Fixes loklak#1580: Add Unit Test for UTF8.java file

test/org/loklak/tools/UTF8Test.java

@@ -0,0 +1,52 @@
+package org.loklak.tools;
+
+import org.loklak.tools.UTF8;
+import org.junit.Test;
+import static org.junit.Assert.assertEquals;
+/**
+ * These unit-tests test org.loklak.tools.UTF8.java
+ */
+public class UTF8Test{
+
+	@Test
+	public void testGetBytes(){
+		UTF8 utf8 = new UTF8();
+		String str = "loklak-server";
+		byte [] returnVal = utf8.getBytes(str);
+		String s = "";
+		for(int i=0; i<returnVal.length; ++i){
+			s += String.valueOf(returnVal[i]);
+		}
+		assertEquals("1081111071089710745115101114118101114", s);
+	}
+
+	@Test
+	public void testGetBytes2() {
+		StringBuilder str = new StringBuilder("loklak-server");
+		UTF8 utf8 = new UTF8();
+		byte[] returnVal = utf8.getBytes(str);
+		String s = "";
+		for(int i=0; i<returnVal.length; ++i){
+			s += String.valueOf(returnVal[i]);
+		}
+		assertEquals("1081111071089710745115101114118101114", s);
+	}
+
+	@Test
+	public void testBytestoString() {
+		UTF8 utf8 = new UTF8();
+		byte[] param = "loklak-server".getBytes();
+		String returnVal = utf8.String(param);
+		assertEquals("loklak-server", returnVal);
+	}
+
+	@Test
+	public void testBytestoString2() {
+		UTF8 utf8 = new UTF8();
+		byte[] param = "loklak-server".getBytes();
+		int offset = 0;
+		int length = param.length;
+		String returnVal = utf8.String(param, offset, length);
+		assertEquals("loklak-server", returnVal);
+	}
+}