memgraph/tck_engine/tests/openCypher_M05/tck/features/UnionAcceptance.feature
2017-03-14 12:52:32 +00:00

100 lines
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Gherkin

#
# Copyright 2017 "Neo Technology",
# Network Engine for Objects in Lund AB (http://neotechnology.com)
#
# Licensed 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.
#
Feature: UnionAcceptance
Scenario: Should be able to create text output from union queries
Given an empty graph
And having executed:
"""
CREATE (:A), (:B)
"""
When executing query:
"""
MATCH (a:A)
RETURN a AS a
UNION
MATCH (b:B)
RETURN b AS a
"""
Then the result should be:
| a |
| (:A) |
| (:B) |
And no side effects
Scenario: Two elements, both unique, not distinct
Given an empty graph
When executing query:
"""
RETURN 1 AS x
UNION ALL
RETURN 2 AS x
"""
Then the result should be:
| x |
| 1 |
| 2 |
And no side effects
Scenario: Two elements, both unique, distinct
Given an empty graph
When executing query:
"""
RETURN 1 AS x
UNION
RETURN 2 AS x
"""
Then the result should be:
| x |
| 1 |
| 2 |
And no side effects
Scenario: Three elements, two unique, distinct
Given an empty graph
When executing query:
"""
RETURN 2 AS x
UNION
RETURN 1 AS x
UNION
RETURN 2 AS x
"""
Then the result should be:
| x |
| 2 |
| 1 |
And no side effects
Scenario: Three elements, two unique, not distinct
Given an empty graph
When executing query:
"""
RETURN 2 AS x
UNION ALL
RETURN 1 AS x
UNION ALL
RETURN 2 AS x
"""
Then the result should be:
| x |
| 2 |
| 1 |
| 2 |
And no side effects