[utils][tests][text] Remove nose

IPython/utils/tests/test_text.py

@@ -1,205 +1,207 b''
 # encoding: utf-8
 """Tests for IPython.utils.text"""
 
 #-----------------------------------------------------------------------------
 #  Copyright (C) 2011  The IPython Development Team
 #
 #  Distributed under the terms of the BSD License.  The full license is in
 #  the file COPYING, distributed as part of this software.
 #-----------------------------------------------------------------------------
 
 #-----------------------------------------------------------------------------
 # Imports
 #-----------------------------------------------------------------------------
 
 import os
 import math
 import random
 import sys
 
-import nose.tools as nt
 from pathlib import Path
 
+import pytest
+
 from IPython.utils import text
 
 #-----------------------------------------------------------------------------
 # Globals
 #-----------------------------------------------------------------------------
 
 def test_columnize():
     """Basic columnize tests."""
     size = 5
     items = [l*size for l in 'abcd']
 
     out = text.columnize(items, displaywidth=80)
     assert out == "aaaaa  bbbbb  ccccc  ddddd\n"
     out = text.columnize(items, displaywidth=25)
     assert out == "aaaaa  ccccc\nbbbbb  ddddd\n"
     out = text.columnize(items, displaywidth=12)
     assert out == "aaaaa  ccccc\nbbbbb  ddddd\n"
     out = text.columnize(items, displaywidth=10)
     assert out == "aaaaa\nbbbbb\nccccc\nddddd\n"
 
     out = text.columnize(items, row_first=True, displaywidth=80)
     assert out == "aaaaa  bbbbb  ccccc  ddddd\n"
     out = text.columnize(items, row_first=True, displaywidth=25)
     assert out == "aaaaa  bbbbb\nccccc  ddddd\n"
     out = text.columnize(items, row_first=True, displaywidth=12)
     assert out == "aaaaa  bbbbb\nccccc  ddddd\n"
     out = text.columnize(items, row_first=True, displaywidth=10)
     assert out == "aaaaa\nbbbbb\nccccc\nddddd\n"
 
     out = text.columnize(items, displaywidth=40, spread=True)
     assert out == "aaaaa      bbbbb      ccccc      ddddd\n"
     out = text.columnize(items, displaywidth=20, spread=True)
     assert out == "aaaaa          ccccc\nbbbbb          ddddd\n"
     out = text.columnize(items, displaywidth=12, spread=True)
     assert out == "aaaaa  ccccc\nbbbbb  ddddd\n"
     out = text.columnize(items, displaywidth=10, spread=True)
     assert out == "aaaaa\nbbbbb\nccccc\nddddd\n"
 
 
 def test_columnize_random():
     """Test with random input to hopefully catch edge case """
     for row_first in [True, False]:
         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, row_first=row_first, 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, "row_first={0}".format(row_first)
 
 
 # TODO: pytest mark.parametrize once nose removed.
 def test_columnize_medium():
     """Test with inputs than shouldn't be wider than 80"""
     size = 40
     items = [l*size for l in 'abc']
     for row_first in [True, False]:
         out = text.columnize(items, row_first=row_first, displaywidth=80)
         assert out == "\n".join(items + [""]), "row_first={0}".format(row_first)
 
 
 # TODO: pytest mark.parametrize once nose removed.
 def test_columnize_long():
     """Test columnize with inputs longer than the display window"""
     size = 11
     items = [l*size for l in 'abc']
     for row_first in [True, False]:
         out = text.columnize(items, row_first=row_first, displaywidth=size - 1)
         assert out == "\n".join(items + [""]), "row_first={0}".format(row_first)
 
 
 def eval_formatter_check(f):
     ns = dict(n=12, pi=math.pi, stuff='hello there', os=os, u=u"café", b="café")
     s = f.format("{n} {n//4} {stuff.split()[0]}", **ns)
     assert s == "12 3 hello"
     s = f.format(' '.join(['{n//%i}'%i for i in range(1,8)]), **ns)
     assert s == "12 6 4 3 2 2 1"
     s = f.format('{[n//i for i in range(1,8)]}', **ns)
     assert s == "[12, 6, 4, 3, 2, 2, 1]"
     s = f.format("{stuff!s}", **ns)
     assert s == ns["stuff"]
     s = f.format("{stuff!r}", **ns)
     assert s == repr(ns["stuff"])
 
