add testcase for issue #1396

src/test/java/com/alibaba/druid/bvt/sql/mysql/update/MySqlUpdateTest_9.java

@@ -0,0 +1,75 @@
+/*
+ * Copyright 1999-2101 Alibaba Group Holding Ltd.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.alibaba.druid.bvt.sql.mysql.update;
+
+import com.alibaba.druid.sql.MysqlTest;
+import com.alibaba.druid.sql.SQLUtils;
+import com.alibaba.druid.sql.ast.SQLStatement;
+import com.alibaba.druid.sql.dialect.mysql.parser.MySqlStatementParser;
+import com.alibaba.druid.sql.dialect.mysql.visitor.MySqlSchemaStatVisitor;
+import com.alibaba.druid.stat.TableStat;
+import com.alibaba.druid.stat.TableStat.Column;
+import org.junit.Assert;
+
+import java.util.List;
+
+public class MySqlUpdateTest_9 extends MysqlTest {
+
+    public void test_0() throws Exception {
+        String sql = "update tb1 a , tb2 b set a.name='abc' where a.id=b.id";
+
+        MySqlStatementParser parser = new MySqlStatementParser(sql);
+        List<SQLStatement> statementList = parser.parseStatementList();
+        SQLStatement stmt = statementList.get(0);
+        print(statementList);
+
+        Assert.assertEquals(1, statementList.size());
+
+        MySqlSchemaStatVisitor visitor = new MySqlSchemaStatVisitor();
+        stmt.accept(visitor);
+
+//        System.out.println("Tables : " + visitor.getTables());
+//        System.out.println("fields : " + visitor.getColumns());
+//        System.out.println("coditions : " + visitor.getConditions());
+//        System.out.println("orderBy : " + visitor.getOrderByColumns());
+
+        Assert.assertEquals(2, visitor.getTables().size());
+        Assert.assertEquals(3, visitor.getColumns().size());
+        // Assert.assertEquals(2, visitor.getConditions().size());
+
+        Assert.assertTrue(visitor.containsTable("tb1"));
+        Assert.assertTrue(visitor.containsTable("tb2"));
+
+        Assert.assertTrue(visitor.getColumns().contains(new Column("tb1", "id")));
+        Assert.assertTrue(visitor.getColumns().contains(new Column("tb1", "name")));
+        Assert.assertTrue(visitor.getColumns().contains(new Column("tb2", "id")));
+
+        {
+            String output = SQLUtils.toMySqlString(stmt);
+            Assert.assertEquals("UPDATE tb1 a, tb2 b\n" +
+                            "SET a.name = 'abc'\n" +
+                            "WHERE a.id = b.id", //
+                                output);
+        }
+        {
+            String output = SQLUtils.toMySqlString(stmt, SQLUtils.DEFAULT_LCASE_FORMAT_OPTION);
+            Assert.assertEquals("update tb1 a, tb2 b\n" +
+                            "set a.name = 'abc'\n" +
+                            "where a.id = b.id", //
+                                output);
+        }
+    }
+}