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-rw-r--r--netwerk/test/unit/test_bug654926_test_seek.js76
1 files changed, 76 insertions, 0 deletions
diff --git a/netwerk/test/unit/test_bug654926_test_seek.js b/netwerk/test/unit/test_bug654926_test_seek.js
new file mode 100644
index 0000000000..148e9f9043
--- /dev/null
+++ b/netwerk/test/unit/test_bug654926_test_seek.js
@@ -0,0 +1,76 @@
+"use strict";
+
+function gen_1MiB() {
+ var i;
+ var data = "x";
+ for (i = 0; i < 20; i++) {
+ data += data;
+ }
+ return data;
+}
+
+function write_and_check(str, data, len) {
+ var written = str.write(data, len);
+ if (written != len) {
+ do_throw(
+ "str.write has not written all data!\n" +
+ " Expected: " +
+ len +
+ "\n" +
+ " Actual: " +
+ written +
+ "\n"
+ );
+ }
+}
+
+function write_datafile(status, entry) {
+ Assert.equal(status, Cr.NS_OK);
+ var data = gen_1MiB();
+ var os = entry.openOutputStream(0, data.length);
+
+ write_and_check(os, data, data.length);
+
+ os.close();
+ entry.close();
+
+ // try to open the entry for appending
+ asyncOpenCacheEntry(
+ "http://data/",
+ "disk",
+ Ci.nsICacheStorage.OPEN_NORMALLY,
+ null,
+ open_for_readwrite
+ );
+}
+
+function open_for_readwrite(status, entry) {
+ Assert.equal(status, Cr.NS_OK);
+ var os = entry.openOutputStream(entry.dataSize, -1);
+
+ // Opening the entry for appending data calls nsDiskCacheStreamIO::Seek()
+ // which initializes mFD. If no data is written then mBufDirty is false and
+ // mFD won't be closed in nsDiskCacheStreamIO::Flush().
+
+ os.close();
+ entry.close();
+
+ do_test_finished();
+}
+
+function run_test() {
+ do_get_profile();
+
+ // clear the cache
+ evict_cache_entries();
+
+ asyncOpenCacheEntry(
+ "http://data/",
+ "disk",
+ Ci.nsICacheStorage.OPEN_NORMALLY,
+ null,
+ write_datafile
+ );
+
+ do_test_pending();
+}