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// 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/metrics/field_trial.h"
#include "base/string16.h"
#include "chrome/common/metrics/entropy_provider.h"
#include "testing/gtest/include/gtest/gtest.h"
class OmniboxFieldTrialTest : public testing::Test {
public:
OmniboxFieldTrialTest() {}
static void SetUpTestCase() {
ResetFieldTrialList();
}
static void TearDownTestCase() {
delete field_trial_list_;
field_trial_list_ = NULL;
}
static void ResetFieldTrialList() {
// It's important to delete the old pointer first which sets
// FieldTrialList::global_ to NULL.
if (field_trial_list_)
delete field_trial_list_;
field_trial_list_ = new base::FieldTrialList(
new metrics::SHA1EntropyProvider("foo"));
OmniboxFieldTrial::ActivateDynamicTrials();
}
// Creates and activates a field trial.
static base::FieldTrial* CreateTestTrial(const std::string& name,
const std::string& group_name) {
base::FieldTrial* trial = base::FieldTrialList::CreateFieldTrial(
name, group_name);
trial->group();
return trial;
}
private:
// Needed for Activate{Static/Dynamic}Trials().
static base::FieldTrialList* field_trial_list_;
DISALLOW_COPY_AND_ASSIGN(OmniboxFieldTrialTest);
};
// static
base::FieldTrialList* OmniboxFieldTrialTest::field_trial_list_ = NULL;
// Test if GetDisabledProviderTypes() properly parses various field trial
// group names.
TEST_F(OmniboxFieldTrialTest, GetDisabledProviderTypes) {
EXPECT_EQ(0, OmniboxFieldTrial::GetDisabledProviderTypes());
{
SCOPED_TRACE("Invalid groups");
CreateTestTrial("AutocompleteDynamicTrial_0", "DisabledProviders_");
EXPECT_EQ(0, OmniboxFieldTrial::GetDisabledProviderTypes());
ResetFieldTrialList();
CreateTestTrial("AutocompleteDynamicTrial_1", "DisabledProviders_XXX");
EXPECT_EQ(0, OmniboxFieldTrial::GetDisabledProviderTypes());
ResetFieldTrialList();
CreateTestTrial("AutocompleteDynamicTrial_1", "DisabledProviders_12abc");
EXPECT_EQ(0, OmniboxFieldTrial::GetDisabledProviderTypes());
}
{
SCOPED_TRACE("Valid group name, unsupported trial name.");
ResetFieldTrialList();
CreateTestTrial("UnsupportedTrialName", "DisabledProviders_20");
EXPECT_EQ(0, OmniboxFieldTrial::GetDisabledProviderTypes());
}
{
SCOPED_TRACE("Valid field and group name.");
ResetFieldTrialList();
CreateTestTrial("AutocompleteDynamicTrial_2", "DisabledProviders_3");
EXPECT_EQ(3, OmniboxFieldTrial::GetDisabledProviderTypes());
// Two groups should be OR-ed together.
CreateTestTrial("AutocompleteDynamicTrial_3", "DisabledProviders_6");
EXPECT_EQ(7, OmniboxFieldTrial::GetDisabledProviderTypes());
}
}
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