     # Check with unicode:
     s = f.format("{u}", **ns)
     assert s == ns["u"]
     # This decodes in a platform dependent manner, but it shouldn't error out
     s = f.format("{b}", **ns)
-        
-    nt.assert_raises(NameError, f.format, '{dne}', **ns)
+
+    pytest.raises(NameError, f.format, "{dne}", **ns)
+
 
 def eval_formatter_slicing_check(f):
     ns = dict(n=12, pi=math.pi, stuff='hello there', os=os)
     s = f.format(" {stuff.split()[:]} ", **ns)
     assert s == " ['hello', 'there'] "
     s = f.format(" {stuff.split()[::-1]} ", **ns)
     assert s == " ['there', 'hello'] "
     s = f.format("{stuff[::2]}", **ns)
     assert s == ns["stuff"][::2]
 
-    nt.assert_raises(SyntaxError, f.format, "{n:x}", **ns)
+    pytest.raises(SyntaxError, f.format, "{n:x}", **ns)
 
 def eval_formatter_no_slicing_check(f):
     ns = dict(n=12, pi=math.pi, stuff='hello there', os=os)
     
     s = f.format('{n:x} {pi**2:+f}', **ns)
     assert s == "c +9.869604"
 
     s = f.format("{stuff[slice(1,4)]}", **ns)
     assert s == "ell"
 
     s = f.format("{a[:]}", a=[1, 2])
     assert s == "[1, 2]"
 
 def test_eval_formatter():
     f = text.EvalFormatter()
     eval_formatter_check(f)
     eval_formatter_no_slicing_check(f)
 
 def test_full_eval_formatter():
     f = text.FullEvalFormatter()
     eval_formatter_check(f)
     eval_formatter_slicing_check(f)
 
 def test_dollar_formatter():
     f = text.DollarFormatter()
     eval_formatter_check(f)
     eval_formatter_slicing_check(f)
     
     ns = dict(n=12, pi=math.pi, stuff='hello there', os=os)
     s = f.format("$n", **ns)
     assert s == "12"
     s = f.format("$n.real", **ns)
     assert s == "12"
     s = f.format("$n/{stuff[:5]}", **ns)
     assert s == "12/hello"
     s = f.format("$n $$HOME", **ns)
     assert s == "12 $HOME"
     s = f.format("${foo}", foo="HOME")
     assert s == "$HOME"
 
 
 def test_strip_email():
     src = """\
         >> >>> def f(x):
         >> ...   return x+1
         >> ... 
         >> >>> zz = f(2.5)"""
     cln = """\
 >>> def f(x):
 ...   return x+1
 ... 
 >>> zz = f(2.5)"""
     assert text.strip_email_quotes(src) == cln
 
 
 def test_strip_email2():
     src = '> > > list()'
     cln = 'list()'
     assert text.strip_email_quotes(src) == cln
 
 def test_LSString():
     lss = text.LSString("abc\ndef")
     assert lss.l == ["abc", "def"]
     assert lss.s == "abc def"
     lss = text.LSString(os.getcwd())
-    nt.assert_is_instance(lss.p[0], Path)
+    assert isinstance(lss.p[0], Path)
 
 def test_SList():
     sl = text.SList(["a 11", "b 1", "a 2"])
     assert sl.n == "a 11\nb 1\na 2"
     assert sl.s == "a 11 b 1 a 2"
     assert sl.grep(lambda x: x.startswith("a")) == text.SList(["a 11", "a 2"])
     assert sl.fields(0) == text.SList(["a", "b", "a"])
     assert sl.sort(field=1, nums=True) == text.SList(["b 1", "a 2", "a 11"])