638 lines
23 KiB
Plaintext
638 lines
23 KiB
Plaintext
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# Test cases for strings (compile and run)
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[case testStrBasics]
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from typing import Tuple
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def f() -> str:
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return 'some string'
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def g() -> str:
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return 'some\a \v \t \x7f " \n \0string 🐍'
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def tostr(x: int) -> str:
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return str(x)
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def booltostr(x: bool) -> str:
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return str(x)
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def concat(x: str, y: str) -> str:
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return x + y
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def eq(x: str) -> int:
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if x == 'foo':
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return 0
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elif x != 'bar':
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return 1
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return 2
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def match(x: str, y: str) -> Tuple[bool, bool]:
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return (x.startswith(y), x.endswith(y))
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[file driver.py]
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from native import f, g, tostr, booltostr, concat, eq, match
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import sys
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assert f() == 'some string'
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assert f() is sys.intern('some string')
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assert g() == 'some\a \v \t \x7f " \n \0string 🐍'
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assert tostr(57) == '57'
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assert concat('foo', 'bar') == 'foobar'
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assert booltostr(True) == 'True'
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assert booltostr(False) == 'False'
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assert eq('foo') == 0
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assert eq('zar') == 1
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assert eq('bar') == 2
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assert int(tostr(0)) == 0
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assert int(tostr(20)) == 20
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assert match('', '') == (True, True)
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assert match('abc', '') == (True, True)
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assert match('abc', 'a') == (True, False)
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assert match('abc', 'c') == (False, True)
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assert match('', 'abc') == (False, False)
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[case testStringOps]
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from typing import List, Optional
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def do_split(s: str, sep: Optional[str] = None, max_split: Optional[int] = None) -> List[str]:
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if sep is not None:
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if max_split is not None:
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return s.split(sep, max_split)
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else:
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return s.split(sep)
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return s.split()
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ss = "abc abcd abcde abcdef"
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def test_split() -> None:
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assert do_split(ss) == ["abc", "abcd", "abcde", "abcdef"]
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assert do_split(ss, " ") == ["abc", "abcd", "abcde", "abcdef"]
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assert do_split(ss, "-") == ["abc abcd abcde abcdef"]
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assert do_split(ss, " ", -1) == ["abc", "abcd", "abcde", "abcdef"]
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assert do_split(ss, " ", 0) == ["abc abcd abcde abcdef"]
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assert do_split(ss, " ", 1) == ["abc", "abcd abcde abcdef"]
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assert do_split(ss, " ", 2) == ["abc", "abcd", "abcde abcdef"]
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def getitem(s: str, index: int) -> str:
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return s[index]
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from testutil import assertRaises
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s = "abc"
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def test_getitem() -> None:
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assert getitem(s, 0) == "a"
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assert getitem(s, 1) == "b"
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assert getitem(s, 2) == "c"
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assert getitem(s, -3) == "a"
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assert getitem(s, -2) == "b"
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assert getitem(s, -1) == "c"
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with assertRaises(IndexError, "string index out of range"):
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getitem(s, 4)
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with assertRaises(IndexError, "string index out of range"):
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getitem(s, -4)
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def str_to_int(s: str, base: Optional[int] = None) -> int:
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if base:
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return int(s, base)
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else:
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return int(s)
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def test_str_to_int() -> None:
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assert str_to_int("1") == 1
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assert str_to_int("10") == 10
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assert str_to_int("a", 16) == 10
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assert str_to_int("1a", 16) == 26
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with assertRaises(ValueError, "invalid literal for int() with base 10: 'xyz'"):
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str_to_int("xyz")
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def test_slicing() -> None:
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# Use dummy adds to avoid constant folding
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zero = int()
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two = zero + 2
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s = "foobar" + str()
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assert s[two:] == "obar"
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assert s[:two] == "fo"
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assert s[two:-two] == "ob"
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assert s[two:two] == ""
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assert s[two:two + 1] == "o"
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assert s[-two:] == "ar"
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assert s[:-two] == "foob"
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assert s[:] == "foobar"
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assert s[two:333] == "obar"
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assert s[333:two] == ""
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assert s[two:-333] == ""
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assert s[-333:two] == "fo"
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big_int: int = 1000 * 1000 * 1000 * 1000 * 1000 * 1000 * 1000
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assert s[1:big_int] == "oobar"
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assert s[big_int:] == ""
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assert s[-big_int:-1] == "fooba"
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def test_str_replace() -> None:
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a = "foofoofoo"
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assert a.replace("foo", "bar") == "barbarbar"
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assert a.replace("foo", "bar", -1) == "barbarbar"
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assert a.replace("foo", "bar", 1) == "barfoofoo"
