Omnibox: Allow Bundled Omnibox Field Trial to Examine Instant Extended

chrome/browser/omnibox/omnibox_field_trial_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 "chrome/browser/omnibox/omnibox_field_trial.h"
 
 #include "base/basictypes.h"
+#include "base/command_line.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/metrics/field_trial.h"
 #include "base/strings/string16.h"
+#include "chrome/browser/search/search.h"
+#include "chrome/common/chrome_switches.h"
 #include "chrome/common/metrics/entropy_provider.h"
 #include "chrome/common/metrics/variations/variations_util.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 class OmniboxFieldTrialTest : public testing::Test {
  public:
   OmniboxFieldTrialTest() {
     ResetFieldTrialList();
   }
 
@@ skipping 119 matching lines @@
 
 TEST_F(OmniboxFieldTrialTest, GetDemotionsByTypeWithFallback) {
   // Must be the same as kBundledExperimentFieldTrialName
   // defined in omnibox_field_trial.cc.
   const std::string kTrialName = "OmniboxBundledExperimentV1";
   // Must be the same as kDemoteByTypeRule defined in
   // omnibox_field_trial.cc.
   const std::string kRuleName = "DemoteByType";
   {
     std::map<std::string, std::string> params;
-    params[kRuleName + ":1"] = "1:50,2:0";
-    params[kRuleName + ":3"] = "5:100";
-    params[kRuleName + ":*"] = "1:25";
+    params[kRuleName + ":1:*"] = "1:50,2:0";
+    params[kRuleName + ":3:*"] = "5:100";
+    params[kRuleName + ":*:*"] = "1:25";
     ASSERT_TRUE(chrome_variations::AssociateVariationParams(
         kTrialName, "A", params));
   }
   base::FieldTrialList::CreateFieldTrial(kTrialName, "A");
   OmniboxFieldTrial::DemotionMultipliers demotions_by_type;
   OmniboxFieldTrial::GetDemotionsByType(
       AutocompleteInput::NEW_TAB_PAGE, &demotions_by_type);
   ASSERT_EQ(2u, demotions_by_type.size());
   VerifyDemotion(demotions_by_type, AutocompleteMatchType::HISTORY_URL, 0.5);
   VerifyDemotion(demotions_by_type, AutocompleteMatchType::HISTORY_TITLE, 0.0);
   OmniboxFieldTrial::GetDemotionsByType(
       AutocompleteInput::HOMEPAGE, &demotions_by_type);
   ASSERT_EQ(1u, demotions_by_type.size());
   VerifyDemotion(demotions_by_type, AutocompleteMatchType::NAVSUGGEST, 1.0);
   OmniboxFieldTrial::GetDemotionsByType(
       AutocompleteInput::BLANK, &demotions_by_type);
   ASSERT_EQ(1u, demotions_by_type.size());
   VerifyDemotion(demotions_by_type, AutocompleteMatchType::HISTORY_URL, 0.25);
 }
 
 TEST_F(OmniboxFieldTrialTest, GetValueForRuleInContext) {
+  // This test starts with Instant Extended off (the default state), then
+  // enables Instant Extended and tests again on the same rules.
+
   // Must be the same as kBundledExperimentFieldTrialName
   // defined in omnibox_field_trial.cc.
   const std::string kTrialName = "OmniboxBundledExperimentV1";
   {
     std::map<std::string, std::string> params;
-    // Rule 1 has some exact matches and a global fallback.
-    params["rule1:1"] = "rule1-1-value";  // NEW_TAB_PAGE
-    params["rule1:3"] = "rule1-3-value";  // HOMEPAGE
-    params["rule1:*"] = "rule1-*-value";  // global
-    // Rule 2 has no exact matches but has a global fallback.
-    params["rule2:*"] = "rule2-*-value";  // global
-    // Rule 3 has an exact match but no global fallback.
-    params["rule3:4"] = "rule3-4-value";  // OTHER
+    // Rule 1 has some exact matches and fallbacks at every level.
+    params["rule1:1:0"] = "rule1-1-0-value";  // NEW_TAB_PAGE
+    params["rule1:3:0"] = "rule1-3-0-value";  // HOMEPAGE
+    params["rule1:4:1"] = "rule1-4-1-value";  // OTHER
+    params["rule1:4:*"] = "rule1-4-*-value";  // OTHER
+    params["rule1:*:1"] = "rule1-*-1-value";  // global
+    params["rule1:*:*"] = "rule1-*-*-value";  // global
+    // Rule 2 has no exact matches but has fallbacks.
+    params["rule2:*:0"] = "rule2-*-0-value";  // global
+    params["rule2:1:*"] = "rule2-1-*-value";  // NEW_TAB_PAGE
+    params["rule2:*:*"] = "rule2-*-*-value";  // global
+    // Rule 3 has only a global fallback.
+    params["rule3:*:*"] = "rule3-*-*-value";  // global
+    // Rule 4 has an exact match but no fallbacks.
+    params["rule4:4:0"] = "rule4-4-0-value";  // OTHER
     // Add a malformed rule to make sure it doesn't screw things up.
     params["unrecognized"] = "unrecognized-value";
     ASSERT_TRUE(chrome_variations::AssociateVariationParams(
         kTrialName, "A", params));
   }
 
