52 lines
2.1 KiB
JavaScript
52 lines
2.1 KiB
JavaScript
import { expect, test, describe } from "vitest";
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import updateIn from "./updateIn.js";
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describe("updateIn", () => {
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test("can update a single path described with a string", () => {
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const object = { a: { b: 0 } };
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const result = updateIn("a.b", 3)(object);
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expect(result).to.eql({ a: { b: 3 } });
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});
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test("can update a single path described with a string with a function", () => {
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const inc = (x) => x + 1;
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const object = { a: { b: 0 } };
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const result = updateIn("a.b", inc)(object);
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expect(result).to.eql({ a: { b: 1 } });
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});
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test("can update a single path described with an array", () => {
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const object = { a: { b: 0 } };
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const result = updateIn(["a", "b"], 3)(object);
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expect(result).to.eql({ a: { b: 3 } });
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});
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test("can update arrays", () => {
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const object = { a: [0, 0, 0] };
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const result = updateIn("a.1", 3)(object);
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expect(result).to.eql({ a: [0, 3, 0] });
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});
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test("can be partially applied", () => {
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const object = { a: { b: 0 } };
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const result = updateIn("a.b", 3)(object);
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expect(result).to.eql({ a: { b: 3 } });
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});
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test("replaces the object outright if the path is empty", () => {
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const object = {};
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const result = updateIn("", 3)(object);
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expect(result).to.equal(3);
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});
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test("freezes the result", () => {
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expect(Object.isFrozen(updateIn("a", 0)({}))).to.be.true;
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});
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test("can multiple elements of an array with *", () => {
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let object = { a: [{ b: 0 }, { b: 1 }, { b: 2 }] };
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let result = updateIn("a.*.b", (x) => x + 1)(object);
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expect(result).to.eql({ a: [{ b: 1 }, { b: 2 }, { b: 3 }] });
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object = { a: [0, 1, 2] };
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result = updateIn(["a", "*"], (x) => x + 1)(object);
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expect(result).to.eql({ a: [1, 2, 3] });
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});
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test("can update properties named *", () => {
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const object = { "*": 1, x: 1 };
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const result = updateIn("*", (x) => x + 1)(object);
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expect(result).to.eql({ "*": 2, x: 1 });
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});
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});
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//# sourceMappingURL=updateIn.test.js.map
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