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# Copyright (c) IPython Development Team.
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# Distributed under the terms of the Modified BSD License.
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import json
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import os
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import warnings
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from unittest import mock
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import nose.tools as nt
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from IPython.core import display
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from IPython.core.getipython import get_ipython
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from IPython.utils.tempdir import NamedFileInTemporaryDirectory
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from IPython import paths as ipath
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from IPython.testing.tools import AssertPrints, AssertNotPrints
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import IPython.testing.decorators as dec
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def test_image_size():
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"""Simple test for display.Image(args, width=x,height=y)"""
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thisurl = 'http://www.google.fr/images/srpr/logo3w.png'
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img = display.Image(url=thisurl, width=200, height=200)
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nt.assert_equal(u'<img src="%s" width="200" height="200"/>' % (thisurl), img._repr_html_())
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img = display.Image(url=thisurl, metadata={'width':200, 'height':200})
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nt.assert_equal(u'<img src="%s" width="200" height="200"/>' % (thisurl), img._repr_html_())
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img = display.Image(url=thisurl, width=200)
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nt.assert_equal(u'<img src="%s" width="200"/>' % (thisurl), img._repr_html_())
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img = display.Image(url=thisurl)
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nt.assert_equal(u'<img src="%s"/>' % (thisurl), img._repr_html_())
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img = display.Image(url=thisurl, unconfined=True)
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nt.assert_equal(u'<img src="%s" class="unconfined"/>' % (thisurl), img._repr_html_())
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def test_image_mimes():
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fmt = get_ipython().display_formatter.format
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for format in display.Image._ACCEPTABLE_EMBEDDINGS:
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mime = display.Image._MIMETYPES[format]
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img = display.Image(b'garbage', format=format)
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data, metadata = fmt(img)
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nt.assert_equal(sorted(data), sorted([mime, 'text/plain']))
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def test_geojson():
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gj = display.GeoJSON(data={
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"type": "Feature",
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"geometry": {
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"type": "Point",
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"coordinates": [-81.327, 296.038]
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},
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"properties": {
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"name": "Inca City"
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}
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},
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url_template="http://s3-eu-west-1.amazonaws.com/whereonmars.cartodb.net/{basemap_id}/{z}/{x}/{y}.png",
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layer_options={
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"basemap_id": "celestia_mars-shaded-16k_global",
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"attribution": "Celestia/praesepe",
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"minZoom": 0,
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"maxZoom": 18,
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})
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nt.assert_equal(u'<IPython.core.display.GeoJSON object>', str(gj))
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def test_retina_png():
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here = os.path.dirname(__file__)
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img = display.Image(os.path.join(here, "2x2.png"), retina=True)
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nt.assert_equal(img.height, 1)
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nt.assert_equal(img.width, 1)
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data, md = img._repr_png_()
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nt.assert_equal(md['width'], 1)
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nt.assert_equal(md['height'], 1)
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def test_retina_jpeg():
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here = os.path.dirname(__file__)
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img = display.Image(os.path.join(here, "2x2.jpg"), retina=True)
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nt.assert_equal(img.height, 1)
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nt.assert_equal(img.width, 1)
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data, md = img._repr_jpeg_()
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nt.assert_equal(md['width'], 1)
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nt.assert_equal(md['height'], 1)
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def test_base64image():
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display.Image("iVBORw0KGgoAAAANSUhEUgAAAAEAAAABAQMAAAAl21bKAAAAA1BMVEUAAACnej3aAAAAAWJLR0QAiAUdSAAAAAlwSFlzAAALEwAACxMBAJqcGAAAAAd0SU1FB94BCRQnOqNu0b4AAAAKSURBVAjXY2AAAAACAAHiIbwzAAAAAElFTkSuQmCC")
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def test_image_filename_defaults():
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'''test format constraint, and validity of jpeg and png'''
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tpath = ipath.get_ipython_package_dir()
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nt.assert_raises(ValueError, display.Image, filename=os.path.join(tpath, 'testing/tests/badformat.zip'),
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embed=True)
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nt.assert_raises(ValueError, display.Image)
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nt.assert_raises(ValueError, display.Image, data='this is not an image', format='badformat', embed=True)
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# check boths paths to allow packages to test at build and install time
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imgfile = os.path.join(tpath, 'core/tests/2x2.png')
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img = display.Image(filename=imgfile)
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nt.assert_equal('png', img.format)
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nt.assert_is_not_none(img._repr_png_())
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img = display.Image(filename=os.path.join(tpath, 'testing/tests/logo.jpg'), embed=False)
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nt.assert_equal('jpeg', img.format)
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nt.assert_is_none(img._repr_jpeg_())
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def _get_inline_config():
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from ipykernel.pylab.config import InlineBackend
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return InlineBackend.instance()
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@dec.skip_without('matplotlib')
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def test_set_matplotlib_close():
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cfg = _get_inline_config()
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cfg.close_figures = False
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display.set_matplotlib_close()
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assert cfg.close_figures
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display.set_matplotlib_close(False)
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assert not cfg.close_figures
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_fmt_mime_map = {
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'png': 'image/png',
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'jpeg': 'image/jpeg',
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'pdf': 'application/pdf',
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'retina': 'image/png',