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assert a.replace("foo", "bar", 4) == "barbarbar"
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assert a.replace("aaa", "bar") == "foofoofoo"
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assert a.replace("ofo", "xyzw") == "foxyzwxyzwo"
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def is_true(x: str) -> bool:
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if x:
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return True
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else:
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return False
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def is_false(x: str) -> bool:
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if not x:
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return True
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else:
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return False
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def test_str_to_bool() -> None:
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assert is_false('')
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assert not is_true('')
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for x in 'a', 'foo', 'bar', 'some string':
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assert is_true(x)
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assert not is_false(x)
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def test_str_min_max() -> None:
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x: str = 'aaa'
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y: str = 'bbb'
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z: str = 'aa'
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assert min(x, y) == 'aaa'
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assert min(x, z) == 'aa'
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assert max(x, y) == 'bbb'
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assert max(x, z) == 'aaa'
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[case testStringFormattingCStyle]
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[typing fixtures/typing-full.pyi]
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from typing import Tuple
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var = 'mypyc'
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num = 20
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def test_basics() -> None:
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assert 'Hello %s, this is a test' % var == "Hello mypyc, this is a test"
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assert 'Hello %s %d, this is a test' % (var, num) == "Hello mypyc 20, this is a test"
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t: Tuple[str, int] = (var, num)
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assert 'Hello %s %d, this is a test' % t == "Hello mypyc 20, this is a test"
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large_num = 2**65
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assert 'number: %d' % large_num == 'number: 36893488147419103232'
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neg_num = -3
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assert 'negative integer: %d' % neg_num == 'negative integer: -3'
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assert 'negative integer: %d' % (-large_num) == 'negative integer: -36893488147419103232'
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bool_var1 = True
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bool_var2 = False
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assert 'bool: %s, %s' % (bool_var1, bool_var2) == 'bool: True, False'
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float_num = 123.4
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assert '%f' % float_num == '123.400000'
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assert '%.2f' % float_num == '123.40'
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assert '%.5f' % float_num == '123.40000'
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assert '%10.2f' % float_num == ' 123.40'
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assert '%10.5f' % float_num == ' 123.40000'
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assert '%010.5f' % float_num == '0123.40000'
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assert '%015.5f' % float_num == '000000123.40000'
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assert '%e' % float_num == '1.234000e+02'
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large_float = 1.23e30
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large_float2 = 1234123412341234123400000000000000000
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small_float = 1.23e-20
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assert '%f, %f, %f' % (small_float, large_float, large_float2) == \
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'0.000000, 1229999999999999959718843908096.000000, 1234123412341234169005079998930878464.000000'
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assert '%s, %s, %s' % (small_float, large_float, large_float2) == \
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'1.23e-20, 1.23e+30, 1234123412341234123400000000000000000'
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assert '%d, %d, %d' % (small_float, large_float, large_float2) == \
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'0, 1229999999999999959718843908096, 1234123412341234123400000000000000000'
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nan_num = float('nan')
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inf_num = float('inf')
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assert '%s, %s' % (nan_num, inf_num) == 'nan, inf'
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assert '%f, %f' % (nan_num, inf_num) == 'nan, inf'
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[case testFStrings]
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import decimal
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from datetime import datetime
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var = 'mypyc'
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num = 20
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def test_fstring_basics() -> None:
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assert f'Hello {var}, this is a test' == "Hello mypyc, this is a test"
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large_num = 2**65
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assert f'number: {large_num}' == 'number: 36893488147419103232'
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neg_num = -3
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assert f'negative integer: {neg_num}' == 'negative integer: -3'
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assert f'negative integer: {-large_num}' == 'negative integer: -36893488147419103232'
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bool_var1 = True
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bool_var2 = False
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assert f'bool: {bool_var1}, {bool_var2}' == 'bool: True, False'
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x = bytes([1, 2, 3, 4])
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# assert f'bytes: {x}' == "bytes: b'\\x01\\x02\\x03\\x04'"
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# error: On Python 3 formatting "b'abc'" with "{}" produces "b'abc'", not "abc";
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# use "{!r}" if this is desired behavior behavior
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float_num = 123.4
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assert f'{float_num}' == '123.4'
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assert f'{float_num:.2f}' == '123.40'
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assert f'{float_num:.5f}' == '123.40000'
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assert f'{float_num:>10.2f}' == ' 123.40'
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assert f'{float_num:>10.5f}' == ' 123.40000'
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assert f'{float_num:>010.5f}' == '0123.40000'
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assert f'{float_num:>015.5f}' == '000000123.40000'
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assert f'{float_num:e}' == '1.234000e+02'
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large_float = 1.23e30
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large_float2 = 1234123412341234123400000000000000000
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small_float = 1.23e-20
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assert f'{small_float}, {large_float}, {large_float2}' == '1.23e-20, 1.23e+30, 1234123412341234123400000000000000000'
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nan_num = float('nan')
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inf_num = float('inf')
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assert f'{nan_num}, {inf_num}' == 'nan, inf'
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# F-strings would be translated into ''.join[string literals, format method call, ...] in mypy AST.
