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Guido van Rossum
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344
Lib/test/test_grammar.py
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344
Lib/test/test_grammar.py
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# Python test set -- part 1, grammar.
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# This just tests whether the parser accepts them all.
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from test_support import *
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print '1. Parser'
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print '1.1 Tokens'
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print '1.1.1 Backslashes'
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# Backslash means line continuation:
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x = 1 \
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+ 1
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if x <> 2: raise TestFailed, 'backslash for line continuation'
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# Backslash does not means continuation in comments :\
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x = 0
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if x <> 0: raise TestFailed, 'backslash ending comment'
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print '1.1.2 Numeric literals'
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print '1.1.2.1 Plain integers'
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if 0xff <> 255: raise TestFailed, 'hex int'
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if 0377 <> 255: raise TestFailed, 'octal int'
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if 2147483647 != 017777777777: raise TestFailed, 'max positive int'
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if -2147483647-1 != 020000000000: raise TestFailed, 'max negative int'
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# XXX -2147483648
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if 037777777777 != -1: raise TestFailed, 'oct -1'
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if 0xffffffff != -1: raise TestFailed, 'hex -1'
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for s in '2147483648', '040000000000', '0x100000000':
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try:
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x = eval(s)
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except OverflowError:
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continue
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raise TestFailed, 'No OverflowError on huge integer literal ' + `s`
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print '1.1.2.2 Long integers'
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x = 0L
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x = 0l
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x = 0xffffffffffffffffL
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x = 0xffffffffffffffffl
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x = 077777777777777777L
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x = 077777777777777777l
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x = 123456789012345678901234567890L
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x = 123456789012345678901234567890l
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print '1.1.2.3 Floating point'
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x = 3.14
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x = 314.
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x = 0.314
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# XXX x = 000.314
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x = .314
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x = 3e14
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x = 3E14
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x = 3e-14
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x = 3e+14
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x = 3.e14
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x = .3e14
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x = 3.1e4
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print '1.2 Grammar'
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print 'single_input' # NEWLINE | simple_stmt | compound_stmt NEWLINE
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# XXX can't test in a script -- this rule is only used when interactive
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print 'file_input' # (NEWLINE | stmt)* ENDMARKER
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# Being tested as this very moment this very module
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print 'expr_input' # testlist NEWLINE
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# XXX Hard to test -- used only in calls to input()
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print 'eval_input' # testlist ENDMARKER
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x = eval('1, 0 or 1')
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print 'funcdef'
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### 'def' NAME parameters ':' suite
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### parameters: '(' [varargslist] ')'
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### varargslist: (fpdef ',')* ('+'|'*') NAME | fpdef (',' fpdef)* [',']
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### fpdef: NAME | '(' fplist ')'
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### fplist: fpdef (',' fpdef)* [',']
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def f1(): pass
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def f2(one_argument): pass
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def f3(two, arguments): pass
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def f4(two, (compound, (argument, list))): pass
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def a1(one_arg,): pass
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def a2(two, args,): pass
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def v0(*rest): pass
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def v1(a, *rest): pass
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def v2(a, b, *rest): pass
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def v3(a, (b, c), *rest): pass
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### stmt: simple_stmt | compound_stmt
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# Tested below
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### simple_stmt: small_stmt (';' small_stmt)* [';']
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print 'simple_stmt'
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x = 1; pass; del x
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### small_stmt: expr_stmt | print_stmt | pass_stmt | del_stmt | flow_stmt | import_stmt
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# Tested below
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print 'expr_stmt' # (exprlist '=')* exprlist
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1
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1, 2, 3
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x = 1
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x = 1, 2, 3
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x = y = z = 1, 2, 3
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x, y, z = 1, 2, 3
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abc = a, b, c = x, y, z = xyz = 1, 2, (3, 4)
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# NB these variables are deleted below
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print 'print_stmt' # 'print' (test ',')* [test]
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print 1, 2, 3
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print 1, 2, 3,
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print
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print 0 or 1, 0 or 1,
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print 0 or 1
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print 'del_stmt' # 'del' exprlist
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del abc
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del x, y, (z, xyz)
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print 'pass_stmt' # 'pass'
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pass
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print 'flow_stmt' # break_stmt | continue_stmt | return_stmt | raise_stmt
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# Tested below
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print 'break_stmt' # 'break'
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while 1: break
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print 'continue_stmt' # 'continue'
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i = 1
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while i: i = 0; continue
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print 'return_stmt' # 'return' [testlist]
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def g1(): return
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def g2(): return 1
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g1()
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x = g2()
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print 'raise_stmt' # 'raise' test [',' test]
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try: raise RuntimeError, 'just testing'
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except RuntimeError: pass
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try: raise KeyboardInterrupt
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except KeyboardInterrupt: pass
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print 'import_stmt' # 'import' NAME (',' NAME)* | 'from' NAME 'import' ('*' | NAME (',' NAME)*)
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[1]
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import sys
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[2]
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import time, math
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[3]
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from time import sleep
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[4]
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from sys import *
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[5]
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from math import sin, cos
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[6]
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print 'global_stmt' # 'global' NAME (',' NAME)*
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def f():
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global a
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global a, b
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global one, two, three, four, five, six, seven, eight, nine, ten
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### compound_stmt: if_stmt | while_stmt | for_stmt | try_stmt | funcdef | classdef
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# Tested below
