add test for filtering mastermap (not working)
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etl/__init__.py
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etl/__init__.py
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from .filter_mastermap import filter_mastermap
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@ -14,20 +14,19 @@ csv.field_size_limit(sys.maxsize)
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def main(mastermap_path):
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mm_paths = sorted(glob.glob(os.path.join(mastermap_path, "*.gml.csv")))
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for mm_path in mm_paths:
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filter(mm_path)
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filter_mastermap(mm_path)
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def filter(mm_path)
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def filter_mastermap(mm_path)
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output_path = "{}.filtered.csv".format(str(mm_path).replace(".gml.csv", ""))
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output_fieldnames = ('WKT', 'fid', 'descriptiveGroup')
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# Open the input csv with all polygons, buildings and others
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with open(mm_path, 'r') as fh:
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r = csv.DictReader(fh)
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# Open a new buildings csv
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# Open a new output csv that will contain just buildings
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with open(output_path, 'w') as output_fh:
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w = csv.DictWriter(output_fh, fieldnames=output_fieldnames)
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w.writeheader()
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# Then write to the output csv buildings only
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w.writeheader()
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for line in r:
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if 'Building' in line['descriptiveGroup']:
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w.writerow(line)
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tests/test_filter.py
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tests/test_filter.py
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import pytest
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from etl import filter_mastermap
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def test_filter_mastermap():
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"""Test that MasterMap CSV can be correctly filtered to include only buildings."""
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input_file = ""
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expected_output = ""
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assert filter_mastermap(input_file) == expected_output
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