8000 added unit tests for now allowable metavar characters including nearl… · python/cpython@fcf7d42 · GitHub
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Franklin, SamuelFranklin, Samuel
Franklin, Samuel
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Franklin, Samuel
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added unit tests for now allowable metavar characters including nearly all Unicode whitespace characters. Thank you Ashwin Ramaswami for the recommendation.
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‎Lib/test/test_argparse.py

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@@ -5224,6 +5224,191 @@ def test_nargs_3_metavar_length3(self):
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self.do_test_no_exception(nargs=3, metavar=("1", "2", "3"))
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class TestAddArgumentMetavarWrapNoException(TestCase):
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"""Check that certain special character wrap with no exceptions
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Based off TestAddArgumentMetavar"""
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def do_test_no_exception(self, metavar):
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parser = argparse.ArgumentParser(prog='PROG' * 19) # force wrapping
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parser.add_argument("--foo", metavar=metavar)
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def test_metavar_nil(self):
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self.do_test_no_exception(metavar='')
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def test_metavar_space(self):
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self.do_test_no_exception(metavar=' ')
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def test_metavar_Line_Feed(self):
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self.do_test_no_exception(metavar='\n')
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def test_metavar_Tab(self):
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self.do_test_no_exception(metavar='\t')
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def test_metavar_Carriage_Return(self):
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self.do_test_no_exception(metavar='\r')
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def test_metavar_Carriage_Return_and_Line_Feed(self):
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self.do_test_no_exception(metavar='\r\n')
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# The rest would be unlikely in practice but should not fail
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def test_metavar_vLine_Tabulation(self):
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self.do_test_no_exception(metavar='\v')
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def test_metavar_x0b_Line_Tabulation(self):
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self.do_test_no_exception(metavar='\x0b')
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def test_metavar_f_Form_Feed(self):
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self.do_test_no_exception(metavar='\f')
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def test_metavar_x0c_Form_Feed(self):
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self.do_test_no_exception(metavar='\x0c')
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def test_metavar_File_Separator(self):
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self.do_test_no_exception(metavar='\x1c')
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def test_metavar_Group_Separator(self):
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self.do_test_no_exception(metavar='\x1d')
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def test_metavar_Record_Separator(self):
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self.do_test_no_exception(metavar='\x1e')
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def test_metavar_C1_Control_Code(self):
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self.do_test_no_exception(metavar='\x85')
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def test_metavar_Line_Separator(self):
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self.do_test_no_exception(metavar='\u2028')
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def test_metavar_Paragraph_Separator(self):
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self.do_test_no_exception(metavar='\u2029')
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def test_metavar_backslash(self):
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self.do_test_no_exception(metavar='\\')
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def test_metavar_single_quote(self):
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self.do_test_no_exception(metavar='\'')
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def test_metavar_double_quote(self):
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self.do_test_no_exception(metavar='\"')
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def test_metavar_ASCII_bell(self):
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self.do_test_no_exception(metavar='\a')
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def test_metavar_ASCII_backspace(self):
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self.do_test_no_exception(metavar='\b')
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# Unicode whitespaces per wikipedia.org/wiki/Whitespace_character
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def test_metavar_unicode_horizontal_tab(self):
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self.do_test_no_exception(metavar='\u0009')
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def test_metavar_unicode_line_feed(self):
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self.do_test_no_exception(metavar='\u000A')
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def test_metavar_unicode_vertical_tab(self):
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self.do_test_no_exception(metavar='\u000B')
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def test_metavar_unicode_form_feed(self):
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self.do_test_no_exception(metavar='\u000C')
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def test_metavar_unicode_carriage_return(self):
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self.do_test_no_exception(metavar='\u000D')
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def test_metavar_unicode_space(self):
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self.do_test_no_exception(metavar='\u0020')
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def test_metavar_unicode_next_line(self):
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self.do_test_no_exception(metavar='\u0085')
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def test_metavar_unicode_non_breaking_space(self):
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self.do_test_no_exception(metavar='\u00A0')
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def test_metavar_unicode_ogham_space_mark(self):
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self.do_test_no_exception(metavar='\u1680')
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def test_metavar_unicode_en_quad(self):
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self.do_test_no_exception(metavar='\u2000')
