Move MIN and MAX macros from PSA tests to helpers.function
diff --git a/tests/suites/helpers.function b/tests/suites/helpers.function
index da843b2..5f9f7b0 100644
--- a/tests/suites/helpers.function
+++ b/tests/suites/helpers.function
@@ -202,6 +202,23 @@
( STATIC_ASSERT_THEN_RETURN( IS_ARRAY_NOT_POINTER( array ), \
ARRAY_LENGTH_UNSAFE( array ) ) )
+/** Return the smaller of two values.
+ *
+ * \param x An integer-valued expression without side effects.
+ * \param y An integer-valued expression without side effects.
+ *
+ * \return The smaller of \p x and \p y.
+ */
+#define MIN( x, y ) ( ( x ) < ( y ) ? ( x ) : ( y ) )
+
+/** Return the larger of two values.
+ *
+ * \param x An integer-valued expression without side effects.
+ * \param y An integer-valued expression without side effects.
+ *
+ * \return The larger of \p x and \p y.
+ */
+#define MAX( x, y ) ( ( x ) > ( y ) ? ( x ) : ( y ) )
/*
* 32-bit integer manipulation macros (big endian)