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37 lines
919 B
TypeScript
37 lines
919 B
TypeScript
import { isEmpty } from "../object"
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describe("isEmpty", () => {
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describe("should return true for empty values", () => {
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it.each([
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["empty object", {}],
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["empty array", []],
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["null", null],
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["undefined", undefined],
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["string", "string"],
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["number", 123],
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["boolean true", true],
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["boolean false", false],
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])("%s", (_, value) => {
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expect(isEmpty(value)).toBe(true)
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})
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})
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describe("should return false for non-empty values", () => {
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it.each([
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["object with properties", { a: 1 }],
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["object with multiple properties", { a: 1, b: 2 }],
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["array with one item", [1]],
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["array with multiple items", [1, 2, 3]],
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])("%s", (_, value) => {
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expect(isEmpty(value)).toBe(false)
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})
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})
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it("should handle objects with null prototype", () => {
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const obj = Object.create(null)
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expect(isEmpty(obj)).toBe(true)
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obj.prop = "value"
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expect(isEmpty(obj)).toBe(false)
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})
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})
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