IVGCVSW-3561 Test the DynamicBackend class

 * Added unit test for valid dynamic backends
 * Added unit tests for various cases of invalid dynamic backends
   (invalid handle, malformed backends, incompatible version, etc.)

Signed-off-by: Matteo Martincigh <matteo.martincigh@arm.com>
Change-Id: I4c3b33702bb0faac2bbebe224f69908639b4fc54

1 files changed, 95 insertions, 0 deletions

diff --git a/src/backends/backendsCommon/test/TestDynamicBackend.cpp b/src/backends/backendsCommon/test/TestDynamicBackend.cpp
new file mode 100644
index 0000000000..7fd996fae8
--- /dev/null
+++ b/src/backends/backendsCommon/test/TestDynamicBackend.cpp
@@ -0,0 +1,95 @@
+//
+// Copyright © 2017 Arm Ltd. All rights reserved.
+// SPDX-License-Identifier: MIT
+//
+
+#include "TestDynamicBackend.hpp"
+
+#include <backendsCommon/IBackendInternal.hpp>
+
+constexpr const char* TestDynamicBackendId()
+{
+#if defined(VALID_TEST_DYNAMIC_BACKEND)
+
+    return "ValidTestDynamicBackend";
+
+#else
+
+    return "InvalidTestDynamicBackend";
+
+#endif
+}
+
+class TestDynamicBackend : public armnn::IBackendInternal
+{
+public:
+    TestDynamicBackend()
+        : m_BackendId(TestDynamicBackendId())
+    {}
+
+    const armnn::BackendId& GetId() const override
+    {
+        return m_BackendId;
+    }
+    IWorkloadFactoryPtr CreateWorkloadFactory(const IMemoryManagerSharedPtr& memoryManager) const override
+    {
+        return IWorkloadFactoryPtr{};
+    }
+    ILayerSupportSharedPtr GetLayerSupport() const override
+    {
+        return ILayerSupportSharedPtr{};
+    }
+
+private:
+    armnn::BackendId m_BackendId;
+};
+
+const char* GetBackendId()
+{
+#if defined(INVALID_TEST_DYNAMIC_BACKEND_5)
+
+    // Return an invalid backend id
+    return nullptr;
+
+#else
+
+    // Return a valid backend id
+    return TestDynamicBackendId();
+
+#endif
+}
+
+void GetVersion(uint32_t* outMajor, uint32_t* outMinor)
+{
+    if (!outMajor || !outMinor)
+    {
+        return;
+    }
+
+#if defined(INVALID_TEST_DYNAMIC_BACKEND_7)
+
+    *outMajor = 0;
+    *outMinor = 7;
+
+#else
+
+    *outMajor = 1;
+    *outMinor = 0;
+
+#endif
+}
+
+void* BackendFactory()
+{
+#if defined(INVALID_TEST_DYNAMIC_BACKEND_6)
+
+    // Return an invalid backend instance
+    return nullptr;
+
+#else
+
+    // Return a non-null backend instance
+    return new TestDynamicBackend();
+
+#endif
+}