add test for interface default method access from template

Author: adrienbaron

tests/tests-app/src/main/java/com/axellience/vuegwt/testsapp/client/common/InterfaceWithDefaultMethod.java

@@ -0,0 +1,10 @@
+package com.axellience.vuegwt.testsapp.client.common;
+
+import jsinterop.annotations.JsMethod;
+
+public interface InterfaceWithDefaultMethod {
+  @JsMethod
+  default String getDefaultText() {
+    return "a default method value";
+  }
+}

tests/tests-app/src/main/java/com/axellience/vuegwt/testsapp/client/common/SimpleObjectWithDefaultMethod.java

@@ -0,0 +1,4 @@
+package com.axellience.vuegwt.testsapp.client.common;
+
+public class SimpleObjectWithDefaultMethod implements InterfaceWithDefaultMethod {
+}

tests/tests-app/src/main/java/com/axellience/vuegwt/testsapp/client/components/basic/data/DataTestComponent.html

@@ -24,6 +24,7 @@
     <li id='character-data'>{{ characterData }}</li>
     <li id='string-data'>{{ stringData }}</li>
     <li id='simple-object-data'>{{ simpleObjectData == null ? "" : simpleObjectData.getStringProperty() }}</li>
+    <li id='default-method-on-data-object'>{{ simpleObjectWithDefaultMethod.getDefaultText() }}</li>
     <li id='string-starting-with-dollar'>{{ $dataStartingWithDollar }}</li>
     <li id='string-starting-with-underscore'>{{ _dataStartingWithUnderscore }}</li>
   </ul>

tests/tests-app/src/main/java/com/axellience/vuegwt/testsapp/client/components/basic/data/DataTestComponent.java

@@ -4,6 +4,7 @@
 import com.axellience.vuegwt.core.annotations.component.Data;
 import com.axellience.vuegwt.core.client.component.IsVueComponent;
 import com.axellience.vuegwt.testsapp.client.common.SimpleObject;
+import com.axellience.vuegwt.testsapp.client.common.SimpleObjectWithDefaultMethod;
 import jsinterop.annotations.JsMethod;
 import jsinterop.annotations.JsProperty;
 
@@ -64,6 +65,9 @@ public class DataTestComponent implements IsVueComponent {
   @Data
   SimpleObject simpleObjectData = null;
 
+  @Data
+  SimpleObjectWithDefaultMethod simpleObjectWithDefaultMethod = new SimpleObjectWithDefaultMethod();
+
   @Data
   String attributeValueData = null;
 

tests/tests-app/src/main/java/com/axellience/vuegwt/testsapp/client/components/inheritance/ChildComponent.html

@@ -3,4 +3,5 @@
   <div id="parentComputed">{{ parentComputed }}</div>
   <div id="childData">{{ childData }}</div>
   <div id="childComputed">{{ childComputed }}</div>
+  <div id="parentInterfaceDefaultMethod">{{ getDefaultText() }}</div>
 </div>

tests/tests-app/src/main/java/com/axellience/vuegwt/testsapp/client/components/inheritance/ChildComponent.java

@@ -3,10 +3,11 @@
 import com.axellience.vuegwt.core.annotations.component.Component;
 import com.axellience.vuegwt.core.annotations.component.Computed;
 import com.axellience.vuegwt.core.annotations.component.Data;
+import com.axellience.vuegwt.testsapp.client.common.InterfaceWithDefaultMethod;
 import jsinterop.annotations.JsMethod;
 
 @Component
-public class ChildComponent extends ParentComponent {
+public class ChildComponent extends ParentComponent implements InterfaceWithDefaultMethod {
   @Data
   protected String childData = "CHILD_INITIAL_DATA";
 

tests/tests-runner/src/test/javascript/components/basic/data.spec.js

@@ -293,6 +293,13 @@ describe('Data', () => {
     });
   });
 
+  describe('simpleObjectWithDefaultMethod', () => {
+    it('should display the value of the default method', async () => {
+      const domValue = getElement(component, '#default-method-on-data-object').innerText;
+      expect(domValue).to.equal('a default method value');
+    });
+  });
+
   describe('attributeValueData', () => {
     it('should not be displayed in the DOM if its value is null', () => {
       const element = getElement(component, '#data-attribute-element');

tests/tests-runner/src/test/javascript/components/inheritance/inheritance.spec.js

@@ -27,6 +27,11 @@ describe('Component inheritance', () => {
         'PARENT_INITIAL_DATA');
   });
 
+  it('should show result of interfaces default methods', () => {
+    expect(getElement(component, "#parentInterfaceDefaultMethod").innerText).to.equal(
+        'a default method value');
+  });
+
   it('should react to child data field change', async () => {
     expect(getElement(component, "#childData").innerText).to.equal(
         'CHILD_INITIAL_DATA');