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Posted to issues@nifi.apache.org by GitBox <gi...@apache.org> on 2020/05/18 21:23:58 UTC

[GitHub] [nifi] turcsanyip commented on a change in pull request #4272: NIFI-7336: Add tests for DeleteAzureDataLakeStorage

turcsanyip commented on a change in pull request #4272:
URL: https://github.com/apache/nifi/pull/4272#discussion_r426894009



##########
File path: nifi-nar-bundles/nifi-azure-bundle/nifi-azure-processors/src/test/java/org/apache/nifi/processors/azure/storage/ITDeleteAzureDataLakeStorage.java
##########
@@ -16,44 +16,388 @@
  */
 package org.apache.nifi.processors.azure.storage;
 
+import com.azure.storage.file.datalake.DataLakeDirectoryClient;
+import com.azure.storage.file.datalake.DataLakeFileClient;
+import com.azure.storage.file.datalake.models.DataLakeStorageException;
 import org.apache.nifi.processor.Processor;
+import org.apache.nifi.processor.exception.ProcessException;
+import org.apache.nifi.provenance.ProvenanceEventType;
 import org.apache.nifi.util.MockFlowFile;
-import org.junit.Before;
-import org.junit.Ignore;
 import org.junit.Test;
 
-import java.util.List;
+import java.util.Collections;
+import java.util.HashMap;
+import java.util.Map;
 
-public class ITDeleteAzureDataLakeStorage extends AbstractAzureBlobStorageIT {
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertFalse;
+import static org.junit.Assert.assertTrue;
+
+public class ITDeleteAzureDataLakeStorage extends AbstractAzureDataLakeStorageIT {
 
     @Override
     protected Class<? extends Processor> getProcessorClass() {
         return DeleteAzureDataLakeStorage.class;
     }
 
