[rAc - libaddressinput] slay a Helper class.

third_party/libaddressinput/chromium/cpp/test/retriever_test.cc

Index: third_party/libaddressinput/chromium/cpp/test/retriever_test.cc
diff --git a/third_party/libaddressinput/chromium/cpp/test/retriever_test.cc b/third_party/libaddressinput/chromium/cpp/test/retriever_test.cc
index 42a4b50074a8fd0f415a00f49bd58c32a7aca48d..197af467f5c1c9cac27dafd0b13b396176193d4d 100644
--- a/third_party/libaddressinput/chromium/cpp/test/retriever_test.cc
+++ b/third_party/libaddressinput/chromium/cpp/test/retriever_test.cc
@@ -122,6 +122,35 @@ TEST_F(RetrieverTest, FaultyDownloader) {
   EXPECT_TRUE(data_.empty());
 }
 
+// The downloader that doesn't get back to you.
+class HangingDownloader : public Downloader {
+ public:
+  HangingDownloader() {}
+  virtual ~HangingDownloader() {}
+
+  // Downloader implementation.
+  virtual void Download(const std::string& url,
+                        scoped_ptr<Callback> downloaded) const {}
+};
+
+TEST_F(RetrieverTest, RequestsDontStack) {
+  Retriever slow_retriever(FakeDownloader::kFakeDataUrl,
+                           scoped_ptr<const Downloader>(new HangingDownloader),
+                           scoped_ptr<Storage>(new FakeStorage));
+
+  slow_retriever.Retrieve(kKey, BuildCallback());
+  EXPECT_FALSE(success_);
+  EXPECT_TRUE(key_.empty());
+
+  // This request should be immediately rejected as the first one has not
+  // returned yet.
+  slow_retriever.Retrieve(kKey, BuildCallback());
+
+  EXPECT_FALSE(success_);
+  EXPECT_EQ(kKey, key_);
+  EXPECT_TRUE(data_.empty());
+}
+
 }  // namespace
 
 }  // namespace addressinput