Adds selection expansion support for Contextual Search.

chrome/browser/android/contextualsearch/contextual_search_delegate_unittest.cc

 // 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/browser/android/contextualsearch/contextual_search_delegate.h"
 
 #include "base/memory/scoped_ptr.h"
 #include "base/message_loop/message_loop.h"
 #include "base/strings/utf_string_conversions.h"
+#include "base/values.h"
 #include "chrome/browser/android/contextualsearch/contextual_search_context.h"
 #include "components/search_engines/template_url_service.h"
 #include "net/url_request/test_url_fetcher_factory.h"
 #include "net/url_request/url_request_test_util.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
+using base::ListValue;
+
 namespace {
 
 const char kSomeSpecificBasePage[] = "http://some.specific.host.name.com";
 
 }  // namespace
 
 class ContextualSearchDelegateTest : public testing::Test {
  public:
   ContextualSearchDelegateTest() {}
   ~ContextualSearchDelegateTest() override {}
@@ skipping 249 matching lines @@
 }
 
 TEST_F(ContextualSearchDelegateTest, SurroundingTextNoBeforeText) {
   base::string16 surrounding = base::ASCIIToUTF16("Bogus ee ff gg");
   SetSurroundingContext(surrounding, 0, 5);
   delegate_->SendSurroundingText(5);
   EXPECT_EQ("", before_text());
   EXPECT_EQ("ee f", after_text());
 }
 
+TEST_F(ContextualSearchDelegateTest, ExtractMentionsStartEnd) {
+  ListValue mentions_list;
+  mentions_list.AppendInteger(1);
+  mentions_list.AppendInteger(2);
+  size_t start = 0;
+  size_t end = 0;
+  delegate_->ExtractMentionsStartEnd(mentions_list, &start, &end);
+  EXPECT_EQ(static_cast<size_t>(1), start);
+  EXPECT_EQ(static_cast<size_t>(2), end);
+}
+
 TEST_F(ContextualSearchDelegateTest, SurroundingTextForIcing) {
   base::string16 sample = base::ASCIIToUTF16("this is Barack Obama in office.");
   int limit_each_side = 3;
   size_t start = 8;
   size_t end = 20;
   base::string16 result =
       delegate_->SurroundingTextForIcing(sample, limit_each_side, &start, &end);
   EXPECT_EQ(static_cast<size_t>(3), start);
   EXPECT_EQ(static_cast<size_t>(15), end);
   EXPECT_EQ(base::ASCIIToUTF16("is Barack Obama in"), result);
@@ skipping 23 matching lines @@
   std::string alternate_term;
   std::string prevent_preload;
   delegate_->DecodeSearchTermsFromJsonResponse(json_with_escape, &search_term,
                                                &display_text, &alternate_term,
                                                &prevent_preload);
   EXPECT_EQ("obama", search_term);
   EXPECT_EQ("Barack Obama", display_text);
   EXPECT_EQ("barack obama", alternate_term);
   EXPECT_EQ("", prevent_preload);
 }