[libpostgresql-jdbc-java] 50/128: Added unit test for wrapper functions

[Emmanuel Bourg]

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ebourg-guest pushed a commit to annotated tag REL9_3_1100
in repository libpostgresql-jdbc-java.

commit 816f50179f3bb65ece81f739b411fb1405a78f67
Author: Justin Santa Barbara <justin at fathomdb.com>
Date:   Mon Feb 25 07:57:24 2013 -0800

    Added unit test for wrapper functions
---
 org/postgresql/test/jdbc4/Jdbc4TestSuite.java |   1 +
 org/postgresql/test/jdbc4/WrapperTest.java    | 107 ++++++++++++++++++++++++++
 2 files changed, 108 insertions(+)

diff --git a/org/postgresql/test/jdbc4/Jdbc4TestSuite.java b/org/postgresql/test/jdbc4/Jdbc4TestSuite.java
index b54d970..0bf8b30 100644
--- a/org/postgresql/test/jdbc4/Jdbc4TestSuite.java
+++ b/org/postgresql/test/jdbc4/Jdbc4TestSuite.java
@@ -30,6 +30,7 @@ public class Jdbc4TestSuite extends TestSuite
         suite.addTestSuite(DatabaseMetaDataTest.class);
         suite.addTestSuite(ArrayTest.class);
         suite.addTestSuite(ConnectionTest.class);
+        suite.addTestSuite(WrapperTest.class);
 
         Connection connection = TestUtil.openDB();
         try
diff --git a/org/postgresql/test/jdbc4/WrapperTest.java b/org/postgresql/test/jdbc4/WrapperTest.java
new file mode 100644
index 0000000..6351319
--- /dev/null
+++ b/org/postgresql/test/jdbc4/WrapperTest.java
@@ -0,0 +1,107 @@
+/*-------------------------------------------------------------------------
+*
+* Copyright (c) 2007-2013, PostgreSQL Global Development Group
+*
+*
+*-------------------------------------------------------------------------
+*/
+package org.postgresql.test.jdbc4;
+
+import java.sql.*;
+import junit.framework.TestCase;
+
+import org.postgresql.PGConnection;
+import org.postgresql.PGStatement;
+import org.postgresql.test.TestUtil;
+
+public class WrapperTest extends TestCase {
+
+    private Connection _conn;
+    private Statement _statement;
+
+    public WrapperTest(String name) {
+        super(name);
+    }
+
+    protected void setUp() throws Exception {
+        _conn = TestUtil.openDB();
+        _statement = _conn.prepareStatement("SELECT 1");
+    }
+
+    protected void tearDown() throws SQLException {
+        _statement.close();
+        TestUtil.closeDB(_conn);
+    }
+
+    /**
+     * This interface is private, and so cannot be supported by any wrapper
+     *
+     */
+    private static interface PrivateInterface {
+    };
+
+    public void testConnectionIsWrapperForPrivate() throws SQLException {
+        assertFalse(_conn.isWrapperFor(PrivateInterface.class));
+    }
+
+    public void testConnectionIsWrapperForConnection() throws SQLException {
+        assertTrue(_conn.isWrapperFor(Connection.class));
+    }
+
+    public void testConnectionIsWrapperForPGConnection() throws SQLException {
+        assertTrue(_conn.isWrapperFor(PGConnection.class));
+    }
+
+    public void testConnectionUnwrapPrivate() throws SQLException {
+        try {
+            _conn.unwrap(PrivateInterface.class);
+            fail("unwrap of non-wrapped interface should fail");
+        } catch (SQLException e) {
+        }
+    }
+
+    public void testConnectionUnwrapConnection() throws SQLException {
+        Object v = _conn.unwrap(Connection.class);
+        assertNotNull(v);
+        assertTrue(v instanceof Connection);
+    }
+
+    public void testConnectionUnwrapPGConnection() throws SQLException {
+        Object v = _conn.unwrap(PGConnection.class);
+        assertNotNull(v);
+        assertTrue(v instanceof PGConnection);
+    }
+
+    public void testStatementIsWrapperForPrivate() throws SQLException {
+        assertFalse(_statement.isWrapperFor(PrivateInterface.class));
+    }
+
+    public void testStatementIsWrapperForStatement() throws SQLException {
+        assertTrue(_statement.isWrapperFor(Statement.class));
+    }
+
+    public void testStatementIsWrapperForPGStatement() throws SQLException {
+        assertTrue(_statement.isWrapperFor(PGStatement.class));
+    }
+
+    public void testStatementUnwrapPrivate() throws SQLException {
+        try {
+            _statement.unwrap(PrivateInterface.class);
+            fail("unwrap of non-wrapped interface should fail");
+        } catch (SQLException e) {
+        }
+    }
+
+    public void testStatementUnwrapStatement() throws SQLException {
+        Object v = _statement.unwrap(Statement.class);
+        assertNotNull(v);
+        assertTrue(v instanceof Statement);
+    }
+
+    public void testStatementUnwrapPGStatement() throws SQLException {
+        Object v = _statement.unwrap(PGStatement.class);
+        assertNotNull(v);
+        assertTrue(v instanceof PGStatement);
+    }
+
+}

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