[Icons NTP] Working prototype to fetch, store, and display big icons.

chrome/common/favicon/big_icon_url_parser_unittest.cc

Index: chrome/common/favicon/big_icon_url_parser_unittest.cc
diff --git a/chrome/common/favicon/big_icon_url_parser_unittest.cc b/chrome/common/favicon/big_icon_url_parser_unittest.cc
new file mode 100644
index 0000000000000000000000000000000000000000..9fb37a5d15e7653407cc4c50e0657a57c886d818
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+++ b/chrome/common/favicon/big_icon_url_parser_unittest.cc
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+// Copyright 2015 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "chrome/common/favicon/big_icon_url_parser.h"
+
+#include "base/memory/scoped_ptr.h"
+#include "testing/gtest/include/gtest/gtest.h"
+#include "url/gurl.h"
+
+using chrome::BigIconUrlParser;
+
+namespace chrome {
+
+namespace {
+
+const char kTestUrlStr[] = "https://www.google.ca/imghp?hl=en&tab=wi";
+
+}  // namespace
+
+TEST(BigIconUrlParserTest, ParseBigIconPathSuccess) {
+
+  // Everything populated.
+  {
+    chrome::BigIconUrlParser parser;
+    EXPECT_TRUE(parser.Parse(std::string("48/") + kTestUrlStr));
+    EXPECT_EQ(48, parser.size_in_pixels());
+    EXPECT_EQ(GURL(kTestUrlStr), GURL(parser.url_string()));
+    EXPECT_EQ(3U, parser.path_index());
+  }
+
+  // Empty URL.
+  {
+    chrome::BigIconUrlParser parser;
+    EXPECT_TRUE(parser.Parse("48/"));
+    EXPECT_EQ(48, parser.size_in_pixels());
+    EXPECT_EQ(GURL(), GURL(parser.url_string()));
+    EXPECT_EQ(3U, parser.path_index());
+  }
+
+  // Tolerate invalid URL.
+  {
+    chrome::BigIconUrlParser parser;
+    EXPECT_TRUE(parser.Parse("48/NOT A VALID URL"));
+    EXPECT_EQ(48, parser.size_in_pixels());
+    EXPECT_EQ("NOT A VALID URL", parser.url_string());
+    EXPECT_EQ(3U, parser.path_index());
+  }
+}
+
+TEST(BigIconUrlParserTest, ParseBigIconPathFailure) {
+  const char* test_cases[] = {
+    // Missing size.
+    "/http://www.google.com/",
+    // Bad size.
+    "-1/http://www.google.com/",
+  };
+  for (size_t i = 0; i < arraysize(test_cases); ++i) {
+    chrome::BigIconUrlParser parser;
+    EXPECT_FALSE(parser.Parse(test_cases[i])) << "test_cases[" << i << "]";
+  }
+}
+
+}  // namespace chrome