feat: Let Authorizers output an Authorization

test/unit/authorization/WebAclAuthorization.test.ts

@@ -0,0 +1,43 @@
+import { WebAclAuthorization } from '../../../src/authorization/WebAclAuthorization';
+import { RepresentationMetadata } from '../../../src/ldp/representation/RepresentationMetadata';
+import { ACL, AUTH } from '../../../src/util/Vocabularies';
+import 'jest-rdf';
+
+describe('A WebAclAuthorization', (): void => {
+  let authorization: WebAclAuthorization;
+  let metadata: RepresentationMetadata;
+
+  beforeEach(async(): Promise<void> => {
+    authorization = new WebAclAuthorization(
+      {
+        read: false,
+        append: false,
+        write: false,
+        control: false,
+      },
+      {
+        read: false,
+        append: false,
+        write: false,
+        control: false,
+      },
+    );
+
+    metadata = new RepresentationMetadata();
+  });
+
+  it('adds no metadata if there are no permissions.', async(): Promise<void> => {
+    expect(authorization.addMetadata(metadata)).toBeUndefined();
+    expect(metadata.quads()).toHaveLength(0);
+  });
+
+  it('adds corresponding acl metadata for all permissions present.', async(): Promise<void> => {
+    authorization.user.read = true;
+    authorization.user.write = true;
+    authorization.everyone.read = true;
+    expect(authorization.addMetadata(metadata)).toBeUndefined();
+    expect(metadata.quads()).toHaveLength(3);
+    expect(metadata.getAll(AUTH.terms.userMode)).toEqualRdfTermArray([ ACL.terms.Read, ACL.terms.Write ]);
+    expect(metadata.get(AUTH.terms.publicMode)).toEqualRdfTerm(ACL.terms.Read);
+  });
+});