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# Currently we are using a str.join specializer for f-string speed up. We might not cover all cases
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# and the rest ones should fall back to a normal str.join method call.
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# TODO: Once we have a new pipeline for f-strings, this test case can be moved to testStringOps.
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def test_str_join() -> None:
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var = 'mypyc'
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num = 10
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assert ''.join(['a', 'b', '{}'.format(var), 'c']) == 'abmypycc'
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assert ''.join(['a', 'b', '{:{}}'.format(var, ''), 'c']) == 'abmypycc'
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assert ''.join(['a', 'b', '{:{}}'.format(var, '>10'), 'c']) == 'ab mypycc'
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assert ''.join(['a', 'b', '{:{}}'.format(var, '>{}'.format(num)), 'c']) == 'ab mypycc'
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assert var.join(['a', '{:{}}'.format(var, ''), 'b']) == 'amypycmypycmypycb'
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assert ','.join(['a', '{:{}}'.format(var, ''), 'b']) == 'a,mypyc,b'
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assert ''.join(['x', var]) == 'xmypyc'
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class A:
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def __init__(self, name, age):
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self.name = name
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self.age = age
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def __repr__(self):
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return f'{self.name} is {self.age} years old.'
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def test_fstring_datatype() -> None:
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u = A('John Doe', 14)
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assert f'{u}' == 'John Doe is 14 years old.'
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d = {'name': 'John Doe', 'age': 14}
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assert f'{d}' == "{'name': 'John Doe', 'age': 14}"
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def test_fstring_escape() -> None:
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assert f"{'inside'}" == 'inside'
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assert f'{"inside"}' == 'inside'
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assert f"""inside""" == 'inside'
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assert f'''inside''' == 'inside'
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assert f"\"{'inside'}\"" == '"inside"'
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assert f'\'{"inside"}\'' == "'inside'"
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assert f'{{10}}' == '{10}'
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assert f'{{10 + 10}}' == '{10 + 10}'
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assert f'{{{10 + 10}}}' == '{20}'
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assert f'{{{{10 + 10}}}}' == '{{10 + 10}}'
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def test_fstring_conversion() -> None:
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assert f'Hello {var!r}' == "Hello 'mypyc'"
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# repr() is equivalent to !r
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assert f'Hello {repr(var)}' == "Hello 'mypyc'"
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assert f'Hello {var!a}' == "Hello 'mypyc'"
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# ascii() is equivalent to !a
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assert f'Hello {ascii(var)}' == "Hello 'mypyc'"
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tmp_str = """this
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is a new line."""
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assert f'Test: {tmp_str!a}' == "Test: 'this\\n is a new line.'"
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s = 'test: āĀēĒčČ..šŠūŪžŽ'
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assert f'{s}' == 'test: āĀēĒčČ..šŠūŪžŽ'
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assert f'{s!a}' == "'test: \\u0101\\u0100\\u0113\\u0112\\u010d\\u010c..\\u0161\\u0160\\u016b\\u016a\\u017e\\u017d'"
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assert f'Hello {var!s}' == 'Hello mypyc'
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assert f'Hello {num!s}' == 'Hello 20'
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def test_fstring_align() -> None:
|
|||
|
|
assert f'Hello {var:>20}' == "Hello mypyc"
|
|||
|
|
assert f'Hello {var!r:>20}' == "Hello 'mypyc'"
|
|||
|
|
assert f'Hello {var:>{num}}' == "Hello mypyc"
|
|||
|
|
assert f'Hello {var!r:>{num}}' == "Hello 'mypyc'"
|
|||
|
|
|
|||
|
|
def test_fstring_multi() -> None:
|
|||
|
|
assert f'Hello {var}, hello again {var}' == "Hello mypyc, hello again mypyc"
|
|||
|
|
a = 'py'
|
|||
|
|
s = f'my{a}my{a}my{a}my{a}my{a}my{a}my{a}my{a}my{a}my{a}my{a}my{a}my{a}my{a}my{a}my{a}my{a}my{a}my{a}my{a}my{a}my{a}my{a}my{a}'
|
|||
|
|
assert s == 'mypymypymypymypymypymypymypymypymypymypymypymypymypymypymypymypymypymypymypymypymypymypymypymypy'
|
|||
|
|
|
|||
|
|
def test_fstring_python_doc() -> None:
|
|||
|
|
name = 'Fred'
|
|||
|
|
assert f"He said his name is {name!r}." == "He said his name is 'Fred'."
