def test_pd_df_load():
dataset = get_dataset()
table = '%s.%s' % (dataset, 'df')
test_df = pd.DataFrame({'num1': [1, 3], 'num2': [2, 4]})
create_solid = bq_create_dataset.alias('create_solid')
load_solid = import_df_to_bq.alias('load_solid')
query_solid = bq_solid_for_queries(['SELECT num1, num2 FROM %s' % table]).alias('query_solid')
delete_solid = bq_delete_dataset.alias('delete_solid')
@solid(
input_defs=[InputDefinition('success', Nothing)], output_defs=[OutputDefinition(DataFrame)]
)
def return_df(_context): # pylint: disable=unused-argument
return test_df
config = {
'solids': {
'create_solid': {'config': {'dataset': dataset, 'exists_ok': True}},
'load_solid': {'config': {'destination': table}},
'delete_solid': {'config': {'dataset': dataset, 'delete_contents': True}},
}
}
@pipeline(mode_defs=bq_modes())
def bq_pipeline():
delete_solid(query_solid(load_solid(return_df(create_solid()))))
result = execute_pipeline(bq_pipeline, config)
assert result.success
values = result.result_for_solid('query_solid').output_value()
assert values[0].to_dict() == test_df.to_dict()
# BQ loads should throw an exception if pyarrow and fastparquet aren't available
with mock.patch.dict(sys.modules, {'pyarrow': None, 'fastparquet': None}):
with pytest.raises(DagsterExecutionStepExecutionError) as exc_info:
result = execute_pipeline(bq_pipeline, config)
assert (
'loading data to BigQuery from pandas DataFrames requires either pyarrow or fastparquet'
' to be installed' in str(exc_info.value.user_exception)
)
cleanup_config = {
'solids': {'delete_solid': {'config': {'dataset': dataset, 'delete_contents': True}}}
}
@pipeline(mode_defs=bq_modes())
def cleanup():
delete_solid()
assert execute_pipeline(cleanup, cleanup_config).success
assert not dataset_exists(dataset)
def test_pd_df_load():
dataset = get_dataset()
table = "%s.%s" % (dataset, "df")
test_df = pd.DataFrame({"num1": [1, 3], "num2": [2, 4]})
create_solid = bq_create_dataset.alias("create_solid")
load_solid = import_df_to_bq.alias("load_solid")
query_solid = bq_solid_for_queries(["SELECT num1, num2 FROM %s" % table]).alias("query_solid")
delete_solid = bq_delete_dataset.alias("delete_solid")
@solid(
input_defs=[InputDefinition("success", Nothing)], output_defs=[OutputDefinition(DataFrame)]
)
def return_df(_context): # pylint: disable=unused-argument
return test_df
config = {
"solids": {
"create_solid": {"config": {"dataset": dataset, "exists_ok": True}},
"load_solid": {"config": {"destination": table}},
"delete_solid": {"config": {"dataset": dataset, "delete_contents": True}},
}
}
@pipeline(mode_defs=bq_modes())
def bq_pipeline():
delete_solid(query_solid(load_solid(return_df(create_solid()))))
result = execute_pipeline(bq_pipeline, config)
assert result.success
values = result.result_for_solid("query_solid").output_value()
assert values[0].to_dict() == test_df.to_dict()
# BQ loads should throw an exception if pyarrow and fastparquet aren't available
with mock.patch.dict(sys.modules, {"pyarrow": None, "fastparquet": None}):
with pytest.raises(DagsterExecutionStepExecutionError) as exc_info:
result = execute_pipeline(bq_pipeline, config)
assert (
"loading data to BigQuery from pandas DataFrames requires either pyarrow or fastparquet"
" to be installed" in str(exc_info.value.user_exception)
)
cleanup_config = {
"solids": {"delete_solid": {"config": {"dataset": dataset, "delete_contents": True}}}
}
@pipeline(mode_defs=bq_modes())
def cleanup():
delete_solid()
assert execute_pipeline(cleanup, cleanup_config).success
assert not dataset_exists(dataset)
def test_pd_df_load():
dataset = get_dataset()
table = "%s.%s" % (dataset, "df")
test_df = pd.DataFrame({"num1": [1, 3], "num2": [2, 4]})
create_op = bq_create_dataset.alias("create_op")
load_op = import_df_to_bq.alias("load_op")
query_op = bq_op_for_queries(["SELECT num1, num2 FROM %s" % table]).alias("query_op")
delete_op = bq_delete_dataset.alias("delete_op")
@op(input_defs=[InputDefinition("success", Nothing)], output_defs=[OutputDefinition(DataFrame)])
def return_df(_context): # pylint: disable=unused-argument
return test_df
@job(resource_defs={"bigquery": bigquery_resource})
def bq_circle_of_life():
delete_op(query_op(load_op(return_df(create_op()))))
result = bq_circle_of_life.execute_in_process(
run_config={
"ops": {
"create_op": {"config": {"dataset": dataset, "exists_ok": True}},
"load_op": {"config": {"destination": table}},
"delete_op": {"config": {"dataset": dataset, "delete_contents": True}},
}
}
)
assert result.success
values = result.output_for_node("query_op")
assert values[0].to_dict() == test_df.to_dict()
# BQ loads should throw an exception if pyarrow and fastparquet aren't available
with mock.patch.dict(sys.modules, {"pyarrow": None, "fastparquet": None}):
with pytest.raises(DagsterExecutionStepExecutionError) as exc_info:
bq_circle_of_life.execute_in_process(
run_config={
"ops": {
"create_op": {"config": {"dataset": dataset, "exists_ok": True}},
"load_op": {"config": {"destination": table}},
"delete_op": {"config": {"dataset": dataset, "delete_contents": True}},
}
}
)
assert (
"loading data to BigQuery from pandas DataFrames requires either pyarrow or fastparquet"
" to be installed" in str(exc_info.value.user_exception)
)
@job(resource_defs={"bigquery": bigquery_resource})
def cleanup_bq():
delete_op()
result = cleanup_bq.execute_in_process(
run_config={
"ops": {"delete_op": {"config": {"dataset": dataset, "delete_contents": True}}}
}
)
assert result.success
assert not dataset_exists(dataset)
