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kitchen/kitchen3/tests/test_text_display.py

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Import kitchen_1.2.4.orig.tar.gz
2016-07-08 23:18:01 +00:00
# -*- coding: utf-8 -*-
#
import unittest
from nose import tools
from kitchen.text.exceptions import ControlCharError
from kitchen.text import display
import base_classes
class TestDisplay(base_classes.UnicodeTestData, unittest.TestCase):
def test_internal_interval_bisearch(self):
'''Test that we can find things in an interval table'''
table = ((0, 3), (5,7), (9, 10))
tools.assert_true(display._interval_bisearch(0, table))
tools.assert_true(display._interval_bisearch(1, table))
tools.assert_true(display._interval_bisearch(2, table))
tools.assert_true(display._interval_bisearch(3, table))
tools.assert_true(display._interval_bisearch(5, table))
tools.assert_true(display._interval_bisearch(6, table))
tools.assert_true(display._interval_bisearch(7, table))
tools.assert_true(display._interval_bisearch(9, table))
tools.assert_true(display._interval_bisearch(10, table))
tools.assert_false(display._interval_bisearch(-1, table))
tools.assert_false(display._interval_bisearch(4, table))
tools.assert_false(display._interval_bisearch(8, table))
tools.assert_false(display._interval_bisearch(11, table))
def test_internal_generate_combining_table(self):
'''Test that the combining table we generate is equal to or a subset of what's in the current table
If we assert it can mean one of two things:
1. The code is broken
2. The table we have is out of date.
'''
old_table = display._COMBINING
new_table = display._generate_combining_table()
for interval in new_table:
if interval[0] == interval[1]:
tools.assert_true(display._interval_bisearch(interval[0], old_table))
else:
for codepoint in range(interval[0], interval[1] + 1):
tools.assert_true(display._interval_bisearch(interval[0], old_table))
def test_internal_ucp_width(self):
'''Test that ucp_width returns proper width for characters'''
for codepoint in range(0, 0xFFFFF + 1):
if codepoint < 32 or (codepoint < 0xa0 and codepoint >= 0x7f):
# With strict on, we should raise an error
tools.assert_raises(ControlCharError, display._ucp_width, codepoint, 'strict')
if codepoint in (0x08, 0x1b, 0x7f, 0x94):
# Backspace, delete, clear delete remove one char
tools.eq_(display._ucp_width(codepoint), -1)
else:
# Everything else returns 0
tools.eq_(display._ucp_width(codepoint), 0)
elif display._interval_bisearch(codepoint, display._COMBINING):
# Combining character
tools.eq_(display._ucp_width(codepoint), 0)
elif (codepoint >= 0x1100 and
(codepoint <= 0x115f or # Hangul Jamo init. consonants
codepoint == 0x2329 or codepoint == 0x232a or
(codepoint >= 0x2e80 and codepoint <= 0xa4cf and
codepoint != 0x303f) or # CJK ... Yi
(codepoint >= 0xac00 and codepoint <= 0xd7a3) or # Hangul Syllables
(codepoint >= 0xf900 and codepoint <= 0xfaff) or # CJK Compatibility Ideographs
(codepoint >= 0xfe10 and codepoint <= 0xfe19) or # Vertical forms
(codepoint >= 0xfe30 and codepoint <= 0xfe6f) or # CJK Compatibility Forms
(codepoint >= 0xff00 and codepoint <= 0xff60) or # Fullwidth Forms
(codepoint >= 0xffe0 and codepoint <= 0xffe6) or
(codepoint >= 0x20000 and codepoint <= 0x2fffd) or
(codepoint >= 0x30000 and codepoint <= 0x3fffd))):
tools.eq_(display._ucp_width(codepoint), 2)
else:
tools.eq_(display._ucp_width(codepoint), 1)
def test_textual_width(self):
'''Test that we find the proper number of spaces that a utf8 string will consume'''
tools.eq_(display.textual_width(self.u_japanese), 31)
tools.eq_(display.textual_width(self.u_spanish), 50)
tools.eq_(display.textual_width(self.u_mixed), 23)
def test_textual_width_chop(self):
'''utf8_width_chop with byte strings'''
tools.eq_(display.textual_width_chop(self.u_mixed, 1000), self.u_mixed)
tools.eq_(display.textual_width_chop(self.u_mixed, 23), self.u_mixed)
tools.eq_(display.textual_width_chop(self.u_mixed, 22), self.u_mixed[:-1])
tools.eq_(display.textual_width_chop(self.u_mixed, 19), self.u_mixed[:-4])
tools.eq_(display.textual_width_chop(self.u_mixed, 1), '')
tools.eq_(display.textual_width_chop(self.u_mixed, 2), self.u_mixed[0])
tools.eq_(display.textual_width_chop(self.u_mixed, 3), self.u_mixed[:2])
tools.eq_(display.textual_width_chop(self.u_mixed, 4), self.u_mixed[:3])
tools.eq_(display.textual_width_chop(self.u_mixed, 5), self.u_mixed[:4])
tools.eq_(display.textual_width_chop(self.u_mixed, 6), self.u_mixed[:5])
