improve JdbcUtils

src/test/java/com/alibaba/druid/bvt/utils/JdbcUtilsTest.java

@@ -0,0 +1,67 @@
+package com.alibaba.druid.bvt.utils;
+
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+
+import junit.framework.Assert;
+import junit.framework.TestCase;
+
+import com.alibaba.druid.pool.DruidDataSource;
+import com.alibaba.druid.util.JdbcUtils;
+
+public class JdbcUtilsTest extends TestCase {
+
+    private DruidDataSource dataSource;
+
+    protected void setUp() throws Exception {
+        dataSource = new DruidDataSource();
+        dataSource.setMinIdle(1);
+        dataSource.setUrl("jdbc:h2:mem:test;");
+        dataSource.setTestOnBorrow(false);
+
+        JdbcUtils.execute(dataSource, "CREATE TABLE user (id INT, name VARCHAR(40))");
+
+    }
+
+    protected void tearDown() throws Exception {
+        JdbcUtils.execute(dataSource, "DROP TABLE user");
+        JdbcUtils.close(dataSource);
+    }
+
+    public void test_curd() throws Exception {
+        {
+            List<Map<String, Object>> list = JdbcUtils.executeQuery(dataSource, "select * from user");
+            Assert.assertEquals(0, list.size());
+        }
+        {
+            Map<String, Object> data = new HashMap<String, Object>();
+            data.put("id", 123);
+            data.put("name", "高傲的羊");
+            JdbcUtils.insertToTable(dataSource, "user", data);
+        }
+        {
+            List<Map<String, Object>> list = JdbcUtils.executeQuery(dataSource, "select * from user");
+            Assert.assertEquals(1, list.size());
+            Map<String, Object> data = list.get(0);
+            
+            Assert.assertEquals(123, data.get("ID"));
+            Assert.assertEquals("高傲的羊", data.get("NAME"));
+        }
+        {
+            List<Map<String, Object>> list = JdbcUtils.executeQuery(dataSource, "select id \"id\", name \"name\" from user");
+            Assert.assertEquals(1, list.size());
+            Map<String, Object> data = list.get(0);
+            
+            Assert.assertEquals(123, data.get("id"));
+            Assert.assertEquals("高傲的羊", data.get("name"));
+        }
+        {
+            JdbcUtils.executeUpdate(dataSource, "delete from user");
+        }
+        {
+            List<Map<String, Object>> list = JdbcUtils.executeQuery(dataSource, "select * from user");
+            Assert.assertEquals(0, list.size());
+        }
+    }
+}