fixed testcase, use org.junit.Assert

src/test/java/com/alibaba/druid/bvt/pool/basic/ConnectionTest.java

@@ -20,7 +20,7 @@ import java.sql.PreparedStatement;
 import java.sql.ResultSet;
 import java.sql.Statement;
 
-import junit.framework.Assert;
+import org.junit.Assert;
 import junit.framework.TestCase;
 
 import com.alibaba.druid.mock.MockDriver;

src/test/java/com/alibaba/druid/bvt/pool/basic/ConnectionTest2.java

@@ -20,7 +20,7 @@ import java.sql.PreparedStatement;
 import java.sql.ResultSet;
 import java.sql.Statement;
 
-import junit.framework.Assert;
+import org.junit.Assert;
 import junit.framework.TestCase;
 
 import com.alibaba.druid.mock.MockDriver;

src/test/java/com/alibaba/druid/bvt/pool/basic/ConnectionTest3.java

@@ -20,7 +20,7 @@ import java.sql.ResultSet;
 import java.sql.SQLException;
 import java.util.Properties;
 
-import junit.framework.Assert;
+import org.junit.Assert;
 import junit.framework.TestCase;
 
 import com.alibaba.druid.mock.MockDriver;

src/test/java/com/alibaba/druid/bvt/pool/basic/ConnectionTest5.java

@@ -21,7 +21,7 @@ import java.util.Properties;
 import javax.sql.ConnectionEvent;
 import javax.sql.ConnectionEventListener;
 
-import junit.framework.Assert;
+import org.junit.Assert;
 import junit.framework.TestCase;
 
 import com.alibaba.druid.mock.MockDriver;

src/test/java/com/alibaba/druid/bvt/pool/basic/PoolableCallableStatementTest.java

@@ -28,7 +28,7 @@ import java.sql.Time;
 import java.sql.Timestamp;
 import java.sql.Types;
 
-import junit.framework.Assert;
+import org.junit.Assert;
 import junit.framework.TestCase;
 
 import com.alibaba.druid.mock.MockCallableStatement;

src/test/java/com/alibaba/druid/bvt/pool/basic/PoolableWrapperTest.java

@@ -15,7 +15,7 @@
  */
 package com.alibaba.druid.bvt.pool.basic;
 
-import junit.framework.Assert;
+import org.junit.Assert;
 import junit.framework.TestCase;
 
 import com.alibaba.druid.mock.MockConnection;

src/test/java/com/alibaba/druid/bvt/pool/basic/TestCommit.java

@@ -18,7 +18,7 @@ package com.alibaba.druid.bvt.pool.basic;
 import java.sql.Connection;
 import java.sql.Statement;
 
-import junit.framework.Assert;
+import org.junit.Assert;
 import junit.framework.TestCase;
 
 import com.alibaba.druid.mock.MockDriver;

src/test/java/com/alibaba/druid/bvt/pool/basic/TestDataSourceBasic.java

@@ -21,7 +21,7 @@ import java.sql.Statement;
 
 import javax.sql.DataSource;
 
-import junit.framework.Assert;
+import org.junit.Assert;
 import junit.framework.TestCase;
 
 import com.alibaba.druid.mock.MockDriver;