-    @Before
-    public void setUp() {
-        runner.setProperty(DeleteAzureDataLakeStorage.FILE, TEST_FILE_NAME);
+    @Test
+    public void testDeleteFileFromRoot() {
+        // GIVEN
+        String directory= "";
+        String filename = "testFile.txt";
+        String fileContent = "AzureFileContent";
+        String inputFlowFileContent = "InputFlowFileContent";
+
+        uploadFile(directory, filename, fileContent);
+
+        // WHEN
+        // THEN
+        testSuccessfulDelete(fileSystemName, directory, filename, inputFlowFileContent, inputFlowFileContent);
+    }
+
+    @Test
+    public void testDeleteFileFromDirectory() {
+        // GIVEN
+        String directory = "TestDirectory";
+        String filename = "testFile.txt";
+        String fileContent = "AzureFileContent";
+        String inputFlowFileContent = "InputFlowFileContent";
+
+        createDirectoryAndUploadFile(directory, filename, fileContent);
+
+        // WHEN
+        // THEN
+        testSuccessfulDelete(fileSystemName, directory, filename, inputFlowFileContent, inputFlowFileContent);
+    }
+
+    @Test
+    public void testDeleteFileFromDeepDirectory() {
+        // GIVEN
+        String directory= "Directory01/Directory02/Directory03/Directory04/Directory05/Directory06/Directory07/"
+                + "Directory08/Directory09/Directory10/Directory11/Directory12/Directory13/Directory14/Directory15/"
+                + "Directory16/Directory17/Directory18/Directory19/Directory20/TestDirectory";
+        String filename = "testFile.txt";
+        String fileContent = "AzureFileContent";
+        String inputFlowFileContent = "InputFlowFileContent";
+
+        createDirectoryAndUploadFile(directory, filename, fileContent);
+
+        // WHEN
+        // THEN
+        testSuccessfulDelete(fileSystemName, directory, filename, inputFlowFileContent, inputFlowFileContent);
+    }
+
+    @Test
+    public void testDeleteFileWithWhitespaceInFilename() {
+        // GIVEN
+        String directory= "TestDirectory";
+        String filename = "A test file.txt";
+        String fileContent = "AzureFileContent";
+        String inputFlowFileContent = "InputFlowFileContent";
+
+        createDirectoryAndUploadFile(directory, filename, fileContent);
+
+        // WHEN
+        // THEN
+        testSuccessfulDelete(fileSystemName, directory, filename, inputFlowFileContent, inputFlowFileContent);
+    }
+
+    @Test
+    public void testDeleteFileWithWhitespaceInDirectoryName() {
+        // GIVEN
+        String directory= "A Test Directory";
+        String filename = "testFile.txt";
+        String fileContent = "AzureFileContent";
+        String inputFlowFileContent = "InputFlowFileContent";
+
+        createDirectoryAndUploadFile(directory, filename, fileContent);
+
+        // WHEN
+        // THEN
+        testSuccessfulDelete(fileSystemName, directory, filename, inputFlowFileContent, inputFlowFileContent);
+    }
+
+    @Test
+    public void testDeleteEmptyDirectory() {
+        // GIVEN
+        String parentDirectory = "ParentDirectory";
+        String childDirectory = "ChildDirectory";
+        String inputFlowFileContent = "InputFlowFileContent";
+
+        fileSystemClient.createDirectory(parentDirectory + "/" + childDirectory);
+
+        // WHEN
+        // THEN
+        testSuccessfulDelete(fileSystemName, parentDirectory, childDirectory, inputFlowFileContent, inputFlowFileContent);
+    }
+
+    @Test
+    public void testDeleteFileCaseSensitiveFilename() {
+        // GIVEN
+        String directory = "TestDirectory";
+        String filename1 = "testFile.txt";
+        String filename2 = "testfile.txt";
+        String fileContent1 = "ContentOfFile1";
+        String fileContent2 = "ContentOfFile2";
+        String inputFlowFileContent = "InputFlowFileContent";
+
+        createDirectoryAndUploadFile(directory, filename1, fileContent1);
+        createDirectoryAndUploadFile(directory, filename2, fileContent2);
+
+        // WHEN
+        // THEN
+        testSuccessfulDelete(fileSystemName, directory, filename1, inputFlowFileContent, inputFlowFileContent);
+        assertTrue(fileExists(directory, filename2));
+    }
+
+    @Test
+    public void testDeleteUsingExpressionLanguage() {
+        // GIVEN
+        String expLangFileSystem = "az.filesystem";
+        String expLangDirectory = "az.directory";
+        String expLangFilename = "az.filename";
+
+        String directory = "TestDirectory";
+        String filename = "testFile.txt";
+        String fileContent = "AzureFileContent";
+
+        String inputFlowFileContent = "InputFlowFileContent";
+
+        Map<String, String> attributes = new HashMap<>();
+        attributes.put(expLangFileSystem, fileSystemName);
+        attributes.put(expLangDirectory, directory);
+        attributes.put(expLangFilename, filename);
+
+        createDirectoryAndUploadFile(directory, filename, fileContent);
+
+        // WHEN
+        // THEN
+        testSuccessfulDeleteWithExpressionLanguage("${" + expLangFileSystem + "}",
+                "${" + expLangDirectory + "}",
+                "${" + expLangFilename + "}",
+                attributes,
+                inputFlowFileContent,
+                inputFlowFileContent,
+                directory,
+                filename);
+    }
+
+    @Test
+    public void testFetchUsingExpressionLanguageFileSystemIsNotSpecified() {

Review comment:
       Typo: testDelete (also the next method)

##########
File path: nifi-nar-bundles/nifi-azure-bundle/nifi-azure-processors/src/test/java/org/apache/nifi/processors/azure/storage/ITDeleteAzureDataLakeStorage.java
##########
@@ -16,44 +16,388 @@
  */
 package org.apache.nifi.processors.azure.storage;
 
