Issue #19572: More silently skipped tests explicitly skipped.
diff --git a/Lib/test/test_cmath.py b/Lib/test/test_cmath.py
index 8b5c4bf..5d10261 100644
--- a/Lib/test/test_cmath.py
+++ b/Lib/test/test_cmath.py
@@ -282,7 +282,7 @@
 
     def test_specific_values(self):
         if not float.__getformat__("double").startswith("IEEE"):
-            return
+            self.skipTest('needs IEEE double')
 
         def rect_complex(z):
             """Wrapped version of rect that accepts a complex number instead of