fixed FacesServletTestCase

impl/src/test/java/com/sun/faces/junit/JUnitFacesTestCaseBase.java

@@ -20,6 +20,12 @@
 import java.util.HashMap;
 import java.util.Map;
 
+import jakarta.enterprise.inject.spi.CDI;
+import jakarta.faces.FactoryFinder;
+import jakarta.faces.application.ApplicationFactory;
+import jakarta.faces.context.FacesContextFactory;
+import jakarta.faces.lifecycle.LifecycleFactory;
+
 import org.junit.jupiter.api.AfterEach;
 import org.junit.jupiter.api.BeforeEach;
 
@@ -34,12 +40,6 @@
 import com.sun.faces.mock.MockServletConfig;
 import com.sun.faces.mock.MockServletContext;
 
-import jakarta.enterprise.inject.spi.CDI;
-import jakarta.faces.FactoryFinder;
-import jakarta.faces.application.ApplicationFactory;
-import jakarta.faces.context.FacesContextFactory;
-import jakarta.faces.lifecycle.LifecycleFactory;
-
 public class JUnitFacesTestCaseBase {
 
     protected MockApplication application = null;
@@ -78,6 +78,8 @@ public void setUp() throws Exception {
         new MockFacesContext(new MockExternalContext(servletContext, request, response),
                 new MockLifecycle());
 
+        FactoryFinder.setFactory(FactoryFinder.FACES_SERVLET_FACTORY,
+                "com.sun.faces.mock.MockFacesServletFactory");
         FactoryFinder.setFactory(FactoryFinder.FACES_CONTEXT_FACTORY,
                 "com.sun.faces.mock.MockFacesContextFactory");
         FactoryFinder.setFactory(FactoryFinder.LIFECYCLE_FACTORY,

impl/src/test/java/com/sun/faces/mock/MockFacesServletFactory.java

@@ -0,0 +1,47 @@
+/*
+ * Copyright (c) 1997, 2020 Oracle and/or its affiliates. All rights reserved.
+ *
+ * This program and the accompanying materials are made available under the
+ * terms of the Eclipse Public License v. 2.0, which is available at
+ * http://www.eclipse.org/legal/epl-2.0.
+ *
+ * This Source Code may also be made available under the following Secondary
+ * Licenses when the conditions for such availability set forth in the
+ * Eclipse Public License v. 2.0 are satisfied: GNU General Public License,
+ * version 2 with the GNU Classpath Exception, which is available at
+ * https://www.gnu.org/software/classpath/license.html.
+ *
+ * SPDX-License-Identifier: EPL-2.0 OR GPL-2.0 WITH Classpath-exception-2.0
+ */
+
+package com.sun.faces.mock;
+
+import jakarta.faces.FactoryFinder;
+import jakarta.faces.webapp.FacesServletFactory;
+import jakarta.servlet.Servlet;
+import jakarta.servlet.ServletConfig;
+import jakarta.servlet.ServletException;
+
+import com.sun.faces.webapp.FacesServletImpl;
+
+public class MockFacesServletFactory extends FacesServletFactory {
+    public MockFacesServletFactory() {
+        System.setProperty(FactoryFinder.FACES_SERVLET_FACTORY, this.getClass().getName());
+    }
+
+    @Override
+    public Servlet getFacesServlet(ServletConfig config) {
+        Servlet facesServlet = new FacesServletImpl();
+        try {
+            facesServlet.init(config);
+        } catch (ServletException e) {
+            throw new IllegalStateException(e);
+        }
+        return facesServlet;
+    }
+
+    @Override
+    public FacesServletFactory getWrapped() {
+        return null;
+    }
+}

impl/src/test/java/jakarta/faces/webapp/FacesServletTestCase.java

@@ -18,18 +18,18 @@
 
 import static org.junit.jupiter.api.Assertions.assertEquals;
 
-import org.junit.jupiter.api.BeforeEach;
-import org.junit.jupiter.api.Test;
-
-import com.sun.faces.junit.JUnitFacesTestCaseBase;
-import com.sun.faces.mock.MockRenderKit;
-
 import jakarta.faces.FactoryFinder;
 import jakarta.faces.component.UIViewRoot;
 import jakarta.faces.render.RenderKit;
 import jakarta.faces.render.RenderKitFactory;
 import jakarta.servlet.http.HttpServletResponse;
 
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+
+import com.sun.faces.junit.JUnitFacesTestCaseBase;
+import com.sun.faces.mock.MockRenderKit;
+
 public class FacesServletTestCase extends JUnitFacesTestCaseBase {
 
     // this is private in FacesServlet to not break backwards compatibility