Adds EngineGeolocationFeature for Blimp Geolocation project.

blimp/engine/feature/geolocation/blimp_location_provider_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 "blimp/engine/feature/geolocation/blimp_location_provider.h"
+
+#include <memory>
+#include <utility>
+
+#include "base/bind.h"
+#include "base/memory/ptr_util.h"
+#include "blimp/engine/feature/geolocation/mock_blimp_location_provider_delegate.h"
+#include "testing/gmock/include/gmock/gmock.h"
+#include "testing/gtest/include/gtest/gtest.h"
+
+using testing::_;
+using testing::SaveArg;
+
+namespace blimp {
+namespace engine {
+
+class BlimpLocationProviderTest : public testing::Test {
+ public:
+  BlimpLocationProviderTest()
+      : mock_callback_(base::Bind(&BlimpLocationProviderTest::OnLocationUpdate,
+                                  base::Unretained(this))),
+        delegate_(base::WrapUnique(new MockBlimpLocationProviderDelegate)),
+        location_provider_(new BlimpLocationProvider(delegate_->GetWeakPtr())) {
+  }
+
+  void SetUp() override {}
+
+  MOCK_METHOD2(OnLocationUpdate,
+               void(const content::LocationProvider* provider,
+                    const content::Geoposition& geoposition));
+
+ protected:
+  content::LocationProvider::LocationProviderUpdateCallback mock_callback_;
+  std::unique_ptr<MockBlimpLocationProviderDelegate> delegate_;
+  std::unique_ptr<BlimpLocationProvider> location_provider_;
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(BlimpLocationProviderTest);
+};
+
+TEST_F(BlimpLocationProviderTest, StartProviderRunsCorrectly) {
+  EXPECT_CALL(
+      *delegate_,
+      RequestAccuracy(GeolocationSetInterestLevelMessage::HIGH_ACCURACY))
+      .Times(1);
+  EXPECT_CALL(*delegate_,
+              RequestAccuracy(GeolocationSetInterestLevelMessage::LOW_ACCURACY))
+      .Times(1);
+
+  // Occurs during tear down.

[Wez, 2016/07/22 01:18:58]

nit: Suggest a little more clarifying wording, e.g:

// BlimpLocationProvider implicitly stops on teardown, if it was started.

[CJ, 2016/07/22 20:03:30]

Done.

+  EXPECT_CALL(*delegate_,
+              RequestAccuracy(GeolocationSetInterestLevelMessage::NO_INTEREST))
+      .Times(1);
+
+  EXPECT_TRUE(location_provider_->StartProvider(true));
+  EXPECT_TRUE(location_provider_->StartProvider(false));
+}
+
+TEST_F(BlimpLocationProviderTest, StartProviderHandlesNullDelegate) {
+  EXPECT_CALL(*delegate_, RequestAccuracy(_)).Times(0);
+  delegate_.reset();

[Kevin M, 2016/07/21 17:37:06]

add newline to visually separate execution setup and code execution blocks, here
and elsewhere in this test file

[CJ, 2016/07/21 22:04:46]

Done.

+  EXPECT_FALSE(location_provider_->StartProvider(true));
+  EXPECT_FALSE(location_provider_->StartProvider(false));
+}
+
+TEST_F(BlimpLocationProviderTest, StopProviderRunsCorrectly) {
+  EXPECT_CALL(
+      *delegate_,
+      RequestAccuracy(GeolocationSetInterestLevelMessage::HIGH_ACCURACY))
+      .Times(1);
+  EXPECT_CALL(*delegate_,
+              RequestAccuracy(GeolocationSetInterestLevelMessage::NO_INTEREST))
+      .Times(1);
+  location_provider_->StartProvider(true);
+

[Kevin M, 2016/07/21 17:37:06]

remove newline

[CJ, 2016/07/21 22:04:46]

Done.

+  location_provider_->StopProvider();
+}
+
+TEST_F(BlimpLocationProviderTest, StopProviderHandlesNullDelegate) {
+  EXPECT_CALL(
+      *delegate_,
+      RequestAccuracy(GeolocationSetInterestLevelMessage::HIGH_ACCURACY))
+      .Times(1);
+  location_provider_->StartProvider(true);
+  delegate_.reset();
+  location_provider_->StopProvider();
+}
+
+TEST_F(BlimpLocationProviderTest, LocationProviderDeleted) {
+  EXPECT_CALL(
+      *delegate_,
+      RequestAccuracy(GeolocationSetInterestLevelMessage::HIGH_ACCURACY))
+      .Times(1);
+  EXPECT_CALL(*delegate_,
+              RequestAccuracy(GeolocationSetInterestLevelMessage::NO_INTEREST))
+      .Times(1);
+  location_provider_->StartProvider(true);
+  location_provider_.reset();
+}
+
+TEST_F(BlimpLocationProviderTest, RequestRefreshRunsCorrectly) {
+  EXPECT_CALL(*delegate_, RequestRefresh()).Times(1);
+  location_provider_->StartProvider(true);
+  location_provider_->RequestRefresh();
+}
+
+TEST_F(BlimpLocationProviderTest, RequestRefreshHandlesNullDelegate) {
+  EXPECT_CALL(*delegate_, RequestRefresh()).Times(0);
+  location_provider_->StartProvider(true);
+  delegate_.reset();
+  location_provider_->RequestRefresh();
+}
+
+TEST_F(BlimpLocationProviderTest, OnPermissionGrantedCallsRefresh) {
+  EXPECT_CALL(*delegate_, RequestRefresh()).Times(1);
+  location_provider_->StartProvider(true);
+  location_provider_->OnPermissionGranted();
+}
+
+TEST_F(BlimpLocationProviderTest, OnPermissionGrantedHandlesNullDelegate) {
+  EXPECT_CALL(*delegate_, RequestRefresh()).Times(0);
+  location_provider_->StartProvider(true);
+  delegate_.reset();
+  location_provider_->OnPermissionGranted();
+}
+
+TEST_F(BlimpLocationProviderTest, SetUpdateCallbackPropagatesCallback) {
+  base::Callback<void(const content::Geoposition&)> callback;
+  EXPECT_CALL(*delegate_, SetUpdateCallback(_)).WillOnce(SaveArg<0>(&callback));
+  location_provider_->SetUpdateCallback(mock_callback_);
+
+  EXPECT_CALL(*this, OnLocationUpdate(location_provider_.get(), _)).Times(1);
+  content::Geoposition position;
+  callback.Run(position);
+}
+
+TEST_F(BlimpLocationProviderTest, SetUpdateCallbackHandlesNullDelegate) {
+  EXPECT_CALL(*delegate_, SetUpdateCallback(_)).Times(0);
+  delegate_.reset();
+  location_provider_->SetUpdateCallback(mock_callback_);
+}
+
+}  // namespace engine
+}  // namespace blimp