Decouple CSV Report file writing and formatting logic

Signed-off-by: Francis Toth <francis.toth@yoppworks.com>
Change-Id: I6168b71bb54192a806ff6aa437788bedad933c76
Issue-ID: SDC-2499

11 files changed, 303 insertions, 62 deletions

diff --git a/asdctool/src/main/java/org/openecomp/sdc/asdctool/impl/validator/report/FileType.java b/asdctool/src/main/java/org/openecomp/sdc/asdctool/impl/validator/report/FileType.java
new file mode 100644
index 0000000000..7598ae1bb8
--- /dev/null
+++ b/asdctool/src/main/java/org/openecomp/sdc/asdctool/impl/validator/report/FileType.java
@@ -0,0 +1,29 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * SDC
+ * ================================================================================
+ * Copyright (C) 2020 Bell Intellectual Property. All rights reserved.
+ * ================================================================================
+ * Licensed 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.
+ * ============LICENSE_END=========================================================
+ */
+
+package org.openecomp.sdc.asdctool.impl.validator.report;
+
+/**
+ * This interface provides some marker interfaces to prevent any type information lose when instantiating
+ * a {@link org.openecomp.sdc.asdctool.impl.validator.report.ReportFileWriter }.
+ */
+public interface FileType {
+    interface CSV extends FileType { }
+}
diff --git a/asdctool/src/main/java/org/openecomp/sdc/asdctool/impl/validator/report/Report.java b/asdctool/src/main/java/org/openecomp/sdc/asdctool/impl/validator/report/Report.java
index 68d7210e81..cf6fb0e8b1 100644
--- a/asdctool/src/main/java/org/openecomp/sdc/asdctool/impl/validator/report/Report.java
+++ b/asdctool/src/main/java/org/openecomp/sdc/asdctool/impl/validator/report/Report.java
@@ -2,7 +2,7 @@
  * ============LICENSE_START=======================================================
  * SDC
  * ================================================================================
- * Copyright (C) 2017 AT&T Intellectual Property. All rights reserved.
+ * Copyright (C) 2020 Bell Intellectual Property. All rights reserved.
  * ================================================================================
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/asdctool/src/main/java/org/openecomp/sdc/asdctool/impl/validator/report/ReportFile.java b/asdctool/src/main/java/org/openecomp/sdc/asdctool/impl/validator/report/ReportFile.java
new file mode 100644
index 0000000000..a0703f47e7
--- /dev/null
+++ b/asdctool/src/main/java/org/openecomp/sdc/asdctool/impl/validator/report/ReportFile.java
@@ -0,0 +1,51 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * SDC
+ * ================================================================================
+ * Copyright (C) 2020 Bell Intellectual Property. All rights reserved.
+ * ================================================================================
+ * Licensed 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.
+ * ============LICENSE_END=========================================================
+ */
+
+package org.openecomp.sdc.asdctool.impl.validator.report;
+
+/**
+ * Provides business logic in regards to file writing required by the validation tools
+ */
+public class ReportFile {
+
+    static public CSVFile makeCsvFile(ReportFileWriter<FileType.CSV> writer) {
+        writer.writeln("Vertex ID,Task Name,Success,Result Details,Result Description");
+        return new CSVFile(writer);
+    }
+
+    /**
+     * Provides csv writing business logic related to {@link org.openecomp.sdc.asdctool.main.ValidationTool}
+     */
+    public static final class CSVFile extends ReportFile {
+
+        private final ReportFileWriter<FileType.CSV> writer;
+
+        private CSVFile(ReportFileWriter<FileType.CSV> writer) {
+            this.writer = writer;
+        }
+
+        public void printAllResults(Report report) {
+            report.forEachSuccess((vertex, task, result) -> {
+                String resultLine = vertex + "," + task + "," + result.getStatus() + "," + result.getResult();
+                writer.writeln(resultLine);
+            });
+        }
+    }
+}
diff --git a/asdctool/src/main/java/org/openecomp/sdc/asdctool/impl/validator/report/ReportFileWriter.java b/asdctool/src/main/java/org/openecomp/sdc/asdctool/impl/validator/report/ReportFileWriter.java
new file mode 100644
index 0000000000..e1a0090cb9
--- /dev/null
+++ b/asdctool/src/main/java/org/openecomp/sdc/asdctool/impl/validator/report/ReportFileWriter.java
@@ -0,0 +1,69 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * SDC
+ * ================================================================================
+ * Copyright (C) Bell Intellectual Property. All rights reserved.
+ * ================================================================================
+ * Licensed 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.
+ * ============LICENSE_END=========================================================
+ */
+
+
+package org.openecomp.sdc.asdctool.impl.validator.report;
+
+import static java.nio.file.StandardOpenOption.APPEND;
+import static java.nio.file.StandardOpenOption.CREATE;
+
+import java.io.IOException;
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.nio.file.StandardOpenOption;
+import java.util.function.Consumer;
+
+/**
+ * Describes a writer for report's data
+ * @param <A> phantom type which is only used for type-safety to prevent mixing writers for TXT Report files
+ *           and CSV Report files
+ */
+@SuppressWarnings("unused")
+public abstract class ReportFileWriter<A extends FileType> {
+
+    abstract public void write(String s);
+
+    public void writeln(String s) {
+        write(s + "\n");
+    }
+
+    /**
+     *
+     * @param filePath The resulting file path
+     * @param onError error handling callback
+     * @param <A> phantom type which is only used for type-safety
+     */
+    public static <A extends FileType> ReportFileWriter<A> makeNioWriter(
+        Path filePath, Consumer<IOException> onError
+    ) {
+        return new ReportFileWriter<A>() {
+            @Override
+            public void write(String line) {
+                try {
+                    StandardOpenOption soo = Files.exists(filePath) ? APPEND : CREATE;
+                    Files.write(filePath, line.getBytes(), soo);
+                } catch (IOException ex) {
+                    onError.accept(ex);
+                }
+            }
+        };
+    }
+}
+
diff --git a/asdctool/src/main/java/org/openecomp/sdc/asdctool/impl/validator/utils/ReportManager.java b/asdctool/src/main/java/org/openecomp/sdc/asdctool/impl/validator/utils/ReportManager.java
index a1300cb70c..5b78df8c73 100644
--- a/asdctool/src/main/java/org/openecomp/sdc/asdctool/impl/validator/utils/ReportManager.java
+++ b/asdctool/src/main/java/org/openecomp/sdc/asdctool/impl/validator/utils/ReportManager.java
@@ -36,13 +36,12 @@ public class ReportManager {
 
