local pathutil = require('oil.pathutil')
describe('pathutil', function()
  it('calculates parent path', function()
    local cases = {
      { '/foo/bar', '/foo/' },
      { '/foo/bar/', '/foo/' },
      { '/', '/' },
      { '', '' },
      { 'foo/bar/', 'foo/' },
      { 'foo', '' },
    }
    for _, case in ipairs(cases) do
      local input, expected = unpack(case)
      local output = pathutil.parent(input)
      assert.equals(expected, output, string.format('Parent path "%s" failed', input))
    end
  end)

  it('calculates basename', function()
    local cases = {
      { '/foo/bar', 'bar' },
      { '/foo/bar/', 'bar' },
      { '/', nil },
      { '', nil },
    }
    for _, case in ipairs(cases) do
      local input, expected = unpack(case)
      local output = pathutil.basename(input)
      assert.equals(expected, output, string.format('Basename "%s" failed', input))
    end
  end)
end)