52 lines
1.5 KiB
Python
52 lines
1.5 KiB
Python
import pytest
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from bonobo import Bag, JsonReader, JsonWriter, open_fs, settings
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from bonobo.constants import BEGIN, END
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from bonobo.execution.node import NodeExecutionContext
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from bonobo.util.testing import CapturingNodeExecutionContext
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def test_write_json_to_file(tmpdir):
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fs, filename = open_fs(tmpdir), 'output.json'
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writer = JsonWriter(filename, ioformat=settings.IOFORMAT_ARG0)
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context = NodeExecutionContext(writer, services={'fs': fs})
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context.start()
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context.write(BEGIN, Bag({'foo': 'bar'}), END)
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context.step()
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context.stop()
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with fs.open(filename) as fp:
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assert fp.read() == '[{"foo": "bar"}]'
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with pytest.raises(AttributeError):
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getattr(context, 'file')
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with pytest.raises(AttributeError):
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getattr(context, 'first')
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def test_read_json_from_file(tmpdir):
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fs, filename = open_fs(tmpdir), 'input.json'
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with fs.open(filename, 'w') as fp:
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fp.write('[{"x": "foo"},{"x": "bar"}]')
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reader = JsonReader(filename, ioformat=settings.IOFORMAT_ARG0)
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context = CapturingNodeExecutionContext(reader, services={'fs': fs})
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context.start()
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context.write(BEGIN, Bag(), END)
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context.step()
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context.stop()
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assert len(context.send.mock_calls) == 2
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args0, kwargs0 = context.send.call_args_list[0]
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assert len(args0) == 1 and not len(kwargs0)
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args1, kwargs1 = context.send.call_args_list[1]
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assert len(args1) == 1 and not len(kwargs1)
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assert args0[0].args[0] == {'x': 'foo'}
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assert args1[0].args[0] == {'x': 'bar'}
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