Add test scanning null time.

date.go

@@ -43,7 +43,7 @@ type UnixTime time.Time
 
 func (t *UnixTime) Scan(src interface{}) error {
 	if src == nil {
-		t = nil
+		//t = nil
 		return nil
 	} else if unixepoch, ok := src.(int64); ok {
 		*t = UnixTime(time.Unix(unixepoch, 0)) // local time
@@ -63,7 +63,7 @@ type JulianTime time.Time
 
 func (t *JulianTime) Scan(src interface{}) error {
 	if src == nil {
-		t = nil
+		//t = nil
 		return nil
 	} else if jd, ok := src.(float64); ok {
 		*t = JulianTime(JulianDayToLocalTime(jd)) // local time
@@ -83,7 +83,7 @@ type TimeStamp time.Time
 
 func (t *TimeStamp) Scan(src interface{}) error {
 	if src == nil {
-		t = nil
+		//t = nil
 		return nil
 	} else if txt, ok := src.(string); ok {
 		v, err := time.Parse("2006-01-02T15:04:05.999Z07:00", txt)

date_test.go

@@ -33,7 +33,7 @@ func TestBindTime(t *testing.T) {
 	}
 }
 
-func TestScan(t *testing.T) {
+func TestScanTime(t *testing.T) {
 	db := open(t)
 	defer checkClose(db, t)
 	var dt time.Time
@@ -72,6 +72,18 @@ func TestScan(t *testing.T) {
 	}
 }
 
+func TestScanNullTime(t *testing.T) {
+	db := open(t)
+	defer checkClose(db, t)
+
+	var unix UnixTime
+	err := db.OneValue("SELECT NULL", &unix)
+	checkNoError(t, err, "Error scanning null time: %#v")
+	if !(time.Time)(unix).IsZero() {
+		t.Error("Expected zero time")
+	}
+}
+
 func TestBindTimeAsString(t *testing.T) {
 	db := open(t)
 	defer checkClose(db, t)