diff --git a/tests/include/test/macros.h b/tests/include/test/macros.h
index ab8260b..01eaff5 100644
--- a/tests/include/test/macros.h
+++ b/tests/include/test/macros.h
@@ -196,45 +196,6 @@
         mbedtls_exit(1);                                              \
     }
 
-/** \def ARRAY_LENGTH
- * Return the number of elements of a static or stack array.
- *
- * \param array         A value of array (not pointer) type.
- *
- * \return The number of elements of the array.
- */
-/* A correct implementation of ARRAY_LENGTH, but which silently gives
- * a nonsensical result if called with a pointer rather than an array. */
-#define ARRAY_LENGTH_UNSAFE(array)            \
-    (sizeof(array) / sizeof(*(array)))
-
-#if defined(__GNUC__)
-/* Test if arg and &(arg)[0] have the same type. This is true if arg is
- * an array but not if it's a pointer. */
-#define IS_ARRAY_NOT_POINTER(arg)                                     \
-    (!__builtin_types_compatible_p(__typeof__(arg),                \
-                                   __typeof__(&(arg)[0])))
-/* A compile-time constant with the value 0. If `const_expr` is not a
- * compile-time constant with a nonzero value, cause a compile-time error. */
-#define STATIC_ASSERT_EXPR(const_expr)                                \
-    (0 && sizeof(struct { unsigned int STATIC_ASSERT : 1 - 2 * !(const_expr); }))
-
-/* Return the scalar value `value` (possibly promoted). This is a compile-time
- * constant if `value` is. `condition` must be a compile-time constant.
- * If `condition` is false, arrange to cause a compile-time error. */
-#define STATIC_ASSERT_THEN_RETURN(condition, value)   \
-    (STATIC_ASSERT_EXPR(condition) ? 0 : (value))
-
-#define ARRAY_LENGTH(array)                                           \
-    (STATIC_ASSERT_THEN_RETURN(IS_ARRAY_NOT_POINTER(array),         \
-                               ARRAY_LENGTH_UNSAFE(array)))
-
-#else
-/* If we aren't sure the compiler supports our non-standard tricks,
- * fall back to the unsafe implementation. */
-#define ARRAY_LENGTH(array) ARRAY_LENGTH_UNSAFE(array)
-#endif
-
 /** Return the smaller of two values.
  *
  * \param x         An integer-valued expression without side effects.
diff --git a/tests/src/psa_crypto_helpers.c b/tests/src/psa_crypto_helpers.c
index 77c2f89..8f58d4d 100644
--- a/tests/src/psa_crypto_helpers.c
+++ b/tests/src/psa_crypto_helpers.c
@@ -24,6 +24,7 @@
 #include <test/macros.h>
 #include <psa_crypto_slot_management.h>
 #include <test/psa_crypto_helpers.h>
+#include "common.h"
 
 #if defined(MBEDTLS_PSA_CRYPTO_C)