add tests for JdbcTemplate

src/main/java/ghast/database/DataAccessException.java

@@ -1,12 +1,28 @@
 package ghast.database;
 
+import lombok.Getter;
+
+@SuppressWarnings("java:S1165")
+@Getter
 public class DataAccessException extends RuntimeException {
 
+	private String sql;
+
 	public DataAccessException(String msg) {
 		super(msg);
 	}
 
+	public DataAccessException(String msg, String sql) {
+		this(msg);
+		this.sql = sql;
+	}
+
 	public DataAccessException(String msg, Throwable cause) {
 		super(msg, cause);
 	}
+
+	public DataAccessException(String msg, String sql, Throwable cause) {
+		this(msg, cause);
+		this.sql = sql;
+	}
 }

src/main/java/ghast/database/JdbcTemplate.java

@@ -33,7 +33,7 @@ public class JdbcTemplate implements JdbcOperations {
 			statement = connection.createStatement();
 			statement.execute(sql);
 		} catch (SQLException e) {
-			XLog.error("Error execute SQL: {0}", e.getMessage(), e);
+			throw new DataAccessException("Error execute SQL", sql, e);
 		} finally {
 			closeStatement(statement);
 			closeConnection(connection);
@@ -52,8 +52,7 @@ public class JdbcTemplate implements JdbcOperations {
 			resultSet = statement.executeQuery(sql);
 			return rse.extractData(resultSet);
 		} catch (SQLException e) {
-			XLog.error("Error execute SQL: {0}", e.getMessage(), e);
-			return null;
+			throw new DataAccessException("Error execute SQL", sql, e);
 		} finally {
 			closeResultSet(resultSet);
 			closeStatement(statement);