enhanced the implementation of addParam

Author: reeshika-h

src/main/java/com/contentstack/cms/stack/Entry.java

@@ -35,6 +35,7 @@ public class Entry implements BaseImplementation<Entry> {
     protected final EntryService service;
     protected final String contentTypeUid;
     protected final String entryUid;
+    private int includeCounter = 1;
 
     protected Entry(Retrofit instance, Map<String, Object> headers, String contentTypeUid) {
         this.contentTypeUid = contentTypeUid;
@@ -82,15 +83,28 @@ public Entry addHeader(@NotNull String key, @NotNull String value) {
      * @param value query param value for the request
      * @return instance of {@link Entry}
      */
+    @Override
     public Entry addParam(@NotNull String key, @NotNull Object value) {
-        this.params.put(key, value);
+        if (key.equals("include[]")) {
+            if (value instanceof String[]) {
+                for (String item : (String[]) value) {
+                    this.params.put(key + includeCounter++, item);
+                }
+            } else if (value instanceof String) {
+                this.params.put(key + includeCounter++, value);
+            }
+        } else {
+            this.params.put(key, value);
+        }
         return this;
     }
 
 
     @Override
     public Entry addParams(@NotNull HashMap<String, Object> params) {
-        this.params.putAll(params);
+        for (Map.Entry<String, Object> entry : params.entrySet()) {
+            addParam(entry.getKey(), entry.getValue());
+        }
         return this;
     }
 

src/test/java/com/contentstack/cms/stack/EntryFieldUnitTests.java

@@ -2,13 +2,20 @@
 
 import com.contentstack.cms.Contentstack;
 import com.contentstack.cms.TestClient;
+import com.google.gson.JsonArray;
+
 import okhttp3.Request;
+
 import okhttp3.ResponseBody;
+import retrofit2.Response;
+
 import org.json.simple.JSONArray;
 import org.json.simple.JSONObject;
 import org.junit.jupiter.api.*;
 
+import java.io.IOException;
 import java.util.ArrayList;
+import java.util.Arrays;
 import java.util.Collection;
 import java.util.HashMap;
 import java.util.Map;
@@ -93,6 +100,23 @@ void testSingleEntryQuery() {
         Request resp = entryInstance.fetch().request();
         Assertions.assertEquals("include_publish_details=true&locale=en-us&include_workflow=false", resp.url().query());
     }
+    
+    @Test
+    void testaddParam(){
+        String[] array = {"reference","navigation_menu.page_reference"};
+        entryInstance.addParam("include[]", array);
+        Request request = entryInstance.find().request();
+        Assertions.assertEquals("include[]1=reference&include[]2=navigation_menu.page_reference", request.url().query());
+    }
+
+    @Test
+    void testaddParams() throws IOException{
+        HashMap<String, Object> paramslist = new HashMap<>();
+        paramslist.put("include[]",  new String[]{"reference", "navigation_menu.page_reference"});
+        entryInstance.addParams(paramslist);
+        Request request = entryInstance.find().request();
+       Assertions.assertEquals("include[]1=reference&include[]2=navigation_menu.page_reference", request.url().query());
+    }
 
     @Test
     void testSingleEntryEncodedPath() {