     private static final Logger log = LoggerFactory.getLogger(ReportManager.class);
 
-    public static ReportManager make(String csvReportFilePath, String txtReportFilePath) {
-        return new ReportManager(csvReportFilePath, txtReportFilePath);
+    public static ReportManager make(String txtReportFilePath) {
+        return new ReportManager(txtReportFilePath);
     }
 
-    private ReportManager(String csvReportFilePath, String txtReportFilePath) {
+    private ReportManager(String txtReportFilePath) {
         try {
-            initCsvFile(csvReportFilePath);
             initReportFile(txtReportFilePath);
         } catch (IOException e) {
             log.info("Init file failed - {}", e.getClass().getSimpleName(), e);
@@ -55,13 +54,6 @@ public class ReportManager {
         Files.write(Paths.get(txtReportFilePath), sb.toString().getBytes());
     }
 
-    private void initCsvFile(String csvReportFilePath) throws IOException {
-        StrBuilder sb = new StrBuilder();
-        sb.append("Vertex ID,Task Name,Success,Result Details,Result Description");
-        sb.appendNewLine();
-        Files.write(Paths.get(csvReportFilePath), sb.toString().getBytes());
-    }
-
     public static void printValidationTaskStatus(GraphVertex vertexScanned, String taskName, boolean success,
         String outputFilePath) {
         String successStatus = success ? "success" : "failed";
@@ -107,7 +99,7 @@ public class ReportManager {
         writeReportLineToFile(sb.toString(), outputFilePath);
     }
 
