bug fixed for statementExecutableSqlLogEnable

src/test/java/com/alibaba/druid/bvt/sql/mysql/SQLUtilsTest.java

@@ -0,0 +1,21 @@
+package com.alibaba.druid.bvt.sql.mysql;
+
+import java.util.Arrays;
+
+import junit.framework.TestCase;
+
+import org.junit.Assert;
+
+import com.alibaba.druid.sql.SQLUtils;
+import com.alibaba.druid.util.JdbcConstants;
+
+public class SQLUtilsTest extends TestCase {
+
+    public void test_format() throws Exception {
+        String formattedSql = SQLUtils.format("select * from t where id = ?", JdbcConstants.MYSQL,
+                                              Arrays.<Object> asList("abc"));
+        Assert.assertEquals("SELECT *" + //
+                            "\nFROM t" + //
+                            "\nWHERE id = 'abc'", formattedSql);
+    }
+}