Improve test coverage

blob_test.go

@@ -92,6 +92,7 @@ func TestBlob(t *testing.T) {
 
 	err = bw.Reopen(-1)
 	assert.T(t, err != nil)
+	assert.T(t, err.Error() != "")
 	//println(err.Error())
 
 	_, err = bw.Write(content)

config_test.go

@@ -48,11 +48,11 @@ func TestEnableTriggers(t *testing.T) {
 	defer checkClose(db, t)
 	b, err := db.AreTriggersEnabled()
 	checkNoError(t, err, "%s")
-	if !b {
+	//if !b {
 	b, err = db.EnableTriggers(true)
 	checkNoError(t, err, "%s")
 	assert.T(t, b, "cannot enable triggers")
-	}
+	//}
 }
 
 func TestEnableExtendedResultCodes(t *testing.T) {

meta_test.go

@@ -139,6 +139,7 @@ func TestColumn(t *testing.T) {
 
 	column, err = db.Column("", "test", "bim")
 	assert.T(t, err != nil, "expected error")
+	assert.T(t, err.Error() != "")
 	//println(err.Error())
 }
 

pragma.go

@@ -244,13 +244,7 @@ func (c *Conn) oneValue(query string, value interface{}) error { // no cache
 	}
 	return s.error(rv, fmt.Sprintf("Conn.oneValue(%q)", query))
 }
-func (s *Stmt) execQuery(rowCallbackHandler func(s *Stmt) error, args ...interface{}) error { // no check on column count
-	if len(args) > 0 {
-		err := s.Bind(args...)
-		if err != nil {
-			return err
-		}
-	}
+func (s *Stmt) execQuery(rowCallbackHandler func(s *Stmt) error) error { // no check on column count
 	for {
 		if ok, err := s.Next(); err != nil {
 			return err