   base::FieldTrialList::CreateFieldTrial(kTrialName, "A");
 
+  // Tests for Instant Extended is off.

[Peter Kasting, 2013/08/09 20:45:45]

Nit: "Tests with Instant Extended disabled."?

[Mark P, 2013/08/09 21:55:01]

Done.

   // Tests for rule 1.
   EXPECT_EQ(
-      "rule1-1-value",
+      "rule1-1-0-value",
       OmniboxFieldTrial::GetValueForRuleInContext(

[Peter Kasting, 2013/08/09 20:45:45]

Nit: It might be possible to condense this test case and improve its readability
by writing a shorter-named wrapper for this function (and moving the EOL
comments up a line).  Not sure.

[Mark P, 2013/08/09 21:55:01]

I wasn't sure either, but I went and tried it and like how it looks.

           "rule1", AutocompleteInput::NEW_TAB_PAGE));  // exact match

[Peter Kasting, 2013/08/09 20:45:45]

Nit: In principle, it would be nice if all these EOL comments aligned.

[Mark P, 2013/08/09 21:55:01]

Done. 

   EXPECT_EQ(
-      "rule1-*-value",
+      "rule1-*-*-value",
       OmniboxFieldTrial::GetValueForRuleInContext(
-          "rule1", AutocompleteInput::BLANK));  // fallback to global
+          "rule1", AutocompleteInput::BLANK));     // fallback to global
   EXPECT_EQ(
-      "rule1-3-value",
+      "rule1-3-0-value",
       OmniboxFieldTrial::GetValueForRuleInContext(
           "rule1", AutocompleteInput::HOMEPAGE));  // exact match
   EXPECT_EQ(
-      "rule1-*-value",
+      "rule1-4-*-value",
       OmniboxFieldTrial::GetValueForRuleInContext(
-          "rule1", AutocompleteInput::OTHER));  // fallback to global
+          "rule1", AutocompleteInput::OTHER));     // partial fallback
+  EXPECT_EQ(
+      "rule1-*-*-value",
+      OmniboxFieldTrial::GetValueForRuleInContext(
+          "rule1",                                 // fallback to global
+          AutocompleteInput::SEARCH_RESULT_PAGE_DOING_SEARCH_TERM_REPLACEMENT));
 
   // Tests for rule 2.
   EXPECT_EQ(
-      "rule2-*-value",
+      "rule2-*-0-value",
       OmniboxFieldTrial::GetValueForRuleInContext(
-          "rule2", AutocompleteInput::HOMEPAGE));  // fallback to global
+          "rule2", AutocompleteInput::HOMEPAGE));  // partial fallback
   EXPECT_EQ(
-      "rule2-*-value",
+      "rule2-*-0-value",
       OmniboxFieldTrial::GetValueForRuleInContext(
-          "rule2", AutocompleteInput::OTHER));  // fallback to global
+          "rule2", AutocompleteInput::OTHER));  // partial fallback
 
