mirror of https://github.com/mahmoud/boltons.git
85 lines
2.2 KiB
Python
85 lines
2.2 KiB
Python
# -*- coding: utf-8 -*-
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import re
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from collections import namedtuple
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from boltons.formatutils import (get_format_args,
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split_format_str,
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tokenize_format_str,
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infer_positional_format_args,
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DeferredValue as DV)
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PFAT = namedtuple("PositionalFormatArgTest", "fstr arg_vals res")
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_PFATS = [PFAT('{} {} {}', ('hi', 'hello', 'bye'), "hi hello bye"),
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PFAT('{:d} {}', (1, 2), "1 2"),
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PFAT('{!s} {!r}', ('str', 'repr'), "str 'repr'"),
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PFAT('{[hi]}, {.__name__!r}', ({'hi': 'hi'}, re), "hi, 're'"),
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PFAT('{{joek}} ({} {})', ('so', 'funny'), "{joek} (so funny)")]
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def test_pos_infer():
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for i, (tmpl, args, res) in enumerate(_PFATS):
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converted = infer_positional_format_args(tmpl)
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assert converted.format(*args) == res
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_TEST_TMPLS = ["example 1: {hello}",
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"example 2: {hello:*10}",
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"example 3: {hello:*{width}}",
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"example 4: {hello!r:{fchar}{width}}, {width}, yes",
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"example 5: {0}, {1:d}, {2:f}, {1}"]
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try:
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from collections import OrderedDict
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except ImportError:
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pass # skip the non-2.6 compatible tests on 2.6
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else:
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_TEST_TMPLS.append("example 6: {}, {}, {}, {1}")
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del OrderedDict
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def test_get_fstr_args():
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results = []
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for t in _TEST_TMPLS:
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inferred_t = infer_positional_format_args(t)
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res = get_format_args(inferred_t)
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results.append(res)
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return results
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def test_split_fstr():
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results = []
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for t in _TEST_TMPLS:
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res = split_format_str(t)
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results.append(res)
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return results
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def test_tokenize_format_str():
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results = []
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for t in _TEST_TMPLS:
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res = tokenize_format_str(t)
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results.append(res)
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return results
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def test_deferredvalue():
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def myfunc():
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myfunc.called += 1
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return 123
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myfunc.called = 0
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dv = DV(myfunc)
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assert str(dv) == '123'
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assert myfunc.called == 1
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assert str(dv) == '123'
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assert myfunc.called == 1
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dv.cache_value = False
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assert str(dv) == '123'
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assert myfunc.called == 2
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assert str(dv) == '123'
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assert myfunc.called == 3
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