import { expect, test } from "vitest"
import type { PruneNullishValues } from "./prune-nullish-values"
import { pruneNullishValues } from "./prune-nullish-values"

test("pruneNullishValues", () => {
	interface InputType {
		a: string
		b: string | null | undefined
		c?: string
		d: {
			a: string
			b: string | undefined
		}
	}

	const input: InputType = {
		a: "a",
		b: null,
		c: undefined,
		d: {
			a: "a",
			b: undefined,
		},
	}

	const output: PruneNullishValues<InputType> = {
		a: "a",
		d: {
			a: "a",
		},
	}

	expect(pruneNullishValues(input)).toEqual(output)
})