FormData.spec.ts

import { Blob } from "fetch-blob"
import { File } from "fetch-blob/file"
import { FormData as Form } from "formdata-polyfill/esm.min.js"
import { http } from "./index"

globalThis.Blob = Blob
globalThis.File = File
globalThis.FormData = Form
describe("form data", () => {
	const file = new Blob([JSON.stringify({ test: "testing", tester: "potato" }, null, 2)], { type: "application/json" })
	it("to", async () => {
		const result = http.FormData.to({ value: "value", file: file, test: "test", tester: "tester" })
		expect(result.get("*")).toEqual(
			new File([new TextEncoder().encode(JSON.stringify({ value: "value", test: "test", tester: "tester" }))], "blob")
		)
		expect(result.get("file") instanceof Blob).toBeTruthy()
	})
	it("from", async () => {
		const data = new FormData()
		data.append("request", "this is a test")
		data.append("file", file)
		const result = await http.FormData.from(data)
		expect(result).toEqual({ request: "this is a test", file: { test: "testing", tester: "potato" } })
	})
	it("from 2", async () => {
		const data = new FormData()
		data.append("key1", "value1")
		data.append("key2", "value2")
		data.append("file", file)
		const result = await http.FormData.from(data)
		expect(result).toEqual({ file: { test: "testing", tester: "potato" }, key1: "value1", key2: "value2" })
	})
	it("back and forth", async () => {
		const to = http.FormData.to({
			file: new File([new Uint8Array([97])], "myfile.jpeg", { type: "image/jpeg" }),
			net: [10, "EUR"],
			vat: [20, "EUR"],
			obj: {
				nestedNet: [10, "EUR"],
				nestedVat: [20, "EUR"],
			},
		})
		const from = await http.FormData.from(to)
		expect(from).toEqual({
			file: new File([new Uint8Array([97])], "myfile.jpeg", { type: "image/jpeg" }),
			net: [10, "EUR"],
			vat: [20, "EUR"],
			obj: {
				nestedNet: [10, "EUR"],
				nestedVat: [20, "EUR"],
			},
		})
	})
})