Honor preferContactAvatars field on AccountRecord

ts/test-both/util/areArraysMatchingSets_test.ts

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+// Copyright 2021 Signal Messenger, LLC
+// SPDX-License-Identifier: AGPL-3.0-only
+
+import { assert } from 'chai';
+
+import { areArraysMatchingSets } from '../../util/areArraysMatchingSets';
+
+describe('areArraysMatchingSets', () => {
+  it('returns true if arrays are both empty', () => {
+    const left: Array<string> = [];
+    const right: Array<string> = [];
+
+    assert.isTrue(areArraysMatchingSets(left, right));
+  });
+
+  it('returns true if arrays are equal', () => {
+    const left = [1, 2, 3];
+    const right = [1, 2, 3];
+
+    assert.isTrue(areArraysMatchingSets(left, right));
+  });
+
+  it('returns true if arrays are equal but out of order', () => {
+    const left = [1, 2, 3];
+    const right = [3, 1, 2];
+
+    assert.isTrue(areArraysMatchingSets(left, right));
+  });
+
+  it('returns true if arrays are equal but one has duplicates', () => {
+    const left = [1, 2, 3, 1];
+    const right = [1, 2, 3];
+
+    assert.isTrue(areArraysMatchingSets(left, right));
+  });
+
+  it('returns false if first array has missing elements', () => {
+    const left = [1, 2];
+    const right = [1, 2, 3];
+
+    assert.isFalse(areArraysMatchingSets(left, right));
+  });
+
+  it('returns false if second array has missing elements', () => {
+    const left = [1, 2, 3];
+    const right = [1, 2];
+
+    assert.isFalse(areArraysMatchingSets(left, right));
+  });
+
+  it('returns false if second array is empty', () => {
+    const left = [1, 2, 3];
+    const right: Array<number> = [];
+
+    assert.isFalse(areArraysMatchingSets(left, right));
+  });
+});