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Prepare for repo merge

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Signed-off-by: Michael Telatynski <7t3chguy@gmail.com>
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Michael Telatynski 2024-10-15 11:35:21 +01:00
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219
test/utils/maps-test.ts
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@ -1,219 +0,0 @@
/*
Copyright 2024 New Vector Ltd.
Copyright 2021 The Matrix.org Foundation C.I.C.
SPDX-License-Identifier: AGPL-3.0-only OR GPL-3.0-only
Please see LICENSE files in the repository root for full details.
*/
import { EnhancedMap, mapDiff } from "../../src/utils/maps";
describe("maps", () => {
describe("mapDiff", () => {
it("should indicate no differences when the pointers are the same", () => {
const a = new Map([
[1, 1],
[2, 2],
[3, 3],
]);
const result = mapDiff(a, a);
expect(result).toBeDefined();
expect(result.added).toBeDefined();
expect(result.removed).toBeDefined();
expect(result.changed).toBeDefined();
expect(result.added).toHaveLength(0);
expect(result.removed).toHaveLength(0);
expect(result.changed).toHaveLength(0);
});
it("should indicate no differences when there are none", () => {
const a = new Map([
[1, 1],
[2, 2],
[3, 3],
]);
const b = new Map([
[1, 1],
[2, 2],
[3, 3],
]);
const result = mapDiff(a, b);
expect(result).toBeDefined();
expect(result.added).toBeDefined();
expect(result.removed).toBeDefined();
expect(result.changed).toBeDefined();
expect(result.added).toHaveLength(0);
expect(result.removed).toHaveLength(0);
expect(result.changed).toHaveLength(0);
});
it("should indicate added properties", () => {
const a = new Map([
[1, 1],
[2, 2],
[3, 3],
]);
const b = new Map([
[1, 1],
[2, 2],
[3, 3],
[4, 4],
]);
const result = mapDiff(a, b);
expect(result).toBeDefined();
expect(result.added).toBeDefined();
expect(result.removed).toBeDefined();
expect(result.changed).toBeDefined();
expect(result.added).toHaveLength(1);
expect(result.removed).toHaveLength(0);
expect(result.changed).toHaveLength(0);
expect(result.added).toEqual([4]);
});
it("should indicate removed properties", () => {
const a = new Map([
[1, 1],
[2, 2],
[3, 3],
]);
const b = new Map([
[1, 1],
[2, 2],
]);
const result = mapDiff(a, b);
expect(result).toBeDefined();
expect(result.added).toBeDefined();
expect(result.removed).toBeDefined();
expect(result.changed).toBeDefined();
expect(result.added).toHaveLength(0);
expect(result.removed).toHaveLength(1);
expect(result.changed).toHaveLength(0);
expect(result.removed).toEqual([3]);
});
it("should indicate changed properties", () => {
const a = new Map([
[1, 1],
[2, 2],
[3, 3],
]);
const b = new Map([
[1, 1],
[2, 2],
[3, 4],
]); // note change
const result = mapDiff(a, b);
expect(result).toBeDefined();
expect(result.added).toBeDefined();
expect(result.removed).toBeDefined();
expect(result.changed).toBeDefined();
expect(result.added).toHaveLength(0);
expect(result.removed).toHaveLength(0);
expect(result.changed).toHaveLength(1);
expect(result.changed).toEqual([3]);
});
it("should indicate changed, added, and removed properties", () => {
const a = new Map([
[1, 1],
[2, 2],
[3, 3],
]);
const b = new Map([
[1, 1],
[2, 8],
[4, 4],
]); // note change
const result = mapDiff(a, b);
expect(result).toBeDefined();
expect(result.added).toBeDefined();
expect(result.removed).toBeDefined();
expect(result.changed).toBeDefined();
expect(result.added).toHaveLength(1);
expect(result.removed).toHaveLength(1);
expect(result.changed).toHaveLength(1);
expect(result.added).toEqual([4]);
expect(result.removed).toEqual([3]);
expect(result.changed).toEqual([2]);
});
it("should indicate changes for difference in pointers", () => {
const a = new Map([[1, {}]]); // {} always creates a new object
const b = new Map([[1, {}]]);
const result = mapDiff(a, b);
expect(result).toBeDefined();
expect(result.added).toBeDefined();
expect(result.removed).toBeDefined();
expect(result.changed).toBeDefined();
expect(result.added).toHaveLength(0);
expect(result.removed).toHaveLength(0);
expect(result.changed).toHaveLength(1);
expect(result.changed).toEqual([1]);
});
});
describe("EnhancedMap", () => {
// Most of these tests will make sure it implements the Map<K, V> class
it("should be empty by default", () => {
const result = new EnhancedMap();
expect(result.size).toBe(0);
});
it("should use the provided entries", () => {
const obj = { a: 1, b: 2 };
const result = new EnhancedMap(Object.entries(obj));
expect(result.size).toBe(2);
expect(result.get("a")).toBe(1);
expect(result.get("b")).toBe(2);
});
it("should create keys if they do not exist", () => {
const key = "a";
const val = {}; // we'll check pointers
const result = new EnhancedMap<string, any>();
expect(result.size).toBe(0);
let get = result.getOrCreate(key, val);
expect(get).toBeDefined();
expect(get).toBe(val);
expect(result.size).toBe(1);
get = result.getOrCreate(key, 44); // specifically change `val`
expect(get).toBeDefined();
expect(get).toBe(val);
expect(result.size).toBe(1);
get = result.get(key); // use the base class function
expect(get).toBeDefined();
expect(get).toBe(val);
expect(result.size).toBe(1);
});
it("should proxy remove to delete and return it", () => {
const val = {};
const result = new EnhancedMap<string, any>();
result.set("a", val);
expect(result.size).toBe(1);
const removed = result.remove("a");
expect(result.size).toBe(0);
expect(removed).toBeDefined();
expect(removed).toBe(val);
});
it("should support removing unknown keys", () => {
const val = {};
const result = new EnhancedMap<string, any>();
result.set("a", val);
expect(result.size).toBe(1);
const removed = result.remove("not-a");
expect(result.size).toBe(1);
expect(removed).not.toBeDefined();
});
});
});