1  import * as assert from 'assert'
  2  import * as refHelper from '../lib/ref-helper'
  3  import {IGitCommandManager} from '../lib/git-command-manager'
  4  
  5  const commit = '1234567890123456789012345678901234567890'
  6  let git: IGitCommandManager
  7  
  8  describe('ref-helper tests', () => {
  9    beforeEach(() => {
 10      git = ({} as unknown) as IGitCommandManager
 11    })
 12  
 13    it('getCheckoutInfo requires git', async () => {
 14      const git = (null as unknown) as IGitCommandManager
 15      try {
 16        await refHelper.getCheckoutInfo(git, 'refs/heads/my/branch', commit)
 17        throw new Error('Should not reach here')
 18      } catch (err) {
 19        expect(err.message).toBe('Arg git cannot be empty')
 20      }
 21    })
 22  
 23    it('getCheckoutInfo requires ref or commit', async () => {
 24      try {
 25        await refHelper.getCheckoutInfo(git, '', '')
 26        throw new Error('Should not reach here')
 27      } catch (err) {
 28        expect(err.message).toBe('Args ref and commit cannot both be empty')
 29      }
 30    })
 31  
 32    it('getCheckoutInfo sha only', async () => {
 33      const checkoutInfo = await refHelper.getCheckoutInfo(git, '', commit)
 34      expect(checkoutInfo.ref).toBe(commit)
 35      expect(checkoutInfo.startPoint).toBeFalsy()
 36    })
 37  
 38    it('getCheckoutInfo refs/heads/', async () => {
 39      const checkoutInfo = await refHelper.getCheckoutInfo(
 40        git,
 41        'refs/heads/my/branch',
 42        commit
 43      )
 44      expect(checkoutInfo.ref).toBe('my/branch')
 45      expect(checkoutInfo.startPoint).toBe('refs/remotes/origin/my/branch')
 46    })
 47  
 48    it('getCheckoutInfo refs/pull/', async () => {
 49      const checkoutInfo = await refHelper.getCheckoutInfo(
 50        git,
 51        'refs/pull/123/merge',
 52        commit
 53      )
 54      expect(checkoutInfo.ref).toBe('refs/remotes/pull/123/merge')
 55      expect(checkoutInfo.startPoint).toBeFalsy()
 56    })
 57  
 58    it('getCheckoutInfo refs/tags/', async () => {
 59      const checkoutInfo = await refHelper.getCheckoutInfo(
 60        git,
 61        'refs/tags/my-tag',
 62        commit
 63      )
 64      expect(checkoutInfo.ref).toBe('refs/tags/my-tag')
 65      expect(checkoutInfo.startPoint).toBeFalsy()
 66    })
 67  
 68    it('getCheckoutInfo unqualified branch only', async () => {
 69      git.branchExists = jest.fn(async (remote: boolean, pattern: string) => {
 70        return true
 71      })
 72  
 73      const checkoutInfo = await refHelper.getCheckoutInfo(git, 'my/branch', '')
 74  
 75      expect(checkoutInfo.ref).toBe('my/branch')
 76      expect(checkoutInfo.startPoint).toBe('refs/remotes/origin/my/branch')
 77    })
 78  
 79    it('getCheckoutInfo unqualified tag only', async () => {
 80      git.branchExists = jest.fn(async (remote: boolean, pattern: string) => {
 81        return false
 82      })
 83      git.tagExists = jest.fn(async (pattern: string) => {
 84        return true
 85      })
 86  
 87      const checkoutInfo = await refHelper.getCheckoutInfo(git, 'my-tag', '')
 88  
 89      expect(checkoutInfo.ref).toBe('refs/tags/my-tag')
 90      expect(checkoutInfo.startPoint).toBeFalsy()
 91    })
 92  
 93    it('getCheckoutInfo unqualified ref only, not a branch or tag', async () => {
 94      git.branchExists = jest.fn(async (remote: boolean, pattern: string) => {
 95        return false
 96      })
 97      git.tagExists = jest.fn(async (pattern: string) => {
 98        return false
 99      })
100  
101      try {
102        await refHelper.getCheckoutInfo(git, 'my-ref', '')
103        throw new Error('Should not reach here')
104      } catch (err) {
105        expect(err.message).toBe(
106          "A branch or tag with the name 'my-ref' could not be found"
107        )
108      }
109    })
110  
111    it('getRefSpec requires ref or commit', async () => {
112      assert.throws(
113        () => refHelper.getRefSpec('', ''),
114        /Args ref and commit cannot both be empty/
115      )
116    })
117  
118    it('getRefSpec sha + refs/heads/', async () => {
119      const refSpec = refHelper.getRefSpec('refs/heads/my/branch', commit)
120      expect(refSpec.length).toBe(1)
121      expect(refSpec[0]).toBe(`+${commit}:refs/remotes/origin/my/branch`)
122    })
123  
124    it('getRefSpec sha + refs/pull/', async () => {
125      const refSpec = refHelper.getRefSpec('refs/pull/123/merge', commit)
126      expect(refSpec.length).toBe(1)
127      expect(refSpec[0]).toBe(`+${commit}:refs/remotes/pull/123/merge`)
128    })
129  
130    it('getRefSpec sha + refs/tags/', async () => {
131      const refSpec = refHelper.getRefSpec('refs/tags/my-tag', commit)
132      expect(refSpec.length).toBe(1)
133      expect(refSpec[0]).toBe(`+${commit}:refs/tags/my-tag`)
134    })
135  
136    it('getRefSpec sha only', async () => {
137      const refSpec = refHelper.getRefSpec('', commit)
138      expect(refSpec.length).toBe(1)
139      expect(refSpec[0]).toBe(commit)
140    })
141  
142    it('getRefSpec unqualified ref only', async () => {
143      const refSpec = refHelper.getRefSpec('my-ref', '')
144      expect(refSpec.length).toBe(2)
145      expect(refSpec[0]).toBe('+refs/heads/my-ref*:refs/remotes/origin/my-ref*')
146      expect(refSpec[1]).toBe('+refs/tags/my-ref*:refs/tags/my-ref*')
147    })
148  
149    it('getRefSpec refs/heads/ only', async () => {
150      const refSpec = refHelper.getRefSpec('refs/heads/my/branch', '')
151      expect(refSpec.length).toBe(1)
152      expect(refSpec[0]).toBe(
153        '+refs/heads/my/branch:refs/remotes/origin/my/branch'
154      )
155    })
156  
157    it('getRefSpec refs/pull/ only', async () => {
158      const refSpec = refHelper.getRefSpec('refs/pull/123/merge', '')
159      expect(refSpec.length).toBe(1)
160      expect(refSpec[0]).toBe('+refs/pull/123/merge:refs/remotes/pull/123/merge')
161    })
162  
163    it('getRefSpec refs/tags/ only', async () => {
164      const refSpec = refHelper.getRefSpec('refs/tags/my-tag', '')
165      expect(refSpec.length).toBe(1)
166      expect(refSpec[0]).toBe('+refs/tags/my-tag:refs/tags/my-tag')
167    })
168  })