[MNT-23926] Added Seven Pass algorithm for deletion

amps/ags/rm-community/rm-community-repo/unit-test/java/org/alfresco/module/org_alfresco_module_rm/content/cleanser/ContentCleanserSevenPassUnitTest.java

@@ -0,0 +1,94 @@
+/*
+ * #%L
+ * Alfresco Records Management Module
+ * %%
+ * Copyright (C) 2005 - 2025 Alfresco Software Limited
+ * %%
+ * This file is part of the Alfresco software.
+ * -
+ * If the software was purchased under a paid Alfresco license, the terms of
+ * the paid license agreement will prevail.  Otherwise, the software is
+ * provided under the following open source license terms:
+ * -
+ * Alfresco is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ * -
+ * Alfresco 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 Lesser General Public License for more details.
+ * -
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with Alfresco. If not, see <http://www.gnu.org/licenses/>.
+ * #L%
+ */
+
+package org.alfresco.module.org_alfresco_module_rm.content.cleanser;
+
+import static org.mockito.Mockito.times;
+import static org.mockito.Mockito.verify;
+import static org.mockito.Mockito.when;
+
+import java.io.File;
+
+import org.alfresco.module.org_alfresco_module_rm.test.util.BaseUnitTest;
+import org.alfresco.service.cmr.repository.ContentIOException;
+import org.junit.Test;
+import org.mockito.InjectMocks;
+import org.mockito.Mock;
+import org.mockito.Spy;
+
+/**
+ * Eager content store cleaner unit test.
+ * 
+ */
+public class ContentCleanserSevenPassUnitTest extends BaseUnitTest {
+	@InjectMocks
+	@Spy
+	private ContentCleanserSevenPass contentCleanserSevenPass = new ContentCleanserSevenPass() {
+		/** dummy implementations */
+		protected void overwrite(File file, OverwriteOperation overwriteOperation) {
+		}
+	};
+
+	@Mock
+	private File mockedFile;
+
+	/**
+	 * Given that a file exists When I cleanse it Then the content is overwritten
+	 */
+	@Test
+	public void cleanseFile() {
+		when(mockedFile.exists()).thenReturn(true);
+		when(mockedFile.canWrite()).thenReturn(true);
+		contentCleanserSevenPass.cleanse(mockedFile);
+		verify(contentCleanserSevenPass, times(2)).overwrite(mockedFile, contentCleanserSevenPass.overwriteOnes);
+		verify(contentCleanserSevenPass, times(3)).overwrite(mockedFile, contentCleanserSevenPass.overwriteZeros);
+		verify(contentCleanserSevenPass, times(2)).overwrite(mockedFile, contentCleanserSevenPass.overwriteRandom);
+
+	}
+
+	/**
+	 * Given that the file does not exist When I cleanse it Then an exception is
+	 * thrown
+	 */
+	@Test(expected = ContentIOException.class)
+	public void fileDoesNotExist() {
+		when(mockedFile.exists()).thenReturn(false);
+		when(mockedFile.canWrite()).thenReturn(true);
+		contentCleanserSevenPass.cleanse(mockedFile);
+	}
+
+	/**
+	 * Given that I can not write to the file When I cleanse it Then an exception is
+	 * thrown
+	 */
+	@Test(expected = ContentIOException.class)
+	public void cantWriteToFile() {
+		when(mockedFile.exists()).thenReturn(true);
+		when(mockedFile.canWrite()).thenReturn(false);
+		contentCleanserSevenPass.cleanse(mockedFile);
+	}
+}