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'svg': 'image/svg+xml',
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}
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@dec.skip_without('matplotlib')
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def test_set_matplotlib_formats():
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from matplotlib.figure import Figure
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formatters = get_ipython().display_formatter.formatters
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for formats in [
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('png',),
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('pdf', 'svg'),
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('jpeg', 'retina', 'png'),
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(),
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]:
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active_mimes = {_fmt_mime_map[fmt] for fmt in formats}
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display.set_matplotlib_formats(*formats)
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for mime, f in formatters.items():
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if mime in active_mimes:
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nt.assert_in(Figure, f)
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else:
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nt.assert_not_in(Figure, f)
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@dec.skip_without('matplotlib')
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def test_set_matplotlib_formats_kwargs():
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from matplotlib.figure import Figure
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ip = get_ipython()
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cfg = _get_inline_config()
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cfg.print_figure_kwargs.update(dict(foo='bar'))
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kwargs = dict(quality=10)
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display.set_matplotlib_formats('png', **kwargs)
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formatter = ip.display_formatter.formatters['image/png']
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f = formatter.lookup_by_type(Figure)
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cell = f.__closure__[0].cell_contents
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expected = kwargs
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expected.update(cfg.print_figure_kwargs)
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nt.assert_equal(cell, expected)
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def test_display_available():
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"""
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Test that display is available without import
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We don't really care if it's in builtin or anything else, but it should
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always be available.
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"""
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ip = get_ipython()
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with AssertNotPrints('NameError'):
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ip.run_cell('display')
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try:
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ip.run_cell('del display')
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except NameError:
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pass # it's ok, it might be in builtins
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# even if deleted it should be back
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with AssertNotPrints('NameError'):
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ip.run_cell('display')
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def test_textdisplayobj_pretty_repr():
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p = display.Pretty("This is a simple test")
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nt.assert_equal(repr(p), '<IPython.core.display.Pretty object>')
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nt.assert_equal(p.data, 'This is a simple test')
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p._show_mem_addr = True
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nt.assert_equal(repr(p), object.__repr__(p))
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def test_displayobject_repr():
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h = display.HTML('<br />')
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nt.assert_equal(repr(h), '<IPython.core.display.HTML object>')
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h._show_mem_addr = True
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nt.assert_equal(repr(h), object.__repr__(h))
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h._show_mem_addr = False
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nt.assert_equal(repr(h), '<IPython.core.display.HTML object>')
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j = display.Javascript('')
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nt.assert_equal(repr(j), '<IPython.core.display.Javascript object>')
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j._show_mem_addr = True
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nt.assert_equal(repr(j), object.__repr__(j))
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j._show_mem_addr = False
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nt.assert_equal(repr(j), '<IPython.core.display.Javascript object>')
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def test_progress():
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p = display.ProgressBar(10)
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nt.assert_true('0/10' in repr(p))
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p.html_width = '100%'
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p.progress = 5
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nt.assert_equal(p._repr_html_(), "<progress style='width:100%' max='10' value='5'></progress>")
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def test_json():
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d = {'a': 5}
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lis = [d]
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md = {'expanded': False}
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md2 = {'expanded': True}
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j = display.JSON(d)
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j2 = display.JSON(d, expanded=True)
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nt.assert_equal(j._repr_json_(), (d, md))
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nt.assert_equal(j2._repr_json_(), (d, md2))
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with warnings.catch_warnings(record=True) as w:
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warnings.simplefilter("always")
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j = display.JSON(json.dumps(d))
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nt.assert_equal(len(w), 1)
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nt.assert_equal(j._repr_json_(), (d, md))
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nt.assert_equal(j2._repr_json_(), (d, md2))
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j = display.JSON(lis)
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j2 = display.JSON(lis, expanded=True)
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nt.assert_equal(j._repr_json_(), (lis, md))
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nt.assert_equal(j2._repr_json_(), (lis, md2))
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with warnings.catch_warnings(record=True) as w:
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warnings.simplefilter("always")
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j = display.JSON(json.dumps(lis))
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nt.assert_equal(len(w), 1)
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nt.assert_equal(j._repr_json_(), (lis, md))
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nt.assert_equal(j2._repr_json_(), (lis, md2))
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def test_video_embedding():
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"""use a tempfile, with dummy-data, to ensure that video embedding doesn't crash"""
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v = display.Video("http://ignored")
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assert not v.embed
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html = v._repr_html_()
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nt.assert_not_in('src="data:', html)
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nt.assert_in('src="http://ignored"', html)
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with nt.assert_raises(ValueError):
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v = display.Video(b'abc')
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with NamedFileInTemporaryDirectory('test.mp4') as f:
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f.write(b'abc')
