cockroachdb: fix tests with DELETE and LIMIT (#701) (#702)

Author: xiam

adapter/cockroachdb/template_test.go

@@ -251,7 +251,7 @@ func TestTemplateDelete(t *testing.T) {
 	assert := assert.New(t)
 
 	assert.Equal(
-		`DELETE FROM "artist" WHERE (name = $1)`,
+		`DELETE FROM "artist" WHERE (name = $1) LIMIT 1`,
 		b.DeleteFrom("artist").Where("name = ?", "Chavela Vargas").Limit(1).String(),
 	)
 

internal/testsuite/generic_suite.go

@@ -308,10 +308,10 @@ func (s *GenericTestSuite) TestFibonacci() {
 	s.Equal(uint64(4), total)
 
 	// Skipping.
-	res = res.Offset(1).Limit(2)
+	resWithLimit := res.Offset(1).Limit(2)
 
 	var item2 fibonacci
-	for res.Next(&item2) {
+	for resWithLimit.Next(&item2) {
 		switch item2.Input {
 		case 5:
 		case 6:
@@ -320,7 +320,7 @@ func (s *GenericTestSuite) TestFibonacci() {
 			s.T().Errorf(`Unexpected item: %v.`, item2)
 		}
 	}
-	err = res.Err()
+	err = resWithLimit.Err()
 	s.NoError(err)
 
 	err = res.Delete()