added test file for the MakeTar class

dhp-workflows/dhp-graph-mapper/src/test/java/eu/dnetlib/dhp/oa/graph/dump/MakeTarTest.java

@@ -0,0 +1,58 @@
+
+package eu.dnetlib.dhp.oa.graph.dump;
+
+import java.io.IOException;
+import java.nio.file.Files;
+
+import org.apache.hadoop.conf.Configuration;
+import org.apache.hadoop.fs.*;
+import org.junit.jupiter.api.BeforeAll;
+import org.junit.jupiter.api.Test;
+
+public class MakeTarTest {
+	private static String workingDir;
+
+	@BeforeAll
+	public static void beforeAll() throws IOException {
+		workingDir = Files
+			.createTempDirectory(MakeTarTest.class.getSimpleName())
+			.toString();
+	}
+
+	@Test
+	public void testTar() throws IOException {
+		LocalFileSystem fs = FileSystem.getLocal(new Configuration());
+
+		fs
+			.copyFromLocalFile(
+				false, new Path(getClass()
+					.getResource("/eu/dnetlib/dhp/oa/graph/dump/zenodo/ni")
+					.getPath()),
+				new Path(workingDir + "/zenodo/ni/part-00000"));
+
+		fs
+			.copyFromLocalFile(
+				false, new Path(getClass()
+					.getResource("/eu/dnetlib/dhp/oa/graph/dump/zenodo/egi")
+					.getPath()),
+				new Path(workingDir + "/zenodo/ni/part-00001"));
+
+		fs
+			.copyFromLocalFile(
+				false, new Path(getClass()
+					.getResource("/eu/dnetlib/dhp/oa/graph/dump/zenodo/dh-ch")
+					.getPath()),
+				new Path(workingDir + "/zenodo/dh-ch/part-00000"));
+		fs
+			.copyFromLocalFile(
+				false, new Path(getClass()
+					.getResource("/eu/dnetlib/dhp/oa/graph/dump/zenodo/science-innovation-policy")
+					.getPath()),
+				new Path(workingDir + "/zenodo/ni/part-00002"));
+
+		String inputPath = workingDir + "/zenodo/";
+
+		MakeTar.makeTArArchive(fs, inputPath, "/tmp/out");
+
+	}
+}