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"""Tests for IPython.lib.display.
"""
#-----------------------------------------------------------------------------
# Copyright (c) 2012, the IPython Development Team.
#
# Distributed under the terms of the Modified BSD License.
#
# The full license is in the file COPYING.txt, distributed with this software.
#-----------------------------------------------------------------------------
#-----------------------------------------------------------------------------
# Imports
#-----------------------------------------------------------------------------
from __future__ import print_function
from tempfile import NamedTemporaryFile, mkdtemp
from os.path import split, join as pjoin, dirname
# Third-party imports
import nose.tools as nt
# Our own imports
from IPython.lib import display
from IPython.testing.decorators import skipif_not_numpy
#-----------------------------------------------------------------------------
# Classes and functions
#-----------------------------------------------------------------------------
#--------------------------
# FileLink tests
#--------------------------
def test_instantiation_FileLink():
"""FileLink: Test class can be instantiated"""
fl = display.FileLink('example.txt')
def test_warning_on_non_existant_path_FileLink():
"""FileLink: Calling _repr_html_ on non-existant files returns a warning
"""
fl = display.FileLink('example.txt')
nt.assert_true(fl._repr_html_().startswith('Path (<tt>example.txt</tt>)'))
def test_existing_path_FileLink():
"""FileLink: Calling _repr_html_ functions as expected on existing filepath
"""
tf = NamedTemporaryFile()
fl = display.FileLink(tf.name)
actual = fl._repr_html_()
expected = "<a href='%s' target='_blank'>%s</a><br>" % (tf.name,tf.name)
nt.assert_equal(actual,expected)
def test_existing_path_FileLink_repr():
"""FileLink: Calling repr() functions as expected on existing filepath
"""
tf = NamedTemporaryFile()
fl = display.FileLink(tf.name)
actual = repr(fl)
expected = tf.name
nt.assert_equal(actual,expected)
def test_error_on_directory_to_FileLink():
"""FileLink: Raises error when passed directory
"""
td = mkdtemp()
nt.assert_raises(ValueError,display.FileLink,td)
#--------------------------
# FileLinks tests
#--------------------------
def test_instantiation_FileLinks():
"""FileLinks: Test class can be instantiated
"""
fls = display.FileLinks('example')
def test_warning_on_non_existant_path_FileLinks():
"""FileLinks: Calling _repr_html_ on non-existant files returns a warning
"""
fls = display.FileLinks('example')
nt.assert_true(fls._repr_html_().startswith('Path (<tt>example</tt>)'))
def test_existing_path_FileLinks():
"""FileLinks: Calling _repr_html_ functions as expected on existing dir
"""
td = mkdtemp()
tf1 = NamedTemporaryFile(dir=td)
tf2 = NamedTemporaryFile(dir=td)
fl = display.FileLinks(td)
actual = fl._repr_html_()
actual = actual.split('\n')
actual.sort()
# the links should always have forward slashes, even on windows, so replace
# backslashes with forward slashes here
expected = ["%s/<br>" % td,
" <a href='%s' target='_blank'>%s</a><br>" %\
(tf2.name.replace("\\","/"),split(tf2.name)[1]),
" <a href='%s' target='_blank'>%s</a><br>" %\
(tf1.name.replace("\\","/"),split(tf1.name)[1])]
expected.sort()
# We compare the sorted list of links here as that's more reliable
nt.assert_equal(actual,expected)
def test_existing_path_FileLinks_alt_formatter():
"""FileLinks: Calling _repr_html_ functions as expected w/ an alt formatter
"""
td = mkdtemp()
tf1 = NamedTemporaryFile(dir=td)
tf2 = NamedTemporaryFile(dir=td)
def fake_formatter(dirname,fnames,included_suffixes):
return ["hello","world"]
fl = display.FileLinks(td,notebook_display_formatter=fake_formatter)
actual = fl._repr_html_()
actual = actual.split('\n')
actual.sort()
expected = ["hello","world"]
expected.sort()
# We compare the sorted list of links here as that's more reliable
nt.assert_equal(actual,expected)
def test_existing_path_FileLinks_repr():
"""FileLinks: Calling repr() functions as expected on existing directory """
td = mkdtemp()
tf1 = NamedTemporaryFile(dir=td)
tf2 = NamedTemporaryFile(dir=td)
fl = display.FileLinks(td)
actual = repr(fl)
actual = actual.split('\n')
actual.sort()
expected = ['%s/' % td, ' %s' % split(tf1.name)[1],' %s' % split(tf2.name)[1]]
expected.sort()
# We compare the sorted list of links here as that's more reliable
nt.assert_equal(actual,expected)
def test_existing_path_FileLinks_repr_alt_formatter():
"""FileLinks: Calling repr() functions as expected w/ alt formatter
"""
td = mkdtemp()
tf1 = NamedTemporaryFile(dir=td)
tf2 = NamedTemporaryFile(dir=td)
def fake_formatter(dirname,fnames,included_suffixes):
return ["hello","world"]
fl = display.FileLinks(td,terminal_display_formatter=fake_formatter)
actual = repr(fl)
actual = actual.split('\n')
actual.sort()
expected = ["hello","world"]
expected.sort()
# We compare the sorted list of links here as that's more reliable
nt.assert_equal(actual,expected)
def test_error_on_file_to_FileLinks():
"""FileLinks: Raises error when passed file
"""
td = mkdtemp()
tf1 = NamedTemporaryFile(dir=td)
nt.assert_raises(ValueError,display.FileLinks,tf1.name)
@skipif_not_numpy
def test_audio_from_file():
path = pjoin(dirname(__file__), 'test.wav')
display.Audio(filename=path)
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