Files
bonobo/tests/nodes/io/test_file.py
2018-08-11 06:34:37 +02:00

46 lines
1.4 KiB
Python

import pytest
from bonobo import FileReader, FileWriter
from bonobo.constants import EMPTY
from bonobo.execution.contexts.node import NodeExecutionContext
from bonobo.util.testing import BufferingNodeExecutionContext, FilesystemTester
txt_tester = FilesystemTester('txt')
txt_tester.input_data = 'Hello\nWorld\n'
def test_file_writer_contextless(tmpdir):
fs, filename, services = txt_tester.get_services_for_writer(tmpdir)
with FileWriter(path=filename).open(fs) as fp:
fp.write('Yosh!')
with fs.open(filename) as fp:
assert fp.read() == 'Yosh!'
@pytest.mark.parametrize(
'lines,output',
[(('ACME',), 'ACME'), (('Foo', 'Bar', 'Baz'), 'Foo\nBar\nBaz')], # one line... # more than one line...
)
def test_file_writer_in_context(tmpdir, lines, output):
fs, filename, services = txt_tester.get_services_for_writer(tmpdir)
with NodeExecutionContext(FileWriter(path=filename), services=services) as context:
context.write_sync(*lines)
with fs.open(filename) as fp:
assert fp.read() == output
def test_file_reader(tmpdir):
fs, filename, services = txt_tester.get_services_for_reader(tmpdir)
with BufferingNodeExecutionContext(FileReader(path=filename), services=services) as context:
context.write_sync(EMPTY)
output = context.get_buffer()
assert len(output) == 2
assert output[0] == ('Hello',)
assert output[1] == ('World',)