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def test_metavar_unicode_em_quad(self):
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self.do_test_no_exception(metavar='\u2001')
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def test_metavar_unicode_en_space(self):
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self.do_test_no_exception(metavar='\u2002')
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def test_metavar_unicode_em_space(self):
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self.do_test_no_exception(metavar='\u2003')
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def test_metavar_unicode_three_per_em_space(self):
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self.do_test_no_exception(metavar='\u2004')
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def test_metavar_unicode_four_per_em_space(self):
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self.do_test_no_exception(metavar='\u2005')
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def test_metavar_unicode_six_per_em_space(self):
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self.do_test_no_exception(metavar='\u2006')
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def test_metavar_unicode_figure_space(self):
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self.do_test_no_exception(metavar='\u2007')
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def test_metavar_unicode_puctuation_space(self):
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self.do_test_no_exception(metavar='\u2008')
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def test_metavar_unicode_thin_space(self):
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self.do_test_no_exception(metavar='\u2009')
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def test_metavar_unicode_hair_space(self):
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self.do_test_no_exception(metavar='\u200A')
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def test_metavar_unicode_line_separator(self):
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self.do_test_no_exception(metavar='\u2028')
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def test_metavar_unicode_paragraph_separator(self):
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self.do_test_no_exception(metavar='\u2029')
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def test_metavar_unicode_narrow_no_break_space(self):
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self.do_test_no_exception(metavar='\u202F')
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def test_metavar_unicode_medium_mathematical_space(self):
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self.do_test_no_exception(metavar='\u205F')
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def test_metavar_unicode_ideographic_sp 10000 ace(self):
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self.do_test_no_exception(metavar='\u3000')
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def test_metavar_unicode_mongolian_vowel_separator(self):
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self.do_test_no_exception(metavar='\u180E')
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def test_metavar_unicode_zero_width_space(self):
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self.do_test_no_exception(metavar='\u200B')
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def test_metavar_unicode_zero_width_non_joiner(self):
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self.do_test_no_exception(metavar='\u200C')
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def test_metavar_unicode_zero_width_joiner(self):
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self.do_test_no_exception(metavar='\u200D')
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def test_metavar_unicode_word_joiner(self):
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self.do_test_no_exception(metavar='\u2060')
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def test_metavar_unicode_zero_width_non_breaking_space(self):
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self.do_test_no_exception(metavar='\uFEFF')
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# visible 'whitespace' characters, mainly with typesetting usages.
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def test_metavar_unicode_middle_dot(self):
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self.do_test_no_exception(metavar='\u00B7')
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def test_metavar_unicode_shouldered_open_box(self):
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self.do_test_no_exception(metavar='\u237D')
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def test_metavar_unicode_symbol_for_space(self):
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self.do_test_no_exception(metavar='\u2420')
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def test_metavar_unicode_blank_symbol(self):
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self.do_test_no_exception(metavar='\u2422')
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def test_metavar_unicode_open_box(self):
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self.do_test_no_exception(metavar='\u2423')
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class TestInvalidNargs(TestCase):
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EXPECTED_INVALID_MESSAGE = "invalid nargs value"
@@ -5296,6 +5481,32 @@ def test_help_with_metavar(self):
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'''))
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class TestHelpUsageWrapAllowsNilAndTab(HelpTestCase):
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"""Usage message should wrap successfully when metavar='' or literal tab
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Other whitespace characters may behave differently on different systems,
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but should not cause an assertion error."""
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parser_signature = Sig(prog='PROG' * 19)
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argument_signatures = [
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Sig('--nil', metavar=''),
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Sig('--Tab', metavar='\ttab')
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]
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argument_group_signatures = []
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usage = '''\
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usage: PROGPROGPROGPROGPROGPROGPROGPROGPROGPROGPROGPROGPROGPROGPROGPROGPROGPROGPROG
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[-h] [--nil] [--Tab tab]
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'''
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help = usage + '''\
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optional arguments:
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-h, --help show this help message and exit
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--nil \
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--Tab tab
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'''
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version = ''
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class TestExitOnError(TestCase):
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def setUp(self):

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