more utility tests

1 files changed, 30 insertions, 0 deletions

diff --git a/jpa/tests/org.eclipse.jpt.utility.tests/src/org/eclipse/jpt/utility/tests/internal/FilterTests.java b/jpa/tests/org.eclipse.jpt.utility.tests/src/org/eclipse/jpt/utility/tests/internal/FilterTests.java
index 35865aeb40..7a43ad6d00 100644
--- a/jpa/tests/org.eclipse.jpt.utility.tests/src/org/eclipse/jpt/utility/tests/internal/FilterTests.java
+++ b/jpa/tests/org.eclipse.jpt.utility.tests/src/org/eclipse/jpt/utility/tests/internal/FilterTests.java
@@ -27,6 +27,16 @@ public class FilterTests extends TestCase {
 		assertTrue(filter.accept("bar"));
 	}
 
+	public void testNullFilter_toString() {
+		Filter<String> filter = Filter.Null.instance();
+		assertNotNull(filter.toString());
+	}
+
+	public void testNullFilter_serialization() throws Exception {
+		Filter<String> filter = Filter.Null.instance();
+		assertSame(filter, TestTools.serialize(filter));
+	}
+
 	public void testOpaqueFilter() {
 		Filter<String> filter = Filter.Opaque.instance();
 		assertFalse(filter.accept(""));
@@ -34,6 +44,16 @@ public class FilterTests extends TestCase {
 		assertFalse(filter.accept("bar"));
 	}
 
+	public void testOpaqueFilter_toString() {
+		Filter<String> filter = Filter.Opaque.instance();
+		assertNotNull(filter.toString());
+	}
+
+	public void testOpaqueFilter_serialization() throws Exception {
+		Filter<String> filter = Filter.Opaque.instance();
+		assertSame(filter, TestTools.serialize(filter));
+	}
+
 	public void testDisabledFilter() {
 		Filter<String> filter = Filter.Disabled.instance();
 		boolean exCaught = false;
@@ -46,4 +66,14 @@ public class FilterTests extends TestCase {
 		assertTrue(exCaught);
 	}
 
+	public void testDisabledFilter_toString() {
+		Filter<String> filter = Filter.Disabled.instance();
+		assertNotNull(filter.toString());
+	}
+
+	public void testDisabledFilter_serialization() throws Exception {
+		Filter<String> filter = Filter.Disabled.instance();
+		assertSame(filter, TestTools.serialize(filter));
+	}
+
 }