t.Run(c.name, func(t *testing.T) {
			out := transitiveClosure(c.in)
			if !reflect.DeepEqual(c.expected, out) {
				t.Errorf("expected: %#v, got %#v", c.expected, out)
			}
		})
	}
}

func TestHasTestFiles(t *testing.T) {
	cases := []struct {
		input  []string
		expect bool
	}{{
		input:  nil,
		expect: false,
	}, {
		input:  []string{},
		expect: false,
	}, {
		input:  []string{"foo.go"},