Adds a field trial flag to control whether to use an alternate Instant search base page URL for pre…

chrome/browser/search/search_unittest.cc

 // Copyright (c) 2013 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 "base/command_line.h"
 #include "base/metrics/field_trial.h"
 #include "base/metrics/histogram_base.h"
 #include "base/metrics/histogram_samples.h"
 #include "base/metrics/statistics_recorder.h"
 #include "base/prefs/pref_service.h"
@@ skipping 571 matching lines @@
             GetInstantURL(profile(), kDisableStartMargin, false));
 
   // Enable suggest. No difference.
   profile()->GetPrefs()->SetBoolean(prefs::kSearchSuggestEnabled, true);
   EXPECT_EQ(GURL("https://foo.com/instant?foo=foo#foo=foo&strk"),
             GetInstantURL(profile(), kDisableStartMargin, false));
 
   // Disable suggest. No Instant URL.
   profile()->GetPrefs()->SetBoolean(prefs::kSearchSuggestEnabled, false);
   EXPECT_EQ(GURL(), GetInstantURL(profile(), kDisableStartMargin, false));
+
+  // Use alternate Instant search base URL.
+  profile()->GetPrefs()->SetBoolean(prefs::kSearchSuggestEnabled, true);
+  ASSERT_TRUE(base::FieldTrialList::CreateFieldTrial(
+      "EmbeddedSearch", "Group1 espv:8 use_alternate_instant_url:1"));
+  EXPECT_EQ(GURL("https://foo.com/search?foo=foo&qbp=1#foo=foo&strk"),
+            GetInstantURL(profile(), kDisableStartMargin, false));
 }
 
 TEST_F(SearchTest, StartMarginCGI) {
   // No margin.
   profile()->GetPrefs()->SetBoolean(prefs::kSearchSuggestEnabled, true);
 
   EXPECT_EQ(GURL("https://foo.com/instant?foo=foo#foo=foo&strk"),
             GetInstantURL(profile(), kDisableStartMargin, false));
 
   // With start margin.
@@ skipping 115 matching lines @@
 }
 
 TEST_F(SearchTest, ShouldAllowPrefetchNonDefaultMatch_EnabledViaFieldTrial) {
   ASSERT_TRUE(base::FieldTrialList::CreateFieldTrial(
       "EmbeddedSearch",
       "Group1 espv:80 prefetch_results:1 allow_prefetch_non_default_match:1"));
   EXPECT_TRUE(ShouldAllowPrefetchNonDefaultMatch());
   EXPECT_EQ(80ul, EmbeddedSearchPageVersion());
 }
 
+TEST_F(SearchTest, ShouldUseAltInstantURL_DisabledViaFieldTrial) {
+  ASSERT_TRUE(base::FieldTrialList::CreateFieldTrial(
+      "EmbeddedSearch", "Group1 espv:8 use_alternate_instant_url:0"));
+  EXPECT_FALSE(ShouldUseAltInstantURL());
+}
+
+TEST_F(SearchTest, ShouldUseAltInstantURL_EnabledViaFieldTrial) {
+  ASSERT_TRUE(base::FieldTrialList::CreateFieldTrial(
+      "EmbeddedSearch", "Group1 espv:8 use_alternate_instant_url:1"));
+  EXPECT_TRUE(ShouldUseAltInstantURL());
+}
+
 TEST_F(SearchTest,
        ShouldPrerenderInstantUrlOnOmniboxFocus_PrefetchResultsFlagDisabled) {
   ASSERT_TRUE(base::FieldTrialList::CreateFieldTrial(
       "EmbeddedSearch",
       "Group1 espv:80 prefetch_results:0 "
       "prerender_instant_url_on_omnibox_focus:1"));
   EXPECT_FALSE(ShouldPrerenderInstantUrlOnOmniboxFocus());
   EXPECT_EQ(80ul, EmbeddedSearchPageVersion());
 }
 
@@ skipping 456 matching lines @@
 }
 
 TEST_F(OriginChipTest, CommandLineOnSrp) {
   CommandLine::ForCurrentProcess()->AppendSwitch(
       switches::kEnableOriginChipOnSrp);
   EXPECT_TRUE(ShouldDisplayOriginChip());
   EXPECT_EQ(ORIGIN_CHIP_ON_SRP, GetOriginChipCondition());
 }
 
 }  // namespace chrome