119 lines
4.0 KiB
Python
119 lines
4.0 KiB
Python
# -*- test-case-name: twisted.conch.test.test_text -*-
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# Copyright (c) Twisted Matrix Laboratories.
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# See LICENSE for details.
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from twisted.conch.insults import text
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from twisted.conch.insults.text import attributes as A
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from twisted.trial import unittest
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class FormattedTextTests(unittest.TestCase):
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"""
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Tests for assembling formatted text.
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"""
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def test_trivial(self) -> None:
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"""
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Using no formatting attributes produces no VT102 control sequences in
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the flattened output.
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"""
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self.assertEqual(
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text.assembleFormattedText(A.normal["Hello, world."]), "Hello, world."
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)
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def test_bold(self) -> None:
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"""
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The bold formatting attribute, L{A.bold}, emits the VT102 control
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sequence to enable bold when flattened.
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"""
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self.assertEqual(
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text.assembleFormattedText(A.bold["Hello, world."]), "\x1b[1mHello, world."
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)
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def test_underline(self) -> None:
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"""
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The underline formatting attribute, L{A.underline}, emits the VT102
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control sequence to enable underlining when flattened.
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"""
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self.assertEqual(
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text.assembleFormattedText(A.underline["Hello, world."]),
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"\x1b[4mHello, world.",
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)
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def test_blink(self) -> None:
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"""
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The blink formatting attribute, L{A.blink}, emits the VT102 control
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sequence to enable blinking when flattened.
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"""
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self.assertEqual(
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text.assembleFormattedText(A.blink["Hello, world."]), "\x1b[5mHello, world."
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)
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def test_reverseVideo(self) -> None:
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"""
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The reverse-video formatting attribute, L{A.reverseVideo}, emits the
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VT102 control sequence to enable reversed video when flattened.
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"""
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self.assertEqual(
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text.assembleFormattedText(A.reverseVideo["Hello, world."]),
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"\x1b[7mHello, world.",
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)
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def test_minus(self) -> None:
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"""
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Formatting attributes prefixed with a minus (C{-}) temporarily disable
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the prefixed attribute, emitting no VT102 control sequence to enable
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it in the flattened output.
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"""
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self.assertEqual(
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text.assembleFormattedText(
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A.bold[A.blink["Hello", -A.bold[" world"], "."]]
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),
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"\x1b[1;5mHello\x1b[0;5m world\x1b[1;5m.",
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)
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def test_foreground(self) -> None:
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"""
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The foreground color formatting attribute, L{A.fg}, emits the VT102
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control sequence to set the selected foreground color when flattened.
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"""
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self.assertEqual(
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text.assembleFormattedText(
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A.normal[A.fg.red["Hello, "], A.fg.green["world!"]]
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),
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"\x1b[31mHello, \x1b[32mworld!",
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)
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def test_background(self) -> None:
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"""
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The background color formatting attribute, L{A.bg}, emits the VT102
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control sequence to set the selected background color when flattened.
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"""
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self.assertEqual(
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text.assembleFormattedText(
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A.normal[A.bg.red["Hello, "], A.bg.green["world!"]]
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),
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"\x1b[41mHello, \x1b[42mworld!",
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)
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def test_flattenDeprecated(self) -> None:
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"""
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L{twisted.conch.insults.text.flatten} emits a deprecation warning when
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imported or accessed.
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"""
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warningsShown = self.flushWarnings([self.test_flattenDeprecated])
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self.assertEqual(len(warningsShown), 0)
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# Trigger the deprecation warning.
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text.flatten
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warningsShown = self.flushWarnings([self.test_flattenDeprecated])
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self.assertEqual(len(warningsShown), 1)
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self.assertEqual(warningsShown[0]["category"], DeprecationWarning)
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self.assertEqual(
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warningsShown[0]["message"],
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"twisted.conch.insults.text.flatten was deprecated in Twisted "
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"13.1.0: Use twisted.conch.insults.text.assembleFormattedText "
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"instead.",
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)
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