+import com.azure.storage.file.datalake.DataLakeDirectoryClient;
+import com.azure.storage.file.datalake.DataLakeFileClient;
+import com.azure.storage.file.datalake.models.DataLakeStorageException;
 import org.apache.nifi.processor.Processor;
+import org.apache.nifi.processor.exception.ProcessException;
+import org.apache.nifi.provenance.ProvenanceEventType;
 import org.apache.nifi.util.MockFlowFile;
-import org.junit.Before;
-import org.junit.Ignore;
 import org.junit.Test;
 
-import java.util.List;
+import java.util.Collections;
+import java.util.HashMap;
+import java.util.Map;
 
-public class ITDeleteAzureDataLakeStorage extends AbstractAzureBlobStorageIT {
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertFalse;
+import static org.junit.Assert.assertTrue;
+
+public class ITDeleteAzureDataLakeStorage extends AbstractAzureDataLakeStorageIT {
 
     @Override
     protected Class<? extends Processor> getProcessorClass() {
         return DeleteAzureDataLakeStorage.class;
     }
 
-    @Before
-    public void setUp() {
-        runner.setProperty(DeleteAzureDataLakeStorage.FILE, TEST_FILE_NAME);
+    @Test
+    public void testDeleteFileFromRoot() {
+        // GIVEN
+        String directory= "";
+        String filename = "testFile.txt";
+        String fileContent = "AzureFileContent";
+        String inputFlowFileContent = "InputFlowFileContent";
+
+        uploadFile(directory, filename, fileContent);
+
+        // WHEN
+        // THEN
+        testSuccessfulDelete(fileSystemName, directory, filename, inputFlowFileContent, inputFlowFileContent);
+    }
+
+    @Test
+    public void testDeleteFileFromDirectory() {
+        // GIVEN
+        String directory = "TestDirectory";
+        String filename = "testFile.txt";
+        String fileContent = "AzureFileContent";
+        String inputFlowFileContent = "InputFlowFileContent";
+
+        createDirectoryAndUploadFile(directory, filename, fileContent);
+
+        // WHEN
+        // THEN
+        testSuccessfulDelete(fileSystemName, directory, filename, inputFlowFileContent, inputFlowFileContent);
+    }
+
+    @Test
+    public void testDeleteFileFromDeepDirectory() {
+        // GIVEN
+        String directory= "Directory01/Directory02/Directory03/Directory04/Directory05/Directory06/Directory07/"
+                + "Directory08/Directory09/Directory10/Directory11/Directory12/Directory13/Directory14/Directory15/"
+                + "Directory16/Directory17/Directory18/Directory19/Directory20/TestDirectory";
+        String filename = "testFile.txt";
+        String fileContent = "AzureFileContent";
+        String inputFlowFileContent = "InputFlowFileContent";
+
+        createDirectoryAndUploadFile(directory, filename, fileContent);
+
+        // WHEN
+        // THEN
+        testSuccessfulDelete(fileSystemName, directory, filename, inputFlowFileContent, inputFlowFileContent);
+    }
+
+    @Test
+    public void testDeleteFileWithWhitespaceInFilename() {
+        // GIVEN
+        String directory= "TestDirectory";
+        String filename = "A test file.txt";
+        String fileContent = "AzureFileContent";
+        String inputFlowFileContent = "InputFlowFileContent";
+
+        createDirectoryAndUploadFile(directory, filename, fileContent);
+
+        // WHEN
+        // THEN
+        testSuccessfulDelete(fileSystemName, directory, filename, inputFlowFileContent, inputFlowFileContent);
+    }
+
+    @Test
+    public void testDeleteFileWithWhitespaceInDirectoryName() {
+        // GIVEN
+        String directory= "A Test Directory";
+        String filename = "testFile.txt";
+        String fileContent = "AzureFileContent";
+        String inputFlowFileContent = "InputFlowFileContent";
+
+        createDirectoryAndUploadFile(directory, filename, fileContent);
+
+        // WHEN
+        // THEN
+        testSuccessfulDelete(fileSystemName, directory, filename, inputFlowFileContent, inputFlowFileContent);
+    }
+
+    @Test
+    public void testDeleteEmptyDirectory() {
+        // GIVEN
+        String parentDirectory = "ParentDirectory";
+        String childDirectory = "ChildDirectory";
+        String inputFlowFileContent = "InputFlowFileContent";
+
+        fileSystemClient.createDirectory(parentDirectory + "/" + childDirectory);
+
+        // WHEN
+        // THEN
+        testSuccessfulDelete(fileSystemName, parentDirectory, childDirectory, inputFlowFileContent, inputFlowFileContent);
+    }
+
+    @Test
+    public void testDeleteFileCaseSensitiveFilename() {
+        // GIVEN
+        String directory = "TestDirectory";
+        String filename1 = "testFile.txt";
+        String filename2 = "testfile.txt";
+        String fileContent1 = "ContentOfFile1";
