Source code for bokeh.util.testing

''' Functions to help with testing Bokeh and reporting issues.
from __future__ import absolute_import, print_function

import codecs
import errno
import os
import shutil
import sys
import tempfile

def makedirs_ok_if_exists(path):
    except IOError as e:  # pragma: no cover (py3 only)
        if e.errno != errno.EEXIST:
            raise e
    except OSError as e:  # pragma: no cover (py2 only)
        if e.errno != errno.EEXIST:
            raise e
    return path

local_tmp = os.path.abspath("./build/tmp")

class WorkingDir(object):
    def __init__(self, pwd):
        self._new = pwd
        self._old = os.getcwd()

    def __exit__(self, type, value, traceback):

    def __enter__(self):
        return self._new

class TmpDir(object):
    def __init__(self, prefix):
        self._dir = tempfile.mkdtemp(prefix=prefix, dir=local_tmp)

    def __exit__(self, type, value, traceback):
        except Exception as e:
            # prefer original exception to rmtree exception
            if value is None:
                print("Exception cleaning up TmpDir %s: %s" % (self._dir, str(e)), file=sys.stderr)
                raise e
                print("Failed to clean up TmpDir %s: %s" % (self._dir, str(e)), file=sys.stderr)
                raise value

    def __enter__(self):
        return self._dir

def with_temporary_file(func, dir=None):
    if dir is None:
        dir = local_tmp
    import tempfile
    # Windows throws a permission denied if we use delete=True for
    # auto-delete, and then try to open the file again ourselves
    # with So we manually delete in the finally block
    # below.
    f = tempfile.NamedTemporaryFile(dir=dir, delete=False)

def with_directory_contents(contents, func):
    with (TmpDir(prefix="test-")) as dirname:
        for filename, file_content in contents.items():
            path = os.path.join(dirname, filename)
            if file_content is None:
                # make a directory
                with, 'w', 'utf-8') as f:
        return func(os.path.realpath(dirname))

def with_file_contents(contents, func, dir=None):
    def with_file_object(f):
        # Windows will get mad if we try to rename it without closing,
        # and some users of with_file_contents want to rename it.

    with_temporary_file(with_file_object, dir=dir)

[docs]def skipIfPy3(message): ''' unittest decorator to skip a test for Python 3 ''' from unittest import skipIf from .platform import is_py3 return skipIf(is_py3(), message)
[docs]def skipIfPyPy(message): ''' unittest decorator to skip a test for PyPy ''' from unittest import skipIf from .platform import is_pypy return skipIf(is_pypy(), message)
[docs]def runtests(args=None): ''' Run the Bokeh tests under the bokeh python directory using pytest. Does not run tests from bokehjs or examples. Args: args(list, optional): command line arguments accepted by py.test e.g. args=['-s', '-k charts'] prevents capture of standard out and only runs tests that match charts. For more py.test options see Returns: int: pytest exitcode ''' import pytest import os try: import faulthandler faulthandler.enable() except ImportError: # We can live without in python 2.7 pass # change to the bokeh python source directory, for test collection rootdir = os.path.join(os.path.dirname(__file__), os.pardir) os.chdir(rootdir) return pytest.main(args=args)
#---------------------- # For testing charts #----------------------
[docs]def create_chart(klass, values, compute_values=True, **kws): ''' Create a new chart class instance with values and the extra kws keyword parameters. Args: klass (class): chart class to be created values (iterable): chart data series compute_values (bool): if == True underlying chart attributes (e.g., data, ranges, source, etc.) are computed by calling _setup_show, _prepare_show and _show_teardown methods. **kws (refer to klass arguments specification details) Return: _chart: klass chart instance ''' _chart = klass( values, title="title", xlabel="xlabel", ylabel="ylabel", legend="top_left", xscale="linear", yscale="linear", width=800, height=600, tools=True, filename=False, server=False, notebook=False, **kws ) return _chart