Added utility functions for tests

Author: Chaluvadi

tests/test_utilities.py

@@ -0,0 +1,16 @@
+import pytest
+
+import arrayfire_wrapper.lib as wrapper
+
+from arrayfire_wrapper.dtypes import f64, c32, c64, Dtype
+
+def is_cmplx_type(dtype: Dtype) -> bool:
+    """Checks to see if the specified type is a complex type"""
+    return dtype == c32 or dtype == c64
+
+def is_system_supported(dtype: Dtype) -> bool:
+    """Checks to see if the specified type is supported by the current system"""
+    if dtype in [f64, c64] and not wrapper.get_dbl_support():
+        return False
+
+    return True