Removing Variations support for google_update_experiment_id.

components/variations/experiment_labels_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/experiment_labels.h"
 
 #include <stddef.h>
 
 #include <set>
 #include <string>
 #include <vector>
 
 #include "base/macros.h"
 #include "base/metrics/field_trial.h"
 #include "base/strings/string_split.h"
 #include "base/strings/utf_string_conversions.h"
 #include "components/variations/variations_associated_data.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 namespace variations {
 
-TEST(ExperimentLabelsTest, BuildGoogleUpdateExperimentLabel) {
-  const variations::VariationID TEST_VALUE_A = 3300200;
-  const variations::VariationID TEST_VALUE_B = 3300201;
-  const variations::VariationID TEST_VALUE_C = 3300202;
-  const variations::VariationID TEST_VALUE_D = 3300203;
-
-  struct {
-    const char* active_group_pairs;
-    const char* expected_ids;
-  } test_cases[] = {
-    // Empty group.
-    {"", ""},
-    // Group of 1.
-    {"FieldTrialA#Default", "3300200"},
-    // Group of 1, doesn't have an associated ID.
-    {"FieldTrialA#DoesNotExist", ""},
-    // Group of 3.
-    {"FieldTrialA#Default#FieldTrialB#Group1#FieldTrialC#Default",
-     "3300200#3300201#3300202"},
-    // Group of 3, one doesn't have an associated ID.
-    {"FieldTrialA#Default#FieldTrialB#DoesNotExist#FieldTrialC#Default",
-     "3300200#3300202"},
-    // Group of 3, all three don't have an associated ID.
-    {"FieldTrialX#Default#FieldTrialB#DoesNotExist#FieldTrialC#Default",
-     "3300202"},
-  };
-
-  // Register a few VariationIDs.
-  AssociateGoogleVariationID(variations::GOOGLE_UPDATE_SERVICE, "FieldTrialA",
-                             "Default", TEST_VALUE_A);
-  AssociateGoogleVariationID(variations::GOOGLE_UPDATE_SERVICE, "FieldTrialB",
-                             "Group1", TEST_VALUE_B);
-  AssociateGoogleVariationID(variations::GOOGLE_UPDATE_SERVICE, "FieldTrialC",
-                             "Default", TEST_VALUE_C);
-  AssociateGoogleVariationID(variations::GOOGLE_UPDATE_SERVICE, "FieldTrialD",
-                             "Default", TEST_VALUE_D);  // Not actually used.
-
-  for (size_t i = 0; i < arraysize(test_cases); ++i) {
-    // Parse the input groups.
-    base::FieldTrial::ActiveGroups groups;
-    std::vector<std::string> group_data = base::SplitString(
-        test_cases[i].active_group_pairs, "#",
-        base::TRIM_WHITESPACE, base::SPLIT_WANT_ALL);
-    ASSERT_EQ(0U, group_data.size() % 2);
-    for (size_t j = 0; j < group_data.size(); j += 2) {
-      base::FieldTrial::ActiveGroup group;
-      group.trial_name = group_data[j];
-      group.group_name = group_data[j + 1];
-      groups.push_back(group);
-    }
-
-    // Parse the expected output.
-    std::vector<std::string> expected_ids_list = base::SplitString(
-        test_cases[i].expected_ids, "#",
-        base::TRIM_WHITESPACE, base::SPLIT_WANT_ALL);
-
-    std::string experiment_labels_string = base::UTF16ToUTF8(
-        BuildGoogleUpdateExperimentLabel(groups));
-
-    // Split the VariationIDs from the labels for verification below.
-    std::set<std::string> parsed_ids;
-    for (const std::string& label : base::SplitString(
-             experiment_labels_string, ";",
-             base::TRIM_WHITESPACE, base::SPLIT_WANT_ALL)) {
