Function TestGetOptCodes

internal/difflib/difflib_test.go:40–59

(t *testing.T)

}

func TestGetOptCodes(t *testing.T) {
	a := "qabxcd"
	b := "abycdf"
	s := NewMatcher(splitChars(a), splitChars(b))
	w := &bytes.Buffer{}
	for _, op := range s.GetOpCodes() {
		fmt.Fprintf(w, "%s a[%d:%d], (%s) b[%d:%d] (%s)\n", string(op.Tag),
			op.I1, op.I2, a[op.I1:op.I2], op.J1, op.J2, b[op.J1:op.J2])
	}
	result := string(w.Bytes())
	expected := `d a[0:1], (q) b[0:0] ()
e a[1:3], (ab) b[0:2] (ab)
r a[3:4], (x) b[2:3] (y)
e a[4:6], (cd) b[3:5] (cd)
i a[6:6], () b[5:6] (f)
`
	if expected != result {
		t.Errorf("unexpected op codes: \n%s", result)
	}
}

func TestGroupedOpCodes(t *testing.T) {
	a := []string{}