(circularArray.length).toBe(circularArray.size); | |
63 | expect(circularArray).toStrictEqual(new CircularArray(4, 4, 5, 6, 7)); | |
64 | circularArray = new CircularArray(100); | |
65 | arrayLength = circularArray.push(1, 2, 3, 4, 5); | |
66 | expect(arrayLength).toBe(5); | |
67 | expect(circularArray.size).toBe(100); | |
68 | expect(circularArray.length).toBe(5); | |
69 | expect(circularArray).toStrictEqual(new CircularArray(100, 1, 2, 3, 4, 5)); | |
70 | }); | |
71 | ||
72 | it('Verify that circular array splice works as intended', () => { | |
73 | let circularArray = new CircularArray(1000, 1, 2, 3, 4, 5); | |
74 | let deletedItems = circularArray.splice(2); | |
75 | expect(deletedItems).toStrictEqual(new CircularArray(3, 3, 4, 5)); | |
76 | expect(circularArray.length).toBe(2); | |
77 | expect(circularArray).toStrictEqual(new CircularArray(1000, 1, 2)); | |
78 | circularArray = new CircularArray(1000, 1, 2, 3, 4, 5); | |
79 | deletedItems = circularArray.splice(2, 1); | |
80 | expect(deletedItems).toStrictEqual(new CircularArray(1, 3)); | |
81 | expect(circularArray.length).toBe(4); | |
82 | expect(circularArray).toStrictEqual(new CircularArray(1000, 1, 2, 4, 5)); | |
83 | circularArray = new CircularArray(4, 1, 2, 3, 4); | |
84 | deletedItems = circularArray.splice(2, 1, 5, 6); | |
f69c4304 | 85 | expect(deletedItems).toStrictEqual(new CircularArray(2, 3, 1)); |
4082efc1 | 86 | expect(circularArray.length).toBe(4); |
f69c4304 | 87 | expect(circularArray).toStrictEqual(new CircularArray(4, 2, 5, 6, 4)); |
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88 | }); |
89 | ||
90 | it('Verify that circular array concat works as intended', () => { | |
91 | let circularArray = new CircularArray(5, 1, 2, 3, 4, 5); | |
92 | circularArray = circularArray.concat(6, 7); | |
93 | expect(circularArray.length).toBe(5); | |
94 | expect(circularArray).toStrictEqual(new CircularArray(5, 3, 4, 5, 6, 7)); | |
95 | circularArray = new CircularArray(1); | |
96 | circularArray = circularArray.concat(6, 7); | |
97 | expect(circularArray.length).toBe(1); | |
98 | expect(circularArray).toStrictEqual(new CircularArray(1, 7)); | |
99 | }); | |
100 | ||
101 | it('Verify that circular array unshift works as intended', () => { | |
102 | let circularArray = new CircularArray(5, 1, 2, 3, 4, 5); | |
103 | let arrayLength = circularArray.unshift(6, 7); | |
104 | expect(arrayLength).toBe(5); | |
105 | expect(circularArray.length).toBe(5); | |
106 | expect(circularArray).toStrictEqual(new CircularArray(5, 6, 7, 1, 2, 3)); | |
107 | circularArray = new CircularArray(1); | |
108 | arrayLength = circularArray.unshift(6, 7); | |
109 | expect(arrayLength).toBe(1); | |
110 | expect(circularArray.length).toBe(1); | |
111 | expect(circularArray).toStrictEqual(new CircularArray(1, 6)); | |
112 | }); | |
113 | ||
114 | it('Verify that circular array resize works as intended', () => { | |
4cf1f68c | 115 | expect(() => new CircularArray().resize(0.25)).toThrowError( |
5edd8ba0 | 116 | new TypeError('Invalid circular array size: 0.25 is not a safe integer'), |
4cf1f68c | 117 | ); |
4082efc1 | 118 | expect(() => new CircularArray().resize(-1)).toThrowError( |
5edd8ba0 | 119 | new RangeError('Invalid circular array size: -1 < 0'), |
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120 | ); |
121 | expect(() => new CircularArray().resize(Number.MAX_SAFE_INTEGER + 1)).toThrowError( | |
122 | new TypeError( | |
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123 | `Invalid circular array size: ${Number.MAX_SAFE_INTEGER + 1} is not a safe integer`, |
124 | ), | |
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125 | ); |
126 | let circularArray = new CircularArray(5, 1, 2, 3, 4, 5); | |
127 | circularArray.resize(0); | |
128 | expect(circularArray.size).toBe(0); | |
129 | expect(circularArray).toStrictEqual(new CircularArray(0)); | |
130 | circularArray = new CircularArray(5, 1, 2, 3, 4, 5); | |
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131 | circularArray.resize(1); |
132 | expect(circularArray.size).toBe(1); | |
133 | expect(circularArray).toStrictEqual(new CircularArray(1, 1)); | |
134 | circularArray = new CircularArray(5, 1, 2, 3, 4, 5); | |
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135 | circularArray.resize(3); |
136 | expect(circularArray.size).toBe(3); | |
137 | expect(circularArray).toStrictEqual(new CircularArray(3, 1, 2, 3)); | |
138 | circularArray = new CircularArray(5, 1, 2, 3, 4, 5); | |
139 | circularArray.resize(8); | |
140 | expect(circularArray.size).toBe(8); | |
141 | expect(circularArray).toStrictEqual(new CircularArray(8, 1, 2, 3, 4, 5)); | |
142 | }); | |
143 | }); |