Initial import

[jpf-core.git] / src / tests / java8 / DefaultMethodTest.java

diff --git a/src/tests/java8/DefaultMethodTest.java b/src/tests/java8/DefaultMethodTest.java
new file mode 100644 (file)
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+++ b/src/tests/java8/DefaultMethodTest.java
@@ -0,0 +1,146 @@
+/*
+ * Copyright (C) 2014, United States Government, as represented by the
+ * Administrator of the National Aeronautics and Space Administration.
+ * All rights reserved.
+ *
+ * The Java Pathfinder core (jpf-core) platform is 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 java8;
+
+import gov.nasa.jpf.annotation.MJI;
+import gov.nasa.jpf.util.test.TestJPF;
+import gov.nasa.jpf.vm.MJIEnv;
+import gov.nasa.jpf.vm.NativePeer;
+import gov.nasa.jpf.vm.Verify;
+import org.junit.Test;
+
+/**
+ * regression test for Java 8 default methods
+ */
+public class DefaultMethodTest extends TestJPF {
+  
+  //------------------------------------------ non-ambiguous recursive lookup
+  
+  interface A1 {
+    default int getValue(){
+      return 42;
+    }
+  } 
+  
+  interface B1 extends A1 {
+    // nothing
+  }
+  
+  static class C1 implements A1 {
+    // nothing
+  }
+  
+  static class D1 extends C1 {
+    // nothing
+  } 
+  
+  @Test
+  public void testSingleMethod (){
+    if (verifyNoPropertyViolation()){
+      D1 o = new D1();
+      int result = o.getValue();
+      System.out.println(result);
+      assertTrue (result == 42);
+    }
+  }
+  
+  //------------------------------------------ ambiguity resolution
+  
+  interface B2 {
+    default int getValue(){
+      return 3;
+    }
+  }
+  
+  static class D2 implements A1, B2 {
+    @Override
+    public int getValue(){
+      return A1.super.getValue() + B2.super.getValue();
+    }
+  }
+  
+  @Test
+  public void testExplicitDelegation (){
+    if (verifyNoPropertyViolation()){
+      D2 o = new D2();
+      int result = o.getValue();
+      System.out.println(result);
+      assertTrue (result == 45);
+    }    
+  }
+
+  //------------------------------------------- overloaded methods
+
+  interface E1 {
+    default int foo (String s1, String s2){
+      System.out.println("this is E1.foo(String,String)");
+      return 42;
+    }
+
+    default int foo (Object o1, Object o2){
+      System.out.println("this is E1.foo(Object,Object)");
+      return 0;
+    }
+  }
+
+  static class F implements E1 {
+    String getId() {
+      return "whatever";
+    }
+
+    void bar (){
+      int r = foo("blah", getId());
+      assertTrue(r == 42);
+    }
+  }
+
+  @Test
+  public void testOverloadedDefaults(){
+    if (verifyNoPropertyViolation()){
+      F o = new F();
+      o.bar();
+    }
+  }
+
+  //----------------------------------------------- native peer for interface
+
+  interface G1 {
+    default int foo (){  // should be intercepted by peer
+      System.out.println("this is bytecode G1.foo()");
+      return -1;
+    }
+  }
+
+  static class H implements G1 {
+    void bar (){
+      int r = foo();
+      //assertTrue(r == 42);
+    }
+  }
+
+  @Test
+  public void testInterfacePeer(){
+    if (verifyNoPropertyViolation()){
+      H o = new H();
+      o.bar();
+    }
+  }
+
+  // <2do> how to test IncompatibleClassChangeError without explicit classfile restore?
+}
+