| // 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 |
| {";;;;", ""}, |
| }; |
| |
| 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 |
