Author: Ronan Lamy <[email protected]>
Branch: py3.5
Changeset: r91648:b7ddeba4af0d
Date: 2017-06-25 20:25 +0100
http://bitbucket.org/pypy/pypy/changeset/b7ddeba4af0d/
Log: Add failing extra_test (inspired by CPython's deccheck.py)
diff --git a/extra_tests/test_decimal.py b/extra_tests/test_decimal.py
--- a/extra_tests/test_decimal.py
+++ b/extra_tests/test_decimal.py
@@ -1,4 +1,5 @@
import pytest
+from hypothesis import given, strategies as st
import pickle
import sys
@@ -14,6 +15,27 @@
def module(request):
yield request.param
+# Translate symbols.
+CondMap = {
+ C.Clamped: P.Clamped,
+ C.ConversionSyntax: P.ConversionSyntax,
+ C.DivisionByZero: P.DivisionByZero,
+ C.DivisionImpossible: P.InvalidOperation,
+ C.DivisionUndefined: P.DivisionUndefined,
+ C.Inexact: P.Inexact,
+ C.InvalidContext: P.InvalidContext,
+ C.InvalidOperation: P.InvalidOperation,
+ C.Overflow: P.Overflow,
+ C.Rounded: P.Rounded,
+ C.Subnormal: P.Subnormal,
+ C.Underflow: P.Underflow,
+ C.FloatOperation: P.FloatOperation,
+}
+
+def check_same_flags(flags_C, flags_P):
+ for signal in flags_C:
+ assert flags_C[signal] == flags_P[CondMap[signal]]
+
def test_C():
sys.modules["decimal"] = C
@@ -68,3 +90,22 @@
def test_compare_total_mag(module):
assert module.Decimal(1).compare_total_mag(-2) == -1
+
+@given(st.decimals(), st.decimals())
+def test_lt(d1, d2):
+ ctx_C = C.getcontext()
+ ctx_P = P.getcontext()
+ ctx_C.clear_flags()
+ ctx_P.clear_flags()
+ d1_P = P.Decimal(str(d1))
+ d2_P = P.Decimal(str(d2))
+ try:
+ res_C = d1 < d2
+ except Exception as e:
+ res_C = str(type(e))
+ try:
+ res_P = d1_P < d2_P
+ except Exception as e:
+ res_P = str(type(e))
+ assert res_C == res_P
+ check_same_flags(ctx_C.flags, ctx_P.flags)
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