Fix policy engine JUnit that hung on ubuntu 18.04

Replaced powermock with overridable methods.

Review comments:
- license data

Issue-ID: POLICY-2444
Change-Id: I60916a720569a293e6c91e8278cda41b93c3c843
Signed-off-by: uj426b <uj426b@att.com>
Signed-off-by: Jim Hahn <jrh3@att.com>

2 files changed, 86 insertions, 45 deletions

diff --git a/POLICY-SDK-APP/src/main/java/org/onap/policy/admin/PolicyManagerServlet.java b/POLICY-SDK-APP/src/main/java/org/onap/policy/admin/PolicyManagerServlet.java
index 224ee0793..d7d6e7829 100644
--- a/POLICY-SDK-APP/src/main/java/org/onap/policy/admin/PolicyManagerServlet.java
+++ b/POLICY-SDK-APP/src/main/java/org/onap/policy/admin/PolicyManagerServlet.java
@@ -2,7 +2,7 @@
  * ============LICENSE_START=======================================================
  * ONAP Policy Engine
  * ================================================================================
- * Copyright (C) 2017-2019 AT&T Intellectual Property. All rights reserved.
+ * Copyright (C) 2017-2020 AT&T Intellectual Property. All rights reserved.
  * Modified Copyright (C) 2018 Samsung Electronics Co., Ltd.
  * Modifications Copyright (C) 2019 Bell Canada
  * ================================================================================
@@ -90,6 +90,7 @@ import org.onap.policy.utils.PolicyUtils;
 import org.onap.policy.utils.UserUtils.Pair;
 import org.onap.policy.xacml.api.XACMLErrorConstants;
 import org.onap.policy.xacml.util.XACMLPolicyScanner;
+import org.onap.portalsdk.core.domain.User;
 import org.onap.portalsdk.core.web.support.UserUtils;
 
 @WebServlet(
@@ -227,7 +228,7 @@ public class PolicyManagerServlet extends HttpServlet {
         LOGGER.debug("doPost");
         try {
             // if request contains multipart-form-data
-            if (ServletFileUpload.isMultipartContent(request)) {
+            if (isMultipartContent(request)) {
                 uploadFile(request, response);
             }
             // all other post request has json params in body
@@ -243,6 +244,10 @@ public class PolicyManagerServlet extends HttpServlet {
         }
     }
 
+    protected boolean isMultipartContent(HttpServletRequest request) {
+        return ServletFileUpload.isMultipartContent(request);
+    }
+
     // Set Error Message for Exception
     private void setError(Exception exception, HttpServletResponse response) throws IOException {
         try {
@@ -285,10 +290,10 @@ public class PolicyManagerServlet extends HttpServlet {
 
     private void processFormFile(HttpServletRequest request, FileItem item) {
         String newFile;
-        if (item.getName().endsWith(".xls") && item.getSize() <= PolicyController.getFileSizeLimit()) {
+        if (item.getName().endsWith(".xls") && item.getSize() <= getFileSizeLimit()) {
             File file = new File(item.getName());
             try (OutputStream outputStream = new FileOutputStream(file)) {
-                IOUtils.copy(item.getInputStream(), outputStream);
+                copyStream(item.getInputStream(), outputStream);
                 newFile = file.toString();
                 PolicyExportAndImportController importController = new PolicyExportAndImportController();
                 importController.importRepositoryFile(newFile, request);
@@ -302,6 +307,14 @@ public class PolicyManagerServlet extends HttpServlet {
         }
     }
 
+    protected long copyStream(InputStream inputStream, OutputStream outputStream) throws IOException {
+        return IOUtils.copy(inputStream, outputStream);
+    }
+
+    protected long getFileSizeLimit() {
+        return PolicyController.getFileSizeLimit();
+    }
+
     // File Operation Functionality
     private void fileOperation(HttpServletRequest request, HttpServletResponse response) throws ServletException {
         JSONObject responseJsonObject;
@@ -322,7 +335,7 @@ public class PolicyManagerServlet extends HttpServlet {
             JSONObject params = jsonObject.getJSONObject("params");
             Mode mode = Mode.valueOf(params.getString("mode"));
 
