32 lines
990 B
TypeScript
32 lines
990 B
TypeScript
import { expect, it } from "./deps.testing.ts";
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import { attr, defined, options } from "./objects.ts";
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it("attr", () => {
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const getx = attr("x");
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expect(getx({ x: 4, y: 5 })).toBe(4);
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expect(getx({ x: undefined, y: 5 })).toBeUndefined();
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});
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it("defined", () => {
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expect(defined({})).toEqual({});
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expect(defined({ x: 1 })).toEqual({ x: 1 });
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expect(defined({ x: 1, y: undefined })).toEqual({ x: 1 });
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const obj = defined({ x: 1, y: undefined });
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// @ts-expect-error
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expect(obj.y).toBeUndefined();
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});
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it("options", () => {
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expect(options({})).toEqual({});
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expect(options({ x: 1, y: 2 }, { x: 3 })).toEqual({ x: 3, y: 2 });
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expect(options({ x: 1, y: 2 }, { x: 3 }, { x: 4 })).toEqual({ x: 4, y: 2 });
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expect(options({ x: 1, y: 2 }, { x: 3 }, { y: 0 })).toEqual({ x: 3, y: 0 });
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expect(options({ x: 1, y: 2 }, { x: undefined, y: 3 })).toEqual({
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x: 1,
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y: 3,
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});
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// @ts-expect-error
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expect(options({ x: 1 }, { y: 2 })).toEqual({ x: 1, y: 2 });
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});
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