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-rw-r--r--netwerk/test/unit/test_compressappend.js99
1 files changed, 99 insertions, 0 deletions
diff --git a/netwerk/test/unit/test_compressappend.js b/netwerk/test/unit/test_compressappend.js
new file mode 100644
index 0000000000..05f19be4b5
--- /dev/null
+++ b/netwerk/test/unit/test_compressappend.js
@@ -0,0 +1,99 @@
+//
+// Test that data can be appended to a cache entry even when the data is
+// compressed by the cache compression feature - bug 648429.
+//
+
+"use strict";
+
+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 TestAppend(compress, callback) {
+ this._compress = compress;
+ this._callback = callback;
+ this.run();
+}
+
+TestAppend.prototype = {
+ _compress: false,
+ _callback: null,
+
+ run() {
+ evict_cache_entries();
+ asyncOpenCacheEntry(
+ "http://data/",
+ "disk",
+ Ci.nsICacheStorage.OPEN_NORMALLY,
+ null,
+ this.writeData.bind(this)
+ );
+ },
+
+ writeData(status, entry) {
+ Assert.equal(status, Cr.NS_OK);
+ if (this._compress) {
+ entry.setMetaDataElement("uncompressed-len", "0");
+ }
+ var os = entry.openOutputStream(0, 5);
+ write_and_check(os, "12345", 5);
+ os.close();
+ entry.close();
+ asyncOpenCacheEntry(
+ "http://data/",
+ "disk",
+ Ci.nsICacheStorage.OPEN_NORMALLY,
+ null,
+ this.appendData.bind(this)
+ );
+ },
+
+ appendData(status, entry) {
+ Assert.equal(status, Cr.NS_OK);
+ var os = entry.openOutputStream(entry.storageDataSize, 5);
+ write_and_check(os, "abcde", 5);
+ os.close();
+ entry.close();
+
+ asyncOpenCacheEntry(
+ "http://data/",
+ "disk",
+ Ci.nsICacheStorage.OPEN_READONLY,
+ null,
+ this.checkData.bind(this)
+ );
+ },
+
+ checkData(status, entry) {
+ Assert.equal(status, Cr.NS_OK);
+ var self = this;
+ pumpReadStream(entry.openInputStream(0), function (str) {
+ Assert.equal(str.length, 10);
+ Assert.equal(str, "12345abcde");
+ entry.close();
+
+ executeSoon(self._callback);
+ });
+ },
+};
+
+function run_test() {
+ do_get_profile();
+ new TestAppend(false, run_test2);
+ do_test_pending();
+}
+
+function run_test2() {
+ new TestAppend(true, do_test_finished);
+}