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- # encoding: utf-8
- """Tests for IPython.utils.text"""
- from __future__ import print_function
- # Copyright (c) IPython Development Team.
- # Distributed under the terms of the Modified BSD License.
- import os
- import math
- import random
- import sys
- import nose.tools as nt
- from .. import text
- def test_columnize():
- """Basic columnize tests."""
- size = 5
- items = [l*size for l in 'abc']
- out = text.columnize(items, displaywidth=80)
- nt.assert_equal(out, 'aaaaa bbbbb ccccc\n')
- out = text.columnize(items, displaywidth=12)
- nt.assert_equal(out, 'aaaaa ccccc\nbbbbb\n')
- out = text.columnize(items, displaywidth=10)
- nt.assert_equal(out, 'aaaaa\nbbbbb\nccccc\n')
- def test_columnize_random():
- """Test with random input to hopfully catch edge case """
- for nitems in [random.randint(2,70) for i in range(2,20)]:
- displaywidth = random.randint(20,200)
- rand_len = [random.randint(2,displaywidth) for i in range(nitems)]
- items = ['x'*l for l in rand_len]
- out = text.columnize(items, displaywidth=displaywidth)
- longer_line = max([len(x) for x in out.split('\n')])
- longer_element = max(rand_len)
- if longer_line > displaywidth:
- print("Columnize displayed something lager than displaywidth : %s " % longer_line)
- print("longer element : %s " % longer_element)
- print("displaywidth : %s " % displaywidth)
- print("number of element : %s " % nitems)
- print("size of each element :\n %s" % rand_len)
- assert False
- def test_columnize_medium():
- """Test with inputs than shouldn't be wider tahn 80 """
- size = 40
- items = [l*size for l in 'abc']
- out = text.columnize(items, displaywidth=80)
- nt.assert_equal(out, '\n'.join(items+['']))
- def test_columnize_long():
- """Test columnize with inputs longer than the display window"""
- size = 11
- items = [l*size for l in 'abc']
- out = text.columnize(items, displaywidth=size-1)
- nt.assert_equal(out, '\n'.join(items+['']))
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