refactor: Restructure source code folder

This way the location of certain classes should make more sense

test/unit/http/ldp/PatchOperationHandler.test.ts

@@ -0,0 +1,43 @@
+import { PatchOperationHandler } from '../../../../src/http/ldp/PatchOperationHandler';
+import type { Operation } from '../../../../src/http/Operation';
+import { BasicRepresentation } from '../../../../src/http/representation/BasicRepresentation';
+import type { Representation } from '../../../../src/http/representation/Representation';
+import { BasicConditions } from '../../../../src/storage/BasicConditions';
+import type { ResourceStore } from '../../../../src/storage/ResourceStore';
+import { BadRequestHttpError } from '../../../../src/util/errors/BadRequestHttpError';
+import { NotImplementedHttpError } from '../../../../src/util/errors/NotImplementedHttpError';
+
+describe('A PatchOperationHandler', (): void => {
+  let operation: Operation;
+  let body: Representation;
+  const conditions = new BasicConditions({});
+  const store = {} as unknown as ResourceStore;
+  const handler = new PatchOperationHandler(store);
+  beforeEach(async(): Promise<void> => {
+    body = new BasicRepresentation('', 'text/turtle');
+    operation = { method: 'PATCH', target: { path: 'http://test.com/foo' }, body, conditions, preferences: {}};
+    store.modifyResource = jest.fn(async(): Promise<any> => undefined);
+  });
+
+  it('only supports PATCH operations.', async(): Promise<void> => {
+    await expect(handler.canHandle({ operation })).resolves.toBeUndefined();
+    operation.method = 'GET';
+    await expect(handler.canHandle({ operation })).rejects.toThrow(NotImplementedHttpError);
+  });
+
+  it('errors if there is no body or content-type.', async(): Promise<void> => {
+    operation.body!.metadata.contentType = undefined;
+    await expect(handler.handle({ operation })).rejects.toThrow(BadRequestHttpError);
+    delete operation.body;
+    await expect(handler.handle({ operation })).rejects.toThrow(BadRequestHttpError);
+  });
+
+  it('deletes the resource from the store and returns the correct response.', async(): Promise<void> => {
+    const result = await handler.handle({ operation });
+    expect(store.modifyResource).toHaveBeenCalledTimes(1);
+    expect(store.modifyResource).toHaveBeenLastCalledWith(operation.target, body, conditions);
+    expect(result.statusCode).toBe(205);
+    expect(result.metadata).toBeUndefined();
+    expect(result.data).toBeUndefined();
+  });
+});