def test_version_assert(self):
# create a forecast that looks like its from a newer version
# and make sure an assertion is raised.
ds = create_data()
original_version = compress._VERSION
compress._VERSION = np.array(compress._VERSION + 1, dtype=np.uint8)
beaufort = compress.compress_dataset(ds)
compress._VERSION = original_version
self.assertRaises(ValueError,
lambda: compress.decompress_dataset(beaufort))
def main():
fcst = test_data()
fcst = compress.decompress_dataset(compress.compress_dataset(fcst))
for vn in ['current', 'wind']:
variable = query_utils.get_variable(vn)
if isinstance(variable, schemes.VelocityVariable):
interactive.InteractiveVelocity(fcst, variable)
plt.show()
def process_query(query, url=None):
"""
Takes a query and returns the corresponding tiny forecast.
"""
# log the query so debugging others request failures will be easier.
logging.debug(json.dumps(query))
# Acquires a forecast corresponding to a query
fcst = get_forecast(query, url=url)
compressed_forecast = compress.compress_dataset(fcst)
logging.debug("Compressed Size: %d" % len(compressed_forecast))
return compressed_forecast
def test_compress_dataset(self):
ds = create_data()
compressed = compress.compress_dataset(ds)
actual = compress.decompress_dataset(compressed)
np.testing.assert_allclose(actual['x_wind'].values, ds['x_wind'].values,
atol=1e-4, rtol=1e-4)
np.testing.assert_allclose(actual['y_wind'].values, ds['y_wind'].values,
atol=1e-4, rtol=1e-4)
np.testing.assert_allclose(actual['air_pressure_at_sea_level'].values,
ds['air_pressure_at_sea_level'].values,
atol=1e-4, rtol=1e-4)
# pass it through the system again, it should be idempotent.
compressed = compress.compress_dataset(ds)
actual = compress.decompress_dataset(compressed)
np.testing.assert_allclose(actual['x_wind'].values, ds['x_wind'].values,
atol=1e-4, rtol=1e-4)
np.testing.assert_allclose(actual['y_wind'].values, ds['y_wind'].values,
atol=1e-4, rtol=1e-4)
np.testing.assert_allclose(actual['air_pressure_at_sea_level'].values,
ds['air_pressure_at_sea_level'].values,
atol=1e-4, rtol=1e-4)