   // Tests for rule 3.
   EXPECT_EQ(
-      "",
+      "rule3-*-*-value",
       OmniboxFieldTrial::GetValueForRuleInContext(
-          "rule3", AutocompleteInput::BLANK));  // no global fallback
+          "rule3", AutocompleteInput::HOMEPAGE));  // fallback to global
+  EXPECT_EQ(
+      "rule3-*-*-value",
+      OmniboxFieldTrial::GetValueForRuleInContext(
+          "rule3", AutocompleteInput::OTHER));  // fallback to global
+
+  // Tests for rule 4.
   EXPECT_EQ(
       "",
       OmniboxFieldTrial::GetValueForRuleInContext(
-          "rule3", AutocompleteInput::HOMEPAGE));  // no global fallback
-  EXPECT_EQ(
-      "rule3-4-value",
-      OmniboxFieldTrial::GetValueForRuleInContext(
-          "rule3", AutocompleteInput::OTHER));  // exact match
-
-  // Tests for rule 4 (a missing rule).
+          "rule4", AutocompleteInput::BLANK));  // no global fallback
   EXPECT_EQ(
       "",
       OmniboxFieldTrial::GetValueForRuleInContext(
-          "rule4", AutocompleteInput::OTHER));  // no rule at all
+          "rule4", AutocompleteInput::HOMEPAGE));  // no global fallback
+  EXPECT_EQ(
+      "rule4-4-0-value",
+      OmniboxFieldTrial::GetValueForRuleInContext(
+          "rule4", AutocompleteInput::OTHER));  // exact match
+
+  // Tests for rule 5 (a missing rule).
+  EXPECT_EQ(
+      "",
+      OmniboxFieldTrial::GetValueForRuleInContext(
+          "rule5", AutocompleteInput::OTHER));  // no rule at all
+
+  // Now change the Instant Extended state and run analogous tests.
+  chrome::ResetInstantExtendedOptInStateGateForTest();
+  CommandLine::ForCurrentProcess()->AppendSwitch(
+      switches::kEnableInstantExtendedAPI);
+
+  // Tests for rule 1.
+  EXPECT_EQ(
+      "rule1-4-1-value",
+      OmniboxFieldTrial::GetValueForRuleInContext(
+          "rule1", AutocompleteInput::OTHER));  // exact match
+  EXPECT_EQ(
+      "rule1-*-1-value",
+      OmniboxFieldTrial::GetValueForRuleInContext(
+          "rule1", AutocompleteInput::BLANK));  // partial fallback
+  EXPECT_EQ(
+      "rule1-*-1-value",
+      OmniboxFieldTrial::GetValueForRuleInContext(
+          "rule1", AutocompleteInput::NEW_TAB_PAGE));  // partial fallback
+
+  // Tests for rule 2.
+  EXPECT_EQ(
+      "rule2-1-*-value",
+      OmniboxFieldTrial::GetValueForRuleInContext(
+          "rule2", AutocompleteInput::NEW_TAB_PAGE));  // partial fallback
+  EXPECT_EQ(
+      "rule2-*-*-value",
+      OmniboxFieldTrial::GetValueForRuleInContext(
+          "rule2", AutocompleteInput::OTHER));  // global fallback
+
+  // Tests for rule 3.
+  EXPECT_EQ(
+      "rule3-*-*-value",
+      OmniboxFieldTrial::GetValueForRuleInContext(
+          "rule3", AutocompleteInput::HOMEPAGE));  // global fallback
+  EXPECT_EQ(
+      "rule3-*-*-value",
+      OmniboxFieldTrial::GetValueForRuleInContext(
+          "rule3", AutocompleteInput::OTHER));  // global fallback
+
+  // Tests for rule 4.
+  EXPECT_EQ(
+      "",
+      OmniboxFieldTrial::GetValueForRuleInContext(
+          "rule4", AutocompleteInput::BLANK));  // no global fallback
+  EXPECT_EQ(
+      "",
+      OmniboxFieldTrial::GetValueForRuleInContext(
+          "rule4", AutocompleteInput::HOMEPAGE));  // no global fallback
+
+  // Tests for rule 5 (a missing rule).
+  EXPECT_EQ(
+      "",
+      OmniboxFieldTrial::GetValueForRuleInContext(
+          "rule5", AutocompleteInput::OTHER));  // no rule at all
 }