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Co-authored-by: Lysandros Nikolaou <lisandrosnik@gmail.com> Co-authored-by: Bénédikt Tran <10796600+picnixz@users.noreply.github.com> Co-authored-by: Adam Turner <9087854+AA-Turner@users.noreply.github.com> Co-authored-by: Hugo van Kemenade <1324225+hugovk@users.noreply.github.com> Co-authored-by: Wingy <git@wingysam.xyz> Co-authored-by: Koudai Aono <koxudaxi@gmail.com> Co-authored-by: Dave Peck <davepeck@gmail.com> Co-authored-by: Terry Jan Reedy <tjreedy@udel.edu> Co-authored-by: Paul Everitt <pauleveritt@me.com> Co-authored-by: sobolevn <mail@sobolevn.me>
55 lines
1.8 KiB
Python
55 lines
1.8 KiB
Python
import unittest
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from string.templatelib import Interpolation
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class TStringBaseCase:
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def assertTStringEqual(self, t, strings, interpolations):
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"""Test template string literal equality.
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The *strings* argument must be a tuple of strings equal to *t.strings*.
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The *interpolations* argument must be a sequence of tuples which are
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compared against *t.interpolations*. Each tuple consists of
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(value, expression, conversion, format_spec), though the final two
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items may be omitted, and are assumed to be None and '' respectively.
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"""
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self.assertEqual(t.strings, strings)
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self.assertEqual(len(t.interpolations), len(interpolations))
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for i, exp in zip(t.interpolations, interpolations, strict=True):
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if len(exp) == 4:
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actual = (i.value, i.expression, i.conversion, i.format_spec)
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self.assertEqual(actual, exp)
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continue
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if len(exp) == 3:
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self.assertEqual((i.value, i.expression, i.conversion), exp)
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self.assertEqual(i.format_spec, '')
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continue
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self.assertEqual((i.value, i.expression), exp)
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self.assertEqual(i.format_spec, '')
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self.assertIsNone(i.conversion)
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def convert(value, conversion):
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if conversion == "a":
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return ascii(value)
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elif conversion == "r":
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return repr(value)
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elif conversion == "s":
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return str(value)
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return value
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def fstring(template):
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parts = []
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for item in template:
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match item:
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case str() as s:
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parts.append(s)
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case Interpolation(value, _, conversion, format_spec):
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value = convert(value, conversion)
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value = format(value, format_spec)
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parts.append(value)
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return "".join(parts)
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