+        String fileContent2 = "ContentOfFile2";
+        String inputFlowFileContent = "InputFlowFileContent";
+
+        createDirectoryAndUploadFile(directory, filename1, fileContent1);
+        createDirectoryAndUploadFile(directory, filename2, fileContent2);
+
+        // WHEN
+        // THEN
+        testSuccessfulDelete(fileSystemName, directory, filename1, inputFlowFileContent, inputFlowFileContent);
+        assertTrue(fileExists(directory, filename2));
+    }
+
+    @Test
+    public void testDeleteUsingExpressionLanguage() {
+        // GIVEN
+        String expLangFileSystem = "az.filesystem";
+        String expLangDirectory = "az.directory";
+        String expLangFilename = "az.filename";
+
+        String directory = "TestDirectory";
+        String filename = "testFile.txt";
+        String fileContent = "AzureFileContent";
+
+        String inputFlowFileContent = "InputFlowFileContent";
+
+        Map<String, String> attributes = new HashMap<>();
+        attributes.put(expLangFileSystem, fileSystemName);
+        attributes.put(expLangDirectory, directory);
+        attributes.put(expLangFilename, filename);
+
+        createDirectoryAndUploadFile(directory, filename, fileContent);
+
+        // WHEN
+        // THEN
+        testSuccessfulDeleteWithExpressionLanguage("${" + expLangFileSystem + "}",
+                "${" + expLangDirectory + "}",
+                "${" + expLangFilename + "}",
+                attributes,
+                inputFlowFileContent,
+                inputFlowFileContent,
+                directory,
+                filename);
+    }
+
+    @Test
+    public void testFetchUsingExpressionLanguageFileSystemIsNotSpecified() {
+        // GIVEN
+        String expLangFileSystem = "az.filesystem";
+        String expLangDirectory = "az.directory";
+        String expLangFilename = "az.filename";
+
+        String directory = "TestDirectory";
+        String filename = "testFile.txt";
+        String fileContent = "AzureFileContent";
+
+        String inputFlowFileContent = "InputFlowFileContent";
+
+        Map<String, String> attributes = new HashMap<>();
+        attributes.put(expLangDirectory, directory);
+        attributes.put(expLangFilename, filename);
+
+        createDirectoryAndUploadFile(directory, filename, fileContent);
+
+        // WHEN
+        // THEN
+        testFailedDeleteWithProcessException("${" + expLangFileSystem + "}",
+                "${" + expLangDirectory + "}",
+                "${" + expLangFilename + "}",
+                attributes,
+                inputFlowFileContent,
+                inputFlowFileContent);
+        assertTrue(fileExists(directory, filename));
+    }
+
+    @Test
+    public void testFetchUsingExpressionLanguageFilenameIsNotSpecified() {
+        // GIVEN
+        String expLangFileSystem = "az.filesystem";
+        String expLangDirectory = "az.directory";
+        String expLangFilename = "az.filename";
+
+        String directory = "TestDirectory";
+        String filename = "testFile.txt";
+        String fileContent = "AzureFileContent";
+
+        String inputFlowFileContent = "InputFlowFileContent";
+        Map<String, String> attributes = new HashMap<>();
+        attributes.put(expLangFileSystem, fileSystemName);
+        attributes.put(expLangDirectory, directory);
+
+        createDirectoryAndUploadFile(directory, filename, fileContent);
+
+        // WHEN
+        // THEN
+        testFailedDeleteWithProcessException("${" + expLangFileSystem + "}",
+                "${" + expLangDirectory + "}",
+                "${" + expLangFilename + "}",
+                attributes,
+                inputFlowFileContent,
+                inputFlowFileContent);
+        assertTrue(fileExists(directory, filename));
+    }
+
+    @Test
+    public void testDeleteNonExistentFile() {
+        // GIVEN
+        String directory = "TestDirectory";
+        String filename = "testFile.txt";
+        String inputFlowFileContent = "InputFlowFileContent";
+
+        fileSystemClient.createDirectory(directory);
+
+        // WHEN
+        // THEN
+        testFailedDelete(fileSystemName, directory, filename, inputFlowFileContent, inputFlowFileContent, 404);
+        assertTrue(fileExists("", directory));
+    }
+
+    @Test
+    public void testDeleteFileFromNonExistentDirectory() {
+        // GIVEN
+        String directory = "TestDirectory";
+        String filename = "testFile.txt";
+        String inputFlowFileContent = "InputFlowFileContent";
+
+        // WHEN
+        // THEN
+        testFailedDelete(fileSystemName, directory, filename, inputFlowFileContent, inputFlowFileContent, 404);
     }
 