-            String userId = UserUtils.getUserSession(request).getOrgUserId();
+            String userId = getUserSession(request).getOrgUserId();
             LOGGER.info(
                     "********************Logging UserID while doing actions on Editor tab****************************");
             LOGGER.info(
@@ -337,6 +350,10 @@ public class PolicyManagerServlet extends HttpServlet {
         setResponse(response, responseJsonObject);
     }
 
+    protected User getUserSession(HttpServletRequest request) {
+        return UserUtils.getUserSession(request);
+    }
+
     private void setResponse(HttpServletResponse response, JSONObject responseJsonObject) {
         response.setContentType(CONTENTTYPE);
         try (PrintWriter out = response.getWriter()) {
@@ -410,9 +427,9 @@ public class PolicyManagerServlet extends HttpServlet {
 
     private boolean lookupPolicyData(HttpServletRequest request, List<Object> policyData, JSONArray policyList,
             PolicyController controller, List<JSONObject> resultList) {
-        String userId = UserUtils.getUserSession(request).getOrgUserId();
+        String userId = getUserSession(request).getOrgUserId();
         List<Object> userRoles = controller.getRoles(userId);
-        Pair<Set<String>, List<String>> pair = org.onap.policy.utils.UserUtils.checkRoleAndScope(userRoles);
+        Pair<Set<String>, List<String>> pair = checkRoleAndScope(userRoles);
         List<String> roles = pair.second;
         Set<String> scopes = pair.first;
         if (roles.contains(ADMIN) || roles.contains(EDITOR) || roles.contains(GUEST)) {
@@ -436,6 +453,10 @@ public class PolicyManagerServlet extends HttpServlet {
         return true;
     }
 
