65 lines
1.3 KiB
TypeScript
65 lines
1.3 KiB
TypeScript
import { expect, test } from "vitest";
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import {
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createDictionary,
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type Dictionary,
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deleteEntrySave,
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forEntry,
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getEntry,
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setEntrySave,
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} from "./Dictionary.ts";
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test("Dictionary", () => {
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const dict: Dictionary<string, number> = createDictionary([
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["a", 1],
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["b", 2],
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["c", 3],
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]);
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setEntrySave(dict, "foo", 42);
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setEntrySave(dict, "bar", 0);
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deleteEntrySave(dict, "bar");
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expect(getEntry(dict, "foo")).toBe(42);
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expect(getEntry(dict, "bar")).toBe(undefined);
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expect(dict.indices.size).toBe(dict.entries.length);
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let sum = 0;
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forEntry(dict, (value) => {
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sum += value;
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});
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expect(sum).toBe(48);
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});
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test("Dictionary don't mutate, when used 'save', while iterating", () => {
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const dict: Dictionary<string, number> = createDictionary([
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["a", 1],
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["b", 2],
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["c", 3],
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]);
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let sum = 0;
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forEntry(dict, (value, __, index) => {
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if (index < 1) {
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setEntrySave(dict, "d", 4);
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setEntrySave(dict, "e", 5);
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}
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sum += value;
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});
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expect(sum).toBe(6);
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expect(dict.indices.size === 5).toEqual(dict.entries.length === 5);
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sum = 0;
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forEntry(dict, (value, __, index) => {
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if (index < 1) {
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deleteEntrySave(dict, "d");
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deleteEntrySave(dict, "e");
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}
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sum += value;
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});
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expect(sum).toBe(15);
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expect(dict.indices.size === 3).toEqual(dict.entries.length === 3);
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});
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