PHPLIB-1656: Stop testing with MongoDB 4.0 (#1693)

* Remove server version 4.0 from testing

* Remove obsolete skips and tests for MongoDB 4.0

Author: alcaeus

.evergreen/config/generate-config.php

@@ -22,7 +22,6 @@
     '5.0',
     '4.4',
     '4.2',
-    '4.0',
 ];
 
 // Server versions

.evergreen/config/generated/test-variant/lowest.yml

@@ -11,4 +11,4 @@
       - variant: "build-rhel80"
         name: "build-php-%phpVersion%-lowest"
     tasks:
-      - ".replicaset .local .4.0 !.csfle"
+      - ".replicaset .local .4.2 !.csfle"

.evergreen/config/generated/test-variant/modern-php-full.yml

@@ -12,10 +12,10 @@
       - variant: "build-debian12"
         name: "build-php-%phpVersion%"
     tasks:
-      - ".standalone .local !.csfle !.4.0 !.4.2 !.4.4 !.5.0 !.6.0"
-      - ".replicaset .local !.csfle !.4.0 !.4.2 !.4.4 !.5.0 !.6.0"
-      - ".sharded .local !.csfle !.4.0 !.4.2 !.4.4 !.5.0 !.6.0"
-      - ".loadbalanced .local !.csfle !.4.0 !.4.2 !.4.4 !.5.0 !.6.0"
+      - ".standalone .local !.csfle !.4.2 !.4.4 !.5.0 !.6.0"
+      - ".replicaset .local !.csfle !.4.2 !.4.4 !.5.0 !.6.0"
+      - ".sharded .local !.csfle !.4.2 !.4.4 !.5.0 !.6.0"
+      - ".loadbalanced .local !.csfle !.4.2 !.4.4 !.5.0 !.6.0"
       - "test_serverless_task_group"
       - "test_serverless_proxy_task_group"
       - "test-atlas-data-lake"
@@ -34,10 +34,10 @@
         name: "build-php-%phpVersion%"
     tasks:
       # Remember to add new major versions here as they are released
-      - ".standalone .local !.csfle !.4.0 !.4.2 !.4.4 !.7.0 !.8.0 !.rapid !.latest"
-      - ".replicaset .local !.csfle !.4.0 !.4.2 !.4.4 !.7.0 !.8.0 !.rapid !.latest"
-      - ".sharded .local !.csfle !.4.0 !.4.2 !.4.4 !.7.0 !.8.0 !.rapid !.latest"
-      - ".loadbalanced .local !.csfle !.4.0 !.4.2 !.4.4 !.7.0 !.8.0 !.rapid !.latest"
+      - ".standalone .local !.csfle !.4.2 !.4.4 !.7.0 !.8.0 !.rapid !.latest"
+      - ".replicaset .local !.csfle !.4.2 !.4.4 !.7.0 !.8.0 !.rapid !.latest"
+      - ".sharded .local !.csfle !.4.2 !.4.4 !.7.0 !.8.0 !.rapid !.latest"
+      - ".loadbalanced .local !.csfle !.4.2 !.4.4 !.7.0 !.8.0 !.rapid !.latest"
 
