Test Case for StorageManagementUtilTest (#4)

* Adding unit test for StorageManagementUtilTest.java

* formatting fixes

components/application-mgt/org.wso2.carbon.device.application.mgt.core/src/test/java/org.wso2.carbon.device.application.mgt.core/StorageManagementUtilTest.java

@@ -0,0 +1,75 @@
+/*
+ *  Copyright (c) 2018, WSO2 Inc. (http://www.wso2.org) All Rights Reserved.
+ *  WSO2 Inc. licenses this file to you 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 org.wso2.carbon.device.application.mgt.core;
+
+import org.junit.Assert;
+import org.testng.annotations.AfterMethod;
+import org.testng.annotations.BeforeMethod;
+import org.testng.annotations.Test;
+import org.wso2.carbon.device.application.mgt.common.exception.ResourceManagementException;
+import org.wso2.carbon.device.application.mgt.core.util.StorageManagementUtil;
+
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.IOException;
+import java.io.InputStream;
+
+public class StorageManagementUtilTest {
+    private static final String TEMP_FOLDER = "src/test/resources/util/temp";
+    private static final String APK_FILE = "src/test/resources/util/app-debug.apk";
+    private static final String APK_FILE_NAME = "/app-debug.apk";
+
+    @BeforeMethod
+    public void before() throws IOException {
+        File file = new File(TEMP_FOLDER);
+        if (file.exists()) {
+            StorageManagementUtil.deleteDir(file);
+        }
+    }
+
+    @Test
+    public void testCreateArtifactDirectory() {
+        try {
+            StorageManagementUtil.createArtifactDirectory(TEMP_FOLDER);
+        } catch (ResourceManagementException e) {
+            e.printStackTrace();
+            Assert.fail("Directory creation failed.");
+        }
+    }
+
+    @Test
+    public void testSaveFile() throws IOException, ResourceManagementException {
+        StorageManagementUtil.createArtifactDirectory(TEMP_FOLDER);
+        InputStream apk = new FileInputStream(APK_FILE);
+        StorageManagementUtil.saveFile(apk, TEMP_FOLDER + APK_FILE_NAME);
+        File file = new File(TEMP_FOLDER + APK_FILE_NAME);
+        if (!file.exists()) {
+            Assert.fail("File saving failed.");
+        }
+    }
+
+    @AfterMethod
+    public void deleteFileTest() throws IOException, ResourceManagementException {
+        File file = new File(TEMP_FOLDER);
+        StorageManagementUtil.deleteDir(file);
+        if (file.exists()) {
+            Assert.fail("File deleting failed.");
+        }
+    }
+}

components/application-mgt/org.wso2.carbon.device.application.mgt.core/src/test/resources/testng.xml

@@ -23,6 +23,7 @@
     <test name="Util classes tests" preserve-order="true">
         <classes>
             <class name="org.wso2.carbon.device.application.mgt.core.ArtifactParserTest"/>
+            <class name="org.wso2.carbon.device.application.mgt.core.StorageManagementUtilTest"/>
         </classes>
     </test>
 </suite>