|
|||
|
|
assert f"He said his name is {repr(name)}." == "He said his name is 'Fred'."
|
|||
|
|
|
|||
|
|
width = 10
|
|||
|
|
precision = 4
|
|||
|
|
value = decimal.Decimal('12.34567')
|
|||
|
|
assert f'result: {value:{width}.{precision}}' == 'result: 12.35' # nested field
|
|||
|
|
|
|||
|
|
today = datetime(year=2017, month=1, day=27)
|
|||
|
|
assert f'{today:%B %d, %Y}' == 'January 27, 2017' # using date format specifier
|
|||
|
|
|
|||
|
|
number = 1024
|
|||
|
|
assert f'{number:#0x}' == '0x400' # using integer format specifier
|
|||
|
|
|
|||
|
|
[case testStringFormatMethod]
|
|||
|
|
from typing import Tuple
|
|||
|
|
|
|||
|
|
def test_format_method_basics() -> None:
|
|||
|
|
x = str()
|
|||
|
|
assert 'x{}'.format(x) == 'x'
|
|||
|
|
assert 'ā{}'.format(x) == 'ā'
|
|||
|
|
assert '😀{}'.format(x) == '😀'
|
|||
|
|
assert ''.format() == ''
|
|||
|
|
assert 'abc'.format() == 'abc'
|
|||
|
|
assert '{}{}'.format(1, 2) == '12'
|
|||
|
|
|
|||
|
|
name = 'Eric'
|
|||
|
|
age = 14
|
|||
|
|
assert "My name is {name}, I'm {age}.".format(name=name, age=age) == "My name is Eric, I'm 14."
|
|||
|
|
assert "My name is {A}, I'm {B}.".format(A=name, B=age) == "My name is Eric, I'm 14."
|
|||
|
|
assert "My name is {}, I'm {B}.".format(name, B=age) == "My name is Eric, I'm 14."
|
|||
|
|
|
|||
|
|
bool_var1 = True
|
|||
|
|
bool_var2 = False
|
|||
|
|
assert 'bool: {}, {}'.format(bool_var1, bool_var2) == 'bool: True, False'
|
|||
|
|
|
|||
|
|
def test_format_method_empty_braces() -> None:
|
|||
|
|
name = 'Eric'
|
|||
|
|
age = 14
|
|||
|
|
|
|||
|
|
assert 'Hello, {}!'.format(name) == 'Hello, Eric!'
|
|||
|
|
assert '{}'.format(name) == 'Eric'
|
|||
|
|
assert '{}! Hi!'.format(name) == 'Eric! Hi!'
|
|||
|
|
assert '{}, Hi, {}'.format(name, name) == 'Eric, Hi, Eric'
|
|||
|
|
assert 'Hi! {}'.format(name) == 'Hi! Eric'
|
|||
|
|
assert "Hi, I'm {}. I'm {}.".format(name, age) == "Hi, I'm Eric. I'm 14."
