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Bug 1110446 P4 Add a test that orphanes Cache API body files. r=ehsan

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This commit is contained in:
Ben Kelly 2015-06-25 22:22:47 -07:00
parent 9eb291d902
commit 6f2f24e1a2
2 changed files with 179 additions and 0 deletions
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1
dom/cache/test/mochitest/mochitest.ini vendored
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@ -41,3 +41,4 @@ support-files =
[test_cache_restart.html]
[test_cache_shrink.html]
[test_cache_orphaned_cache.html]
[test_cache_orphaned_body.html]

178
dom/cache/test/mochitest/test_cache_orphaned_body.html vendored Normal file
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@ -0,0 +1,178 @@
<!-- Any copyright is dedicated to the Public Domain.
- http://creativecommons.org/publicdomain/zero/1.0/ -->
<!DOCTYPE HTML>
<html>
<head>
<title>Test Cache with QuotaManager Restart</title>
<script type="text/javascript" src="/tests/SimpleTest/SimpleTest.js"></script>
<script type="text/javascript" src="large_url_list.js"></script>
<link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
</head>
<body>
<script class="testbody" type="text/javascript">
function setupTestIframe() {
return new Promise(function(resolve) {
var iframe = document.createElement("iframe");
iframe.src = "empty.html";
iframe.onload = function() {
window.caches = iframe.contentWindow.caches;
resolve();
};
document.body.appendChild(iframe);
});
}
function clearStorage() {
return new Promise(function(resolve, reject) {
var principal = SpecialPowers.wrap(document).nodePrincipal;
var appId, inBrowser;
var nsIPrincipal = SpecialPowers.Components.interfaces.nsIPrincipal;
if (principal.appId != nsIPrincipal.UNKNOWN_APP_ID &&
principal.appId != nsIPrincipal.NO_APP_ID) {
appId = principal.appId;
inBrowser = principal.isInBrowserElement;
}
SpecialPowers.clearStorageForURI(document.documentURI, resolve, appId,
inBrowser);
});
}
function storageUsage() {
return new Promise(function(resolve, reject) {
var principal = SpecialPowers.wrap(document).nodePrincipal;
var appId, inBrowser;
var nsIPrincipal = SpecialPowers.Components.interfaces.nsIPrincipal;
if (principal.appId != nsIPrincipal.UNKNOWN_APP_ID &&
principal.appId != nsIPrincipal.NO_APP_ID) {
appId = principal.appId;
inBrowser = principal.isInBrowserElement;
}
SpecialPowers.getStorageUsageForURI(document.documentURI, resolve, appId,
inBrowser);
});
}
function resetStorage() {
return new Promise(function(resolve, reject) {
var principal = SpecialPowers.wrap(document).nodePrincipal;
var appId, inBrowser;
var nsIPrincipal = SpecialPowers.Components.interfaces.nsIPrincipal;
if (principal.appId != nsIPrincipal.UNKNOWN_APP_ID &&
principal.appId != nsIPrincipal.NO_APP_ID) {
appId = principal.appId;
inBrowser = principal.isInBrowserElement;
}
SpecialPowers.resetStorageForURI(document.documentURI, resolve, appId,
inBrowser);
});
}
function gc() {
return new Promise(function(resolve, reject) {
SpecialPowers.exactGC(window, resolve);
});
}
SimpleTest.waitForExplicitFinish();
SpecialPowers.pushPrefEnv({
"set": [["dom.caches.enabled", true],
["dom.quotaManager.testing", true]],
}, function() {
var name = 'orphanedBodyOwner';
var cache = null;
var response = null;
var initialUsage = 0;
var fullUsage = 0;
var resetUsage = 0;
var endUsage = 0;
var url = 'cache_add.js';
// start from a fresh origin directory so other tests do not influence our
// results
setupTestIframe().then(function() {
return clearStorage();
}).then(function() {
return storageUsage();
}).then(function(usage) {
is(0, usage, 'disk usage should be zero to start');
})
// Initialize and populate an initial cache to get the base sqlite pages
// and directory structure allocated.
.then(function() {
return caches.open(name);
}).then(function(c) {
return c.add(url);
}).then(function() {
return gc();
}).then(function() {
return caches.delete(name);
}).then(function(deleted) {
ok(deleted, 'cache should be deleted');
})
// Now measure initial disk usage
.then(function() {
return resetStorage();
}).then(function() {
return storageUsage();
}).then(function(usage) {
initialUsage = usage;
})
// Now re-populate the Cache object
.then(function() {
return caches.open(name);
}).then(function(c) {
cache = c;
return cache.add(url);
})
// Get a reference to the body we've stored in the Cache.
.then(function() {
return cache.match(url);
}).then(function(r) {
response = r;
return cache.delete(url);
}).then(function(result) {
ok(result, "Cache entry should be deleted");
})
// Reset the quota dir while the cache entry is deleted, but still referenced
// from the DOM. This forces the body to be orphaned.
.then(function() {
return resetStorage();
}).then(function() {
return storageUsage();
}).then(function(usage) {
fullUsage = usage;
ok(fullUsage > initialUsage, 'disk usage should have grown');
})
// Now perform a new Cache operation that will reopen the origin. This
// should clean up the orphaned body.
.then(function() {
return caches.match(url);
}).then(function(r) {
ok(!r, 'response should not exist in storage');
})
// Finally, verify orphaned data was cleaned up by re-checking the disk
// usage. Reset the storage first to ensure any WAL transaction files
// are flushed before measuring the usage.
.then(function() {
return resetStorage();
}).then(function() {
return storageUsage();
}).then(function(usage) {
endUsage = usage;
dump("### ### initial:" + initialUsage + ", full:" + fullUsage +
", end:" + endUsage + "\n");
ok(endUsage < fullUsage, 'disk usage should have shrank');
is(endUsage, initialUsage, 'disk usage should return to original');
SimpleTest.finish();
});
});
</script>
</body>
</html>