##// END OF EJS Templates
Handle kernel messages synchronously...
Handle kernel messages synchronously A problem can happen when two messages come in for different comms, where the second depends on the first (for example, the first might be a message setting the state of a widget, and the second triggering a view creation for the widget). Since comm message queues are independent of each other, the second message could be executed before the first message. This exposes a more fundamental assumption users are likely to have that messages from python are processed synchronously. Thanks to @dmadeka for reporting an error that led to discovering this issue.

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test_nbbase.py
148 lines | 5.3 KiB | text/x-python | PythonLexer
from unittest import TestCase
from ..nbbase import (
NotebookNode,
new_code_cell, new_text_cell, new_worksheet, new_notebook, new_output,
new_author, new_metadata, new_heading_cell, nbformat
)
class TestCell(TestCase):
def test_empty_code_cell(self):
cc = new_code_cell()
self.assertEqual(cc.cell_type,u'code')
self.assertEqual(u'input' not in cc, True)
self.assertEqual(u'prompt_number' not in cc, True)
self.assertEqual(cc.outputs, [])
self.assertEqual(cc.collapsed, False)
def test_code_cell(self):
cc = new_code_cell(input='a=10', prompt_number=0, collapsed=True)
cc.outputs = [new_output(output_type=u'pyout',
output_svg=u'foo',output_text=u'10',prompt_number=0)]
self.assertEqual(cc.input, u'a=10')
self.assertEqual(cc.prompt_number, 0)
self.assertEqual(cc.language, u'python')
self.assertEqual(cc.outputs[0].svg, u'foo')
self.assertEqual(cc.outputs[0].text, u'10')
self.assertEqual(cc.outputs[0].prompt_number, 0)
self.assertEqual(cc.collapsed, True)
def test_pyerr(self):
o = new_output(output_type=u'pyerr', ename=u'NameError',
evalue=u'Name not found', traceback=[u'frame 0', u'frame 1', u'frame 2']
)
self.assertEqual(o.output_type, u'pyerr')
self.assertEqual(o.ename, u'NameError')
self.assertEqual(o.evalue, u'Name not found')
self.assertEqual(o.traceback, [u'frame 0', u'frame 1', u'frame 2'])
def test_empty_html_cell(self):
tc = new_text_cell(u'html')
self.assertEqual(tc.cell_type, u'html')
self.assertEqual(u'source' not in tc, True)
def test_html_cell(self):
tc = new_text_cell(u'html', 'hi')
self.assertEqual(tc.source, u'hi')
def test_empty_markdown_cell(self):
tc = new_text_cell(u'markdown')
self.assertEqual(tc.cell_type, u'markdown')
self.assertEqual(u'source' not in tc, True)
def test_markdown_cell(self):
tc = new_text_cell(u'markdown', 'hi')
self.assertEqual(tc.source, u'hi')
def test_empty_raw_cell(self):
tc = new_text_cell(u'raw')
self.assertEqual(tc.cell_type, u'raw')
self.assertEqual(u'source' not in tc, True)
def test_raw_cell(self):
tc = new_text_cell(u'raw', 'hi')
self.assertEqual(tc.source, u'hi')
def test_empty_heading_cell(self):
tc = new_heading_cell()
self.assertEqual(tc.cell_type, u'heading')
self.assertEqual(u'source' not in tc, True)
def test_heading_cell(self):
tc = new_heading_cell(u'hi', level=2)
self.assertEqual(tc.source, u'hi')
self.assertEqual(tc.level, 2)
class TestWorksheet(TestCase):
def test_empty_worksheet(self):
ws = new_worksheet()
self.assertEqual(ws.cells,[])
self.assertEqual(u'name' not in ws, True)
def test_worksheet(self):
cells = [new_code_cell(), new_text_cell(u'html')]
ws = new_worksheet(cells=cells)
self.assertEqual(ws.cells,cells)
class TestNotebook(TestCase):
def test_empty_notebook(self):
nb = new_notebook()
self.assertEqual(nb.worksheets, [])
self.assertEqual(nb.metadata, NotebookNode())
self.assertEqual(nb.nbformat,nbformat)
def test_notebook(self):
worksheets = [new_worksheet(),new_worksheet()]
metadata = new_metadata(name=u'foo')
nb = new_notebook(metadata=metadata,worksheets=worksheets)
self.assertEqual(nb.metadata.name,u'foo')
self.assertEqual(nb.worksheets,worksheets)
self.assertEqual(nb.nbformat,nbformat)
def test_notebook_name(self):
worksheets = [new_worksheet(),new_worksheet()]
nb = new_notebook(name='foo',worksheets=worksheets)
self.assertEqual(nb.metadata.name,u'foo')
self.assertEqual(nb.worksheets,worksheets)
self.assertEqual(nb.nbformat,nbformat)
class TestMetadata(TestCase):
def test_empty_metadata(self):
md = new_metadata()
self.assertEqual(u'name' not in md, True)
self.assertEqual(u'authors' not in md, True)
self.assertEqual(u'license' not in md, True)
self.assertEqual(u'saved' not in md, True)
self.assertEqual(u'modified' not in md, True)
self.assertEqual(u'gistid' not in md, True)
def test_metadata(self):
authors = [new_author(name='Bart Simpson',email='bsimpson@fox.com')]
md = new_metadata(name=u'foo',license=u'BSD',created=u'today',
modified=u'now',gistid=u'21341231',authors=authors)
self.assertEqual(md.name, u'foo')
self.assertEqual(md.license, u'BSD')
self.assertEqual(md.created, u'today')
self.assertEqual(md.modified, u'now')
self.assertEqual(md.gistid, u'21341231')
self.assertEqual(md.authors, authors)
class TestOutputs(TestCase):
def test_binary_png(self):
out = new_output(output_png=b'\x89PNG\r\n\x1a\n', output_type='display_data')
def test_b64b6tes_png(self):
out = new_output(output_png=b'iVBORw0KG', output_type='display_data')
def test_binary_jpeg(self):
out = new_output(output_jpeg=b'\xff\xd8', output_type='display_data')
def test_b64b6tes_jpeg(self):
out = new_output(output_jpeg=b'/9', output_type='display_data')