Add cancel inference tests

These tests are run with a special custom firmware

Change-Id: I0dfcae1fbaa1287d4b52fd8f6c802bebb5248d3b
diff --git a/tests/test_assertions.hpp b/tests/test_assertions.hpp
new file mode 100644
index 0000000..f90325f
--- /dev/null
+++ b/tests/test_assertions.hpp
@@ -0,0 +1,62 @@
+/*
+ * Copyright (c) 2022 Arm Limited.
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * 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
+ *
+ * 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.
+ */
+
+#ifndef TEST_ASSERTIONS_H
+#define TEST_ASSERTIONS_H
+
+#include <stddef.h>
+#include <stdio.h>
+
+namespace {
+template <typename... Args>
+std::string string_format(std::ostringstream &stringStream) {
+    return stringStream.str();
+}
+
+template <typename T, typename... Args>
+std::string string_format(std::ostringstream &stringStream, T t, Args... args) {
+    stringStream << t;
+    return string_format(stringStream, args...);
+}
+
+class TestFailureException : public std::exception {
+public:
+    template <typename... Args>
+    TestFailureException(const char *msg, Args... args) {
+        std::ostringstream stringStream;
+        this->msg = string_format(stringStream, msg, args...);
+    }
+    const char *what() const throw() {
+        return msg.c_str();
+    }
+
+private:
+    std::string msg;
+};
+} // namespace
+
+#define TEST_ASSERT(v)                                                                             \
+    do {                                                                                           \
+        if (!(v)) {                                                                                \
+            throw TestFailureException(__FILE__, ":", __LINE__, " ERROR test failed: '", #v, "'"); \
+        }                                                                                          \
+    } while (0)
+
+#define FAIL() TEST_ASSERT(false)
+
+#endif