-    public static void reportEndOfToolRun(Report report, String csvReportFilePath, String outputFilePath) {
+    public static void reportEndOfToolRun(Report report, String outputFilePath) {
         StrBuilder sb = new StrBuilder();
         sb.appendln("-----------------------------------Validator Tool Summary-----------------------------------");
         report.forEachFailure((taskName, failedVertices) -> {
@@ -117,21 +109,5 @@ public class ReportManager {
             sb.appendNewLine();
         });
         writeReportLineToFile(sb.toString(), outputFilePath);
-        printAllResults(report, csvReportFilePath);
-    }
-
-    public static void printAllResults(Report report, String csvReportFilePath) {
-        report.forEachSuccess((vertex, task, result) -> {
-            try {
-                String resultLine = vertex + "," + task + "," + result.getStatus() + "," + result.getResult();
-                Files.write(Paths.get(csvReportFilePath), resultLine.getBytes(),
-                    StandardOpenOption.APPEND);
-                Files.write(Paths.get(csvReportFilePath),
-                    new StrBuilder().appendNewLine().toString().getBytes(),
-                    StandardOpenOption.APPEND);
-            } catch (IOException e) {
-                log.info("write to file failed - {}", e.getClass().getSimpleName(), e);
-            }
-        });
     }
 }
diff --git a/asdctool/src/main/java/org/openecomp/sdc/asdctool/main/ValidationTool.java b/asdctool/src/main/java/org/openecomp/sdc/asdctool/main/ValidationTool.java
index f37a82d09b..754d163e77 100644
--- a/asdctool/src/main/java/org/openecomp/sdc/asdctool/main/ValidationTool.java
+++ b/asdctool/src/main/java/org/openecomp/sdc/asdctool/main/ValidationTool.java
@@ -20,10 +20,16 @@
 
 package org.openecomp.sdc.asdctool.main;
 
+import java.nio.file.Path;
+import java.nio.file.Paths;
 import org.openecomp.sdc.asdctool.impl.validator.ValidationToolBL;
 import org.openecomp.sdc.asdctool.impl.validator.config.ValidationConfigManager;
 import org.openecomp.sdc.asdctool.impl.validator.config.ValidationToolConfiguration;
+import org.openecomp.sdc.asdctool.impl.validator.report.FileType;
 import org.openecomp.sdc.asdctool.impl.validator.report.Report;
+import org.openecomp.sdc.asdctool.impl.validator.report.ReportFile;
+import org.openecomp.sdc.asdctool.impl.validator.report.ReportFile.CSVFile;
+import org.openecomp.sdc.asdctool.impl.validator.report.ReportFileWriter;
 import org.openecomp.sdc.asdctool.impl.validator.utils.ReportManager;
 import org.openecomp.sdc.be.config.ConfigurationManager;
 import org.openecomp.sdc.common.api.ConfigurationSource;
@@ -42,6 +48,8 @@ public class ValidationTool {
         String txtReportFilePath = ValidationConfigManager.txtReportFilePath(outputPath);
         String csvReportFilePath = ValidationConfigManager.csvReportFilePath(outputPath, System::currentTimeMillis);
 
+        CSVFile csvFile = ReportFile.makeCsvFile(makeNioWriter(Paths.get(csvReportFilePath)));
+
         String appConfigDir = args[1];
         AnnotationConfigApplicationContext context = initContext(appConfigDir);
         ValidationToolBL validationToolBL = context.getBean(ValidationToolBL.class);
@@ -49,7 +57,8 @@ public class ValidationTool {
         log.info("Start Validation Tool");
         Report report = Report.make();
         boolean result = validationToolBL.validateAll(report, txtReportFilePath);
-        ReportManager.reportEndOfToolRun(report, csvReportFilePath, txtReportFilePath);
+        ReportManager.reportEndOfToolRun(report, txtReportFilePath);
+        csvFile.printAllResults(report);
         if (result) {
             log.info("Validation finished successfully");
             System.exit(0);
@@ -59,6 +68,12 @@ public class ValidationTool {
         }
     }
 
