def METHOD_NAME(self):
    # Case when only base unit == exact match and powerOfTenMultiplier used as conversion
    filepath = os.path.dirname(os.path.abspath(__file__)) + "/test_data/greenbutton/example-GreenButton-data-gas-therms--3.xml"
    with open(filepath, "r", encoding="utf-8") as f:
        parser = GreenButtonParser(f)
        results = parser.data
    expectation = [
        {
            'start_time': 1299387600,
            'source_id': 'User/6150855/UsagePoint/409483/MeterReading/1/IntervalBlock/1',
            'duration': 900,
            'Meter Type': 'Natural Gas',
            'Usage Units': 'therms',
            'Usage/Quantity': 1790.0 / 10**3,
        },
        {
            'start_time': 1299388500,
            'source_id': 'User/6150855/UsagePoint/409483/MeterReading/1/IntervalBlock/1',
            'duration': 900,
            'Meter Type': 'Natural Gas',
            'Usage Units': 'therms',
            'Usage/Quantity': 1792.0 / 10**3,
        }
    ]
    self.assertEqual(results, expectation)