-      // The ID is precisely between the '=' and '|' characters in each label.
-      size_t index_of_equals = label.find('=');
-      size_t index_of_pipe = label.find('|');
-      ASSERT_NE(std::string::npos, index_of_equals);
-      ASSERT_NE(std::string::npos, index_of_pipe);
-      ASSERT_GT(index_of_pipe, index_of_equals);
-      parsed_ids.insert(label.substr(index_of_equals + 1,
-                                     index_of_pipe - index_of_equals - 1));
-    }
-
-    // Verify that the resulting string contains each of the expected labels,
-    // and nothing more. Note that the date is stripped out and ignored.
-    for (std::vector<std::string>::const_iterator it =
-             expected_ids_list.begin(); it != expected_ids_list.end(); ++it) {
-      std::set<std::string>::iterator it2 = parsed_ids.find(*it);
-      EXPECT_TRUE(parsed_ids.end() != it2);
-      parsed_ids.erase(it2);
-    }
-    EXPECT_TRUE(parsed_ids.empty());
-  }  // for
-}
-
-TEST(ExperimentLabelsTest, CombineExperimentLabels) {
-  struct {
-    const char* variations_labels;
-    const char* other_labels;
-    const char* expected_label;
-  } test_cases[] = {
-    {"A=B|Tue, 21 Jan 2014 15:30:21 GMT",
-     "C=D|Tue, 21 Jan 2014 15:30:21 GMT",
-     "C=D|Tue, 21 Jan 2014 15:30:21 GMT;A=B|Tue, 21 Jan 2014 15:30:21 GMT"},
-    {"A=B|Tue, 21 Jan 2014 15:30:21 GMT",
-     "",
-     "A=B|Tue, 21 Jan 2014 15:30:21 GMT"},
-    {"",
-     "A=B|Tue, 21 Jan 2014 15:30:21 GMT",
-     "A=B|Tue, 21 Jan 2014 15:30:21 GMT"},
-    {"A=B|Tue, 21 Jan 2014 15:30:21 GMT;C=D|Tue, 21 Jan 2014 15:30:21 GMT",
-     "P=Q|Tue, 21 Jan 2014 15:30:21 GMT;X=Y|Tue, 21 Jan 2014 15:30:21 GMT",
-     "P=Q|Tue, 21 Jan 2014 15:30:21 GMT;X=Y|Tue, 21 Jan 2014 15:30:21 GMT;"
-     "A=B|Tue, 21 Jan 2014 15:30:21 GMT;C=D|Tue, 21 Jan 2014 15:30:21 GMT"},
-    {"",
-     "",
-     ""},
-  };
-
-  for (size_t i = 0; i < arraysize(test_cases); ++i) {
-    std::string result = base::UTF16ToUTF8(CombineExperimentLabels(
-        base::ASCIIToUTF16(test_cases[i].variations_labels),
-        base::ASCIIToUTF16(test_cases[i].other_labels)));
-    EXPECT_EQ(test_cases[i].expected_label, result);
-  }
-}
-
 TEST(ExperimentLabelsTest, ExtractNonVariationLabels) {
   struct {
     const char* input_label;
     const char* expected_output;
   } test_cases[] = {
-    // Empty
-    {"", ""},
-    // One
-    {"gcapi_brand=123|Tue, 21 Jan 2014 15:30:21 GMT",
-     "gcapi_brand=123|Tue, 21 Jan 2014 15:30:21 GMT"},
-    // Three
-    {"CrVar1=123|Tue, 21 Jan 2014 15:30:21 GMT;"
-     "experiment1=456|Tue, 21 Jan 2014 15:30:21 GMT;"
-     "experiment2=789|Tue, 21 Jan 2014 15:30:21 GMT;"
-     "CrVar1=123|Tue, 21 Jan 2014 15:30:21 GMT",
-     "experiment1=456|Tue, 21 Jan 2014 15:30:21 GMT;"
-     "experiment2=789|Tue, 21 Jan 2014 15:30:21 GMT"},
-    // One and one Variation
-    {"gcapi_brand=123|Tue, 21 Jan 2014 15:30:21 GMT;"
-     "CrVar1=3310002|Tue, 21 Jan 2014 15:30:21 GMT",
-     "gcapi_brand=123|Tue, 21 Jan 2014 15:30:21 GMT"},
-    // One and one Variation, flipped
-    {"CrVar1=3310002|Tue, 21 Jan 2014 15:30:21 GMT;"
-     "gcapi_brand=123|Tue, 21 Jan 2014 15:30:21 GMT",
-     "gcapi_brand=123|Tue, 21 Jan 2014 15:30:21 GMT"},
-    // Sandwiched
-    {"CrVar1=3310002|Tue, 21 Jan 2014 15:30:21 GMT;"
-     "gcapi_brand=123|Tue, 21 Jan 2014 15:30:21 GMT;"
-     "CrVar2=3310003|Tue, 21 Jan 2014 15:30:21 GMT;"
