mongo-python-driver/test/unified-test-format/valid-pass/expectedEventsForClient-topologyDescriptionChangedEvent.json

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{
"description": "expectedEventsForClient-topologyDescriptionChangedEvent",
"schemaVersion": "1.20",
"runOnRequirements": [
{
"topologies": [
"replicaset"
],
"minServerVersion": "4.4"
}
],
"tests": [
{
"description": "can assert on values of newDescription and previousDescription fields",
"operations": [
{
"name": "createEntities",
"object": "testRunner",
"arguments": {
"entities": [
{
"client": {
"id": "client",
"uriOptions": {
"directConnection": true
},
"observeEvents": [
"topologyDescriptionChangedEvent"
]
}
}
]
}
},
{
"name": "waitForEvent",
"object": "testRunner",
"arguments": {
"client": "client",
"event": {
"topologyDescriptionChangedEvent": {}
},
"count": 1
}
}
],
"expectEvents": [
{
"client": "client",
"eventType": "sdam",
"ignoreExtraEvents": true,
"events": [
{
"topologyDescriptionChangedEvent": {
"previousDescription": {
"type": "Unknown"
},
"newDescription": {
"type": "Single"
}
}
}
]
}
]
}
]
}