remove dep on matryer/is

dialects/oci8/connection_test.go

@@ -5,26 +5,30 @@ import (
 	"testing"
 
 	"github.com/jinzhu/gorm"
-	"github.com/matryer/is"
 )
 
 func Test_Connection(t *testing.T) {
-	is := is.New(t)
 	dbDSN := os.Getenv("GORM_DSN")
 	if dbDSN == "" {
 		dbDSN = "gorm/gorm@localhost:1521/XEPDB1"
 	}
 	gDB, err := gorm.Open("oci8", dbDSN)
-	is.NoErr(err)
+	if err != nil {
+		t.Errorf("connection error: %s", err.Error())
+	}
 	db := gDB.DB()
 	q := "select sysdate from dual"
 	rows, err := db.Query(q)
-	is.NoErr(err)
+	if err != nil {
+		t.Errorf("query error: %s", err.Error())
+	}
 	defer rows.Close()
 	var thedate string
 	for rows.Next() {
 		err := rows.Scan(&thedate)
-		is.NoErr(err)
+		if err != nil {
+			t.Errorf("scan error: %s", err.Error())
+		}
 	}
 	t.Logf("The date is: %s\n", thedate)
 }