|
|||
|
|
|
|||
|
|
assert '{{}}'.format() == '{}'
|
|||
|
|
assert '{{{{}}}}'.format() == '{{}}'
|
|||
|
|
assert '{{}}{}'.format(name) == '{}Eric'
|
|||
|
|
assert 'Hi! {{{}}}'.format(name) == 'Hi! {Eric}'
|
|||
|
|
assert 'Hi! {{ {}'.format(name) == 'Hi! { Eric'
|
|||
|
|
assert 'Hi! {{ {} }}}}'.format(name) == 'Hi! { Eric }}'
|
|||
|
|
|
|||
|
|
def test_format_method_numbers() -> None:
|
|||
|
|
s = 'int: {0:d}; hex: {0:x}; oct: {0:o}; bin: {0:b}'.format(-233)
|
|||
|
|
assert s == 'int: -233; hex: -e9; oct: -351; bin: -11101001'
|
|||
|
|
num = 2**65
|
|||
|
|
s = 'int: {0:d}; hex: {0:x}; oct: {0:o}; bin: {0:b}'.format(num)
|
|||
|
|
assert s == 'int: 36893488147419103232; hex: 20000000000000000; oct: 4000000000000000000000; bin: 100000000000000000000000000000000000000000000000000000000000000000'
|
|||
|
|
s = 'int: {0:d}; hex: {0:x}; oct: {0:o}; bin: {0:b}'.format(-num)
|
|||
|
|
assert s == 'int: -36893488147419103232; hex: -20000000000000000; oct: -4000000000000000000000; bin: -100000000000000000000000000000000000000000000000000000000000000000'
|
|||
|
|
|
|||
|
|
large_num = 2**65
|
|||
|
|
assert 'number: {}'.format(large_num) == 'number: 36893488147419103232'
|
|||
|
|
neg_num = -3
|
|||
|
|
assert 'negative integer: {}'.format(neg_num) == 'negative integer: -3'
|
|||
|
|
assert 'negative integer: {}'.format(-large_num) == 'negative integer: -36893488147419103232'
|
|||
|
|
|
|||
|
|
large_float = 1.23e30
|
|||
|
|
large_float2 = 1234123412341234123400000000000000000
|
|||
|
|
small_float = 1.23e-20
|
|||
|
|
assert '{}, {}, {}'.format(small_float, large_float, large_float2) == '1.23e-20, 1.23e+30, 1234123412341234123400000000000000000'
|
|||
|
|
nan_num = float('nan')
|
|||
|
|
inf_num = float('inf')
|
|||
|
|
assert '{}, {}'.format(nan_num, inf_num) == 'nan, inf'
|
|||
|
|
|
|||
|
|
def format_args(*args: int) -> str:
|
|||
|
|
return 'x{}y{}'.format(*args)
|
|||
|
|
def format_kwargs(**kwargs: int) -> str:
|
|||
|
|
return 'c{x}d{y}'.format(**kwargs)
|
|||
|
|
def format_args_self(*args: int) -> str:
|
|||
|
|
return '{}'.format(args)
|
|||
|
|
def format_kwargs_self(**kwargs: int) -> str:
|
|||
|
|
return '{}'.format(kwargs)
|
|||
|
|
|
|||
|
|
def test_format_method_args() -> None:
|
|||
|
|
assert format_args(10, 2) == 'x10y2'
|
|||
|
|
assert format_args_self(10, 2) == '(10, 2)'
|
|||
|
|
assert format_kwargs(x=10, y=2) == 'c10d2'
|
|||
|
|
assert format_kwargs(x=10, y=2, z=1) == 'c10d2'
|
|||
|
|
assert format_kwargs_self(x=10, y=2, z=1) == "{'x': 10, 'y': 2, 'z': 1}"
|
|||
|
|
|
|||
|
|
def test_format_method_different_kind() -> None:
|
|||
|
|
s1 = "Literal['😀']"
|
|||
|
|
assert 'Revealed type is {}'.format(s1) == "Revealed type is Literal['😀']"
|
|||
|
|
s2 = "Revealed type is"
|
|||
|
|
assert "{} Literal['😀']".format(s2) == "Revealed type is Literal['😀']"
|
|||
|
|
s3 = "测试："
|
|||
|
|
assert "{}{} {}".format(s3, s2, s1) == "测试：Revealed type is Literal['😀']"
|
|||
|
|
assert "Test: {}{}".format(s3, s1) == "Test: 测试：Literal['😀']"
|
|||
|
|
assert "Test: {}{}".format(s3, s2) == "Test: 测试：Revealed type is"
