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# Test that setting a default write concern does not add a write concern
# to the command sent over the wire.
# Test operations that require 3.4+ server, where all commands started
# to accept a write concern.
data:
- {_id: 1, x: 11}
- {_id: 2, x: 22}
collection_name: &collection_name default_write_concern_coll
database_name: &database_name default_write_concern_db
runOn:
- minServerVersion: "3.4"
tests:
- description: Aggregate with $out omits default write concern
operations:
- object: collection
collectionOptions: {writeConcern: {}}
name: aggregate
arguments:
pipeline: &out_pipeline
- $match: {_id: {$gt: 1}}
- $out: &other_collection_name "other_collection_name"
outcome:
collection:
name: *other_collection_name
data:
- {_id: 2, x: 22}
expectations:
- command_started_event:
command:
aggregate: *collection_name
pipeline: *out_pipeline
writeConcern: null
- description: RunCommand with a write command omits default write concern (runCommand should never inherit write concern)
operations:
- object: database
databaseOptions: {writeConcern: {}}
name: runCommand
command_name: delete
arguments:
command:
delete: *collection_name
deletes:
- {q: {}, limit: 1}
expectations:
- command_started_event:
command:
delete: *collection_name
deletes:
- {q: {}, limit: 1}
writeConcern: null
- description: CreateIndex and dropIndex omits default write concern
operations:
- object: collection
collectionOptions: {writeConcern: {}}
name: createIndex
arguments:
keys: {x: 1}
- object: collection
collectionOptions: {writeConcern: {}}
name: dropIndex
arguments:
name: x_1
expectations:
- command_started_event:
command:
createIndexes: *collection_name
indexes:
- name: x_1
key: {x: 1}
writeConcern: null
- command_started_event:
command:
dropIndexes: *collection_name
index: x_1
writeConcern: null
- description: MapReduce omits default write concern
operations:
- name: mapReduce
object: collection
collectionOptions: {writeConcern: {}}
arguments:
map: { $code: 'function inc() { return emit(0, this.x + 1) }' }
reduce: { $code: 'function sum(key, values) { return values.reduce((acc, x) => acc + x); }' }
out: { inline: 1 }
expectations:
- command_started_event:
command:
mapReduce: *collection_name
map: { $code: 'function inc() { return emit(0, this.x + 1) }' }
reduce: { $code: 'function sum(key, values) { return values.reduce((acc, x) => acc + x); }' }
out: { inline: 1 }
writeConcern: null
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