Skeleton of the Safe Browsing Subresource Filter.

components/subresource_filter/core/browser/subresource_filter_features_unittest.cc

+// Copyright 2016 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/subresource_filter/core/browser/subresource_filter_features.h"
+
+#include <string>
+
+#include "base/metrics/field_trial.h"
+#include "components/subresource_filter/core/browser/subresource_filter_features_test_support.h"
+#include "testing/gtest/include/gtest/gtest.h"
+
+namespace subresource_filter {
+
+TEST(SubresourceFilterFeaturesTest, ActivationState) {
+  const struct {
+    bool feature_enabled;
+    const char* activation_state_param;
+    ActivationState expected_activation_state;
+  } kTestCases[] = {{false, "", ActivationState::DISABLED},
+                    {false, "disabled", ActivationState::DISABLED},
+                    {false, "dryrun", ActivationState::DISABLED},
+                    {false, "enabled", ActivationState::DISABLED},
+                    {false, "%$ garbage !%", ActivationState::DISABLED},
+                    {true, "", ActivationState::DISABLED},
+                    {true, "disable", ActivationState::DISABLED},
+                    {true, "Disable", ActivationState::DISABLED},
+                    {true, "disabled", ActivationState::DISABLED},
+                    {true, "%$ garbage !%", ActivationState::DISABLED},
+                    {true, kActivationStateDryRun, ActivationState::DRYRUN},
+                    {true, kActivationStateEnabled, ActivationState::ENABLED},
+                    {true, "Enabled", ActivationState::ENABLED}};
+
+  for (const auto& test_case : kTestCases) {
+    SCOPED_TRACE(::testing::Message("Enabled = ") << test_case.feature_enabled);
+    SCOPED_TRACE(::testing::Message("ActivationStateParam = \"")
+                 << test_case.activation_state_param << "\"");
+
+    base::FieldTrialList field_trial_list(nullptr /* entropy_provider */);
+    testing::ScopedSubresourceFilterFeatureToggle scoped_feature_toggle(
+        test_case.feature_enabled ? base::FeatureList::OVERRIDE_ENABLE_FEATURE
+                                  : base::FeatureList::OVERRIDE_USE_DEFAULT,
+        test_case.activation_state_param);
+
+    EXPECT_EQ(test_case.expected_activation_state, GetMaximumActivationState());
+  }
+}
+
+}  // namespace subresource_filter