Some refactoring and added some JUnit tests

test/zutil/net/ws/rest/RestHttpPageTest.java

@@ -0,0 +1,49 @@
+package zutil.net.ws.rest;
+
+import org.junit.Test;
+import zutil.net.ws.WSInterface;
+
+import java.util.HashMap;
+
+import static org.junit.Assert.*;
+
+/**
+ * Created by Ziver on 2016-09-27.
+ */
+public class RestHttpPageTest {
+
+    public static class TestClass implements WSInterface{
+        public String hello(){
+            return "hello world";
+        }
+    }
+
+    @Test
+    public void noInput() throws Throwable {
+        RestHttpPage rest = new RestHttpPage(new TestClass());
+
+        HashMap<String,String> input = new HashMap<>();
+        String output = rest.execute("hello", input);
+        assertEquals("\"hello world\"\n", output);
+    }
+
+
+
+
+    public static class TestEchoClass implements WSInterface{
+        public String echo(@WSParamName("input") String input){
+            return "echo: "+input;
+        }
+    }
+
+    @Test
+    public void oneInput() throws Throwable {
+        RestHttpPage rest = new RestHttpPage(new TestEchoClass());
+
+        HashMap<String,String> input = new HashMap<>();
+        input.put("input", "test input");
+        String output = rest.execute("echo", input);
+        assertEquals("\"echo: test input\"\n", output);
+    }
+
+}