ConversionExecutor now checks for assignment compatible types (SWF-337).

spring-binding/src/test/java/org/springframework/binding/convert/ConversionExecutorTests.java

@@ -0,0 +1,73 @@
+/*
+ * Copyright 2004-2007 the original author or authors.
+ *
+ * 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 org.springframework.binding.convert;
+
+import java.util.Date;
+
+import junit.framework.TestCase;
+
+import org.springframework.binding.convert.support.AbstractConverter;
+
+/**
+ * Test case for {@link ConversionExecutor}.
+ */
+public class ConversionExecutorTests extends TestCase {
+	
+	private ConversionExecutor conversionExecutor;
+	
+	protected void setUp() throws Exception {
+		conversionExecutor = new ConversionExecutor(String.class, Date.class, new TestTextToDate());
+	}
+	
+	public void testTypeConversion() {
+		assertTrue(conversionExecutor.execute("10-10-2008").getClass().equals(Date.class));
+	}
+	
+	public void testAssignmentCompatibleTypeConversion() {
+		java.sql.Date date = new java.sql.Date(123L);
+		assertSame(date, conversionExecutor.execute(date));
+	}
+	
+	public void testConvertNull() {
+		assertNull(conversionExecutor.execute(null));
+	}
+	
+	public void testIllegalType() {
+		try {
+			conversionExecutor.execute(new StringBuffer());
+			fail();
+		}
+		catch (ConversionException e) {
+			// expected
+		}
+	}
+
+	private class TestTextToDate extends AbstractConverter {
+		
+		public Class[] getSourceClasses() {
+			return new Class[] { String.class };
+		}
+		
+		public Class[] getTargetClasses() {
+			return new Class[] { Date.class };
+		}
+
+		protected Object doConvert(Object source, Class targetClass, ConversionContext context) throws Exception {
+			return source == null ? null : new Date();
+		}
+	}
+
+}