added abs tests

Drew O'Meara · Drew O'Meara · commit 3e7147a5a815 · 2022-02-03T03:15:37.000-06:00
diff --git a/builtin/tests/builtin.py b/builtin/tests/builtin.py
@@ -6,6 +6,9 @@
 
 doc="abs"
 assert abs(0) == 0
+assert abs(-0) == 0
+assert abs(0.0) == 0.0
+assert abs(-0.0) == 0.0
 assert abs(10) == 10
 assert abs(-10) == 10
 assert abs(12.3) == 12.3
