diff --git a/parse_test.go b/parse_test.go
index dd2799d1..2c675799 100644
--- a/parse_test.go
+++ b/parse_test.go
@@ -1274,3 +1274,66 @@ func TestNewPrivateKey(t *testing.T) {
 		}
 	}
 }
+
+// special input test
+func TestNewRRSpecial(t *testing.T) {
+	var (
+		rr     RR
+		err    error
+		expect string
+	)
+
+	rr, err = NewRR("; comment")
+	expect = ""
+	if err != nil {
+		t.Errorf("unexpect err: %s", err)
+	}
+	if rr != nil {
+		t.Errorf("unexpect result: [%s] != [%s]", rr, expect)
+	}
+
+	rr, err = NewRR("")
+	expect = ""
+	if err != nil {
+		t.Errorf("unexpect err: %s", err)
+	}
+	if rr != nil {
+		t.Errorf("unexpect result: [%s] != [%s]", rr, expect)
+	}
+
+	rr, err = NewRR("$ORIGIN foo.")
+	expect = ""
+	if err != nil {
+		t.Errorf("unexpect err: %s", err)
+	}
+	if rr != nil {
+		t.Errorf("unexpect result: [%s] != [%s]", rr, expect)
+	}
+
+	rr, err = NewRR(" ")
+	expect = ""
+	if err != nil {
+		t.Errorf("unexpect err: %s", err)
+	}
+	if rr != nil {
+		t.Errorf("unexpect result: [%s] != [%s]", rr, expect)
+	}
+
+	rr, err = NewRR("\n")
+	expect = ""
+	if err != nil {
+		t.Errorf("unexpect err: %s", err)
+	}
+	if rr != nil {
+		t.Errorf("unexpect result: [%s] != [%s]", rr, expect)
+	}
+
+	rr, err = NewRR("foo. A 1.1.1.1\nbar. A 2.2.2.2")
+	expect = "foo.\t3600\tIN\tA\t1.1.1.1"
+	if err != nil {
+		t.Errorf("unexpect err: %s", err)
+	}
+	if rr == nil || rr.String() != expect {
+		t.Errorf("unexpect result: [%s] != [%s]", rr, expect)
+	}
+}
diff --git a/zscan_test.go b/zscan_test.go
deleted file mode 100644
index 88ab8244..00000000
--- a/zscan_test.go
+++ /dev/null
@@ -1,66 +0,0 @@
-package dns
-
-import "testing"
-
-// special input test
-func TestNewRRSpecial(t *testing.T) {
-	var (
-		rr     RR
-		err    error
-		expect string
-	)
-
-	rr, err = NewRR("; comment")
-	expect = ""
-	if err != nil {
-		t.Errorf("unexpect err: %s", err)
-	}
-	if rr != nil {
-		t.Errorf("unexpect result: [%s] != [%s]", rr, expect)
-	}
-
-	rr, err = NewRR("")
-	expect = ""
-	if err != nil {
-		t.Errorf("unexpect err: %s", err)
-	}
-	if rr != nil {
-		t.Errorf("unexpect result: [%s] != [%s]", rr, expect)
-	}
-
-	rr, err = NewRR("$ORIGIN foo.")
-	expect = ""
-	if err != nil {
-		t.Errorf("unexpect err: %s", err)
-	}
-	if rr != nil {
-		t.Errorf("unexpect result: [%s] != [%s]", rr, expect)
-	}
-
-	rr, err = NewRR(" ")
-	expect = ""
-	if err != nil {
-		t.Errorf("unexpect err: %s", err)
-	}
-	if rr != nil {
-		t.Errorf("unexpect result: [%s] != [%s]", rr, expect)
-	}
-
-	rr, err = NewRR("\n")
-	expect = ""
-	if err != nil {
-		t.Errorf("unexpect err: %s", err)
-	}
-	if rr != nil {
-		t.Errorf("unexpect result: [%s] != [%s]", rr, expect)
-	}
-
-	rr, err = NewRR("foo. A 1.1.1.1\nbar. A 2.2.2.2")
-	expect = "foo.\t3600\tIN\tA\t1.1.1.1"
-	if err != nil {
-		t.Errorf("unexpect err: %s", err)
-	}
-	if rr == nil || rr.String() != expect {
-		t.Errorf("unexpect result: [%s] != [%s]", rr, expect)
-	}
-}