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1const semver = require('../../');
2const diff = semver.diff;
3
4// Not implemented as we don't use it.
5
6// diff(v1, v2): Returns difference between two versions by the release type
7// (major, premajor, minor, preminor, patch, prepatch, or prerelease), or null
8// if the versions are the same.
9
10describe('test diff', () => {
11
12 it('diff(v1, v2): same versions', () => {
13 expect(diff('1', '1')).toBe(null);
14 expect(diff('1.1', '1.1')).toBe(null);
15 expect(diff('1.1.2', '1.1.2')).toBe(null);
16 expect(diff('1.1.1.1', '1.1.1.1')).toBe(null);
17 expect(diff('1.0.0.alpha.1', '1.0.0.alpha.1')).toBe(null);
18 expect(diff('1.1.2-1', '1.1.2.pre.1')).toBe(null);
19 expect(diff('1.1.2.pre.1', '1.1.2-1')).toBe(null);
20 expect(diff('2', '2.0')).toBe(null);
21 expect(diff('2.0', '2')).toBe(null);
22 expect(diff('2', '2.0.0')).toBe(null);
23 expect(diff('2.0.0', '2')).toBe(null);
24 expect(diff('2', '2.0.0.0')).toBe(null);
25 expect(diff('2.0.0.0', '2')).toBe(null);
26 });
27
28 it('diff(v1, v2): major versions', () => {
29 expect(diff('1', '3')).toBe('major');
30 expect(diff('1.1', '3.1')).toBe('major');
31 expect(diff('1.1.2', '3.0.0')).toBe('major');
32 expect(diff('1.1.2', '2.0.0')).toBe('major');
33 expect(diff('1.1.1.1', '2.0.0')).toBe('major');
34 });
35
36 it('diff(v1, v2): minor versions', () => {
37 expect(diff('1.1', '1.2')).toBe('minor');
38 expect(diff('1.1.2', '1.2.1.1')).toBe('minor');
39 expect(diff('1.1.2', '1.2.0')).toBe('minor');
40 expect(diff('1.1.2.1', '1.2.0')).toBe('minor');
41 expect(diff('1.1.2.1', '1.2.0.1')).toBe('minor');
42 });
43
44 it('diff(v1, v2): patch versions', () => {
45 expect(diff('1.1.2', '1.1.3')).toBe('patch');
46 expect(diff('1.1.2', '1.1.2.1')).toBe('patch');
47 expect(diff('1.1.2.1', '1.1.3')).toBe('patch');
48 expect(diff('1.1.2.1', '1.1.3.2.1')).toBe('patch');
49 expect(diff('1.1.2.1', '1.1.2.1.1.1.2')).toBe('patch');
50 expect(diff('1.1.2.1.1.1.1', '1.1.2.1.1.1.2')).toBe('patch');
51 });
52
53 it('diff(v1, v2): premajor versions', () => {
54 expect(diff('1.0.0.alpha.1', '2.0.0')).toBe('premajor');
55 });
56
57 it('diff(v1, v2): preminor versions', () => {
58 expect(diff('1.1.2.alpha.1', '1.2.0')).toBe('preminor');
59 });
60
61 it('diff(v1, v2): prepatch versions', () => {
62 expect(diff('1.1.2.alpha.1', '1.1.3')).toBe('prepatch');
63 expect(diff('1.1.2.3.alpha.1', '1.1.2.alpha.2')).toBe('prepatch');
64 expect(diff('1.1.2.3.alpha.1', '1.1.2.4.alpha.2')).toBe('prepatch');
65 expect(diff('1.1.2.alpha.1', '1.1.2.1')).toBe('prepatch');
66 });
67
68 it('diff(v1, v2): prerelease versions', () => {
69 expect(diff('1.1.2.alpha.1', '1.1.2.alpha.2')).toBe('prerelease');
70 expect(diff('1.1.2.3.alpha.1', '1.1.2.3.alpha.2')).toBe('prerelease');
71 expect(diff('1.alpha.1', '1')).toBe('prerelease');
72 })
73});