Add unit tests for AIDL service

[ Merged from http://go/wvgerrit/150029 ]

Test: m libwvdrmengine_hal_test -j128
Test: m libwvdrmengine_hal_test WV_UNITTESTS_BUILD_TARGET=hidl -j128
Test: adb push $(OUT)/data/nativetest/libwvdrmengine_hal_test /data/nativetest/.
Test: adb shell  LD_LIBRARY_PATH=/vendor/lib64 /data/nativetest/libwvdrmengine_hal_test

Bug: 217247987
Change-Id: Ib4f22c976b8ae6c2983cb611a958ddc3a29aebdb

libwvdrmengine/test/unit/WVCryptoFactory_hal_test.cpp

@@ -0,0 +1,50 @@
+/*
+ * Copyright 2022 Google LLC. All Rights Reserved. This file and proprietary
+ * source code may only be used and distributed under the Widevine License
+ * Agreement.
+ */
+
+#include "WVDrmFactory.h"
+#include "gtest/gtest.h"
+
+namespace wvdrm {
+namespace hardware {
+namespace drm {
+namespace widevine {
+
+using ::aidl::android::hardware::drm::Uuid;
+using ::wvdrm::hardware::drm::widevine::WVDrmFactory;
+
+const Uuid kWidevineUUID = {0xED, 0xEF, 0x8B, 0xA9, 0x79, 0xD6, 0x4A, 0xCE,
+                            0xA3, 0xC8, 0x27, 0xDC, 0xD5, 0x1D, 0x21, 0xED};
+
+const Uuid kOldNetflixWidevineUUID = {0x29, 0x70, 0x1F, 0xE4, 0x3C, 0xC7,
+                                      0x4A, 0x34, 0x8C, 0x5B, 0xAE, 0x90,
+                                      0xC7, 0x43, 0x9A, 0x47};
+
+const Uuid kUnknownUUID = {0x6A, 0x7F, 0xAA, 0xB0, 0x83, 0xC7, 0x9E, 0x20,
+                           0x08, 0xBC, 0xEF, 0x32, 0x34, 0x1A, 0x9A, 0x26};
+
+TEST(WVCryptoFactoryTest, SupportsSupportedCryptoSchemes) {
+  std::shared_ptr<WVDrmFactory> factory =
+      ::ndk::SharedRefBase::make<WVDrmFactory>();
+
+  EXPECT_TRUE(factory->isCryptoSchemeSupported(kWidevineUUID))
+      << "WVPluginFactory does not support Widevine's UUID";
+
+  EXPECT_TRUE(factory->isCryptoSchemeSupported(kOldNetflixWidevineUUID))
+      << "WVPluginFactory does not support the old Netflix Widevine UUID";
+}
+
+TEST(WVCryptoFactoryTest, DoesNotSupportUnsupportedCryptoSchemes) {
+  std::shared_ptr<WVDrmFactory> factory =
+      ::ndk::SharedRefBase::make<WVDrmFactory>();
+
+  EXPECT_FALSE(factory->isCryptoSchemeSupported(kUnknownUUID))
+      << "WVPluginFactory incorrectly claims to support an unknown UUID";
+}
+
+} // namespace widevine
+} // namespace drm
+} // namespace hardware
+} // namespace wvdrm