|
|||
|
|
|
|||
|
|
def test_format_method_nested() -> None:
|
|||
|
|
var = 'mypyc'
|
|||
|
|
num = 10
|
|||
|
|
assert '{:{}}'.format(var, '') == 'mypyc'
|
|||
|
|
assert '{:{}}'.format(var, '>10') == ' mypyc'
|
|||
|
|
assert '{:{}}'.format(var, '>{}'.format(num)) == ' mypyc'
|
|||
|
|
|
|||
|
|
class Point:
|
|||
|
|
def __init__(self, x, y):
|
|||
|
|
self.x, self.y = x, y
|
|||
|
|
def __str__(self):
|
|||
|
|
return 'Point({self.x}, {self.y})'.format(self=self)
|
|||
|
|
|
|||
|
|
# Format examples from Python doc
|
|||
|
|
# https://docs.python.org/3/library/string.html#formatexamples
|
|||
|
|
def test_format_method_python_doc() -> None:
|
|||
|
|
# Accessing arguments by position:
|
|||
|
|
assert '{0}, {1}, {2}'.format('a', 'b', 'c') == 'a, b, c'
|
|||
|
|
assert '{}, {}, {}'.format('a', 'b', 'c') == 'a, b, c'
|
|||
|
|
assert '{2}, {1}, {0}'.format('a', 'b', 'c') == 'c, b, a'
|
|||
|
|
assert '{2}, {1}, {0}'.format(*'abc') == 'c, b, a' # unpacking argument sequence
|
|||
|
|
# assert '{0}{1}{0}'.format('abra', 'cad') = 'abracadabra' # arguments' indices can be repeated
|
|||
|
|
|
|||
|
|
# Accessing arguments by name:
|
|||
|
|
s = 'Coordinates: {latitude}, {longitude}'.format(latitude='37.24N', longitude='-115.81W')
|
|||
|
|
assert s == 'Coordinates: 37.24N, -115.81W'
|
|||
|
|
coord = {'latitude': '37.24N', 'longitude': '-115.81W'}
|
|||
|
|
assert 'Coordinates: {latitude}, {longitude}'.format(**coord) == 'Coordinates: 37.24N, -115.81W'
|
|||
|
|
|
|||
|
|
# Accessing arguments’ attributes:
|
|||
|
|
assert str(Point(4, 2)) == 'Point(4, 2)'
|
|||
|
|
|
|||
|
|
# Accessing arguments’ items:
|
|||
|
|
coord2 = (3, 5)
|
|||
|
|
assert 'X: {0[0]}; Y: {0[1]}'.format(coord2) == 'X: 3; Y: 5'
|
|||
|
|
|
|||
|
|
# Replacing %s and %r:
|
|||
|
|
s = "repr() shows quotes: {!r}; str() doesn't: {!s}".format('test1', 'test2')
|
|||
|
|
assert s == "repr() shows quotes: 'test1'; str() doesn't: test2"
|
|||
|
|
|
|||
|
|
# Aligning the text and specifying a width:
|
|||
|
|
assert '{:<30}'.format('left aligned') == 'left aligned '
|
|||
|
|
assert '{:>30}'.format('right aligned') == ' right aligned'
|
|||
|
|
assert '{:^30}'.format('centered') == ' centered '
|
|||
|
|
assert '{:*^30}'.format('centered') == '***********centered***********' # use '*' as a fill char
|
|||
|
|
|
|||
|
|
# Replacing %+f, %-f, and % f and specifying a sign:
|
|||
|
|
assert '{:+f}; {:+f}'.format(3.14, -3.14) == '+3.140000; -3.140000' # show it always
|
|||
|
|
assert '{: f}; {: f}'.format(3.14, -3.14) == ' 3.140000; -3.140000' # show a space for positive numbers
|
|||
|
|
assert '{:-f}; {:-f}'.format(3.14, -3.14) == '3.140000; -3.140000' # show only the minus -- same as '{:f}; {:f}'
|
|||
|
|
|
|||
|
|
# Replacing %x and %o and converting the value to different bases:
|
|||
|
|
s = 'int: {0:d}; hex: {0:x}; oct: {0:o}; bin: {0:b}'.format(42) # format also supports binary numbers
|
|||
|
|
assert s == 'int: 42; hex: 2a; oct: 52; bin: 101010'
|
|||
|
|
