# -*- 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 The table we have is out of date.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' ')