60 lines
1.5 KiB
JavaScript
60 lines
1.5 KiB
JavaScript
/*
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* SERVER-6127 : $project uasserts if an expected nested field has a non object parent in a document
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*
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* This test validates the SERVER-6127 ticket. Return undefined when retrieving a field along a
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* path, when the subpath does not exist (this is what happens when a field does not exist and
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* there is no path). Previous it would uassert causing the aggregation to end.
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*/
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/*
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* 1) Clear and create testing db
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* 2) Run an aggregation that simply projects a two fields, one with a sub path one without
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* 3) Assert that the result is what we expected
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*/
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// Clear db
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db.s6127.drop();
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// Populate db
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db.s6127.save({a:1});
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db.s6127.save({foo:2});
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db.s6127.save({foo:{bar:3}});
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// Aggregate checking the field foo and the path foo.bar
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var s6127 = db.runCommand(
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{ aggregate: "s6127", pipeline : [
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{ $project : {
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_id : 0,
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'foo.bar' : 1,
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field : "$foo",
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path : "$foo.bar"
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}}
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]});
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/*
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* The first document should contain nothing as neither field exists, the second document should
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* contain only field as it has a value in foo, but foo does not have a field bar so it cannot walk
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* that path, the third document should have both the field and path as foo is an object which has
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* a field bar
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*/
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var s6127result = [
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{
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},
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{
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field : 2
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},
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{
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foo : {
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bar : 3
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},
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field : {
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bar : 3
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},
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path : 3
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}
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];
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// Assert
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assert.eq(s6127.result, s6127result, 's6127 failed');
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