+    protected Pair<Set<String>, List<String>> checkRoleAndScope(List<Object> userRoles) {
+        return org.onap.policy.utils.UserUtils.checkRoleAndScope(userRoles);
+    }
+
     private void getPolicyDataForSuperRoles(List<Object> policyData, PolicyController controller,
             List<JSONObject> resultList, List<String> roles, Set<String> scopes) {
         if (roles.contains(SUPERADMIN) || roles.contains(SUPEREDITOR) || roles.contains(SUPERGUEST)) {
@@ -518,7 +539,7 @@ public class PolicyManagerServlet extends HttpServlet {
         String path = params.getString("path");
         String userId = null;
         try {
-            userId = UserUtils.getUserSession(request).getOrgUserId();
+            userId = getUserSession(request).getOrgUserId();
         } catch (Exception e) {
             LOGGER.error("Exception Occured while reading userid from cookie" + e);
         }
@@ -643,9 +664,9 @@ public class PolicyManagerServlet extends HttpServlet {
     private JSONObject processPolicyList(JSONObject params, HttpServletRequest request) throws ServletException {
         // Get the Login Id of the User from Request
         String testUserID = getTestUserId();
-        String userId = testUserID != null ? testUserID : UserUtils.getUserSession(request).getOrgUserId();
+        String userId = testUserID != null ? testUserID : getUserSession(request).getOrgUserId();
         List<Object> userRoles = getPolicyControllerInstance().getRoles(userId);
-        Pair<Set<String>, List<String>> pair = org.onap.policy.utils.UserUtils.checkRoleAndScope(userRoles);
+        Pair<Set<String>, List<String>> pair = checkRoleAndScope(userRoles);
         List<String> roles = pair.second;
         Set<String> scopes = pair.first;
         Map<String, String> roleByScope = org.onap.policy.utils.UserUtils.getRoleByScope(userRoles);
@@ -861,7 +882,7 @@ public class PolicyManagerServlet extends HttpServlet {
         boolean isActive = false;
         List<String> policyActiveInPdp = new ArrayList<>();
         Set<String> scopeOfPolicyActiveInPdp = new HashSet<>();
-        String userId = UserUtils.getUserSession(request).getOrgUserId();
+        String userId = getUserSession(request).getOrgUserId();
         String oldPath = params.getString("path");
         String newPath = params.getString("newPath");
         oldPath = oldPath.substring(oldPath.indexOf('/') + 1);
@@ -1194,7 +1215,7 @@ public class PolicyManagerServlet extends HttpServlet {
     // Clone the Policy
     private JSONObject copy(JSONObject params, HttpServletRequest request) throws ServletException {
         try {
-            String userId = UserUtils.getUserSession(request).getOrgUserId();
+            String userId = getUserSession(request).getOrgUserId();
             String oldPath = params.getString("path");
             String newPath = params.getString("newPath");
             oldPath = oldPath.substring(oldPath.indexOf('/') + 1);
@@ -1286,7 +1307,7 @@ public class PolicyManagerServlet extends HttpServlet {
         PolicyEntity policyEntity = null;
         String policyNamewithoutExtension;
         try {
-            String userId = UserUtils.getUserSession(request).getOrgUserId();
+            String userId = getUserSession(request).getOrgUserId();
             String deleteVersion = "";
             String path = params.getString("path");
             LOGGER.debug("delete {}" + path);
@@ -1611,7 +1632,7 @@ public class PolicyManagerServlet extends HttpServlet {
                 if (entity != null) {
                     return error("Scope Already Exists");
                 }
-                String userId = UserUtils.getUserSession(request).getOrgUserId();
+                String userId = getUserSession(request).getOrgUserId();
                 UserInfo userInfo = new UserInfo();
                 userInfo.setUserLoginId(userId);
                 PolicyEditorScopes newScope = new PolicyEditorScopes();
diff --git a/POLICY-SDK-APP/src/test/java/org/onap/policy/admin/PolicyManagerServletTest.java b/POLICY-SDK-APP/src/test/java/org/onap/policy/admin/PolicyManagerServletTest.java
index b20b1069a..50b806a37 100644
--- a/POLICY-SDK-APP/src/test/java/org/onap/policy/admin/PolicyManagerServletTest.java
+++ b/POLICY-SDK-APP/src/test/java/org/onap/policy/admin/PolicyManagerServletTest.java
@@ -32,6 +32,7 @@ import java.io.BufferedReader;
 import java.io.File;
 import java.io.IOException;
 import java.io.InputStream;
+import java.io.OutputStream;
 import java.io.PrintWriter;
 import java.io.StringReader;
 import java.util.ArrayList;
@@ -47,15 +48,12 @@ import javax.servlet.http.HttpServletRequest;
 import javax.servlet.http.HttpServletResponse;
 import javax.servlet.http.HttpSession;
 import org.apache.commons.fileupload.FileItem;
-import org.apache.commons.fileupload.servlet.ServletFileUpload;
 import org.apache.commons.io.IOUtils;
 import org.json.JSONArray;
 import org.json.JSONObject;
 import org.junit.Before;
 import org.junit.FixMethodOrder;
-import org.junit.Ignore;
 import org.junit.Test;
-import org.junit.runner.RunWith;
 import org.junit.runners.MethodSorters;
 import org.mockito.Mockito;
 import org.onap.policy.common.logging.flexlogger.FlexLogger;
@@ -74,16 +72,9 @@ import org.onap.policy.rest.jpa.UserInfo;
 import org.onap.policy.utils.UserUtils.Pair;
 import org.onap.portalsdk.core.domain.User;
 import org.onap.portalsdk.core.util.SystemProperties;
-import org.onap.portalsdk.core.web.support.UserUtils;
-import org.powermock.api.mockito.PowerMockito;
-import org.powermock.core.classloader.annotations.PowerMockIgnore;
-import org.powermock.core.classloader.annotations.PrepareForTest;
-import org.powermock.modules.junit4.PowerMockRunner;
 import org.powermock.reflect.Whitebox;
 import org.springframework.mock.web.MockHttpServletResponse;
 
