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test_imports.py
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191 lines (171 loc) · 3.95 KB
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# Licensed to the Apache Software Foundation (ASF) under one
# or more contributor license agreements. See the NOTICE file
# distributed with this work for additional information
# regarding copyright ownership. The ASF licenses this file
# to you under the Apache License, Version 2.0 (the
# "License"); you may not use this file except in compliance
# with the License. You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing,
# software distributed under the License is distributed on an
# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
# KIND, either express or implied. See the License for the
# specific language governing permissions and limitations
# under the License.
import datafusion
import pytest
from datafusion import (
AggregateUDF,
DataFrame,
ScalarUDF,
SessionContext,
functions,
)
from datafusion.common import (
DFSchema,
)
from datafusion.expr import (
Aggregate,
AggregateFunction,
Alias,
Analyze,
Between,
BinaryExpr,
Case,
Cast,
Column,
CreateMemoryTable,
CreateView,
Distinct,
DropTable,
Exists,
Explain,
Expr,
Extension,
Filter,
GroupingSet,
ILike,
InList,
InSubquery,
IsFalse,
IsNotFalse,
IsNotNull,
IsNotTrue,
IsNotUnknown,
IsTrue,
IsUnknown,
Join,
JoinConstraint,
JoinType,
Like,
Limit,
Literal,
Negative,
Not,
Partitioning,
Placeholder,
Projection,
Repartition,
ScalarSubquery,
ScalarVariable,
SimilarTo,
Sort,
Subquery,
SubqueryAlias,
TableScan,
TryCast,
Union,
)
def test_import_datafusion():
assert datafusion.__name__ == "datafusion"
def test_datafusion_python_version():
assert datafusion.__version__ is not None
def test_class_module_is_datafusion():
# context
for klass in [
SessionContext,
]:
assert klass.__module__ == "datafusion.context"
# dataframe
for klass in [
DataFrame,
]:
assert klass.__module__ == "datafusion.dataframe"
# udf
for klass in [
AggregateUDF,
ScalarUDF,
]:
assert klass.__module__ == "datafusion.user_defined"
# expressions
for klass in [Expr, Column, Literal, BinaryExpr, AggregateFunction]:
assert klass.__module__ == "datafusion.expr"
# operators
for klass in [
Projection,
TableScan,
Aggregate,
Sort,
Limit,
Filter,
Analyze,
Join,
JoinType,
JoinConstraint,
Union,
Like,
ILike,
SimilarTo,
ScalarVariable,
Alias,
Not,
IsNotNull,
IsTrue,
IsFalse,
IsUnknown,
IsNotTrue,
IsNotFalse,
IsNotUnknown,
Negative,
InList,
Exists,
Subquery,
InSubquery,
ScalarSubquery,
GroupingSet,
Placeholder,
Case,
Cast,
TryCast,
Between,
SubqueryAlias,
Explain,
Extension,
CreateMemoryTable,
CreateView,
Distinct,
DropTable,
Repartition,
Partitioning,
]:
assert klass.__module__ == "datafusion.expr"
# schema
for klass in [DFSchema]:
assert klass.__module__ == "datafusion.common"
def test_import_from_functions_submodule():
from datafusion.functions import abs as df_abs
from datafusion.functions import sin
assert functions.abs is df_abs
assert functions.sin is sin
msg = "cannot import name 'foobar' from 'datafusion.functions'"
with pytest.raises(ImportError, match=msg):
from datafusion.functions import foobar # noqa: F401
def test_classes_are_inheritable():
class MyExecContext(SessionContext):
pass
class MyExpression(Expr):
pass
class MyDataFrame(DataFrame):
pass