Describe gina#command#changes
  Before all
    let Path = vital#gina#import('System.Filepath')
    let slit1 = Slit(tempname(), 1)
    call slit1.write('A/foo.txt', [])
    call slit1.write('B/foo.txt', [])
    call slit1.write('C/foo.txt', [])
    call slit1.execute('add %s', slit1.path('A/foo.txt'))
    call slit1.execute('commit --quiet -m "First"')
    call slit1.execute('checkout -b develop')
    call slit1.execute('add %s', slit1.path('B/foo.txt'))
    call slit1.execute('commit --quiet -m "Second"')
    call slit1.execute('checkout master')
    call slit1.execute('add %s', slit1.path('C/foo.txt'))
    call slit1.execute('commit --quiet -m "Thrid"')

    call slit1.write('A/foo.txt', ['changes'])
    call slit1.execute('add %s', slit1.path('A/foo.txt'))
  End

  After all
    %bwipeout!
  End

  Before
    %bwipeout!
    execute 'edit' fnameescape(Path.join(slit1.worktree, 'A', 'foo.txt'))
  End

  Describe Use cases
    It might be called without arguments
      GinaSync changes
      Assert Equals(winnr('$'), 1)
      Assert Equals(bufname('%'), printf('gina://%s:changes', slit1.refname))
      Assert Equals(getline(1, '$'), [''])
    End

    It might be called with --cached
      GinaSync changes --cached
      Assert Equals(winnr('$'), 1)
      Assert Equals(bufname('%'), printf('gina://%s:changes:cached', slit1.refname))
      Assert Equals(getline(1, '$'), [
            \ "1\t0\tA/foo.txt",
            \])
      Assert Equals(gina#action#candidates(1, line('$')), [
            \ {
            \   '__lnum': 1,
            \   'residual': [],
            \   'word': "1\t0\tA/foo.txt",
            \   'path': 'A/foo.txt',
            \   'added': '1',
            \   'removed': '0',
            \   'rev': '',
            \ },
            \])
    End

    It might be called with develop...
      GinaSync changes develop...
      Assert Equals(winnr('$'), 1)
      Assert Equals(bufname('%'), printf('gina://%s:changes/develop...', slit1.refname))
      Assert Equals(getline(1, '$'), [
            \ "0\t0\tC/foo.txt",
            \])
      Assert Equals(gina#action#candidates(1, line('$')), [
            \ {
            \   '__lnum': 1,
            \   'residual': [],
            \   'word': "0\t0\tC/foo.txt",
            \   'path': 'C/foo.txt',
            \   'added': '0',
            \   'removed': '0',
            \   'rev': 'develop...',
            \ },
            \])
    End

    It might be called on gina://valid1:show/develop...:A/foo.txt
      GinaSync show develop...:A/foo.txt
      GinaSync changes
      Assert Equals(winnr('$'), 1)
      Assert Equals(bufname('%'), printf('gina://%s:changes/develop...', slit1.refname))
      Assert Equals(getline(1, '$'), [
            \ "0\t0\tC/foo.txt",
            \])
      Assert Equals(gina#action#candidates(1, line('$')), [
            \ {
            \   '__lnum': 1,
            \   'residual': [],
            \   'word': "0\t0\tC/foo.txt",
            \   'path': 'C/foo.txt',
            \   'added': '0',
            \   'removed': '0',
            \   'rev': 'develop...',
            \ },
            \])
    End

    It might be called with --cached -- A/*.txt
      GinaSync changes --cached -- A/*.txt
      Assert Equals(winnr('$'), 1)
      Assert Equals(bufname('%'), printf('gina://%s:changes:cached:--', slit1.refname))
      Assert Equals(getline(1, '$'), [
            \ "1\t0\tA/foo.txt",
            \])
      Assert Equals(gina#action#candidates(1, line('$')), [
            \ {
            \   '__lnum': 1,
            \   'residual': ['A/*.txt'],
            \   'word': "1\t0\tA/foo.txt",
            \   'path': 'A/foo.txt',
            \   'added': '1',
            \   'removed': '0',
            \   'rev': '',
            \ },
            \])
    End

    It might be called with --cached -- A/*.vim
      GinaSync changes --cached -- A/*.vim
      Assert Equals(winnr('$'), 1)
      Assert Equals(bufname('%'), printf('gina://%s:changes:cached:--', slit1.refname))
      Assert Equals(getline(1, '$'), [''])
    End
  End
End