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