+    private static <A extends FileType> ReportFileWriter<A> makeNioWriter(Path path) {
+        return ReportFileWriter.makeNioWriter(path, ex ->
+            log.info("write to file failed - {}", ex.getClass().getSimpleName(), ex)
+        );
+    }
+
     private static AnnotationConfigApplicationContext initContext(String appConfigDir) {
         ConfigurationSource configurationSource = new FSConfigurationSource(ExternalConfiguration.getChangeListener(), appConfigDir);
         ConfigurationManager configurationManager = new ConfigurationManager(configurationSource);
diff --git a/asdctool/src/test/java/org/openecomp/sdc/asdctool/impl/validator/report/ReportFileNioHelper.java b/asdctool/src/test/java/org/openecomp/sdc/asdctool/impl/validator/report/ReportFileNioHelper.java
new file mode 100644
index 0000000000..7a9bb0cf4d
--- /dev/null
+++ b/asdctool/src/test/java/org/openecomp/sdc/asdctool/impl/validator/report/ReportFileNioHelper.java
@@ -0,0 +1,52 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * SDC
+ * ================================================================================
+ * Copyright (C) 2020 Bell. All rights reserved.
+ * ================================================================================
+ * Licensed 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.
+ * ============LICENSE_END=========================================================
+ */
+
+package org.openecomp.sdc.asdctool.impl.validator.report;
+
+import java.io.IOException;
+import java.nio.file.Files;
+import java.nio.file.Paths;
+import java.util.function.Function;
+
+/**
+ * Provides facilities to for writing report files when testing
+ */
+public class ReportFileNioHelper {
+    private ReportFileNioHelper() {
+    }
+
+    /**
+     * Provides a transactional context for CSV report file writing
+     *
+     * @param csvReportFilePath The resulting file path
+     * @param f The function to write in a CSV file
+     * @param <A> A Phantom type only required for type-safety
+     */
+    public static <A> A withCsvFile(String csvReportFilePath, Function<ReportFile.CSVFile, A> f) {
+        ReportFile.CSVFile file = ReportFile.makeCsvFile(ReportFileWriterTestFactory.makeNioWriter(csvReportFilePath));
+        A result = f.apply(file);
+        try {
+            Files.delete(Paths.get(csvReportFilePath));
+            return result;
+        } catch (IOException ex) {
+            throw new RuntimeException(ex);
+        }
+    }
+}
diff --git a/asdctool/src/test/java/org/openecomp/sdc/asdctool/impl/validator/report/ReportFileWriterTestFactory.java b/asdctool/src/test/java/org/openecomp/sdc/asdctool/impl/validator/report/ReportFileWriterTestFactory.java
new file mode 100644
index 0000000000..364c08014e
--- /dev/null
+++ b/asdctool/src/test/java/org/openecomp/sdc/asdctool/impl/validator/report/ReportFileWriterTestFactory.java
@@ -0,0 +1,54 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * SDC
+ * ================================================================================
+ * Copyright (C) 2020 Bell Intellectual Property. All rights reserved.
+ * ================================================================================
+ * Licensed 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.
+ * ============LICENSE_END=========================================================
+ */
+
+package org.openecomp.sdc.asdctool.impl.validator.report;
+
+import static org.junit.Assert.fail;
+
+import java.nio.file.Path;
+import java.nio.file.Paths;
+
+/**
+ * Provides facilities to for creating report file writers when testing
+ */
+public class ReportFileWriterTestFactory {
+    private ReportFileWriterTestFactory() {
+    }
+
+    /**
+     * Alias for {@link org.openecomp.sdc.asdctool.impl.validator.report.ReportFileWriterTestFactory#makeNioWriter(Path)}
+     *
+     * @param path The resulting file path
+     * @param <A> a Phantom type used only for type-safety
+     */
+    public static <A extends FileType> ReportFileWriter<A> makeNioWriter(String path) {
+        Path p = Paths.get(path);
+        return makeNioWriter(p);
+    }
+
+    /**
+     * Creates a NIO writer storing the data written into a file on disk
+     * @param path The resulting file path
+     * @param <A> a Phantom type used only for type-safety
+     */
+    public static <A extends FileType> ReportFileWriter<A> makeNioWriter(Path path) {
+        return ReportFileWriter.makeNioWriter(path, ex -> fail(ex.getMessage()));
+    }
+}
diff --git a/asdctool/src/test/java/org/openecomp/sdc/asdctool/impl/validator/tasks/artifacts/ArtifactValidationUtilsTest.java b/asdctool/src/test/java/org/openecomp/sdc/asdctool/impl/validator/tasks/artifacts/ArtifactValidationUtilsTest.java
index 354714b0c2..7b35373768 100644
--- a/asdctool/src/test/java/org/openecomp/sdc/asdctool/impl/validator/tasks/artifacts/ArtifactValidationUtilsTest.java
+++ b/asdctool/src/test/java/org/openecomp/sdc/asdctool/impl/validator/tasks/artifacts/ArtifactValidationUtilsTest.java
@@ -21,11 +21,24 @@
 
 package org.openecomp.sdc.asdctool.impl.validator.tasks.artifacts;
 
