def test_from_files(self):
filetext1 = textwrap.dedent("""\
suite foo
family bar
edit FOOBAR 5
task baz
endfamily
endsuite
""")
filetext2 = filetext1.replace("baz", "boo")
expected = [
d.context_to_string(no_labels=True)
for d in DiffList(filetext1, filetext2)._diffs
]
with tempfile.NamedTemporaryFile(mode="w+t", delete=False) as file1:
file1.write(filetext1)
file1.seek(0)
with tempfile.NamedTemporaryFile(mode="w+t",
delete=False) as file2:
file2.write(filetext2)
file2.seek(0)
actual = [
d.context_to_string(no_labels=True)
for d in DiffList.from_files(file1.name, file2.name)._diffs
]
assert expected == actual
def test_from_files_error(self):
"""
Test that the correct exception is raised when attempting to
load from a file that cannot be found.
"""
# Create an empty temporary directory:
tmpdir = tempfile.mkdtemp()
# Construct a path to a file that does not exist:
invalid_file_path = os.path.join(tmpdir, "file1.def")
# Verify that the correct exception is raised when the file is not
# found, making sure to clean up the temporary directory before the
# test exits regardless of the outcome.
try:
with pytest.raises(IOError) as excinfo:
DiffList.from_files(invalid_file_path, invalid_file_path)
expected_msg = "failed to load from file"
assert expected_msg in str(excinfo.value)
finally:
os.rmdir(tmpdir)