s = 'int: {0:d}; hex: {0:#x}; oct: {0:#o}; bin: {0:#b}'.format(42) # with 0x, 0o, or 0b as prefix:
|
|||
|
|
assert s == 'int: 42; hex: 0x2a; oct: 0o52; bin: 0b101010'
|
|||
|
|
|
|||
|
|
# Using the comma as a thousands separator:
|
|||
|
|
assert '{:,}'.format(1234567890) == '1,234,567,890'
|
|||
|
|
|
|||
|
|
# Expressing a percentage:
|
|||
|
|
points = 19.0
|
|||
|
|
total = 22.0
|
|||
|
|
assert 'Correct answers: {:.2%}'.format(points/total) == 'Correct answers: 86.36%'
|
|||
|
|
|
|||
|
|
# Using type-specific formatting:
|
|||
|
|
import datetime
|
|||
|
|
d = datetime.datetime(2010, 7, 4, 12, 15, 58)
|
|||
|
|
assert '{:%Y-%m-%d %H:%M:%S}'.format(d) == '2010-07-04 12:15:58'
|
|||
|
|
|
|||
|
|
# Nesting arguments and more complex examples:
|
|||
|
|
tmp_strs = []
|
|||
|
|
for align, text in zip('<^>', ['left', 'center', 'right']):
|
|||
|
|
tmp_strs.append('{0:{fill}{align}16}'.format(text, fill=align, align=align))
|
|||
|
|
assert tmp_strs == ['left<<<<<<<<<<<<', '^^^^^center^^^^^', '>>>>>>>>>>>right']
|
|||
|
|
|
|||
|
|
octets = [192, 168, 0, 1]
|
|||
|
|
assert '{:02X}{:02X}{:02X}{:02X}'.format(*octets) == 'C0A80001'
|
|||
|
|
|
|||
|
|
width = 5
|
|||
|
|
tmp_strs = []
|
|||
|
|
for num in range(5,12):
|
|||
|
|
tmp_str = ''
|
|||
|
|
for base in 'dXob':
|
|||
|
|
tmp_str += ('{0:{width}{base}}'.format(num, base=base, width=width))
|
|||
|
|
tmp_strs.append(tmp_str)
|
|||
|
|
assert tmp_strs == [' 5 5 5 101',\
|
|||
|
|
' 6 6 6 110',\
|
|||
|
|
' 7 7 7 111',\
|
|||
|
|
' 8 8 10 1000',\
|
|||
|
|
' 9 9 11 1001',\
|
|||
|
|
' 10 A 12 1010',\
|
|||
|
|
' 11 B 13 1011']
|
|||
|
|
|
|||
|
|
[case testChr]
|
|||
|
|
# Some test cases are from https://docs.python.org/3/howto/unicode.html
|
|||
|
|
|
|||
|
|
def try_invalid(x: int) -> bool:
|
|||
|
|
try:
|
|||
|
|
chr(x + int())
|
|||
|
|
return False
|
|||
|
|
except ValueError:
|
|||
|
|
return True
|
|||
|
|
|
|||
|
|
def test_chr() -> None:
|
|||
|
|
assert chr(57344) == '\ue000'
|
|||
|
|
assert chr(0) == '\x00'
|
|||
|
|
assert chr(65) == 'A'
|
|||
|
|
assert chr(150) == '\x96'
|
|||
|
|
try:
|
|||
|
|
chr(-1)
|
|||
|
|
assert False
|
|||
|
|
except ValueError:
|
|||
|
|
pass
|
|||
|
|
try:
|
|||
|
|
chr(1114112)
|
|||
|
|
assert False
|
|||
|
|
except ValueError:
|
|||
|
|
pass
|
|||
|
|
assert chr(1114111) == '\U0010ffff'
|
|||
|
|
x = 0
|
|||
|
|
assert chr(x + int()) == '\x00'
|
|||
|
|
x = 100
|
|||
|
|
assert chr(x + int()) == 'd'
|
|||
|
|
x = 150
|
|||
|
|
assert chr(x + int()) == '\x96'
|
|||
|
|
x = 257
|
|||
|
|
assert chr(x + int()) == 'ā'
|
|||
|
|
x = 65537
|
|||
|
|
assert chr(x + int()) == '𐀁'
|
|||
|
|
assert try_invalid(-1)
|
|||
|
|
assert try_invalid(1114112)
|
|||
|
|
|
|||
|
|
[case testOrd]
|
|||
|
|
def test_ord() -> None:
|
|||
|
|
assert ord('\ue000') == 57344
|
|||
|
|
s = "a\xac\u1234\u20ac\U00008000"
|
|||
|
|
# ^^^^ two-digit hex escape
|
|||
|
|
# ^^^^^^ four-digit Unicode escape
|
|||
|
|
# ^^^^^^^^^^ eight-digit Unicode escape
|
|||
|
|
l1 = [ord(c) for c in s]
|
|||
|
|
assert l1 == [97, 172, 4660, 8364, 32768]
|
|||
|
|
u = 'abcdé'
|