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertFalse;
+import static org.junit.jupiter.api.Assertions.assertTrue;
+import static org.mockito.ArgumentMatchers.any;
+import static org.mockito.ArgumentMatchers.eq;
+import static org.mockito.Mockito.when;
+
 import fj.data.Either;
+import java.io.File;
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+import java.util.stream.IntStream;
 import org.junit.jupiter.api.AfterEach;
+import org.junit.jupiter.api.Assertions;
 import org.junit.jupiter.api.BeforeEach;
 import org.junit.jupiter.api.Test;
-import org.junit.jupiter.api.Assertions;
 import org.mockito.InjectMocks;
 import org.mockito.Mock;
 import org.mockito.MockitoAnnotations;
@@ -42,20 +55,6 @@ import org.openecomp.sdc.be.model.jsonjanusgraph.datamodel.TopologyTemplate;
 import org.openecomp.sdc.be.model.jsonjanusgraph.operations.TopologyTemplateOperation;
 import org.openecomp.sdc.be.model.operations.api.StorageOperationStatus;
 
-import java.io.File;
-import java.util.ArrayList;
-import java.util.HashMap;
-import java.util.List;
-import java.util.Map;
-import java.util.stream.IntStream;
-
-import static org.junit.jupiter.api.Assertions.assertEquals;
-import static org.junit.jupiter.api.Assertions.assertFalse;
-import static org.junit.jupiter.api.Assertions.assertTrue;
-import static org.mockito.ArgumentMatchers.any;
-import static org.mockito.ArgumentMatchers.eq;
-import static org.mockito.Mockito.when;
-
 public class ArtifactValidationUtilsTest {
 
     @Mock
@@ -85,7 +84,6 @@ public class ArtifactValidationUtilsTest {
     private static final String UNIQUE_ID_VERTEX = "321";
 
     private final static String resourcePath = new File("src/test/resources").getAbsolutePath();
-    private final static String csvReportFilePath = ValidationConfigManager.DEFAULT_CSV_PATH;
     private final static String txtReportFilePath = ValidationConfigManager.txtReportFilePath(resourcePath);
 
     ArtifactValidationUtilsTest () {
@@ -103,12 +101,12 @@ public class ArtifactValidationUtilsTest {
 
     @BeforeEach
     public void setup() {
-        ReportManager.make(csvReportFilePath, txtReportFilePath);
+        ReportManager.make(txtReportFilePath);
     }
 
     @AfterEach
     public void clean() {
-        ReportManagerHelper.cleanReports(csvReportFilePath, txtReportFilePath);
+        ReportManagerHelper.cleanReports(txtReportFilePath);
     }
 
     @Test
@@ -141,7 +139,7 @@ public class ArtifactValidationUtilsTest {
         // when
         ArtifactsVertexResult result =
             testSubject.validateArtifactsAreInCassandra(report, vertex, TASK_NAME, artifacts, txtReportFilePath);
-        ReportManager.reportEndOfToolRun(report, csvReportFilePath, txtReportFilePath);
+        ReportManager.reportEndOfToolRun(report, txtReportFilePath);
 
         List<String> reportOutputFile = ReportManagerHelper.getReportOutputFileAsList(txtReportFilePath);
 
diff --git a/asdctool/src/test/java/org/openecomp/sdc/asdctool/impl/validator/utils/ReportManagerHelper.java b/asdctool/src/test/java/org/openecomp/sdc/asdctool/impl/validator/utils/ReportManagerHelper.java
index 938b2c2202..5a8a36a88a 100644
--- a/asdctool/src/test/java/org/openecomp/sdc/asdctool/impl/validator/utils/ReportManagerHelper.java
+++ b/asdctool/src/test/java/org/openecomp/sdc/asdctool/impl/validator/utils/ReportManagerHelper.java
@@ -36,16 +36,11 @@ public class ReportManagerHelper {
         return readFileAsList(txtReportFilePath);
     }
 
