Create an arbitrary file of any size, useful for testing

file_generator.js

// this can be thrown into chrome dev tools to create a dummy file for testing
function createLargeFile(fileName, fileSizeInGB) {
    const chunkSize = 1024 * 1024 * 10; // 10MB chunk size
    let fileSize = fileSizeInGB * 1024 * 1024 * 1024; // Convert GB to bytes
    let parts = [];

    while (fileSize > 0) {
        let size = Math.min(chunkSize, fileSize);
        let part = new Uint8Array(size);
        parts.push(part);
        fileSize -= size;
    }

    let blob = new Blob(parts, { type: 'application/octet-stream' });
    let link = document.createElement('a');
    link.href = window.URL.createObjectURL(blob);
    link.download = fileName;
    link.click();
}

createLargeFile('2GB_dummy_file', 2);