Omnibox: Don't Barf When Suggestion is Mixed-Case Equivalent to Verbatim

chrome/browser/autocomplete/search_provider_unittest.cc

 // Copyright 2012 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/omnibox/browser/search_provider.h"
 
 #include <stddef.h>
 
 #include <string>
 
@@ skipping 2191 matching lines @@
       { { "a", true }, { "ab1", false }, { "ab2", false },
         kEmptyExpectedMatch },
       { { "ab1", true }, { "ab2", true }, { "ab", true },
         kEmptyExpectedMatch },
       "[\"ab\",[\"ab1\", \"ab2\"],[],[],"
        "{\"google:verbatimrelevance\":9000,"
         "\"google:suggestrelevance\":[8000, 7000]}]",
       { { "ab", true }, { "ab1", true }, { "ab2", false },
         kEmptyExpectedMatch } },
 
+    // If a suggestion is equivalent to the verbatim suggestion, it should be
+    // collapsed into one.  Furthermore, it should be allowed to be the default
+    // match even if it was not previously displayed inlined.  This test is
+    // mainly for checking the first_async_matches.
+    { "[\"a\",[\"A\"],[],[],"
+       "{\"google:verbatimrelevance\":9000, "
+        "\"google:suggestrelevance\":[9001]}]",
+      { { "A", true }, kEmptyExpectedMatch, kEmptyExpectedMatch,
+        kEmptyExpectedMatch },
+      { { "ab", true }, { "A", false }, kEmptyExpectedMatch,
+        kEmptyExpectedMatch },
+      std::string(),
+      { { "ab", true }, { "A", false }, kEmptyExpectedMatch,
+        kEmptyExpectedMatch } },
+
     // Note: it's possible that the suggest server returns a suggestion with
     // an inline autocompletion (that as usual we delay in allowing it to
     // be displayed as an inline autocompletion until the next keystroke),
     // then, in response to the next keystroke, the server returns a different
     // suggestion as an inline autocompletion.  This is not likely to happen.
     // Regardless, if it does, one could imagine three different behaviors:
     // - keep the original inline autocompletion until the next keystroke
     //   (i.e., don't abandon an inline autocompletion asynchronously), then
     //   use the new suggestion
     // - abandon all inline autocompletions upon the server response, then use
@@ skipping 1376 matching lines @@
 }
 
 TEST_F(SearchProviderTest, DoesNotProvideOnFocus) {
   AutocompleteInput input(
       base::ASCIIToUTF16("f"), base::string16::npos, std::string(), GURL(),
       metrics::OmniboxEventProto::INVALID_SPEC, false, true, true, true, true,
       ChromeAutocompleteSchemeClassifier(&profile_));
   provider_->Start(input, false);
   EXPECT_TRUE(provider_->matches().empty());
 }