getMore tests

Author: baileympearson

test/spec/client-backpressure/getMore-retried.json

@@ -156,6 +156,131 @@
           ]
         }
       ]
+    },
+    {
+      "description": "getMores are retried maxAttempts=5 times",
+      "operations": [
+        {
+          "name": "failPoint",
+          "object": "testRunner",
+          "arguments": {
+            "client": "failPointClient",
+            "failPoint": {
+              "configureFailPoint": "failCommand",
+              "mode": "alwaysOn",
+              "data": {
+                "failCommands": [
+                  "getMore"
+                ],
+                "errorLabels": [
+                  "RetryableError",
+                  "SystemOverloadedError"
+                ],
+                "errorCode": 2
+              }
+            }
+          }
+        },
+        {
+          "name": "find",
+          "arguments": {
+            "batchSize": 2,
+            "filter": {}
+          },
+          "object": "coll",
+          "expectError": {
+            "isError": true,
+            "isClientError": false
+          }
+        }
+      ],
+      "expectEvents": [
+        {
+          "client": "client0",
+          "events": [
+            {
+              "commandStartedEvent": {
+                "commandName": "find"
+              }
+            },
+            {
+              "commandSucceededEvent": {
+                "commandName": "find"
+              }
+            },
+            {
+              "commandStartedEvent": {
+                "commandName": "getMore"
+              }
+            },
+            {
+              "commandFailedEvent": {
+                "commandName": "getMore"
+              }
+            },
+            {
+              "commandStartedEvent": {
+                "commandName": "getMore"
+              }
+            },
+            {
+              "commandFailedEvent": {
+                "commandName": "getMore"
+              }
+            },
+            {
+              "commandStartedEvent": {
+                "commandName": "getMore"
+              }
+            },
+            {
+              "commandFailedEvent": {
+                "commandName": "getMore"
+              }
+            },
+            {
+              "commandStartedEvent": {
+                "commandName": "getMore"
+              }
+            },
+            {
+              "commandFailedEvent": {
+                "commandName": "getMore"
+              }
+            },
+            {
+              "commandStartedEvent": {
+                "commandName": "getMore"
+              }
+            },
+            {
+              "commandFailedEvent": {
+                "commandName": "getMore"
+              }
+            },
+            {
+              "commandStartedEvent": {
+                "commandName": "getMore"
+              }
+            },
+            {
+              "commandFailedEvent": {
+                "commandName": "getMore"
+              }
+            },
+            {
+              "commandStartedEvent": {
+                "commandName": "killCursors"
+              }
+            },
+            {
+              "commandSucceededEvent": {
+                "commandName": "killCursors"
+              }
+            }
+          ]
+        }
+      ]
     }
   ]
 }

test/spec/client-backpressure/getMore-retried.yml

@@ -43,6 +43,7 @@ tests:
 
       - name: find
         arguments:
+          # batch size of 2 with 3 docs in the collection ensures exactly one find + one getMore exhaust the cursor
           batchSize: 2
           filter: {}
           # ensure stable ordering of result documents
@@ -78,4 +79,69 @@ tests:
           - commandStartedEvent:
               commandName: getMore
           - commandSucceededEvent: 
-              commandName: getMore
+              commandName: getMore
+
+  - description: "getMores are retried maxAttempts=5 times"
+    operations:
+      - name: failPoint
+        object: testRunner
+        arguments:
+          client: *failPointClient
+          failPoint:
+            configureFailPoint: failCommand
+            mode: alwaysOn
+            data:
+              failCommands: [getMore]
+              errorLabels: [RetryableError, SystemOverloadedError]
+              errorCode: 2
+
+      - name: find
+        arguments:
+          batchSize: 2
+          filter: {}
+        object: *collection
+        expectError:
+          isError: true
+          isClientError: false
+
+    expectEvents:
+      - client: *client
+        events:
+          - commandStartedEvent:
+              commandName: find
+          - commandSucceededEvent: 
+              commandName: find
+          # first attempt
+          - commandStartedEvent:
+              commandName: getMore
+          - commandFailedEvent: 
+              commandName: getMore
+          # second attempt
+          - commandStartedEvent:
+              commandName: getMore
+          - commandFailedEvent: 
+              commandName: getMore
+          # third attempt
+          - commandStartedEvent:
+              commandName: getMore
+          - commandFailedEvent: 
+              commandName: getMore
+          # fourth attempt
+          - commandStartedEvent:
+              commandName: getMore
+          - commandFailedEvent: 
+              commandName: getMore
+          # fifth attempt
+          - commandStartedEvent:
+              commandName: getMore
+          - commandFailedEvent: 
+              commandName: getMore
+          # final attempt
+          - commandStartedEvent:
+              commandName: getMore
+          - commandFailedEvent: 
+              commandName: getMore
+          - commandStartedEvent:
+              commandName: killCursors
+          - commandSucceededEvent: 
+              commandName: killCursors