-    @Ignore
     @Test
-    public void testDeleteFile() throws Exception {
+    public void testDeleteFileFromNonExistentFileSystem() {
+        // GIVEN
+        String fileSystem = "NonExistentFileSystem";
+        String directory = "TestDirectory";
+        String filename = "testFile.txt";
+        String inputFlowFileContent = "InputFlowFileContent";
+
+        // WHEN
+        // THEN
+        testFailedDelete(fileSystem, directory, filename, inputFlowFileContent, inputFlowFileContent, 400);
+    }
+
+    @Test
+    public void testDeleteNonemptyDirectory() {
+        // GIVEN
+        String directory = "TestDirectory";
+        String filename = "testFile.txt";
+        String fileContent = "AzureFileContent";
+        String inputFlowFileContent = "InputFlowFileContent";
+
+        createDirectoryAndUploadFile(directory, filename, fileContent);
+
+        testFailedDelete(fileSystemName, "", directory, inputFlowFileContent, inputFlowFileContent, 409);
+        assertTrue(fileExists(directory, filename));
+    }
+
+    @Test
+    public void testDeleteFileWithInvalidFilename() {
+        // GIVEN
+        String directory = "TestDirectory";
+        String filename = "testFile.txt";
+        String invalidFilename = "test/\\File.txt";
+        String fileContent = "AzureFileContent";
+        String inputFlowFileContent = "InputFlowFileContent";
+
+        createDirectoryAndUploadFile(directory, filename, fileContent);
+
+        // WHEN
+        // THEN
+        testFailedDelete(fileSystemName, directory, invalidFilename, inputFlowFileContent, inputFlowFileContent, 400);
+        assertTrue(fileExists(directory, filename));
+    }
+
+    private void testSuccessfulDelete(String fileSystem, String directory, String filename, String inputFlowFileContent, String expectedFlowFileContent) {
+        testSuccessfulDeleteWithExpressionLanguage(fileSystem, directory, filename, Collections.emptyMap(), inputFlowFileContent, expectedFlowFileContent,
+                                                   directory, filename);
+    }
+
+    private void testSuccessfulDeleteWithExpressionLanguage(String expLangFileSystem, String expLangDirectory, String expLangFilename, Map<String, String> attributes,
+                                                            String inputFlowFileContent, String expectedFlowFileContent, String directory, String filename) {
+        // GIVEN
+        int expectedNumberOfProvenanceEvents = 1;
+        ProvenanceEventType expectedEventType = ProvenanceEventType.REMOTE_INVOCATION;
+
+        setRunnerProperties(expLangFileSystem, expLangDirectory, expLangFilename);
+
+        // WHEN
+        startRunner(inputFlowFileContent, attributes);
+
+        // THEN
+        assertSuccess(directory, filename, expectedFlowFileContent, expectedNumberOfProvenanceEvents, expectedEventType);
+    }
+
+    private void testFailedDelete(String fileSystem, String directory, String filename, String inputFlowFileContent, String expectedFlowFileContent, int expectedErrorCode) {
+        // GIVEN
+        setRunnerProperties(fileSystem, directory, filename);
+
+        // WHEN
+        startRunner(inputFlowFileContent, Collections.emptyMap());
+
+        // THEN
+        DataLakeStorageException e = (DataLakeStorageException)runner.getLogger().getErrorMessages().get(0).getThrowable();
+        assertEquals(expectedErrorCode, e.getStatusCode());
+
+        assertFailure(expectedFlowFileContent);
+    }
+
+    private void testFailedDeleteWithProcessException(String fileSystem, String directory, String filename, Map<String, String> attributes,
+    String inputFlowFileContent, String expectedFlowFileContent) {