-@RunWith(PowerMockRunner.class)
-@PowerMockIgnore({"com.sun.org.apache.xerces.*", "jdk.internal.reflect.*", "javax.xml.*", "org.xml.*", "org.w3c.*"})
 @FixMethodOrder(MethodSorters.NAME_ASCENDING)
 public class PolicyManagerServletTest extends Mockito {
 
@@ -831,29 +822,42 @@ public class PolicyManagerServletTest extends Mockito {
         verify(mockResponse).getWriter();
     }
 
-    @PrepareForTest(ServletFileUpload.class)
     @Test
     public void test23DoPostUploadFileException() {
-        PolicyManagerServlet servlet = new PolicyManagerServlet();
+        PolicyManagerServlet servlet = new PolicyManagerServlet() {
+            private static final long serialVersionUID = 1L;
+            @Override
+            protected boolean isMultipartContent(HttpServletRequest request) {
+                return true;
+            }
+        };
         HttpServletRequest mockRequest = Mockito.mock(HttpServletRequest.class);
         HttpServletResponse mockResponse = Mockito.mock(HttpServletResponse.class);
-        PowerMockito.mockStatic(ServletFileUpload.class);
-        when(ServletFileUpload.isMultipartContent(mockRequest)).thenReturn(true);
         servlet.doPost(mockRequest, mockResponse);
     }
 
-    @PrepareForTest({PolicyController.class, IOUtils.class})
     @Test
     public void test24ProcessFormFile() throws Exception {
-        PolicyManagerServlet servlet = new PolicyManagerServlet();
+        long fileSizeLimit = 10;
+
+        PolicyManagerServlet servlet = new PolicyManagerServlet() {
+            private static final long serialVersionUID = 1L;
+
+            @Override
+            protected long getFileSizeLimit() {
+                return fileSizeLimit;
+            }
+
+            @Override
+            protected long copyStream(InputStream inputStream, OutputStream outputStream) throws IOException {
+                // don't really copy the file
+                return 0;
+            }
+        };
         HttpServletRequest mockRequest = Mockito.mock(HttpServletRequest.class);
         FileItem mockFileItem = Mockito.mock(FileItem.class);
-        PowerMockito.mockStatic(PolicyController.class);
-        PowerMockito.mockStatic(IOUtils.class);
         InputStream mockInputStream = Mockito.mock(InputStream.class);
 
-        long fileSizeLimit = 10;
-        when(PolicyController.getFileSizeLimit()).thenReturn(fileSizeLimit);
         when(mockFileItem.getName()).thenReturn("testFileName.xls");
         when(mockFileItem.getInputStream()).thenReturn(mockInputStream);
         when(mockFileItem.getSize()).thenReturn(fileSizeLimit + 1);
@@ -888,12 +892,8 @@ public class PolicyManagerServletTest extends Mockito {
         assertNotNull(((JSONObject) res).get("result"));
     }
 
-    @PrepareForTest({UserUtils.class, org.onap.policy.utils.UserUtils.class})
     @Test
     public void test26LookupPolicyData() throws Exception {
-        PowerMockito.mockStatic(UserUtils.class);
-        PowerMockito.mockStatic(org.onap.policy.utils.UserUtils.class);
-        PolicyManagerServlet servlet = new PolicyManagerServlet();
         HttpServletRequest mockRequest = Mockito.mock(HttpServletRequest.class);
         User mockUser = Mockito.mock(User.class);
         UserInfo mockUserInfo = Mockito.mock(UserInfo.class);
@@ -923,10 +923,22 @@ public class PolicyManagerServletTest extends Mockito {
         Set<String> setOfScopes = new HashSet<String>();
         Pair<Set<String>, List<String>> pairList = new Pair<Set<String>, List<String>>(setOfScopes, listOfRoles);
 
