def test_error_if_using_undeclared_variable():
notebook_w_warning = """
# + tags=['parameters']
a = 1
b = 2
# +
# variable "c" is used but never declared!
a + b + c
"""
source = NotebookSource(notebook_w_warning,
ext_in='py',
kernelspec_name='python3',
static_analysis=True)
params = Params._from_dict({
'product': File('output.ipynb'),
'a': 1,
'b': 2
})
with pytest.raises(RenderError) as excinfo:
source.render(params)
assert "undefined name 'c'" in str(excinfo.value)
def test_error_if_static_analysis_on_a_non_python_nb():
source = NotebookSource(new_nb(fmt='r:light'),
ext_in='R',
static_analysis=True)
params = Params._from_dict({'product': File('output.ipynb')})
with pytest.raises(NotImplementedError):
source.render(params)
def test_removes_papermill_metadata():
source = NotebookSource(new_nb(fmt='ipynb'),
ext_in='ipynb',
kernelspec_name='python3')
params = Params._from_dict({'product': File('file.ipynb')})
source.render(params)
nb = source.nb_obj_rendered
assert all('papermill' not in cell['metadata'] for cell in nb.cells)
def test_warn_if_using_default_value():
source = NotebookSource(notebook_ab,
ext_in='py',
kernelspec_name='python3',
static_analysis=True)
params = Params._from_dict({'product': File('output.ipynb'), 'a': 1})
with pytest.warns(UserWarning) as record:
source.render(params)
assert "Missing parameters: {'b'}, will use default value" in [
str(warning.message) for warning in record
]
def test_static_analysis(hot_reload, tmp_directory):
nb = jupytext.reads(notebook_ab, fmt='py:light')
path = Path('nb.ipynb')
path.write_text(jupytext.writes(nb, fmt='ipynb'))
source = NotebookSource(path, static_analysis=True, hot_reload=hot_reload)
params = Params._from_dict({
'product': File('output.ipynb'),
'a': 1,
'b': 2
})
source.render(params)
def test_error_if_passing_undeclared_parameter():
source = NotebookSource(notebook_ab,
ext_in='py',
kernelspec_name='python3',
static_analysis=True)
params = Params._from_dict({
'product': File('output.ipynb'),
'a': 1,
'b': 2,
'c': 3
})
with pytest.raises(RenderError) as excinfo:
source.render(params)
assert str(excinfo.value) == "\nPassed non-declared parameters: {'c'}"
def test_rmd(code, tmp_directory):
# check we can initialize from Rmd files with no kernelspec metadata,
# we need this because the new_nb utility function always creates nbs
# with metadata (because it uses jupytext.writes)
path = Path('notebook.Rmd')
path.write_text(code)
source = NotebookSource(path)
assert len(source._nb_obj_unrendered.cells) == 2
def test_error_missing_params_cell_shows_path_if_available(tmp_directory):
path = Path('nb.ipynb')
path.write_text(new_nb(fmt='ipynb', add_tag=False))
with pytest.raises(SourceInitializationError) as excinfo:
NotebookSource(path)
assert ('Notebook "nb.ipynb" does not have a cell tagged "parameters"'
in str(excinfo.value))
def test_injects_parameters_on_render(nb_str, ext):
s = NotebookSource(nb_str, ext_in=ext)
params = Params._from_dict({
'some_param': 1,
'product': File('output.ipynb')
})
s.render(params)
nb = nbformat.reads(s.nb_str_rendered, as_version=nbformat.NO_CONVERT)
# cell 0: parameters
# cell 1: injected-parameters
injected = nb.cells[1]
tags = injected['metadata']['tags']
assert len(tags) == 1
assert tags[0] == 'injected-parameters'
# py 3.5 does not gurantee order, so we check them separately
assert 'some_param = 1' in injected['source']
assert 'product = "output.ipynb"' in injected['source']
def test_error_if_syntax_error():
notebook_w_error = """
# + tags=['parameters']
a = 1
b = 2
# +
if
"""
source = NotebookSource(notebook_w_error,
ext_in='py',
kernelspec_name='python3',
static_analysis=True)
params = Params._from_dict({
'product': File('output.ipynb'),
'a': 1,
'b': 2
})
with pytest.raises(RenderError) as excinfo:
source.render(params)
assert 'invalid syntax' in str(excinfo.value)
def test_read_file(nb_str, ext, expected, tmp_directory):
path = Path('nb.' + ext)
path.write_text(nb_str)
source = NotebookSource(path)
assert source._ext_in == ext
assert source.language == expected
# jupyter sets as "R" (and not "r") as the language for R notebooks
if expected == 'r':
expected_lang = expected.upper()
else:
expected_lang = expected
# most common kernels
lang2kernel = {'python': 'python3', 'r': 'ir'}
expected_kernel = lang2kernel[expected]
assert len(source._nb_obj_unrendered.cells) == 2
assert (source._nb_obj_unrendered.metadata.kernelspec.language ==
expected_lang)
assert (
source._nb_obj_unrendered.metadata.kernelspec.name == expected_kernel)
def test_parse_docstring(code, docstring):
source = NotebookSource(code, ext_in='py')
assert source.doc == docstring
def test_str():
source = NotebookSource(notebook_ab, ext_in='py')
source.render(Params._from_dict({'product':
File('path/to/file/data.csv')}))
assert str(source) == ('\na = 1\nb = 2\nproduct = None\n# Parameters'
'\nproduct = "path/to/file/data.csv"\n\na + b')
def test_repr_from_path(tmp_directory):
path = Path(tmp_directory, 'nb.py')
Path('nb.py').write_text(notebook_ab)
source = NotebookSource(path)
assert repr(source) == "NotebookSource('{}')".format(path)
def test_extract_upstream_from_parameters(code, ext, expected_up,
expected_prod):
source = NotebookSource(code, ext_in=ext)
upstream = source.extract_upstream()
assert sorted(upstream) == sorted(expected_up)
assert source.extract_product() == expected_prod
def test_repr_from_str():
source = NotebookSource(notebook_ab, ext_in='py')
assert repr(source) == 'NotebookSource(loaded from string)'
def test_kernelspec_overrides_nb_kernel_info():
source = NotebookSource(new_nb(fmt='ipynb'),
ext_in='ipynb',
kernelspec_name='ir')
assert source._nb_obj_unrendered.metadata.kernelspec.name == 'ir'
assert source._nb_obj_unrendered.metadata.kernelspec.language == 'R'
def test_error_if_kernelspec_name_is_invalid():
with pytest.raises(NoSuchKernel):
NotebookSource(new_nb(fmt='ipynb'),
ext_in='ipynb',
kernelspec_name='invalid_kernelspec')
def test_skip_kernelspec_install_check():
NotebookSource(new_nb(fmt='ipynb'),
ext_in='ipynb',
kernelspec_name='unknown_kernelspec',
check_if_kernel_installed=False)
def test_error_if_parameters_cell_doesnt_exist():
with pytest.raises(SourceInitializationError) as excinfo:
NotebookSource(new_nb(fmt='ipynb', add_tag=False), ext_in='ipynb')
assert 'Notebook does not have a cell tagged "parameters"' in str(
excinfo.value)
def test_nb_str_contains_kernel_info():
source = NotebookSource(new_nb(fmt='ipynb'), ext_in='ipynb')
nb = nbformat.reads(source._nb_str_unrendered,
as_version=nbformat.NO_CONVERT)
assert (set(
nb.metadata.kernelspec.keys()) == {'display_name', 'language', 'name'})