6fe474282a
* Make `IfOperator` return the `else_expression_` in case of `NULL` * Add gql_behave tests * Add gql_behave test to specifically check for the case when the test expression itself is null
100 lines
3.9 KiB
Gherkin
100 lines
3.9 KiB
Gherkin
Feature: Case
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Scenario: Simple CASE:
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Given an empty graph
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When executing query:
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"""
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UNWIND range(1, 3) as x RETURN CASE x WHEN 2 THEN "two" END
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"""
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Then the result should be:
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| CASE x WHEN 2 THEN "two" END |
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| null |
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| 'two' |
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| null |
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Scenario: Simple CASE with ELSE:
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Given an empty graph
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When executing query:
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"""
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UNWIND range(1, 3) as x RETURN CASE x WHEN 2 THEN "two" ELSE "nottwo" END as z
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"""
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Then the result should be:
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| z |
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| 'nottwo' |
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| 'two' |
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| 'nottwo' |
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Scenario: Generic CASE:
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Given an empty graph
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When executing query:
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"""
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UNWIND range(1, 3) as x RETURN CASE WHEN x > 1 THEN "greater" END as z
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"""
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Then the result should be:
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| z |
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| null |
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| 'greater' |
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| 'greater' |
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Scenario: Generic CASE multiple matched whens:
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Given an empty graph
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When executing query:
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"""
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UNWIND range(1, 3) as x RETURN CASE WHEN x > 10 THEN 10 WHEN x > 1 THEN 1 WHEN x > 0 THEN 0 WHEN x > "mirko" THEN 1000 END as z
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"""
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Then the result should be:
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| z |
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| 0 |
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| 1 |
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| 1 |
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Scenario: Simple CASE in collect:
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Given an empty graph
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When executing query:
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"""
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UNWIND range(1, 3) as x RETURN collect(CASE x WHEN 2 THEN "two" ELSE "nottwo" END) as z
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"""
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Then the result should be:
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| z |
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| ['nottwo', 'two', 'nottwo'] |
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Scenario: Simple CASE nullcheck does not have match:
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Given an empty graph
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When executing query:
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"""
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WITH 2 AS name RETURN CASE name WHEN 3 THEN 'something went wrong' WHEN null THEN "doesn't work" ELSE 'works' END
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"""
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Then the result should be:
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| CASE name WHEN 3 THEN 'something went wrong' WHEN null THEN "doesn't work" ELSE 'works' END |
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| 'works' |
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Scenario: Simple CASE nullcheck does have match:
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Given an empty graph
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When executing query:
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"""
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WITH 2 AS name RETURN CASE name WHEN 2 THEN 'works' WHEN null THEN "doesn't work" ELSE 'something went wrong' END
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"""
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Then the result should be:
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| CASE name WHEN 2 THEN 'works' WHEN null THEN "doesn't work" ELSE 'something went wrong' END |
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| 'works' |
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Scenario: Generic CASE nullcheck does have match:
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Given an empty graph
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When executing query:
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"""
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WITH 2 AS name RETURN CASE WHEN name is NULL THEN "doesn't work" WHEN name = 2 THEN "works" ELSE "something went wrong" END
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"""
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Then the result should be:
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| CASE WHEN name is NULL THEN "doesn't work" WHEN name = 2 THEN "works" ELSE "something went wrong" END |
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| 'works' |
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Scenario: Generic CASE expression is null:
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Given an empty graph
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When executing query:
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"""
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WITH null AS name RETURN CASE name WHEN null THEN "doesn't work" WHEN 2 THEN "doesn't work" ELSE 'works' END
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"""
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Then the result should be:
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| CASE name WHEN null THEN "doesn't work" WHEN 2 THEN "doesn't work" ELSE 'works' END |
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| 'works' |
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