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print 'if_stmt' # 'if' test ':' suite ('elif' test ':' suite)* ['else' ':' suite]
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if 1: pass
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if 1: pass
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else: pass
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if 0: pass
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elif 0: pass
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if 0: pass
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elif 0: pass
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elif 0: pass
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elif 0: pass
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else: pass
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print 'while_stmt' # 'while' test ':' suite ['else' ':' suite]
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while 0: pass
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while 0: pass
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else: pass
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print 'for_stmt' # 'for' exprlist 'in' exprlist ':' suite ['else' ':' suite]
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[1]
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for i in 1, 2, 3: pass
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[2]
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for i, j, k in (): pass
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else: pass
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[3]
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print 'try_stmt' # 'try' ':' suite (except_clause ':' suite)* ['finally' ':' suite]
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### except_clause: 'except' [expr [',' expr]]
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try: pass
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try: 1/0
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except ZeroDivisionError: pass
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try: 1/0
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except EOFError: pass
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except TypeError, msg: pass
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except RuntimeError, msg: pass
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except: pass
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try: pass
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finally: pass
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try: 1/0
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except: pass
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finally: pass
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print 'suite' # simple_stmt | NEWLINE INDENT NEWLINE* (stmt NEWLINE*)+ DEDENT
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if 1: pass
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if 1:
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pass
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if 1:
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#
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#
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#
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pass
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pass
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#
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pass
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#
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print 'test'
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### and_test ('or' and_test)*
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### and_test: not_test ('and' not_test)*
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### not_test: 'not' not_test | comparison
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if not 1: pass
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if 1 and 1: pass
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if 1 or 1: pass
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if not not not 1: pass
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if not 1 and 1 and 1: pass
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if 1 and 1 or 1 and 1 and 1 or not 1 and 1: pass
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print 'comparison'
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### comparison: expr (comp_op expr)*
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### comp_op: '<'|'>'|'=='|'>='|'<='|'<>'|'!='|'in'|'not' 'in'|'is'|'is' 'not'
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if 1: pass
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x = (1 == 1)
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if 1 == 1: pass
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if 1 != 1: pass
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if 1 <> 1: pass
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if 1 < 1: pass
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if 1 > 1: pass
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if 1 <= 1: pass
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if 1 >= 1: pass
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if 1 is 1: pass
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if 1 is not 1: pass
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if 1 in (): pass
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if 1 not in (): pass
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if 1 < 1 > 1 == 1 >= 1 <= 1 <> 1 in 1 not in 1 is 1 is not 1: pass
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print 'binary mask ops'
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x = 1 & 1
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x = 1 ^ 1
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x = 1 | 1
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print 'shift ops'
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x = 1 << 1
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x = 1 >> 1
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x = 1 << 1 >> 1
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print 'additive ops'
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x = 1
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x = 1 + 1
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x = 1 - 1 - 1
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x = 1 - 1 + 1 - 1 + 1
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print 'multiplicative ops'
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x = 1 * 1
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x = 1 / 1
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x = 1 % 1
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x = 1 / 1 * 1 % 1
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print 'unary ops'
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x = +1
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x = -1
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x = ~1
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x = ~1 ^ 1 & 1 | 1 & 1 ^ -1
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x = -1*1/1 + 1*1 - ---1*1
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print 'selectors'
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### trailer: '(' [testlist] ')' | '[' subscript ']' | '.' NAME
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### subscript: expr | [expr] ':' [expr]
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import sys, time
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c = sys.path[0]
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x = time.time()
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x = sys.modules['time'].time()
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a = '01234'
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c = a[0]
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c = a[-1]
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s = a[0:5]
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s = a[:5]
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s = a[0:]
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s = a[:]
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s = a[-5:]
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s = a[:-1]
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s = a[-4:-3]
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print 'atoms'
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### atom: '(' [testlist] ')' | '[' [testlist] ']' | '{' [dictmaker] '}' | '`' testlist '`' | NAME | NUMBER | STRING
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### dictmaker: test ':' test (',' test ':' test)* [',']
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x = (1)
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x = (1 or 2 or 3)
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x = (1 or 2 or 3, 2, 3)
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x = []
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x = [1]
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x = [1 or 2 or 3]
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x = [1 or 2 or 3, 2, 3]
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x = []
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x = {}
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x = {'one': 1}
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x = {'one': 1,}
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x = {'one' or 'two': 1 or 2}
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x = {'one': 1, 'two': 2}
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x = {'one': 1, 'two': 2,}
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x = {'one': 1, 'two': 2, 'three': 3, 'four': 4, 'five': 5, 'six': 6}
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x = `x`
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x = `1 or 2 or 3`
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x = x
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x = 'x'
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x = 123
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### exprlist: expr (',' expr)* [',']
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### testlist: test (',' test)* [',']
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# These have been exercised enough above
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print 'classdef' # 'class' NAME parameters ['=' baselist] ':' suite
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### baselist: atom arguments (',' atom arguments)*
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### arguments: '(' [testlist] ')'
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class B: pass
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class C1(B): pass
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class C2(B): pass
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class D(C1, C2, B): pass
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class C:
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def meth1(self): pass
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def meth2(self, arg): pass
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def meth3(self, a1, a2): pass
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