-     "CrVar3=3310004|Tue, 21 Jan 2014 15:30:21 GMT",
-     "gcapi_brand=123|Tue, 21 Jan 2014 15:30:21 GMT"},
-    // Only Variations
-    {"CrVar1=3310002|Tue, 21 Jan 2014 15:30:21 GMT;"
-     "CrVar2=3310003|Tue, 21 Jan 2014 15:30:21 GMT;"
-     "CrVar3=3310004|Tue, 21 Jan 2014 15:30:21 GMT",
-     ""},
-    // Empty values
-    {"gcapi_brand=123|Tue, 21 Jan 2014 15:30:21 GMT;"
-     "CrVar1=3310002|Tue, 21 Jan 2014 15:30:21 GMT",
-     "gcapi_brand=123|Tue, 21 Jan 2014 15:30:21 GMT"},
-    // Trailing semicolon
-    {"gcapi_brand=123|Tue, 21 Jan 2014 15:30:21 GMT;"
-     "CrVar1=3310002|Tue, 21 Jan 2014 15:30:21 GMT;",  // Note the semi here.
-     "gcapi_brand=123|Tue, 21 Jan 2014 15:30:21 GMT"},
-    // Semis
-    {";;;;", ""},
+      // Empty
+      {"", ""},
+      // One
+      {"gcapi_brand=123|Tue, 21 Jan 2014 15:30:21 GMT",
+       "gcapi_brand=123|Tue, 21 Jan 2014 15:30:21 GMT"},
+      // Three
+      {"CrVar1=123|Tue, 21 Jan 2014 15:30:21 GMT;"
+       "experiment1=456|Tue, 21 Jan 2014 15:30:21 GMT;"
+       "experiment2=789|Tue, 21 Jan 2014 15:30:21 GMT;"
+       "CrVar1=123|Tue, 21 Jan 2014 15:30:21 GMT",
+       "experiment1=456|Tue, 21 Jan 2014 15:30:21 GMT;"
+       "experiment2=789|Tue, 21 Jan 2014 15:30:21 GMT"},
+      // One and one Variation
+      {"gcapi_brand=123|Tue, 21 Jan 2014 15:30:21 GMT;"
+       "CrVar1=3310002|Tue, 21 Jan 2014 15:30:21 GMT",
+       "gcapi_brand=123|Tue, 21 Jan 2014 15:30:21 GMT"},
+      // One and one Variation, flipped
+      {"CrVar1=3310002|Tue, 21 Jan 2014 15:30:21 GMT;"
+       "gcapi_brand=123|Tue, 21 Jan 2014 15:30:21 GMT",
+       "gcapi_brand=123|Tue, 21 Jan 2014 15:30:21 GMT"},
+      // Sandwiched
+      {"CrVar1=3310002|Tue, 21 Jan 2014 15:30:21 GMT;"
+       "gcapi_brand=123|Tue, 21 Jan 2014 15:30:21 GMT;"
+       "CrVar2=3310003|Tue, 21 Jan 2014 15:30:21 GMT;"
+       "CrVar3=3310004|Tue, 21 Jan 2014 15:30:21 GMT",
+       "gcapi_brand=123|Tue, 21 Jan 2014 15:30:21 GMT"},
+      // Only Variations
+      {"CrVar1=3310002|Tue, 21 Jan 2014 15:30:21 GMT;"
+       "CrVar2=3310003|Tue, 21 Jan 2014 15:30:21 GMT;"
+       "CrVar3=3310004|Tue, 21 Jan 2014 15:30:21 GMT",
+       ""},
+      // Empty values
+      {"gcapi_brand=123|Tue, 21 Jan 2014 15:30:21 GMT;"
+       "CrVar1=3310002|Tue, 21 Jan 2014 15:30:21 GMT",
+       "gcapi_brand=123|Tue, 21 Jan 2014 15:30:21 GMT"},
+      // Trailing semicolon
+      {"gcapi_brand=123|Tue, 21 Jan 2014 15:30:21 GMT;"
+       "CrVar1=3310002|Tue, 21 Jan 2014 15:30:21 GMT;",  // Note the semi here.
+       "gcapi_brand=123|Tue, 21 Jan 2014 15:30:21 GMT"},
+      // Semis
+      {";;;;", ""},
+      // Three no Variation, preserving order
+      {"experiment1=456|Tue, 21 Jan 2014 15:30:21 GMT;"
+       "experiment2=789|Tue, 21 Jan 2014 15:30:21 GMT;"
+       "experiment3=123|Tue, 21 Jan 2014 15:30:21 GMT",
+       "experiment1=456|Tue, 21 Jan 2014 15:30:21 GMT;"
+       "experiment2=789|Tue, 21 Jan 2014 15:30:21 GMT;"
+       "experiment3=123|Tue, 21 Jan 2014 15:30:21 GMT"},
   };
 
   for (size_t i = 0; i < arraysize(test_cases); ++i) {
     std::string non_variation_labels = base::UTF16ToUTF8(
         ExtractNonVariationLabels(
             base::ASCIIToUTF16(test_cases[i].input_label)));
     EXPECT_EQ(test_cases[i].expected_output, non_variation_labels);
   }
 }
 
 }  // namespace variations