feat(app): gate a collapsing guild header behind an experiment (#2779)

packages/schema/src/domains/tests/ClientBehaviorExperiment.test.ts

@@ -0,0 +1,34 @@
+// SPDX-License-Identifier: AGPL-3.0-or-later
+
+import {createClientBehaviorExperiment} from '@fluxer/schema/src/domains/experiment/ClientBehaviorExperiment';
+import {describe, expect, it} from 'vitest';
+
+const TARGETED_USER_CAP = 1000;
+
+function userIds(count: number): Array<string> {
+	return Array.from({length: count}, (_, index) => String(index + 1));
+}
+
+const rollout = createClientBehaviorExperiment({defaultRolloutSalt: 'client-behaviour-cap-test'});
+
+describe('createClientBehaviorExperiment targeted user lists', () => {
+	it('accepts an included list at the thousand entry cap', () => {
+		const config = rollout.ConfigSchema.parse({included_user_ids: userIds(TARGETED_USER_CAP)});
+
+		expect(config.included_user_ids).toHaveLength(TARGETED_USER_CAP);
+	});
+
+	it('rejects an included list above the thousand entry cap', () => {
+		expect(() => rollout.ConfigSchema.parse({included_user_ids: userIds(TARGETED_USER_CAP + 1)})).toThrow();
+	});
+
+	it('accepts an excluded list at the thousand entry cap', () => {
+		const config = rollout.ConfigSchema.parse({excluded_user_ids: userIds(TARGETED_USER_CAP)});
+
+		expect(config.excluded_user_ids).toHaveLength(TARGETED_USER_CAP);
+	});
+
+	it('rejects an excluded list above the thousand entry cap', () => {
+		expect(() => rollout.ConfigSchema.parse({excluded_user_ids: userIds(TARGETED_USER_CAP + 1)})).toThrow();
+	});
+});