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gh-71339: Use assertIsSubclass() and assertNotIsSubclass() in test_decimal#128827

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Merged
serhiy-storchaka merged 1 commit into from
Jan 20, 2025
Merged

gh-71339: Use assertIsSubclass() and assertNotIsSubclass() in test_decimal #128827

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58 changes: 29 additions & 29 deletions Lib/test/test_decimal.py
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Original file line numberDiff line numberDiff line change
Expand Up@@ -752,7 +752,7 @@ def test_explicit_context_create_decimal(self):
for v in [-2**63-1, -2**63, -2**31-1, -2**31, 0,
2**31-1, 2**31, 2**63-1, 2**63]:
d = nc.create_decimal(v)
self.assertTrue(isinstance(d, Decimal))
self.assertIsInstance(d, Decimal)
self.assertEqual(int(d), v)

nc.prec = 3
Expand DownExpand Up@@ -2590,8 +2590,8 @@ class PythonAPItests:
def test_abc(self):
Decimal = self.decimal.Decimal

self.assertTrue(issubclass(Decimal, numbers.Number))
self.assertFalse(issubclass(Decimal, numbers.Real))
self.assertIsSubclass(Decimal, numbers.Number)
self.assertNotIsSubclass(Decimal, numbers.Real)
self.assertIsInstance(Decimal(0), numbers.Number)
self.assertNotIsInstance(Decimal(0), numbers.Real)

Expand DownExpand Up@@ -2690,7 +2690,7 @@ class MyDecimal(Decimal):
def __init__(self, _):
self.x = 'y'

self.assertTrue(issubclass(MyDecimal, Decimal))
self.assertIsSubclass(MyDecimal, Decimal)

r = MyDecimal.from_float(0.1)
self.assertEqual(type(r), MyDecimal)
Expand DownExpand Up@@ -2908,31 +2908,31 @@ def test_exception_hierarchy(self):
Rounded = decimal.Rounded
Clamped = decimal.Clamped

self.assertTrue(issubclass(DecimalException, ArithmeticError))

self.assertTrue(issubclass(InvalidOperation, DecimalException))
self.assertTrue(issubclass(FloatOperation, DecimalException))
self.assertTrue(issubclass(FloatOperation, TypeError))
self.assertTrue(issubclass(DivisionByZero, DecimalException))
self.assertTrue(issubclass(DivisionByZero, ZeroDivisionError))
self.assertTrue(issubclass(Overflow, Rounded))
self.assertTrue(issubclass(Overflow, Inexact))
self.assertTrue(issubclass(Overflow, DecimalException))
self.assertTrue(issubclass(Underflow, Inexact))
self.assertTrue(issubclass(Underflow, Rounded))
self.assertTrue(issubclass(Underflow, Subnormal))
self.assertTrue(issubclass(Underflow, DecimalException))

self.assertTrue(issubclass(Subnormal, DecimalException))
self.assertTrue(issubclass(Inexact, DecimalException))
self.assertTrue(issubclass(Rounded, DecimalException))
self.assertTrue(issubclass(Clamped, DecimalException))

self.assertTrue(issubclass(decimal.ConversionSyntax, InvalidOperation))
self.assertTrue(issubclass(decimal.DivisionImpossible, InvalidOperation))
self.assertTrue(issubclass(decimal.DivisionUndefined, InvalidOperation))
self.assertTrue(issubclass(decimal.DivisionUndefined, ZeroDivisionError))
self.assertTrue(issubclass(decimal.InvalidContext, InvalidOperation))
self.assertIsSubclass(DecimalException, ArithmeticError)

self.assertIsSubclass(InvalidOperation, DecimalException)
self.assertIsSubclass(FloatOperation, DecimalException)
self.assertIsSubclass(FloatOperation, TypeError)
self.assertIsSubclass(DivisionByZero, DecimalException)
self.assertIsSubclass(DivisionByZero, ZeroDivisionError)
self.assertIsSubclass(Overflow, Rounded)
self.assertIsSubclass(Overflow, Inexact)
self.assertIsSubclass(Overflow, DecimalException)
self.assertIsSubclass(Underflow, Inexact)
self.assertIsSubclass(Underflow, Rounded)
self.assertIsSubclass(Underflow, Subnormal)
self.assertIsSubclass(Underflow, DecimalException)

self.assertIsSubclass(Subnormal, DecimalException)
self.assertIsSubclass(Inexact, DecimalException)
self.assertIsSubclass(Rounded, DecimalException)
self.assertIsSubclass(Clamped, DecimalException)

self.assertIsSubclass(decimal.ConversionSyntax, InvalidOperation)
self.assertIsSubclass(decimal.DivisionImpossible, InvalidOperation)
self.assertIsSubclass(decimal.DivisionUndefined, InvalidOperation)
self.assertIsSubclass(decimal.DivisionUndefined, ZeroDivisionError)
self.assertIsSubclass(decimal.InvalidContext, InvalidOperation)

@requires_cdecimal
class CPythonAPItests(PythonAPItests, unittest.TestCase):
Expand Down