tools.eq_(display.textual_width_chop(self.u_mixed, 7), self.u_mixed[:5])
tools.eq_(display.textual_width_chop(self.u_mixed, 8), self.u_mixed[:6])
tools.eq_(display.textual_width_chop(self.u_mixed, 9), self.u_mixed[:7])
tools.eq_(display.textual_width_chop(self.u_mixed, 10), self.u_mixed[:8])
tools.eq_(display.textual_width_chop(self.u_mixed, 11), self.u_mixed[:9])
tools.eq_(display.textual_width_chop(self.u_mixed, 12), self.u_mixed[:10])
tools.eq_(display.textual_width_chop(self.u_mixed, 13), self.u_mixed[:10])
tools.eq_(display.textual_width_chop(self.u_mixed, 14), self.u_mixed[:11])
tools.eq_(display.textual_width_chop(self.u_mixed, 15), self.u_mixed[:12])
tools.eq_(display.textual_width_chop(self.u_mixed, 16), self.u_mixed[:13])
tools.eq_(display.textual_width_chop(self.u_mixed, 17), self.u_mixed[:14])
tools.eq_(display.textual_width_chop(self.u_mixed, 18), self.u_mixed[:15])
tools.eq_(display.textual_width_chop(self.u_mixed, 19), self.u_mixed[:15])
tools.eq_(display.textual_width_chop(self.u_mixed, 20), self.u_mixed[:16])
tools.eq_(display.textual_width_chop(self.u_mixed, 21), self.u_mixed[:17])
def test_textual_width_fill(self):
'''Pad a utf8 string'''
tools.eq_(display.textual_width_fill(self.u_mixed, 1), self.u_mixed)
tools.eq_(display.textual_width_fill(self.u_mixed, 25), self.u_mixed + ' ')
tools.eq_(display.textual_width_fill(self.u_mixed, 25, left=False), ' ' + self.u_mixed)
tools.eq_(display.textual_width_fill(self.u_mixed, 25, chop=18), self.u_mixed[:-4] + ' ')
tools.eq_(display.textual_width_fill(self.u_mixed, 25, chop=18, prefix=self.u_spanish, suffix=self.u_spanish), self.u_spanish + self.u_mixed[:-4] + self.u_spanish + ' ')
tools.eq_(display.textual_width_fill(self.u_mixed, 25, chop=18), self.u_mixed[:-4] + ' ')
tools.eq_(display.textual_width_fill(self.u_mixed, 25, chop=18, prefix=self.u_spanish, suffix=self.u_spanish), self.u_spanish + self.u_mixed[:-4] + self.u_spanish + ' ')
def test_internal_textual_width_le(self):
test_data = ''.join([self.u_mixed, self.u_spanish])
tw = display.textual_width(test_data)
tools.eq_(display._textual_width_le(68, self.u_mixed, self.u_spanish), (tw <= 68))
tools.eq_(display._textual_width_le(69, self.u_mixed, self.u_spanish), (tw <= 69))
tools.eq_(display._textual_width_le(137, self.u_mixed, self.u_spanish), (tw <= 137))
tools.eq_(display._textual_width_le(138, self.u_mixed, self.u_spanish), (tw <= 138))
tools.eq_(display._textual_width_le(78, self.u_mixed, self.u_spanish), (tw <= 78))
tools.eq_(display._textual_width_le(79, self.u_mixed, self.u_spanish), (tw <= 79))
def test_wrap(self):
'''Test that text wrapping works'''
tools.eq_(display.wrap(self.u_mixed), [self.u_mixed])
tools.eq_(display.wrap(self.u_paragraph), self.u_paragraph_out)
tools.eq_(display.wrap(self.utf8_paragraph), self.u_paragraph_out)
tools.eq_(display.wrap(self.u_mixed_para), self.u_mixed_para_out)
tools.eq_(display.wrap(self.u_mixed_para, width=57,
initial_indent=' ', subsequent_indent='----'),
self.u_mixed_para_57_initial_subsequent_out)
def test_fill(self):
tools.eq_(display.fill(self.u_paragraph), '\n'.join(self.u_paragraph_out))
tools.eq_(display.fill(self.utf8_paragraph), '\n'.join(self.u_paragraph_out))
tools.eq_(display.fill(self.u_mixed_para), '\n'.join(self.u_mixed_para_out))
tools.eq_(display.fill(self.u_mixed_para, width=57,
initial_indent=' ', subsequent_indent='----'),
'\n'.join(self.u_mixed_para_57_initial_subsequent_out))
def test_byte_string_textual_width_fill(self):
tools.eq_(display.byte_string_textual_width_fill(self.utf8_mixed, 1), self.utf8_mixed)
tools.eq_(display.byte_string_textual_width_fill(self.utf8_mixed, 25), self.utf8_mixed + b' ')
tools.eq_(display.byte_string_textual_width_fill(self.utf8_mixed, 25, left=False), b' ' + self.utf8_mixed)
tools.eq_(display.byte_string_textual_width_fill(self.utf8_mixed, 25, chop=18), self.u_mixed[:-4].encode('utf8') + b' ')
tools.eq_(display.byte_string_textual_width_fill(self.utf8_mixed, 25, chop=18, prefix=self.utf8_spanish, suffix=self.utf8_spanish), self.utf8_spanish + self.u_mixed[:-4].encode('utf8') + self.utf8_spanish + b' ')
tools.eq_(display.byte_string_textual_width_fill(self.utf8_mixed, 25, chop=18), self.u_mixed[:-4].encode('utf8') + b' ')
tools.eq_(display.byte_string_textual_width_fill(self.utf8_mixed, 25, chop=18, prefix=self.utf8_spanish, suffix=self.utf8_spanish), self.utf8_spanish + self.u_mixed[:-4].encode('utf8') + self.utf8_spanish + b' ')
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