1 files changed, 47 insertions, 0 deletions
diff --git a/dom/cache/test/mochitest/test_cache_overwrite.js b/dom/cache/test/mochitest/test_cache_overwrite.js
new file mode 100644
index 000000000..5b1c0142b
--- /dev/null
+++ b/dom/cache/test/mochitest/test_cache_overwrite.js
@@ -0,0 +1,47 @@
+var requestURL = "//mochi.test:8888/tests/dom/cache/test/mochitest/mirror.sjs?" + context;
+var response;
+var c;
+var responseText;
+var name = "match-mirror" + context;
+
+function checkResponse(r) {
+  ok(r !== response, "The objects should not be the same");
+  is(r.url, response.url.replace("#fragment", ""),
+     "The URLs should be the same");
+  is(r.status, response.status, "The status codes should be the same");
+  is(r.type, response.type, "The response types should be the same");
+  is(r.ok, response.ok, "Both responses should have succeeded");
+  is(r.statusText, response.statusText,
+     "Both responses should have the same status text");
+  is(r.headers.get("Mirrored"), response.headers.get("Mirrored"),
+     "Both responses should have the same Mirrored header");
+  return r.text().then(function(text) {
+    is(text, responseText, "The response body should be correct");
+  });
+}
+
+fetch(new Request(requestURL, {headers: {"Mirror": "bar"}})).then(function(r) {
+  is(r.headers.get("Mirrored"), "bar", "The server should give back the correct header");
+  response = r;
+  return response.text();
+}).then(function(text) {
+  responseText = text;
+  return caches.open(name);
+}).then(function(cache) {
+  c = cache;
+  return c.add(new Request(requestURL, {headers: {"Mirror": "foo"}}));
+}).then(function() {
+  // Overwrite the request, to replace the entry stored in response_headers
+  // with a different value.
+  return c.add(new Request(requestURL, {headers: {"Mirror": "bar"}}));
+}).then(function() {
+  return c.matchAll();
+}).then(function(r) {
+  is(r.length, 1, "Only one request should be in the cache");
+  return checkResponse(r[0]);
+}).then(function() {
+  return caches.delete(name);
+}).then(function(deleted) {
+  ok(deleted, "The cache should be deleted successfully");
+  testDone();
+});