Add VTS tests for Context Hub HAL 1.1

Extract some common functionality and add a new test for the newly-added
method in HAL v1.1.

Bug: 135951924
Test: atest VtsHalContexthubV1_0TargetTest \
            VtsHalContexthubV1_1TargetTest
Change-Id: I1cd335d4972bc3242245b2379a7cfa42d1c683a6
diff --git a/contexthub/common/vts/ContexthubHidlTestBase.h b/contexthub/common/vts/ContexthubHidlTestBase.h
new file mode 100644
index 0000000..ee5b7d3
--- /dev/null
+++ b/contexthub/common/vts/ContexthubHidlTestBase.h
@@ -0,0 +1,53 @@
+/*
+ * Copyright (C) 2020 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+#pragma once
+
+#include <android/hardware/contexthub/1.0/IContexthubCallback.h>
+#include <gtest/gtest.h>
+
+#include <string>
+#include <tuple>
+
+namespace android {
+namespace hardware {
+namespace contexthub {
+namespace vts_utils {
+
+// Base fixture for Context Hub HAL tests. Parameterized by service name and hub ID.
+template <class IContexthubVersion>
+class ContexthubHidlTestBase
+    : public ::testing::TestWithParam<std::tuple<std::string, std::string>> {
+  public:
+    virtual void SetUp() override { fetchHubApi(); }
+
+    void fetchHubApi() {
+        hubApi = IContexthubVersion::getService(std::get<0>(GetParam()));
+        ASSERT_NE(hubApi, nullptr);
+    }
+
+    uint32_t getHubId() { return std::stoi(std::get<1>(GetParam())); }
+
+    V1_0::Result registerCallback(sp<V1_0::IContexthubCallback> cb) {
+        return hubApi->registerCallback(getHubId(), cb);
+    }
+
+    sp<IContexthubVersion> hubApi;
+};
+
+}  // namespace vts_utils
+}  // namespace contexthub
+}  // namespace hardware
+}  // namespace android