export function mockGlobalFile() {
    // @ts-ignore
    global.File = class MockFile {
        name: string;

        size: number;

        type: string;

        properties?: FilePropertyBag;

        lastModified: number;

        constructor(
            parts: (string | Blob | ArrayBuffer | ArrayBufferView)[],
            name: string,
            properties?: FilePropertyBag
        ) {
            this.parts = parts;
            this.name = name;
            this.size = parts.join('').length;
            this.type = 'txt';
            this.properties = properties;
            this.lastModified = 1234567890000; // Sat Feb 13 2009 23:31:30 GMT+0000.
        }
    };
}

export function testFile(filename: string, size: number = 42) {
    return new File(['x'.repeat(size)], filename, undefined);
}
        parts: (string | Blob | ArrayBuffer | ArrayBufferView)[];
