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-rw-r--r--netwerk/test/unit/test_304_responses.js92
1 files changed, 92 insertions, 0 deletions
diff --git a/netwerk/test/unit/test_304_responses.js b/netwerk/test/unit/test_304_responses.js
new file mode 100644
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+++ b/netwerk/test/unit/test_304_responses.js
@@ -0,0 +1,92 @@
+"use strict";
+// https://bugzilla.mozilla.org/show_bug.cgi?id=761228
+
+const { HttpServer } = ChromeUtils.importESModule(
+ "resource://testing-common/httpd.sys.mjs"
+);
+
+ChromeUtils.defineLazyGetter(this, "URL", function () {
+ return "http://localhost:" + httpServer.identity.primaryPort;
+});
+
+var httpServer = null;
+const testFileName = "test_customConditionalRequest_304";
+const basePath = "/" + testFileName + "/";
+
+ChromeUtils.defineLazyGetter(this, "baseURI", function () {
+ return URL + basePath;
+});
+
+const unexpected304 = "unexpected304";
+const existingCached304 = "existingCached304";
+
+function make_channel(url) {
+ return NetUtil.newChannel({
+ uri: url,
+ loadUsingSystemPrincipal: true,
+ }).QueryInterface(Ci.nsIHttpChannel);
+}
+
+function alwaysReturn304Handler(metadata, response) {
+ response.setStatusLine(metadata.httpVersion, 304, "Not Modified");
+ response.setHeader("Returned-From-Handler", "1");
+}
+
+function run_test() {
+ evict_cache_entries();
+
+ httpServer = new HttpServer();
+ httpServer.registerPathHandler(
+ basePath + unexpected304,
+ alwaysReturn304Handler
+ );
+ httpServer.registerPathHandler(
+ basePath + existingCached304,
+ alwaysReturn304Handler
+ );
+ httpServer.start(-1);
+ run_next_test();
+}
+
+function consume304(request, buffer) {
+ request.QueryInterface(Ci.nsIHttpChannel);
+ Assert.equal(request.responseStatus, 304);
+ Assert.equal(request.getResponseHeader("Returned-From-Handler"), "1");
+ run_next_test();
+}
+
+// Test that we return a 304 response to the caller when we are not expecting
+// a 304 response (i.e. when the server shouldn't have sent us one).
+add_test(function test_unexpected_304() {
+ var chan = make_channel(baseURI + unexpected304);
+ chan.asyncOpen(new ChannelListener(consume304, null));
+});
+
+// Test that we can cope with a 304 response that was (erroneously) stored in
+// the cache.
+add_test(function test_304_stored_in_cache() {
+ asyncOpenCacheEntry(
+ baseURI + existingCached304,
+ "disk",
+ Ci.nsICacheStorage.OPEN_NORMALLY,
+ null,
+ function (entryStatus, cacheEntry) {
+ cacheEntry.setMetaDataElement("request-method", "GET");
+ cacheEntry.setMetaDataElement(
+ "response-head",
+ // eslint-disable-next-line no-useless-concat
+ "HTTP/1.1 304 Not Modified\r\n" + "\r\n"
+ );
+ cacheEntry.metaDataReady();
+ cacheEntry.close();
+
+ var chan = make_channel(baseURI + existingCached304);
+
+ // make it a custom conditional request
+ chan.QueryInterface(Ci.nsIHttpChannel);
+ chan.setRequestHeader("If-None-Match", '"foo"', false);
+
+ chan.asyncOpen(new ChannelListener(consume304, null));
+ }
+ );
+});