`id()` for `str` stays the same after `* 1` by sobolevn · Pull Request #2864 · RustPython/RustPython

Expand Up @@ -632,7 +632,7 @@ def test_removeprefix(): assert s_uc.removeprefix('😱') == s_ref_uc[1:] assert s_uc.removeprefix('😱fo') == s_ref_uc[3:] assert s_uc.removeprefix('😱foo') == s_ref_uc[4:]
assert s_uc.removeprefix('🖖') == s_ref_uc assert s_uc.removeprefix('foo') == s_ref_uc assert s_uc.removeprefix(' ') == s_ref_uc Expand Down Expand Up @@ -676,7 +676,7 @@ def test_removesuffix(): assert s_uc.removesuffix('🖖') == s_ref_uc[:-1] assert s_uc.removesuffix('oo🖖') == s_ref_uc[:-3] assert s_uc.removesuffix('foo🖖') == s_ref_uc[:-4]
assert s_uc.removesuffix('😱') == s_ref_uc assert s_uc.removesuffix('foo') == s_ref_uc assert s_uc.removesuffix(' ') == s_ref_uc Expand All @@ -702,3 +702,28 @@ def test_removesuffix_types(): skip_if_unsupported(3,9,test_removeprefix_types) skip_if_unsupported(3,9,test_removesuffix) skip_if_unsupported(3,9,test_removesuffix_types)

# Regression to # https://github.com/RustPython/RustPython/issues/2840
a = 'abc123()'
assert id(a) == id(a) assert id(a) != id(a * -1) assert id(a) != id(a * 0) assert id(a) == id(a * 1) # only cases assert id(a) == id(1 * a) # when `id` stays the same assert id(a) != id(a * 2)

class MyString(str): pass
b = MyString('0123abc*&') assert id(b) == id(b) assert id(b) != id(b * -1) assert id(b) != id(b * 0) assert id(b) != id(b * 1) assert id(b) != id(1 * b) assert id(b) != id(b * 2)