Review comment:
       Wrong indentation.

##########
File path: nifi-nar-bundles/nifi-azure-bundle/nifi-azure-processors/src/test/java/org/apache/nifi/processors/azure/storage/ITDeleteAzureDataLakeStorage.java
##########
@@ -16,44 +16,388 @@
  */
 package org.apache.nifi.processors.azure.storage;
 
+import com.azure.storage.file.datalake.DataLakeDirectoryClient;
+import com.azure.storage.file.datalake.DataLakeFileClient;
+import com.azure.storage.file.datalake.models.DataLakeStorageException;
 import org.apache.nifi.processor.Processor;
+import org.apache.nifi.processor.exception.ProcessException;
+import org.apache.nifi.provenance.ProvenanceEventType;
 import org.apache.nifi.util.MockFlowFile;
-import org.junit.Before;
-import org.junit.Ignore;
 import org.junit.Test;
 
-import java.util.List;
+import java.util.Collections;
+import java.util.HashMap;
+import java.util.Map;
 
-public class ITDeleteAzureDataLakeStorage extends AbstractAzureBlobStorageIT {
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertFalse;
+import static org.junit.Assert.assertTrue;
+
+public class ITDeleteAzureDataLakeStorage extends AbstractAzureDataLakeStorageIT {
 
     @Override
     protected Class<? extends Processor> getProcessorClass() {
         return DeleteAzureDataLakeStorage.class;
     }
 