|||
|
|
assert ord(u[-1]) == 233
|
|||
|
|
assert ord(b'a') == 97
|
|||
|
|
assert ord(b'a' + bytes()) == 97
|
|||
|
|
u2 = '\U0010ffff'
|
|||
|
|
assert ord(u2) == 1114111
|
|||
|
|
try:
|
|||
|
|
ord('aa')
|
|||
|
|
assert False
|
|||
|
|
except TypeError:
|
|||
|
|
pass
|
|||
|
|
|
|||
|
|
[case testDecode]
|
|||
|
|
def test_decode() -> None:
|
|||
|
|
assert "\N{GREEK CAPITAL LETTER DELTA}" == '\u0394'
|
|||
|
|
assert "\u0394" == "\u0394"
|
|||
|
|
assert "\U00000394" == '\u0394'
|
|||
|
|
assert b'\x80abc'.decode('utf-8', 'replace') == '\ufffdabc'
|
|||
|
|
assert b'\x80abc'.decode('utf-8', 'backslashreplace') == '\\x80abc'
|
|||
|
|
assert b'abc'.decode() == 'abc'
|
|||
|
|
assert b'abc'.decode('utf-8') == 'abc'
|
|||
|
|
assert b'\x80abc'.decode('utf-8', 'ignore') == 'abc'
|
|||
|
|
assert b'\x80abc'.decode('UTF-8', 'ignore') == 'abc'
|
|||
|
|
assert b'\x80abc'.decode('Utf-8', 'ignore') == 'abc'
|
|||
|
|
assert b'\x80abc'.decode('utf_8', 'ignore') == 'abc'
|
|||
|
|
assert b'\x80abc'.decode('latin1', 'ignore') == '\x80abc'
|
|||
|
|
assert b'\xd2\xbb\xb6\xfe\xc8\xfd'.decode('gbk', 'ignore') == '一二三'
|
|||
|
|
assert b'\xd2\xbb\xb6\xfe\xc8\xfd'.decode('latin1', 'ignore') == 'Ò»¶þÈý'
|
|||
|
|
assert b'Z\xc3\xbcrich'.decode("utf-8") == 'Zürich'
|
|||
|
|
try:
|
|||
|
|
b'Z\xc3\xbcrich'.decode('ascii')
|
|||
|
|
assert False
|
|||
|
|
except UnicodeDecodeError:
|
|||
|
|
pass
|
|||
|
|
assert bytearray(range(5)).decode() == '\x00\x01\x02\x03\x04'
|
|||
|
|
b = bytearray(b'\xe4\xbd\xa0\xe5\xa5\xbd')
|
|||
|
|
assert b.decode() == '你好'
|
|||
|
|
assert b.decode('gbk') == '浣犲ソ'
|
|||
|
|
assert b.decode('latin1') == 'ä½\xa0好'
|
|||
|
|
|
|||
|
|
[case testEncode]
|
|||
|
|
from testutil import assertRaises
|
|||
|
|
|
|||
|
|
def test_encode() -> None:
|
|||
|
|
u = chr(40960) + 'abcd' + chr(1972)
|
|||
|
|
assert u.encode() == b'\xea\x80\x80abcd\xde\xb4'
|
|||
|
|
assert u.encode('utf-8') == b'\xea\x80\x80abcd\xde\xb4'
|
|||
|
|
with assertRaises(UnicodeEncodeError):
|
|||
|
|
u.encode('ascii')
|
|||
|
|
with assertRaises(LookupError):
|
|||
|
|
u.encode('aaa')
|
|||
|
|
assert u.encode('utf-8', 'aaaaaa') == b'\xea\x80\x80abcd\xde\xb4'
|
|||
|
|
assert u.encode('ascii', 'ignore') == b'abcd'
|
|||
|
|
assert u.encode('ASCII', 'ignore') == b'abcd'
|
|||
|
|
assert u.encode('ascii', 'replace') == b'?abcd?'
|
|||
|
|
assert u.encode('ascii', 'xmlcharrefreplace') == b'ꀀabcd޴'
|
|||
|
|
assert u.encode('ascii', 'backslashreplace') == b'\\ua000abcd\\u07b4'
|
|||
|
|
assert u.encode('ascii', 'namereplace') == b'\\N{YI SYLLABLE IT}abcd\\u07b4'
|
|||
|
|
assert 'pythön!'.encode() == b'pyth\xc3\xb6n!'
|
|||
|
|
assert '一二三'.encode('gbk') == b'\xd2\xbb\xb6\xfe\xc8\xfd'
|
|||
|
|
assert u.encode('UTF-8', 'ignore') == b'\xea\x80\x80abcd\xde\xb4'
|
|||
|
|
assert u.encode('Utf_8') == b'\xea\x80\x80abcd\xde\xb4'
|
|||
|
|
assert u.encode('UTF_8') == b'\xea\x80\x80abcd\xde\xb4'
|
|||
|
|
assert u'\u00E1'.encode('latin1') == b'\xe1'
|
|||
|
|
with assertRaises(UnicodeEncodeError):
|
|||
|
|
u.encode('latin1')
|