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f.close()
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v = display.Video(f.name)
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assert not v.embed
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html = v._repr_html_()
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nt.assert_not_in('src="data:', html)
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v = display.Video(f.name, embed=True)
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html = v._repr_html_()
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nt.assert_in('src="data:video/mp4;base64,YWJj"',html)
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v = display.Video(f.name, embed=True, mimetype='video/other')
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html = v._repr_html_()
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nt.assert_in('src="data:video/other;base64,YWJj"',html)
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v = display.Video(b'abc', embed=True, mimetype='video/mp4')
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html = v._repr_html_()
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nt.assert_in('src="data:video/mp4;base64,YWJj"',html)
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v = display.Video(u'YWJj', embed=True, mimetype='video/xyz')
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html = v._repr_html_()
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nt.assert_in('src="data:video/xyz;base64,YWJj"',html)
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def test_display_id():
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ip = get_ipython()
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with mock.patch.object(ip.display_pub, 'publish') as pub:
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handle = display.display('x')
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nt.assert_is(handle, None)
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handle = display.display('y', display_id='secret')
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nt.assert_is_instance(handle, display.DisplayHandle)
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handle2 = display.display('z', display_id=True)
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nt.assert_is_instance(handle2, display.DisplayHandle)
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nt.assert_not_equal(handle.display_id, handle2.display_id)
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nt.assert_equal(pub.call_count, 3)
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args, kwargs = pub.call_args_list[0]
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nt.assert_equal(args, ())
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nt.assert_equal(kwargs, {
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'data': {
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'text/plain': repr('x')
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},
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'metadata': {},
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})
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args, kwargs = pub.call_args_list[1]
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nt.assert_equal(args, ())
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nt.assert_equal(kwargs, {
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'data': {
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'text/plain': repr('y')
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},
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'metadata': {},
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'transient': {
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'display_id': handle.display_id,
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},
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})
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args, kwargs = pub.call_args_list[2]
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nt.assert_equal(args, ())
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nt.assert_equal(kwargs, {
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'data': {
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'text/plain': repr('z')
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},
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'metadata': {},
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'transient': {
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'display_id': handle2.display_id,
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},
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})
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def test_update_display():
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ip = get_ipython()
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with mock.patch.object(ip.display_pub, 'publish') as pub:
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with nt.assert_raises(TypeError):
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display.update_display('x')
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display.update_display('x', display_id='1')
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display.update_display('y', display_id='2')
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args, kwargs = pub.call_args_list[0]
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nt.assert_equal(args, ())
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nt.assert_equal(kwargs, {
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'data': {
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'text/plain': repr('x')
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},
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'metadata': {},
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'transient': {
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'display_id': '1',
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},
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'update': True,
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})
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args, kwargs = pub.call_args_list[1]
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nt.assert_equal(args, ())
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nt.assert_equal(kwargs, {
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'data': {
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'text/plain': repr('y')
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},
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'metadata': {},
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'transient': {
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'display_id': '2',
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},
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'update': True,
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})
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def test_display_handle():
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ip = get_ipython()
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handle = display.DisplayHandle()
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nt.assert_is_instance(handle.display_id, str)
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handle = display.DisplayHandle('my-id')
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nt.assert_equal(handle.display_id, 'my-id')
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with mock.patch.object(ip.display_pub, 'publish') as pub:
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handle.display('x')
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handle.update('y')
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args, kwargs = pub.call_args_list[0]
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nt.assert_equal(args, ())
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nt.assert_equal(kwargs, {
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'data': {
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'text/plain': repr('x')
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},
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'metadata': {},
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'transient': {
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'display_id': handle.display_id,
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}
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})
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args, kwargs = pub.call_args_list[1]
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nt.assert_equal(args, ())
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nt.assert_equal(kwargs, {
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'data': {
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'text/plain': repr('y')
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},
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'metadata': {},
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'transient': {
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'display_id': handle.display_id,
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},
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'update': True,
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})
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