PYTHON-2155 Add MongoDB 4.4 to testing matrix

Author: ShaneHarvey

.evergreen/config.yml

@@ -986,6 +986,33 @@ tasks:
             TOPOLOGY: "sharded_cluster"
         - func: "run tests"
 
+    - name: "test-4.4-standalone"
+      tags: ["4.4", "standalone"]
+      commands:
+        - func: "bootstrap mongo-orchestration"
+          vars:
+            VERSION: "4.4"
+            TOPOLOGY: "server"
+        - func: "run tests"
+
+    - name: "test-4.4-replica_set"
+      tags: ["4.4", "replica_set"]
+      commands:
+        - func: "bootstrap mongo-orchestration"
+          vars:
+            VERSION: "4.4"
+            TOPOLOGY: "replica_set"
+        - func: "run tests"
+
+    - name: "test-4.4-sharded_cluster"
+      tags: ["4.4", "sharded_cluster"]
+      commands:
+        - func: "bootstrap mongo-orchestration"
+          vars:
+            VERSION: "4.4"
+            TOPOLOGY: "sharded_cluster"
+        - func: "run tests"
+
     - name: "test-latest-standalone"
       tags: ["latest", "standalone"]
       commands:
@@ -1585,6 +1612,7 @@ buildvariants:
   display_name: "${platform} ${auth-ssl}"
   tasks: &all-server-versions
     - ".latest"
+    - ".4.4"
     - ".4.2"
     - ".4.0"
     - ".3.6"
@@ -1604,6 +1632,7 @@ buildvariants:
   display_name: "Encryption ${platform} ${auth-ssl}"
   tasks: &encryption-server-versions
     - ".latest"
+    - ".4.4"
     - ".4.2"
     - ".4.0"
     - ".2.6"
@@ -1669,6 +1698,7 @@ buildvariants:
   display_name: "${platform} ${auth-ssl}"
   tasks:
     - ".latest"
+    - ".4.4"
     - ".4.2"
     - ".4.0"
     - ".3.6"
@@ -1691,6 +1721,7 @@ buildvariants:
   display_name: "${platform} ${auth} ${ssl}"
   tasks:
     - ".latest"
+    - ".4.4"
     - ".4.2"
     - ".4.0"
     - ".3.6"
@@ -1739,6 +1770,7 @@ buildvariants:
   display_name: "${platform} ${auth-ssl}"
   tasks:
     - ".latest"
+    - ".4.4"
     - ".4.2"
     - ".4.0"
     - ".3.6"
@@ -1753,6 +1785,7 @@ buildvariants:
   display_name: "${platform} ${auth-ssl}"
   tasks:
     - ".latest"
+    - ".4.4"
     - ".4.2"
   variables:
     set_xtrace_on: on
@@ -1865,6 +1898,7 @@ buildvariants:
   display_name: "${c-extensions} ${python-version} ${platform} ${auth} ${ssl} ${coverage}"
   tasks:
     - ".latest"
+    - ".4.4"
     - ".4.2"
     - ".4.0"
     - ".3.6"
@@ -1897,6 +1931,7 @@ buildvariants:
   display_name: "${compression} ${c-extensions} ${python-version} ${platform}"
   tasks:
     - "test-latest-standalone"
+    - "test-4.4-standalone"
     - "test-4.2-standalone"
   rules:
     # Server versions 3.6 and 4.0 support snappy and zlib.
@@ -1930,31 +1965,15 @@ buildvariants:
     python-version-windows: "*"
     auth-ssl: "*"
   display_name: "${platform} ${python-version-windows} ${auth-ssl}"
-  tasks:
-    - ".latest"
-    - ".4.2"
-    - ".4.0"
-    - ".3.6"
-    - ".3.4"
-    - ".3.2"
-    - ".3.0"
-    - ".2.6"
+  tasks: *all-server-versions
 
 - matrix_name: "tests-windows-python-version-32-bit"
   matrix_spec:
     platform: windows-64-vsMulti-small
     python-version-windows-32: "*"
     auth-ssl: "*"
   display_name: "${platform} ${python-version-windows-32} ${auth-ssl}"
-  tasks:
-    - ".latest"
-    - ".4.2"
-    - ".4.0"
-    - ".3.6"
-    - ".3.4"
-    - ".3.2"
-    - ".3.0"
-    - ".2.6"
+  tasks: *all-server-versions
 
 - matrix_name: "tests-python-version-requires-openssl-102-plus-test-ssl"
   matrix_spec:
@@ -1964,6 +1983,7 @@ buildvariants:
   display_name: "${python-version} OpenSSL 1.0.2 ${platform} ${auth-ssl}"
   tasks:
      - ".latest"
+     - ".4.4"
      - ".4.2"
      - ".4.0"
      - ".3.6"
@@ -2012,6 +2032,7 @@ buildvariants:
       then:
         add_tasks:
           - "test-latest-standalone"
+          - "test-4.4-standalone"
           - "test-4.2-standalone"
           - "test-4.0-standalone"
           - "test-3.6-standalone"

test/test_database.py

@@ -367,16 +367,23 @@ def test_validate_collection(self):
         self.assertTrue(db.validate_collection(db.test, scandata=True))
         self.assertTrue(db.validate_collection(db.test, scandata=True, full=True))
         self.assertTrue(db.validate_collection(db.test, True, True))
-        if client_context.version.at_least(4, 3, 3):
-            self.assertTrue(db.validate_collection(db.test, background=True))
-            self.assertTrue(db.validate_collection(db.test, background=False))
+
+    @client_context.require_version_min(4, 3, 3)
+    def test_validate_collection_background(self):
+        db = self.client.pymongo_test
+        db.test.insert_one({"dummy": u"object"})
+        coll = db.test
+        self.assertTrue(db.validate_collection(coll, background=False))
+        # The inMemory storage engine does not support background=True.
+        if client_context.storage_engine != 'inMemory':
+            self.assertTrue(db.validate_collection(coll, background=True))
             self.assertTrue(
-                db.validate_collection(db.test, scandata=True, background=True))
+                db.validate_collection(coll, scandata=True, background=True))
             # The server does not support background=True with full=True.
             # Assert that we actually send the background option by checking
             # that this combination fails.
             with self.assertRaises(OperationFailure):
-                db.validate_collection(db.test, full=True, background=True)
+                db.validate_collection(coll, full=True, background=True)
 
     @client_context.require_no_mongos
     def test_profiling_levels(self):