-    @Before
-    public void setUp() {
-        runner.setProperty(DeleteAzureDataLakeStorage.FILE, TEST_FILE_NAME);
+    @Test
+    public void testDeleteFileFromRoot() {
+        // GIVEN
+        String directory= "";
+        String filename = "testFile.txt";
+        String fileContent = "AzureFileContent";
+        String inputFlowFileContent = "InputFlowFileContent";
+
+        uploadFile(directory, filename, fileContent);
+
+        // WHEN
+        // THEN
+        testSuccessfulDelete(fileSystemName, directory, filename, inputFlowFileContent, inputFlowFileContent);
+    }
+
+    @Test
+    public void testDeleteFileFromDirectory() {
+        // GIVEN
+        String directory = "TestDirectory";
+        String filename = "testFile.txt";
+        String fileContent = "AzureFileContent";
+        String inputFlowFileContent = "InputFlowFileContent";
+
+        createDirectoryAndUploadFile(directory, filename, fileContent);
+
+        // WHEN
+        // THEN
+        testSuccessfulDelete(fileSystemName, directory, filename, inputFlowFileContent, inputFlowFileContent);
+    }
+
+    @Test
+    public void testDeleteFileFromDeepDirectory() {
+        // GIVEN
+        String directory= "Directory01/Directory02/Directory03/Directory04/Directory05/Directory06/Directory07/"
+                + "Directory08/Directory09/Directory10/Directory11/Directory12/Directory13/Directory14/Directory15/"
+                + "Directory16/Directory17/Directory18/Directory19/Directory20/TestDirectory";
+        String filename = "testFile.txt";
+        String fileContent = "AzureFileContent";
+        String inputFlowFileContent = "InputFlowFileContent";
+
+        createDirectoryAndUploadFile(directory, filename, fileContent);
+
+        // WHEN
+        // THEN
+        testSuccessfulDelete(fileSystemName, directory, filename, inputFlowFileContent, inputFlowFileContent);
+    }
+
+    @Test
+    public void testDeleteFileWithWhitespaceInFilename() {
+        // GIVEN
+        String directory= "TestDirectory";
+        String filename = "A test file.txt";
+        String fileContent = "AzureFileContent";
+        String inputFlowFileContent = "InputFlowFileContent";
+
+        createDirectoryAndUploadFile(directory, filename, fileContent);
+
+        // WHEN
+        // THEN
+        testSuccessfulDelete(fileSystemName, directory, filename, inputFlowFileContent, inputFlowFileContent);
+    }
+
+    @Test
+    public void testDeleteFileWithWhitespaceInDirectoryName() {
+        // GIVEN
+        String directory= "A Test Directory";
+        String filename = "testFile.txt";
+        String fileContent = "AzureFileContent";
+        String inputFlowFileContent = "InputFlowFileContent";
+
+        createDirectoryAndUploadFile(directory, filename, fileContent);
+
+        // WHEN
+        // THEN
+        testSuccessfulDelete(fileSystemName, directory, filename, inputFlowFileContent, inputFlowFileContent);
+    }
+
+    @Test
+    public void testDeleteEmptyDirectory() {
+        // GIVEN
+        String parentDirectory = "ParentDirectory";
+        String childDirectory = "ChildDirectory";
+        String inputFlowFileContent = "InputFlowFileContent";
+
+        fileSystemClient.createDirectory(parentDirectory + "/" + childDirectory);
+
+        // WHEN
+        // THEN
+        testSuccessfulDelete(fileSystemName, parentDirectory, childDirectory, inputFlowFileContent, inputFlowFileContent);
+    }
+
+    @Test
+    public void testDeleteFileCaseSensitiveFilename() {
+        // GIVEN
+        String directory = "TestDirectory";
+        String filename1 = "testFile.txt";
+        String filename2 = "testfile.txt";
+        String fileContent1 = "ContentOfFile1";
+        String fileContent2 = "ContentOfFile2";
+        String inputFlowFileContent = "InputFlowFileContent";
+
+        createDirectoryAndUploadFile(directory, filename1, fileContent1);
+        createDirectoryAndUploadFile(directory, filename2, fileContent2);
+
+        // WHEN
+        // THEN
+        testSuccessfulDelete(fileSystemName, directory, filename1, inputFlowFileContent, inputFlowFileContent);
+        assertTrue(fileExists(directory, filename2));
+    }
+
+    @Test
+    public void testDeleteUsingExpressionLanguage() {
+        // GIVEN
+        String expLangFileSystem = "az.filesystem";
+        String expLangDirectory = "az.directory";
+        String expLangFilename = "az.filename";
+
+        String directory = "TestDirectory";
+        String filename = "testFile.txt";
