Allow embedders to share code to override UI strings.

chrome/browser/metrics/variations/ui_string_overrider_unittest.cc

 // Copyright 2014 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 "components/variations/service/ui_string_overrider.h"
+
 #include "chrome/browser/metrics/variations/generated_resources_map.h"
+#include "testing/gtest/include/gtest/gtest.h"
 
-#include "testing/gtest/include/gtest/gtest.h"
+// TODO(sdefresne): componentize this tests as part of the resolution
+// of http://crbug.com/534257 ("Decouple iOS port from using //chrome's
+// VariationsService client").
 
 namespace chrome_variations {
 
-TEST(GeneratedResourcesMapLookupTest, LookupNotFound) {
+class UIStringOverriderTest : public ::testing::Test {
+ public:
+  UIStringOverriderTest()
+      : provider_(kResourceHashes, kResourceIndices, kNumResources) {}
+
+  int GetResourceIndex(uint32_t hash) {
+    return provider_.GetResourceIndex(hash);
+  }
+
+ private:
+  variations::UIStringOverrider provider_;
+
+  DISALLOW_COPY_AND_ASSIGN(UIStringOverriderTest);
+};
+
+TEST_F(UIStringOverriderTest, LookupNotFound) {
   EXPECT_EQ(-1, GetResourceIndex(0));
   EXPECT_EQ(-1, GetResourceIndex(kResourceHashes[kNumResources - 1] + 1));
 
   // Lookup a hash that shouldn't exist.
   // 13257681U is 1 + the hash for IDS_ZOOM_NORMAL
   EXPECT_EQ(-1, GetResourceIndex(13257681U));
 }
 
-TEST(GeneratedResourcesMapLookupTest, LookupFound) {
+TEST_F(UIStringOverriderTest, LookupFound) {
   for (size_t i = 0; i < kNumResources; ++i)
     EXPECT_EQ(kResourceIndices[i], GetResourceIndex(kResourceHashes[i]));
 }
 
 }  // namespace chrome_variations