Reorganize test cases

ts/test-node/conversations/isConversationTooBigToRing_test.ts

@@ -0,0 +1,49 @@
+// Copyright 2021 Signal Messenger, LLC
+// SPDX-License-Identifier: AGPL-3.0-only
+
+import { assert } from 'chai';
+import { times } from 'lodash';
+import { updateRemoteConfig } from '../../test-helpers/RemoteConfigStub';
+import { generateAci } from '../../types/ServiceId';
+
+import { isConversationTooBigToRing } from '../../conversations/isConversationTooBigToRing';
+
+const CONFIG_KEY = 'global.calling.maxGroupCallRingSize';
+
+describe('isConversationTooBigToRing', () => {
+  const fakeMemberships = (count: number) =>
+    times(count, () => ({ aci: generateAci(), isAdmin: false }));
+
+  it('returns false if there are no memberships (i.e., for a direct conversation)', () => {
+    assert.isFalse(isConversationTooBigToRing({}));
+    assert.isFalse(isConversationTooBigToRing({ memberships: [] }));
+  });
+
+  const textMaximum = (max: number): void => {
+    for (let count = 1; count < max; count += 1) {
+      const memberships = fakeMemberships(count);
+      assert.isFalse(isConversationTooBigToRing({ memberships }));
+    }
+    for (let count = max; count < max + 5; count += 1) {
+      const memberships = fakeMemberships(count);
+      assert.isTrue(isConversationTooBigToRing({ memberships }));
+    }
+  };
+
+  it('returns whether there are 16 or more people in the group, if there is nothing in remote config', async () => {
+    await updateRemoteConfig([]);
+    textMaximum(16);
+  });
+
+  it('returns whether there are 16 or more people in the group, if the remote config value is bogus', async () => {
+    await updateRemoteConfig([
+      { name: CONFIG_KEY, value: 'uh oh', enabled: true },
+    ]);
+    textMaximum(16);
+  });
+
+  it('returns whether there are 9 or more people in the group, if the remote config value is 9', async () => {
+    await updateRemoteConfig([{ name: CONFIG_KEY, value: '9', enabled: true }]);
+    textMaximum(9);
+  });
+});