+        String fileContent = "AzureFileContent";
+
+        String inputFlowFileContent = "InputFlowFileContent";
+
+        Map<String, String> attributes = new HashMap<>();
+        attributes.put(expLangFileSystem, fileSystemName);
+        attributes.put(expLangDirectory, directory);
+        attributes.put(expLangFilename, filename);
+
+        createDirectoryAndUploadFile(directory, filename, fileContent);
+
+        // WHEN
+        // THEN
+        testSuccessfulDeleteWithExpressionLanguage("${" + expLangFileSystem + "}",
+                "${" + expLangDirectory + "}",
+                "${" + expLangFilename + "}",
+                attributes,
+                inputFlowFileContent,
+                inputFlowFileContent,
+                directory,
+                filename);
+    }
+
+    @Test
+    public void testFetchUsingExpressionLanguageFileSystemIsNotSpecified() {
+        // GIVEN
+        String expLangFileSystem = "az.filesystem";
+        String expLangDirectory = "az.directory";
+        String expLangFilename = "az.filename";
+
+        String directory = "TestDirectory";
+        String filename = "testFile.txt";
+        String fileContent = "AzureFileContent";
+
+        String inputFlowFileContent = "InputFlowFileContent";
+
+        Map<String, String> attributes = new HashMap<>();
+        attributes.put(expLangDirectory, directory);
+        attributes.put(expLangFilename, filename);
+
+        createDirectoryAndUploadFile(directory, filename, fileContent);
+
+        // WHEN
+        // THEN
+        testFailedDeleteWithProcessException("${" + expLangFileSystem + "}",
+                "${" + expLangDirectory + "}",
+                "${" + expLangFilename + "}",
+                attributes,
+                inputFlowFileContent,
+                inputFlowFileContent);
+        assertTrue(fileExists(directory, filename));
+    }
+
+    @Test
+    public void testFetchUsingExpressionLanguageFilenameIsNotSpecified() {
+        // GIVEN
+        String expLangFileSystem = "az.filesystem";
+        String expLangDirectory = "az.directory";
+        String expLangFilename = "az.filename";
+
+        String directory = "TestDirectory";
+        String filename = "testFile.txt";
+        String fileContent = "AzureFileContent";
+
+        String inputFlowFileContent = "InputFlowFileContent";
+        Map<String, String> attributes = new HashMap<>();
+        attributes.put(expLangFileSystem, fileSystemName);
+        attributes.put(expLangDirectory, directory);
+
+        createDirectoryAndUploadFile(directory, filename, fileContent);
+
+        // WHEN
+        // THEN
+        testFailedDeleteWithProcessException("${" + expLangFileSystem + "}",
+                "${" + expLangDirectory + "}",
+                "${" + expLangFilename + "}",
+                attributes,
+                inputFlowFileContent,
+                inputFlowFileContent);
+        assertTrue(fileExists(directory, filename));
+    }
+
+    @Test
+    public void testDeleteNonExistentFile() {
+        // GIVEN
+        String directory = "TestDirectory";
+        String filename = "testFile.txt";
+        String inputFlowFileContent = "InputFlowFileContent";
+
+        fileSystemClient.createDirectory(directory);
+
+        // WHEN
+        // THEN
+        testFailedDelete(fileSystemName, directory, filename, inputFlowFileContent, inputFlowFileContent, 404);
+        assertTrue(fileExists("", directory));
+    }
+
+    @Test
+    public void testDeleteFileFromNonExistentDirectory() {
+        // GIVEN
+        String directory = "TestDirectory";
+        String filename = "testFile.txt";
+        String inputFlowFileContent = "InputFlowFileContent";
+
+        // WHEN
+        // THEN
+        testFailedDelete(fileSystemName, directory, filename, inputFlowFileContent, inputFlowFileContent, 404);
     }
 
-    @Ignore
     @Test
-    public void testDeleteFile() throws Exception {
+    public void testDeleteFileFromNonExistentFileSystem() {
+        // GIVEN
+        String fileSystem = "NonExistentFileSystem";
+        String directory = "TestDirectory";
+        String filename = "testFile.txt";
+        String inputFlowFileContent = "InputFlowFileContent";
+
+        // WHEN
+        // THEN
+        testFailedDelete(fileSystem, directory, filename, inputFlowFileContent, inputFlowFileContent, 400);
+    }
+
+    @Test
+    public void testDeleteNonemptyDirectory() {

Review comment:
       Typo: NonEmpty




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