Function TestGroupedOpCodes

internal/difflib/difflib_test.go:61–103

(t *testing.T)

}

func TestGroupedOpCodes(t *testing.T) {
	a := []string{}
	for i := 0; i != 39; i++ {
		a = append(a, fmt.Sprintf("%02d", i))
	}
	b := []string{}
	b = append(b, a[:8]...)
	b = append(b, " i")
	b = append(b, a[8:19]...)
	b = append(b, " x")
	b = append(b, a[20:22]...)
	b = append(b, a[27:34]...)
	b = append(b, " y")
	b = append(b, a[35:]...)
	s := NewMatcher(a, b)
	w := &bytes.Buffer{}
	for _, g := range s.GetGroupedOpCodes(-1) {
		fmt.Fprintf(w, "group\n")
		for _, op := range g {
			fmt.Fprintf(w, "  %s, %d, %d, %d, %d\n", string(op.Tag),
				op.I1, op.I2, op.J1, op.J2)
		}
	}
	result := string(w.Bytes())
	expected := `group
  e, 5, 8, 5, 8
  i, 8, 8, 8, 9
  e, 8, 11, 9, 12
group
  e, 16, 19, 17, 20
  r, 19, 20, 20, 21
  e, 20, 22, 21, 23
  d, 22, 27, 23, 23
  e, 27, 30, 23, 26
group
  e, 31, 34, 27, 30
  r, 34, 35, 30, 31
  e, 35, 38, 31, 34
`
	if expected != result {
		t.Errorf("unexpected op codes: \n%s", result)
	}
}

func ExampleGetUnifiedDiffString() {
	a := `one