Changeset 15476 for main/waeup.kofa/trunk/src/waeup/kofa/utils/tests/test_utils.py

Timestamp:

27 Jun 2019, 06:07:52 (5 years ago)

Author:

Henrik Bettermann

Message:

Use decimal.Decimal to counteract Python floating point limitation.

File:

• main/waeup.kofa/trunk/src/waeup/kofa/utils/tests/test_utils.py (modified) (1 diff)

main/waeup.kofa/trunk/src/waeup/kofa/utils/tests/test_utils.py

@@ -123 +123 @@
         utils.SYSTEM_MAX_LOAD['virt-mem'] = -(sys.maxint)  # negative int
         assert utils.expensive_actions_allowed() == False
+
+    def test_format_float(self):
+        format_float= KofaUtils().format_float
+        # This is the floating point problem ...
+        self.assertEqual(4.6*100, 459.99999999999994)
+        # ... which is solved in format_float
+        self.assertEqual(format_float(4.6 ,1), '4.6')
+        self.assertEqual(format_float(4.6 ,2), '4.60')
+        self.assertEqual(format_float(4.6 ,3), '4.600')
+        self.assertEqual(format_float(4.6 ,4), '4.6000')