Fix tests

Signed-off-by: Claudio Mezzasalma <claudio.mezzasalma@eurotech.com>

rest-api/core/src/test/java/org/eclipse/kapua/app/api/core/auth/KapuaTokenAuthenticationFilterTest.java

@@ -0,0 +1,63 @@
+/*******************************************************************************
+ * Copyright (c) 2021 Eurotech and/or its affiliates and others
+ *
+ * This program and the accompanying materials are made
+ * available under the terms of the Eclipse Public License 2.0
+ * which is available at https://www.eclipse.org/legal/epl-2.0/
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ *
+ * Contributors:
+ *     Eurotech - initial API and implementation
+ *******************************************************************************/
+package org.eclipse.kapua.app.api.core.auth;
+
+import org.eclipse.kapua.qa.markers.junit.JUnitTests;
+import org.junit.Assert;
+import org.junit.Before;
+import org.junit.Test;
+import org.junit.experimental.categories.Category;
+import org.mockito.Mockito;
+
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
+
+@Category(JUnitTests.class)
+public class KapuaTokenAuthenticationFilterTest extends Assert {
+
+    HttpServletRequest request;
+    HttpServletResponse response;
+    KapuaTokenAuthenticationFilter kapuaTokenAuthenticationFilter;
+    Object[] mappedValues;
+
+    @Before
+    public void initialize() {
+        request = Mockito.mock(HttpServletRequest.class);
+        response = Mockito.mock(HttpServletResponse.class);
+        kapuaTokenAuthenticationFilter = new KapuaTokenAuthenticationFilter();
+        mappedValues = new Object[]{new Object(), 0, 10, 100000, "String", 'c', -10, -1000000000, -100000000000L, 10L, 10.0f, null, 10.10d, true, false};
+    }
+
+    @Test
+    public void isAccessAllowedTrueTest() {
+        Mockito.when(request.getMethod()).thenReturn("OPTIONS");
+        for (Object mappedValue : mappedValues) {
+            assertTrue("True expected.", kapuaTokenAuthenticationFilter.isAccessAllowed(request, response, mappedValue));
+        }
+    }
+
+    @Test
+    public void onAccessDeniedTest() throws Exception {
+        assertTrue("True expected.", kapuaTokenAuthenticationFilter.onAccessDenied(request, response));
+    }
+
+    @Test
+    public void onAccessDeniedNullRequestTest() throws Exception {
+        assertTrue("True expected.", kapuaTokenAuthenticationFilter.onAccessDenied(null, response));
+    }
+
+    @Test(expected = NullPointerException.class)
+    public void onAccessDeniedNullResponseTest() throws Exception {
+        assertTrue("True expected.", kapuaTokenAuthenticationFilter.onAccessDenied(request, null));
+    }
+}