Add initial model mapping test case

Author: Mat Hansen

test/modelmapping.test.ts

@@ -0,0 +1,96 @@
+import test from 'ava';
+import { JsonForms } from '../src/core';
+
+test('get available options for reference attribute', t => {
+
+    const classA = {
+      "eClass": "http://www.eclipse.org/emf/2002/Ecore#//EClass",
+      "name": "classA",
+      "_id" : "id-class-a",
+      "eStructuralFeatures": [
+        {
+          "eClass": "http://www.eclipse.org/emf/2002/Ecore#//EAttribute",
+          "eType": {},
+          "name": "attributeOne"
+        },
+        {
+          "eClass": "http://www.eclipse.org/emf/2002/Ecore#//EAttribute",
+          "eType": {},
+          "name": "attributeTwo"
+        },
+        {
+          "eClass": "http://www.eclipse.org/emf/2002/Ecore#//EReference",
+          "name": "referenceOne",
+          "eType": "id-class-b"
+        }
+      ]
+    };
+
+    const classB = {
+      "eClass": "http://www.eclipse.org/emf/2002/Ecore#//EClass",
+        "name": "classB",
+        "_id": "id-class-B",
+        "eStructuralFeatures": [
+          {
+            "eClass": "http://www.eclipse.org/emf/2002/Ecore#//EAttribute",
+            "eType": {},
+            "name": "attributeOne"
+          },
+        ]
+    }
+
+    const enumOne = {
+      "eClass": "http://www.eclipse.org/emf/2002/Ecore#//EEnum",
+        "name": "enumOne",
+        "_id": "id-enum-one",
+        "eLiterals": [
+            "enumLiteralOne", "enumLiteralTwo", "enumLiteralThree"
+        ]
+    }
+
+    const dataTypeOne = {
+      "eClass": "http://www.eclipse.org/emf/2002/Ecore#//EDataType",
+       "name": "dataTypeOne",
+       "_id": "id-datatype-one",
+       "instanceClassName" : "dataTypeOne",
+       "instanceTypeName" : "java.lang.String"
+    }
+
+    // data has to consist of a bunch of eClassifiers
+    // so we can verify whether the filtering works
+    const data = {
+      "name": "packageOne",
+      "eClassifiers": [
+        classA,
+        classB,
+        enumOne,
+        dataTypeOne
+      ]
+    };
+
+    JsonForms.modelMapping = {
+      'attribute': 'eClass',
+      'mapping': {
+        'http://www.eclipse.org/emf/2002/Ecore#//EEnum': '#enum',
+        'http://www.eclipse.org/emf/2002/Ecore#//EClass': '#class',
+        'http://www.eclipse.org/emf/2002/Ecore#//EDataType': '#datatype',
+        'http://www.eclipse.org/emf/2002/Ecore#//EReference': '#reference',
+        'http://www.eclipse.org/emf/2002/Ecore#//EAttribute': '#attribute'
+      }
+    };
+    const candidates = [
+        classA,
+        classB,
+        enumOne,
+        dataTypeOne
+      ];
+
+    // test filtering
+    const matchingOptions = JsonForms.filterObjectsByType(candidates, "#class");
+    t.is(Object.keys(matchingOptions).length, 2, "array of length two expected");
+
+    // TODO: test retun of all available options
+    // const allOptions = JsonForms.filterObjectsByType(candidates, null);
+    // t.is(Object.keys(allOptions).length, 4, "array of length four expected");
+
+});