[CSTPER-222] handle metadata reading for communities and collections

Community and Collection handle tests

src/app/core/shared/community.model.spec.ts

@@ -0,0 +1,31 @@
+import {Community} from './community.model';
+
+fdescribe('Community', () => {
+
+  fdescribe('Community handle value',  () => {
+
+    let metadataValue;
+    let handleValue;
+
+    beforeEach(() => {
+      metadataValue = {'dc.identifier.uri': [ { value: '123456789/1'}]};
+      handleValue = '11111111111/1';
+    })
+
+    it('should return the handle value from metadata', () => {
+      const community = Object.assign(new Community(), { metadata: metadataValue });
+      expect(community.handle).toEqual('123456789/1');
+    });
+
+    it('should return the handle value from metadata even when the handle field is provided', () => {
+      const community = Object.assign(new Community(), { handle: handleValue, metadata: metadataValue });
+      expect(community.handle).toEqual('123456789/1');
+    });
+
+    it('should return undefined if the handle value from metadata is not present', () => {
+      const community = Object.assign(new Community(), { handle: handleValue });
+      expect(community.handle).toEqual(undefined);
+    });
+  });
+
+});