   # Test versions < 5.0
   - name: test-rhel80-php-%phpVersion%

.evergreen/config/generated/test-variant/phpc.yml

@@ -11,10 +11,10 @@
       - variant: "build-debian12"
         name: "build-php-%phpVersion%-next-stable"
     tasks:
-      - ".standalone .local !.csfle !.4.0 !.4.2 !.4.4 !.5.0 !.6.0"
-      - ".replicaset .local !.csfle !.4.0 !.4.2 !.4.4 !.5.0 !.6.0"
-      - ".sharded .local !.csfle !.4.0 !.4.2 !.4.4 !.5.0 !.6.0"
-      - ".loadbalanced .local !.csfle !.4.0 !.4.2 !.4.4 !.5.0 !.6.0"
+      - ".standalone .local !.csfle !.4.2 !.4.4 !.5.0 !.6.0"
+      - ".replicaset .local !.csfle !.4.2 !.4.4 !.5.0 !.6.0"
+      - ".sharded .local !.csfle !.4.2 !.4.4 !.5.0 !.6.0"
+      - ".loadbalanced .local !.csfle !.4.2 !.4.4 !.5.0 !.6.0"
       - "test_serverless_task_group"
       - "test_serverless_proxy_task_group"
       - "test-atlas-data-lake"
@@ -31,10 +31,10 @@
       - variant: "build-debian12"
         name: "build-php-%phpVersion%-next-minor"
     tasks:
-      - ".standalone .local !.csfle !.4.0 !.4.2 !.4.4 !.5.0 !.6.0"
-      - ".replicaset .local !.csfle !.4.0 !.4.2 !.4.4 !.5.0 !.6.0"
-      - ".sharded .local !.csfle !.4.0 !.4.2 !.4.4 !.5.0 !.6.0"
-      - ".loadbalanced .local !.csfle !.4.0 !.4.2 !.4.4 !.5.0 !.6.0"
+      - ".standalone .local !.csfle !.4.2 !.4.4 !.5.0 !.6.0"
+      - ".replicaset .local !.csfle !.4.2 !.4.4 !.5.0 !.6.0"
+      - ".sharded .local !.csfle !.4.2 !.4.4 !.5.0 !.6.0"
+      - ".loadbalanced .local !.csfle !.4.2 !.4.4 !.5.0 !.6.0"
       - "test_serverless_task_group"
       - "test_serverless_proxy_task_group"
       - "test-atlas-data-lake"

.evergreen/config/generated/test/local.yml

@@ -215,10 +215,6 @@ protected function assertSameObjectId($expectedObjectId, $actualObjectId): void
      */
     public function configureFailPoint(array|stdClass $command, ?Server $server = null): void
     {
-        if (! $this->isFailCommandSupported()) {
-            $this->markTestSkipped('failCommand is only supported on mongod >= 4.0.0 and mongos >= 4.1.5.');
-        }
-
         if (! $this->isFailCommandEnabled()) {
             $this->markTestSkipped('The enableTestCommands parameter is not enabled.');
         }
@@ -512,15 +508,7 @@ protected function skipIfTransactionsAreNotSupported(): void
         }
 
         if ($this->isShardedCluster()) {
-            if (version_compare($this->getFeatureCompatibilityVersion(), '4.2', '<')) {
-                $this->markTestSkipped('Transactions are only supported on FCV 4.2 or higher');
-            }
-
-            return;
-        }
-
-        if (version_compare($this->getFeatureCompatibilityVersion(), '4.0', '<')) {
-            $this->markTestSkipped('Transactions are only supported on FCV 4.0 or higher');
+            $this->markTestSkipped('Transactions are only supported on FCV 4.2 or higher');
         }
 
         if ($this->getServerStorageEngine() !== 'wiredTiger') {
@@ -698,16 +686,6 @@ private static function getUriWithoutMultipleMongoses(): string
         return $uri;
     }
 
-    /**
-     * Checks if the failCommand command is supported on this server version
-     */
-    private function isFailCommandSupported(): bool
-    {
-        $minVersion = $this->isShardedCluster() ? '4.1.5' : '4.0.0';
-
-        return version_compare($this->getServerVersion(), $minVersion, '>=');
-    }
-
     /**
      * Checks if the failCommand command is enabled by checking the enableTestCommands parameter
      */

.evergreen/config/templates/test-variant/lowest.yml

@@ -307,8 +307,6 @@ public function testUpdateOne($verbosity, $executionStatsExpected, $allPlansExec
 
     public function testAggregate(): void
     {
-        $this->skipIfServerVersion('<', '4.0.0', 'Explaining aggregate command requires server version >= 4.0');
-
         $this->createFixtures(3);
 
         // Use a $sort stage to ensure the aggregate does not get optimised to a query