Feature: Do not add section without attached rows

Author: tonimoeckel

lib/QMBForm/src/main/java/com/quemb/qmbform/annotation/FormDescriptorAnnotationFactory.java

@@ -173,7 +173,9 @@ public int compare(Field lhs, Field rhs) {
                 }
             }
 
-            formDescriptor.addSection(sectionDescriptor);
+            if (sectionDescriptor.getRowCount()>0){
+                formDescriptor.addSection(sectionDescriptor);
+            }
         }
 
         return formDescriptor;

lib/QMBForm/src/test/java/com/quemb/qmbform/AnnotationFormTest.java

@@ -2,6 +2,7 @@
 
 import com.quemb.qmbform.annotation.FormDescriptorAnnotationFactory;
 import com.quemb.qmbform.annotation.FormElement;
+import com.quemb.qmbform.annotation.FormElementDelegate;
 import com.quemb.qmbform.annotation.FormOptionsObjectElement;
 import com.quemb.qmbform.descriptor.FormDescriptor;
 import com.quemb.qmbform.descriptor.RowDescriptor;
@@ -17,11 +18,14 @@
 import android.app.Activity;
 import android.widget.ListView;
 
+import java.lang.reflect.Field;
 import java.util.Map;
 
 import static junit.framework.Assert.assertTrue;
 import static org.hamcrest.MatcherAssert.assertThat;
 import static org.hamcrest.core.Is.is;
+import static org.hamcrest.core.IsNull.notNullValue;
+import static org.hamcrest.core.IsNull.nullValue;
 
 /**
  * Created by pmaccamp on 9/14/2015.
@@ -32,24 +36,42 @@ public class AnnotationFormTest {
     private Activity activity;
     private TestUserClass testUserClass;
 
-    public class TestUserClass {
+    public class TestUserClass implements FormElementDelegate {
         @FormElement(
                 rowDescriptorType = RowDescriptor.FormRowDescriptorTypeInteger,
-                required = true
+                required = true,
+                section = android.R.string.unknownName
         )
         public int age;
 
         @FormElement(
                 rowDescriptorType = RowDescriptor.FormRowDescriptorTypeText,
-                required = true
+                required = true,
+                section = android.R.string.unknownName
         )
         public String name;
 
+        @FormElement(
+                rowDescriptorType = RowDescriptor.FormRowDescriptorTypeText,
+                section = android.R.string.untitled
+        )
+        public String option;
+
 
         public TestUserClass(int age, String name, int bodyfat) {
             this.age = age;
             this.name = name;
         }
+
+        @Override
+        public boolean shouldAddRowDescriptorForField(RowDescriptor rowDescriptor, Field field) {
+
+            if (rowDescriptor.getTag().equals("option")){
+                return this.option != null;
+            }
+
+            return true;
+        }
     }
 
     @Before
@@ -73,6 +95,29 @@ public void hasCorrectFormValues() {
         assertThat((String) formValues.get("name"), is("John"));
     }
 
+    @Test
+    public void shouldNotIncludeSection() {
+
+        FormDescriptorAnnotationFactory factory = new FormDescriptorAnnotationFactory(activity);
+        FormDescriptor formDescriptor = factory.createFormDescriptorFromAnnotatedClass(testUserClass);
+
+        assertThat(formDescriptor.countOfSections(), is(1));
+        assertThat(formDescriptor.findRowDescriptor("option"), nullValue());
+
+    }
+
+    @Test
+    public void shouldIncludeSection() {
+
+        FormDescriptorAnnotationFactory factory = new FormDescriptorAnnotationFactory(activity);
+        testUserClass.option = "mock";
+        FormDescriptor formDescriptor = factory.createFormDescriptorFromAnnotatedClass(testUserClass);
+
+        assertThat(formDescriptor.countOfSections(), is(2));
+        assertThat(formDescriptor.findRowDescriptor("option"), notNullValue());
+
+    }
+
     @After
     public void tearDown() {