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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-19 00:47:55 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-19 00:47:55 +0000
commit26a029d407be480d791972afb5975cf62c9360a6 (patch)
treef435a8308119effd964b339f76abb83a57c29483 /netwerk/test/unit/test_localstreams.js
parentInitial commit. (diff)
downloadfirefox-26a029d407be480d791972afb5975cf62c9360a6.tar.xz
firefox-26a029d407be480d791972afb5975cf62c9360a6.zip
Adding upstream version 124.0.1.upstream/124.0.1
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'netwerk/test/unit/test_localstreams.js')
-rw-r--r--netwerk/test/unit/test_localstreams.js89
1 files changed, 89 insertions, 0 deletions
diff --git a/netwerk/test/unit/test_localstreams.js b/netwerk/test/unit/test_localstreams.js
new file mode 100644
index 0000000000..3e9c26b111
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+++ b/netwerk/test/unit/test_localstreams.js
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+// Tests bug 304414
+
+"use strict";
+
+const PR_RDONLY = 0x1; // see prio.h
+
+// Does some sanity checks on the stream and returns the number of bytes read
+// when the checks passed.
+function test_stream(stream) {
+ // This test only handles blocking streams; that's desired for file streams
+ // anyway.
+ Assert.equal(stream.isNonBlocking(), false);
+
+ // Check that the stream is not buffered
+ Assert.equal(
+ Cc["@mozilla.org/io-util;1"]
+ .getService(Ci.nsIIOUtil)
+ .inputStreamIsBuffered(stream),
+ false
+ );
+
+ // Wrap it in a binary stream (to avoid wrong results that
+ // scriptablestream would produce with binary content)
+ var binstream = Cc["@mozilla.org/binaryinputstream;1"].createInstance(
+ Ci.nsIBinaryInputStream
+ );
+ binstream.setInputStream(stream);
+
+ var numread = 0;
+ for (;;) {
+ Assert.equal(stream.available(), binstream.available());
+ var avail = stream.available();
+ Assert.notEqual(avail, -1);
+
+ // PR_UINT32_MAX and PR_INT32_MAX; the files we're testing with aren't that
+ // large.
+ Assert.notEqual(avail, Math.pow(2, 32) - 1);
+ Assert.notEqual(avail, Math.pow(2, 31) - 1);
+
+ if (!avail) {
+ // For blocking streams, available() only returns 0 on EOF
+ // Make sure that there is really no data left
+ var could_read = false;
+ try {
+ binstream.readByteArray(1);
+ could_read = true;
+ } catch (e) {
+ // We expect the exception, so do nothing here
+ }
+ if (could_read) {
+ do_throw("Data readable when available indicated EOF!");
+ }
+ return numread;
+ }
+
+ dump("Trying to read " + avail + " bytes\n");
+ // Note: Verification that this does return as much bytes as we asked for is
+ // done in the binarystream implementation
+ binstream.readByteArray(avail);
+
+ numread += avail;
+ }
+}
+
+function stream_for_file(file) {
+ var str = Cc["@mozilla.org/network/file-input-stream;1"].createInstance(
+ Ci.nsIFileInputStream
+ );
+ str.init(file, PR_RDONLY, 0, 0);
+ return str;
+}
+
+function stream_from_channel(file) {
+ var uri = Services.io.newFileURI(file);
+ return NetUtil.newChannel({
+ uri,
+ loadUsingSystemPrincipal: true,
+ }).open();
+}
+
+function run_test() {
+ // Get a file and a directory in order to do some testing
+ var file = do_get_file("../unit/data/test_readline6.txt");
+ var len = file.fileSize;
+ Assert.equal(test_stream(stream_for_file(file)), len);
+ Assert.equal(test_stream(stream_from_channel(file)), len);
+ var dir = file.parent;
+ test_stream(stream_from_channel(dir)); // Can't do size checking
+}