test_file_createFromNsIInputStream.js

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add_task(async function () {

  do_get_profile();

  let existingFile = Services.dirsvc

    .QueryInterface(Ci.nsIProperties)

    .get("ProfD", Ci.nsIFile);

  existingFile.append("exists.txt");

  existingFile.createUnique(Ci.nsIFile.NORMAL_FILE_TYPE, 0o600);

  let outStream = Cc[

    "@mozilla.org/network/file-output-stream;1"

  ].createInstance(Ci.nsIFileOutputStream);

  outStream.init(

    existingFile,

    0x02 | 0x08 | 0x20, // write, create, truncate

    0o666,

);

  let fileData = "Hello World!";

  outStream.write(fileData, fileData.length);

  outStream.close();

  let inputStream = Cc[

    "@mozilla.org/network/file-input-stream;1"

  ].createInstance(Ci.nsIFileInputStream);

  inputStream.init(existingFile, -1, 0, 0);

  let file = File.createFromNsIInputStream(inputStream, fileData.length, {

    name: "exists.txt",

    type: "text/plain",

    lastModified: existingFile.lastModifiedTime,

});

  Assert.equal(file.name, "exists.txt", "File name should match");

  Assert.equal(file.type, "text/plain", "File type should match");

  Assert.equal(file.size, existingFile.fileSize, "File size should match");

  Assert.equal(

    file.lastModified,

    existingFile.lastModifiedTime,

    "File last modified time should match"

);

  Assert.equal(await file.text(), fileData, "File content should match");

  // Clean up

  inputStream = null;

  file = null;

  Cu.forceGC();

  Cu.forceCC();

  existingFile.remove(false);

  ok(!existingFile.exists(), "File should be removed");

});