Add boilerplate code for vulkan unit tests

Vulkan unit tests require a basic vulkan application to run. This adds
the boilerplate code for a simple vulkan application.

Bug: 388189326
Flag: EXEMPT test
Test: atest libvulkan_test
Change-Id: I59e2240b4c34b39af9b7f5927cb23f0926e4cf8a

Author: tomnomgoogleuk

vulkan/tests/Android.bp

@@ -0,0 +1,56 @@
+package {
+    // See: http://go/android-license-faq
+    // A large-scale-change added 'default_applicable_licenses' to import
+    // all of the 'license_kinds' from "frameworks_native_license"
+    // to get the below license kinds:
+    //   SPDX-license-identifier-Apache-2.0
+    default_applicable_licenses: ["frameworks_native_license"],
+}
+
+cc_test {
+    name: "libvulkan_test",
+    test_suites: ["general-tests"],
+
+    srcs: [
+        "libvulkan_test.cpp",
+    ],
+
+    strip: {
+        none: true,
+    },
+
+    cflags: [
+        "-DVK_USE_PLATFORM_ANDROID_KHR",
+        "-Wall",
+        "-Werror",
+    ],
+
+    header_libs: [
+        "hwvulkan_headers",
+        "vulkan_headers",
+    ],
+
+    cppflags: [
+        "-Wno-c++98-compat-pedantic",
+        "-Wno-c99-extensions",
+        "-Wno-exit-time-destructors",
+        "-Wno-float-equal",
+        "-Wno-global-constructors",
+        "-Wno-zero-length-array",
+    ],
+
+    shared_libs: [
+        "libbase",
+        "libgraphicsenv",
+        "liblog",
+        "libmediandk",
+        "libvulkan",
+    ],
+
+    static_libs: [
+        "libgmock",
+        "libgtest",
+        "liblog",
+    ],
+
+}

vulkan/tests/README.md

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+#libvulkan_test
+
+This binary contains the unit tests for testing libvulkan (The Vulkan Loader).
+
+These tests rely on the underlying GPU driver to be able to successfully create a valid
+swapchain. These tests are design to run on an Android emulator to give us a consistent GPU
+driver to test against. YMMV when running this on a physical device with an arbitrary GPU
+driver.
+
+To run these tests run:
+```
+atest libvulkan_test
+```
+
+If using an acloud device the full command list for the root of a freshly cloned repo would be:
+```
+source build/envsetup.sh
+lunch aosp_cf_x86_64_phone-trunk_staging-eng
+m
+acloud create --local-image
+atest libvulkan_test
+```
+
+