Added sample local unit test

test/java/com/owncloud/android/utils/ErrorMessageAdapterUnitTest.java

@@ -0,0 +1,79 @@
+/**
+ *   ownCloud Android client application
+ *
+ *   @author David A. Velasco
+ *   Copyright (C) 2016 ownCloud Inc.
+ *
+ *   This program is free software: you can redistribute it and/or modify
+ *   it under the terms of the GNU General Public License version 2,
+ *   as published by the Free Software Foundation.
+ *
+ *   This program is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *   GNU General Public License for more details.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+
+package com.owncloud.android.utils;
+
+import android.content.res.Resources;
+
+import com.owncloud.android.R;
+import com.owncloud.android.lib.common.operations.RemoteOperationResult;
+import com.owncloud.android.operations.RemoveFileOperation;
+
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.mockito.Mock;
+import org.mockito.runners.MockitoJUnitRunner;
+
+import static org.hamcrest.MatcherAssert.assertThat;
+import static org.hamcrest.CoreMatchers.is;
+import static org.mockito.Mockito.when;
+
+/**
+ * Local unit test, to be run out of Android emulator or device.
+ *
+ * At the moment, it's a sample to validate the automatic test environment, in the scope of local unit tests with
+ * mock Android dependencies.
+ *
+ * Don't take it as an example of completeness.
+ *
+ * See http://developer.android.com/intl/es/training/testing/unit-testing/local-unit-tests.html .
+ */
+@RunWith(MockitoJUnitRunner.class)
+public class ErrorMessageAdapterUnitTest {
+
+    private final static String MOCK_FORBIDDEN_PERMISSIONS = "You do not have permission %s";
+    private final static String MOCK_TO_DELETE = "to delete this file";
+    private final static String PATH_TO_DELETE = "/path/to/a.file";
+    private final static String EXPECTED_ERROR_MESSAGE = "You do not have permission to delete this file";
+
+    @Mock
+    Resources mMockResources;
+
+    @Test
+    public void getErrorCauseMessageForForbiddenRemoval() {
+        // Given a mocked set of resources passed to the object under test...
+        when(mMockResources.getString(R.string.forbidden_permissions))
+            .thenReturn(MOCK_FORBIDDEN_PERMISSIONS);
+        when(mMockResources.getString(R.string.forbidden_permissions_delete))
+            .thenReturn(MOCK_TO_DELETE);
+
+        // ... when method under test is called ...
+        String errorMessage = ErrorMessageAdapter.getErrorCauseMessage(
+            new RemoteOperationResult(RemoteOperationResult.ResultCode.FORBIDDEN),
+            new RemoveFileOperation(PATH_TO_DELETE, false),
+            mMockResources
+        );
+
+        // ... then the result should be the expected one.
+        assertThat(errorMessage, is(EXPECTED_ERROR_MESSAGE));
+
+    }
+}