diff --git a/test/activitypub/helpers.js b/test/activitypub/helpers.js
new file mode 100644
index 0000000000..23fc29be14
--- /dev/null
+++ b/test/activitypub/helpers.js
@@ -0,0 +1,60 @@
+'use strict';
+
+const utils = require('../../src/utils');
+const activitypub = require('../../src/activitypub');
+
+const Helpers = module.exports;
+
+Helpers.mocks = {};
+
+Helpers.mocks.note = (override = {}) => {
+	const baseUrl = 'https://example.org';
+	const uuid = utils.generateUUID();
+	const id = `${baseUrl}/object/${uuid}`;
+	const note = {
+		'@context': 'https://www.w3.org/ns/activitystreams',
+		id,
+		url: id,
+		type: 'Note',
+		to: ['https://www.w3.org/ns/activitystreams#Public'],
+		cc: ['https://example.org/user/foobar/followers'],
+		inReplyTo: null,
+		attributedTo: 'https://example.org/user/foobar',
+		name: utils.generateUUID(),
+		content: `<p>${utils.generateUUID()}</p>`,
+		published: new Date().toISOString(),
+		...override,
+	};
+
+	// If any values contain the hardcoded string "remove", remove that prop
+	Object.entries(note).forEach(([key, value]) => {
+		if (value === 'remove') {
+			delete note[key];
+		}
+	});
+	activitypub._cache.set(`0;${id}`, note);
+
+	return { id, note };
+};
+
+Helpers.mocks.create = (object) => {
+	// object is optional, will generate a public note if undefined
+	const baseUrl = 'https://example.org';
+	const uuid = utils.generateUUID();
+	const id = `${baseUrl}/activity/${uuid}`;
+
+	object = object || Helpers.mocks.note().note;
+	const activity = {
+		'@context': 'https://www.w3.org/ns/activitystreams',
+		id,
+		type: 'Create',
+		to: ['https://www.w3.org/ns/activitystreams#Public'],
+		cc: ['https://example.org/user/foobar/followers'],
+		actor: 'https://example.org/user/foobar',
+		object,
+	};
+
+	activitypub._cache.set(`0;${id}`, activity);
+
+	return { id, activity };
+};