Merge pull request #18201 from AndreiBranza/feature/BAEL-7841-diff-between-isa-anyobject

feature/BAEL-7841-difference-between-isa-and-anyobject

Author: davidmartinezbarua

libraries-testing-2/pom.xml

@@ -239,5 +239,4 @@
         <jgotesting.version>0.12</jgotesting.version>
         <javalite.version>1.4.13</javalite.version>
     </properties>
-
 </project>

testing-modules/easymock/pom.xml

@@ -23,7 +23,7 @@
     </dependencies>
 
     <properties>
-        <easymock.version>4.0.2</easymock.version>
+        <easymock.version>5.5.0</easymock.version>
     </properties>
 
 </project>

testing-modules/easymock/src/test/java/com/baeldung/testing/easymock/MatchersUnitTest.java

@@ -0,0 +1,74 @@
+package com.baeldung.testing.easymock;
+
+import static org.easymock.EasyMock.*;
+import static org.junit.jupiter.api.Assertions.*;
+import org.junit.jupiter.api.Test;
+
+public class MatchersUnitTest {
+
+    @Test
+    void whenUsingIsA_thenMatchesTypeAndRejectsNull() {
+        Service mock = mock(Service.class);
+        mock.process(isA(String.class));
+        expectLastCall().times(1);
+        replay(mock);
+
+        mock.process("test");
+        verify(mock);
+    }
+
+    @Test
+    void whenUsingIsAWithInheritance_thenMatchesSubclass() {
+        Service mock = mock(Service.class);
+        mock.handleRequest(isA(Request.class));
+        expectLastCall().times(2);
+        replay(mock);
+
+        mock.handleRequest(new Request("normal"));
+        mock.handleRequest(new SpecialRequest());
+        verify(mock);
+    }
+
+    @Test
+    void whenUsingIsAWithNull_thenFails() {
+        Service mock = mock(Service.class);
+        mock.process(isA(String.class));
+        expectLastCall().times(1);
+        replay(mock);
+
+        assertThrows(AssertionError.class, () -> {
+            mock.process(null);
+            verify(mock);
+        });
+    }
+
+    @Test
+    void whenUsingAnyObject_thenMatchesNullAndAnyType() {
+        Service mock = mock(Service.class);
+        mock.process(anyObject());
+        expectLastCall().times(2);
+        replay(mock);
+
+        mock.process("test");
+        mock.process(null);
+        verify(mock);
+    }
+
+    interface Service {
+        void process(String input);
+        void handleRequest(Request request);
+    }
+
+    class Request {
+        private String type;
+        Request(String type) {
+            this.type = type;
+        }
+    }
+
+    class SpecialRequest extends Request {
+        SpecialRequest() {
+            super("special");
+        }
+    }
+}