1 files changed, 136 insertions, 0 deletions
diff --git a/sources/shiboken6/tests/samplebinding/implicitconv_numerical_test.py b/sources/shiboken6/tests/samplebinding/implicitconv_numerical_test.py
new file mode 100644
index 000000000..081666281
--- /dev/null
+++ b/sources/shiboken6/tests/samplebinding/implicitconv_numerical_test.py
@@ -0,0 +1,136 @@
+#!/usr/bin/env python
+# Copyright (C) 2022 The Qt Company Ltd.
+# SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only WITH Qt-GPL-exception-1.0
+
+'''Test case for inplicit converting C++ numeric types.'''
+
+import os
+import sys
+import unittest
+
+from pathlib import Path
+sys.path.append(os.fspath(Path(__file__).resolve().parents[1]))
+from shiboken_paths import init_paths
+init_paths()
+import sys
+import sample
+
+# Hardcode the limits of the underlying C-types depending on architecture and memory
+# model (taking MSVC using LLP64 into account).
+cIntMin = -2147483648
+cIntMax = 2147483647
+cLongMin = cIntMin
+cLongMax = cIntMax
+maxRepresentableInt = sys.maxsize
+is64bitArchitecture = maxRepresentableInt > 2**32
+if is64bitArchitecture and sys.platform != 'win32':
+    cLongMin = -9223372036854775808
+    cLongMax = 9223372036854775807
+
+
+class NumericTester(unittest.TestCase):
+    '''Helper class for numeric comparison testing'''
+
+    def assertRaises(self, *args, **kwds):
+        if not hasattr(sys, "pypy_version_info"):
+            # PYSIDE-535: PyPy complains "Fatal RPython error: NotImplementedError"
+            return super().assertRaises(*args, **kwds)
+
+    def check_value(self, source, expected, callback, desired_type=None):
+        result = callback(source)
+        self.assertEqual(result, expected)
+
+        if desired_type:
+            self.assertEqual(type(result), desired_type)
+
+
+class FloatImplicitConvert(NumericTester):
+    '''Test case for implicit converting C++ numeric types.'''
+
+    def testFloatAsInt(self):
+        '''Float as Int'''
+        self.check_value(3.14, 3, sample.acceptInt, int)
+        self.assertRaises(OverflowError, sample.acceptInt, cIntMax + 400)
+
+    def testFloatAsLong(self):
+        '''Float as Long'''
+        #C++ longs are python ints for us
+        self.check_value(3.14, 3, sample.acceptLong, int)
+        self.assertRaises(OverflowError, sample.acceptLong, cLongMax + 400)
+
+    def testFloatAsUInt(self):
+        '''Float as unsigned Int'''
+        self.check_value(3.14, 3, sample.acceptUInt, int)
+        self.assertRaises(OverflowError, sample.acceptUInt, -3.14)
+
+    def testFloatAsULong(self):
+        '''Float as unsigned Long'''
+        #FIXME Breaking with SystemError "bad argument to internal function"
+        self.check_value(3.14, 3, sample.acceptULong, int)
+        self.assertRaises(OverflowError, sample.acceptULong, -3.14)
+
+    def testFloatAsDouble(self):
+        '''Float as double'''
+        self.check_value(3.14, 3.14, sample.acceptDouble, float)
+
+
+class IntImplicitConvert(NumericTester):
+    '''Test case for implicit converting C++ numeric types.'''
+
+    def testIntAsInt(self):
+        '''Int as Int'''
+        self.check_value(3, 3, sample.acceptInt, int)
+
+    def testIntAsLong(self):
+        '''Int as Long'''
+        self.check_value(3, 3, sample.acceptLong, int)
+
+        # cLongMax goes here as CPython implements int as a C long
+        self.check_value(cLongMax, cLongMax, sample.acceptLong, int)
+        self.check_value(cLongMin, cLongMin, sample.acceptLong, int)
+
+    def testIntAsUInt(self):
+        '''Int as unsigned Int'''
+        self.check_value(3, 3, sample.acceptUInt, int)
+        self.assertRaises(OverflowError, sample.acceptUInt, -3)
+
+    def testIntAsULong(self):
+        '''Int as unsigned Long'''
+        self.check_value(3, 3, sample.acceptULong, int)
+        self.assertRaises(OverflowError, sample.acceptULong, -3)
+
+    def testFloatAsDouble(self):
+        '''Float as double'''
+        self.check_value(3.14, 3.14, sample.acceptDouble, float)
+
+
+class LongImplicitConvert(NumericTester):
+    '''Test case for implicit converting C++ numeric types.'''
+
+    def testLongAsInt(self):
+        '''Long as Int'''
+        self.check_value(24224, 24224, sample.acceptInt, int)
+        self.assertRaises(OverflowError, sample.acceptInt, cIntMax + 20)
+
+    def testLongAsLong(self):
+        '''Long as Long'''
+        self.check_value(2405, 2405, sample.acceptLong, int)
+        self.assertRaises(OverflowError, sample.acceptLong, cLongMax + 20)
+
+    def testLongAsUInt(self):
+        '''Long as unsigned Int'''
+        self.check_value(260, 260, sample.acceptUInt, int)
+        self.assertRaises(OverflowError, sample.acceptUInt, -42)
+
+    def testLongAsULong(self):
+        '''Long as unsigned Long'''
+        self.check_value(128, 128, sample.acceptULong, int)
+        self.assertRaises(OverflowError, sample.acceptULong, -334)
+
+    def testLongAsDouble(self):
+        '''Float as double'''
+        self.check_value(42, 42, sample.acceptDouble, float)
+
+
+if __name__ == '__main__':
+    unittest.main()