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-rw-r--r--test/test_helpers.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/test/test_helpers.h b/test/test_helpers.h
index 3dfe08fdbe..7a61da82ea 100644
--- a/test/test_helpers.h
+++ b/test/test_helpers.h
@@ -7,5 +7,9 @@
#include <cmocka.h>
#include <stdio.h>
+#include <math.h>
+#include <float.h>
+
+#define assert_double_equal(a, b) assert_true(fabs(a - b) <= DBL_EPSILON)
#endif