292         def check(expr, expected):  function
301         check('', '0')
302         check('8.2 + 6', '14.2')
303         check('3.1 + $a', '6.1')
304         check('2 + "$a.$b"', '5.6')
305         check('4*[llength "6 2"]', '8')
306         check('{word one} < "word $a"', '0')
307         check('4*2 < 7', '0')
308         check('hypot($a, 4)', '5.0')
309         check('5 / 4', '1')
310         check('5 / 4.0', '1.25')
311         check('5 / ( [string length "abcd"] + 0.0 )', '1.25')
312         check('20.0/5.0', '4.0')
313         check('"0x03" > "2"', '1')
314         check('[string length "a\xbd\u20ac"]', '3')
315         check(r'[string length "a\xbd\u20ac"]', '3')
316         check('"abc"', 'abc')
317         check('"a\xbd\u20ac"', 'a\xbd\u20ac')
318         check(r'"a\xbd\u20ac"', 'a\xbd\u20ac')
319         check(r'"a\0b"', 'a\x00b')
321             check('2**64', str(2**64))
327         def check(expr, expected):  function
336         check('', 0.0)
337         check('8.2 + 6', 14.2)
338         check('3.1 + $a', 6.1)
339         check('2 + "$a.$b"', 5.6)
340         check('4*[llength "6 2"]', 8.0)
341         check('{word one} < "word $a"', 0.0)
342         check('4*2 < 7', 0.0)
343         check('hypot($a, 4)', 5.0)
344         check('5 / 4', 1.0)
345         check('5 / 4.0', 1.25)
346         check('5 / ( [string length "abcd"] + 0.0 )', 1.25)
347         check('20.0/5.0', 4.0)
348         check('"0x03" > "2"', 1.0)
349         check('[string length "a\xbd\u20ac"]', 3.0)
350         check(r'[string length "a\xbd\u20ac"]', 3.0)
353             check('2**64', float(2**64))
359         def check(expr, expected):  function
368         check('', 0)
369         check('8.2 + 6', 14)
370         check('3.1 + $a', 6)
371         check('2 + "$a.$b"', 5)
372         check('4*[llength "6 2"]', 8)
373         check('{word one} < "word $a"', 0)
374         check('4*2 < 7', 0)
375         check('hypot($a, 4)', 5)
376         check('5 / 4', 1)
377         check('5 / 4.0', 1)
378         check('5 / ( [string length "abcd"] + 0.0 )', 1)
379         check('20.0/5.0', 4)
380         check('"0x03" > "2"', 1)
381         check('[string length "a\xbd\u20ac"]', 3)
382         check(r'[string length "a\xbd\u20ac"]', 3)
391         def check(expr, expected):  function
401         check('', False)
403             check(value, False)
404             check('"%s"' % value, False)
405             check('{%s}' % value, False)
407             check(value, True)
408             check('"%s"' % value, True)
409             check('{%s}' % value, True)
410         check('8.2 + 6', True)
411         check('3.1 + $a', True)
412         check('2 + "$a.$b"', True)
413         check('4*[llength "6 2"]', True)
414         check('{word one} < "word $a"', False)
415         check('4*2 < 7', False)
416         check('hypot($a, 4)', True)
417         check('5 / 4', True)
418         check('5 / 4.0', True)
419         check('5 / ( [string length "abcd"] + 0.0 )', True)
420         check('20.0/5.0', True)
421         check('"0x03" > "2"', True)
422         check('[string length "a\xbd\u20ac"]', True)
423         check(r'[string length "a\xbd\u20ac"]', True)
426             check('2**64', True)
431         def check(expr, expected):  function
439         check('true', True)
440         check('yes', True)
441         check('on', True)
442         check('false', False)
443         check('no', False)
444         check('off', False)
445         check('1 < 2', True)
446         check('1 > 2', False)
519         def check(value, expected=None, *, eq=self.assertEqual):  function
533         check(True, '1')
534         check(False, '0')
535         check('string')
536         check('string\xbd')
537         check('string\u20ac')
538         check('string\U0001f4bb')
540             check('<\udce2\udc82\udcac>', '<\u20ac>')
541             check('<\udced\udca0\udcbd\udced\udcb2\udcbb>', '<\U0001f4bb>')
542         check('')
543         check(b'string', 'string')
544         check(b'string\xe2\x82\xac', 'string\xe2\x82\xac')
545         check(b'string\xbd', 'string\xbd')
546         check(b'', '')
547         check('str\x00ing')
548         check('str\x00ing\xbd')
549         check('str\x00ing\u20ac')
550         check(b'str\x00ing', 'str\x00ing')
551         check(b'str\xc0\x80ing', 'str\xc0\x80ing')
552         check(b'str\xc0\x80ing\xe2\x82\xac', 'str\xc0\x80ing\xe2\x82\xac')
554             check(i, str(i))
556             check(2**1000, str(2**1000))
558             check(f, repr(f))
561             check(f, eq=float_eq)
562         check(float('inf'), eq=float_eq)
563         check(-float('inf'), eq=float_eq)
565         check((), '')
566         check((1, (2,), (3, 4), '5 6', ()), '1 2 {3 4} {5 6} {}')
567         check([1, [2,], [3, 4], '5 6', []], '1 2 {3 4} {5 6} {}')
713         def check(value):  function
720         check('')
721         check('spam')
722         check('sp am')
723         check('sp\tam')
724         check('sp\nam')
725         check(' \t\n')
726         check('{spam}')
727         check('{sp am}')
728         check('"spam"')
729         check('"sp am"')
730         check('{"spam"}')
731         check('"{spam}"')
732         check('sp\\am')
733         check('"sp\\am"')
734         check('"{}" "{}"')
735         check('"\\')
736         check('"{')
737         check('"}')
738         check('\n\\')
739         check('\n{')
740         check('\n}')
741         check('\\\n')
742         check('{\n')
743         check('}\n')