+        PolicyManagerServlet servlet = new PolicyManagerServlet() {
+            private static final long serialVersionUID = 1L;
+
+            @Override
+            protected User getUserSession(HttpServletRequest request) {
+                return mockUser;
+            }
+
+            @Override
+            protected Pair<Set<String>, List<String>> checkRoleAndScope(List<Object> userRoles) {
+                return pairList;
+            }
+        };
+
         PolicyManagerServlet.setPolicyController(mockPolicyController);
-        PowerMockito.when(UserUtils.getUserSession(mockRequest)).thenReturn(mockUser);
         when(mockPolicyController.getRoles(any(String.class))).thenReturn(rolesList);
-        PowerMockito.when(org.onap.policy.utils.UserUtils.checkRoleAndScope(rolesList)).thenReturn(pairList);
         when(mockPolicyController.getData(any(Class.class))).thenReturn(filterDataList);
         when(mockPolicyVersion.getPolicyName()).thenReturn("sampleName");
         when(mockPolicyVersion.getModifiedDate()).thenReturn(mockDate);
@@ -1044,21 +1056,26 @@ public class PolicyManagerServletTest extends Mockito {
         verify(mockPolicyController, atLeast(1)).deleteData(mockPolicyEntity);
     }
 
-    @PrepareForTest(UserUtils.class)
     @Test
     public void test28Delete() throws Exception {
-        PolicyManagerServlet servlet = new PolicyManagerServlet();
         JSONObject mockJSONObject = Mockito.mock(JSONObject.class);
         HttpServletRequest mockRequest = Mockito.mock(HttpServletRequest.class);
         User mockUser = Mockito.mock(User.class);
         PolicyController mockPolicyController = Mockito.mock(PolicyController.class);
-        PowerMockito.mockStatic(UserUtils.class);
         List<Object> policyEntityList = new ArrayList<Object>();
         PolicyEntity mockPolicyEntity = Mockito.mock(PolicyEntity.class);
         policyEntityList.add(mockPolicyEntity);
         long policyId = 1;
 
-        PowerMockito.when(UserUtils.getUserSession(mockRequest)).thenReturn(mockUser);
+        PolicyManagerServlet servlet = new PolicyManagerServlet() {
+            private static final long serialVersionUID = 1L;
+
+            @Override
+            protected User getUserSession(HttpServletRequest request) {
+                return mockUser;
+            }
+        };
+
         PolicyManagerServlet.setPolicyController(mockPolicyController);
         when(mockUser.getOrgUserId()).thenReturn("sampleUserId");
         when(mockJSONObject.getString("path")).thenReturn("/sampleScope:samplePolicyName.1.xml");
@@ -1094,12 +1111,12 @@ public class PolicyManagerServletTest extends Mockito {
         verify(mockJSONObject, atLeast(1)).has("deleteVersion");
     }
 
-    @Ignore
     @Test
     public void test29ParsePolicyList() throws Exception {
         PolicyManagerServlet servlet = new PolicyManagerServlet();
         List<JSONObject> resultList = new ArrayList<JSONObject>();
         PolicyController mockPolicyController = Mockito.mock(PolicyController.class);
+        UserInfo mockUserInfo = Mockito.mock(UserInfo.class);
         String policyName = "sampleName\\";
         String policyVersion = "sampleVersion";
         List<Object> activeDataList = new ArrayList<Object>();
@@ -1117,6 +1134,9 @@ public class PolicyManagerServletTest extends Mockito {
         //
         // This intermittently throws an NPE, even when fixing the method order
         //
+        when(mockPolicyController.getEntityItem(UserInfo.class, "userLoginId", "sampleUserName"))
+            .thenReturn(mockUserInfo);
+        when(mockUserInfo.getUserName()).thenReturn("testUserName");
         Whitebox.invokeMethod(servlet, "parsePolicyList", resultList, mockPolicyController, policyName, policyVersion);
         verify(mockPolicyController, atLeast(1)).getDataByQuery(any(String.class), any(SimpleBindings.class));
         verify(mockPolicyVersion, atLeast(1)).getPolicyName();