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//
// 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);
}
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