def test_jut_run_emit_to_json(self):
        process = jut('run',
                      'emit -from :2014-01-01T00:00:00.000Z: -limit 5')
        process.expect_status(0)
        points = json.loads(process.read_output())
        process.expect_eof()

        self.assertEqual(points,
                         [
                             {'time': '2014-01-01T00:00:00.000Z'},
                             {'time': '2014-01-01T00:00:01.000Z'},
                             {'time': '2014-01-01T00:00:02.000Z'},
                             {'time': '2014-01-01T00:00:03.000Z'},
                             {'time': '2014-01-01T00:00:04.000Z'}
                         ])
return first three characters
dataset/ETHPy150Open jut-io/jut-python-tools/tests/jut_run_tests.py/JutRunTests.test_jut_run_emit_to_json--crossover with--dataset/ETHPy150Open datamade/dedupe/dedupe/predicates.py/sameThreeCharStartPredicate