-    public static List<String> getReportCsvFileAsList(String csvReportFilePath) {
-        return readFileAsList(csvReportFilePath);
-    }
-
-    public static void cleanReports(String csvReportFilePath, String txtReportFilePath) {
-        cleanFile(csvReportFilePath);
+    public static void cleanReports(String txtReportFilePath) {
         cleanFile(txtReportFilePath);
     }
 
-    private static List<String> readFileAsList(String filePath) {
+    public static List<String> readFileAsList(String filePath) {
         try (BufferedReader br = Files.newBufferedReader(Paths.get(filePath))) {
             return br.lines().collect(Collectors.toList());
         } catch (IOException e) {
diff --git a/asdctool/src/test/java/org/openecomp/sdc/asdctool/impl/validator/utils/ReportManagerTest.java b/asdctool/src/test/java/org/openecomp/sdc/asdctool/impl/validator/utils/ReportManagerTest.java
index c231ca3677..f28ca5dc41 100644
--- a/asdctool/src/test/java/org/openecomp/sdc/asdctool/impl/validator/utils/ReportManagerTest.java
+++ b/asdctool/src/test/java/org/openecomp/sdc/asdctool/impl/validator/utils/ReportManagerTest.java
@@ -27,6 +27,7 @@ import org.junit.jupiter.api.Test;
 import org.mockito.Mockito;
 import org.openecomp.sdc.asdctool.impl.validator.config.ValidationConfigManager;
 import org.openecomp.sdc.asdctool.impl.validator.report.Report;
+import org.openecomp.sdc.asdctool.impl.validator.report.ReportFileNioHelper;
 import org.openecomp.sdc.be.dao.jsongraph.GraphVertex;
 
 import java.io.File;
@@ -75,13 +76,13 @@ public class ReportManagerTest {
 
     @BeforeEach
     public void setup() {
-        ReportManager.make(csvReportFilePath, txtReportFilePath);
+        ReportManager.make(txtReportFilePath);
         successResult.setStatus(true);
     }
 
     @AfterEach
     public void clean() {
-        ReportManagerHelper.cleanReports(csvReportFilePath, txtReportFilePath);
+        ReportManagerHelper.cleanReports(txtReportFilePath);
     }
 
     @Test
@@ -90,9 +91,11 @@ public class ReportManagerTest {
         Report report = Report.make();
         report.addSuccess(VERTEX_1_ID, TASK_1_NAME, successResult);
         report.addSuccess(VERTEX_2_ID, TASK_2_NAME, successResult);
-        ReportManager.printAllResults(report, csvReportFilePath);
 
-        List<String> reportCsvFile = ReportManagerHelper.getReportCsvFileAsList(csvReportFilePath);
+        List<String> reportCsvFile = ReportFileNioHelper.withCsvFile(csvReportFilePath, file -> {
+            file.printAllResults(report);
+            return ReportManagerHelper.readFileAsList(csvReportFilePath);
+        });
 
         // then
         assertNotNull(reportCsvFile);
@@ -106,13 +109,12 @@ public class ReportManagerTest {
         // when
         Report report = Report.make();
         report.addFailure(TASK_1_NAME, VERTEX_1_ID);
-        ReportManager.reportEndOfToolRun(report, csvReportFilePath, txtReportFilePath);
 
+        ReportManager.reportEndOfToolRun(report, txtReportFilePath);
         List<String> reportOutputFile = ReportManagerHelper.getReportOutputFileAsList(txtReportFilePath);
 
         // then
         assertNotNull(reportOutputFile);
-
         assertEquals(EXPECTED_OUTPUT_FILE_HEADER, reportOutputFile.get(0));
         assertEquals(EXPECTED_OUTPUT_FILE_SUMMARY, reportOutputFile.get(2));
         assertEquals("Task: " + TASK_1_NAME, reportOutputFile.get(3));