@navikt/ds-react/src/form/file-upload/utils/is-accepted-size.test.ts

React components from the Norwegian Labour and Welfare Administration.

import { isAcceptedSize } from "./is-accepted-size";

describe("isAcceptedSize", () => {
  it("should return true if maxSize is less than or equal to 0", () => {
    const file = new File([new Array(5000).join("a")], "filename.txt", {
      type: "text/plain",
    });
    expect(isAcceptedSize(file, -1)).toBe(true);
    expect(isAcceptedSize(file, 0)).toBe(true);
  });

  it("should return true if file size is less than or equal to maxSize", () => {
    const file = new File([new Array(5000).join("a")], "filename.txt", {
      type: "text/plain",
    });
    expect(isAcceptedSize(file, 5000)).toBe(true);
    expect(isAcceptedSize(file, 6000)).toBe(true);
  });

  it("should return false if file size is greater than maxSize", () => {
    const file = new File([new Array(5000).join("a")], "filename.txt", {
      type: "text/plain",
    });
    expect(isAcceptedSize(file, 4000)).toBe(false);
  });
});