118 lines
3.1 KiB
Python
118 lines
3.1 KiB
Python
from contextlib import closing
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from io import StringIO
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import os
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import unittest
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from saucebrush.emitters import (
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DebugEmitter,
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CSVEmitter,
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CountEmitter,
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SqliteEmitter,
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SqlDumpEmitter,
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)
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class EmitterTestCase(unittest.TestCase):
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def test_debug_emitter(self):
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with closing(StringIO()) as output:
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de = DebugEmitter(output)
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list(de.attach([1, 2, 3]))
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self.assertEqual(output.getvalue(), "1\n2\n3\n")
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def test_count_emitter(self):
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# values for test
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values = [
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1,
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2,
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3,
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4,
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5,
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6,
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7,
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8,
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9,
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10,
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11,
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12,
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13,
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14,
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15,
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16,
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17,
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18,
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19,
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20,
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21,
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22,
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]
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with closing(StringIO()) as output:
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# test without of parameter
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ce = CountEmitter(every=10, outfile=output, format="%(count)s records\n")
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list(ce.attach(values))
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self.assertEqual(output.getvalue(), "10 records\n20 records\n")
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ce.done()
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self.assertEqual(output.getvalue(), "10 records\n20 records\n22 records\n")
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with closing(StringIO()) as output:
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# test with of parameter
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ce = CountEmitter(every=10, outfile=output, of=len(values))
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list(ce.attach(values))
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self.assertEqual(output.getvalue(), "10 of 22\n20 of 22\n")
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ce.done()
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self.assertEqual(output.getvalue(), "10 of 22\n20 of 22\n22 of 22\n")
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def test_csv_emitter(self):
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try:
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import cStringIO # if Python 2.x then use old cStringIO
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io = cStringIO.StringIO()
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except Exception:
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io = StringIO() # if Python 3.x then use StringIO
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with closing(io) as output:
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ce = CSVEmitter(output, ("x", "y", "z"))
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list(ce.attach([{"x": 1, "y": 2, "z": 3}, {"x": 5, "y": 5, "z": 5}]))
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self.assertEqual(output.getvalue(), "x,y,z\r\n1,2,3\r\n5,5,5\r\n")
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def test_sqlite_emitter(self):
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import sqlite3
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import tempfile
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with closing(tempfile.NamedTemporaryFile(suffix=".db")) as f:
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db_path = f.name
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sle = SqliteEmitter(db_path, "testtable", fieldnames=("a", "b", "c"))
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list(sle.attach([{"a": "1", "b": "2", "c": "3"}]))
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sle.done()
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with closing(sqlite3.connect(db_path)) as conn:
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cur = conn.cursor()
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cur.execute("""SELECT a, b, c FROM testtable""")
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results = cur.fetchall()
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os.unlink(db_path)
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self.assertEqual(results, [("1", "2", "3")])
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def test_sql_dump_emitter(self):
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with closing(StringIO()) as bffr:
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sde = SqlDumpEmitter(bffr, "testtable", ("a", "b"))
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list(sde.attach([{"a": 1, "b": "2"}]))
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sde.done()
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self.assertEqual(
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bffr.getvalue(), "INSERT INTO `testtable` (`a`,`b`) VALUES (1,'2');\n"
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)
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if __name__ == "__main__":
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unittest.main()
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