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/* atomic-file-output-stream and safe-file-output-stream should throw and
* exception if PR_APPEND is explicity specified without PR_TRUNCATE. */
const PR_WRONLY = 0x02;
const PR_CREATE_FILE = 0x08;
const PR_APPEND = 0x10;
const PR_TRUNCATE = 0x20;
const { Services } = Cu.import("resource://gre/modules/Services.jsm", {});
function check_flag(file, contractID, flags, throws) {
let stream = Cc[contractID].createInstance(Ci.nsIFileOutputStream);
if (throws) {
/* NS_ERROR_INVALID_ARG is reported as NS_ERROR_ILLEGAL_VALUE, since they
* are same value. */
Assert.throws(() => stream.init(file, flags, 0o644, 0),
/NS_ERROR_ILLEGAL_VALUE/);
} else {
stream.init(file, flags, 0o644, 0);
stream.close();
}
}
function run_test() {
let filename = "test.txt";
let file = Services.dirsvc.get("TmpD", Ci.nsIFile);
file.append(filename);
let tests = [
[PR_WRONLY | PR_CREATE_FILE | PR_APPEND | PR_TRUNCATE, false],
[PR_WRONLY | PR_CREATE_FILE | PR_TRUNCATE, false],
[PR_WRONLY | PR_CREATE_FILE | PR_APPEND, true],
[-1, false],
];
for (let contractID of ["@mozilla.org/network/atomic-file-output-stream;1",
"@mozilla.org/network/safe-file-output-stream;1"]) {
for (let [flags, throws] of tests) {
check_flag(file, contractID, flags, throws);
}
}
}
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