Do not check modifiedCount for updates on 2.4

nModified is not provided for legacy write ops, so we should not check for it. Once PHPC-278 is implemented, we can change these assertions to check for null exactly.

tests/Collection/CrudSpec/ReplaceOneFunctionalTest.php

@@ -9,11 +9,15 @@ namespace MongoDB\Tests\Collection\CrudSpec;
  */
 class ReplaceOneFunctionalTest extends FunctionalTestCase
 {
+    private $omitModifiedCount;
+
     public function setUp()
     {
         parent::setUp();
 
         $this->createFixtures(3);
+
+        $this->omitModifiedCount = version_compare($this->getServerVersion(), '2.6.0', '<');
     }
 
     public function testReplaceOneWhenManyDocumentsMatch()
@@ -23,7 +27,7 @@ class ReplaceOneFunctionalTest extends FunctionalTestCase
 
         $result = $this->collection->replaceOne($filter, $replacement);
         $this->assertSame(1, $result->getMatchedCount());
-        $this->assertSame(1, $result->getModifiedCount());
+        $this->omitModifiedCount or $this->assertSame(1, $result->getModifiedCount());
 
         $expected = array(
             array('_id' => 1, 'x' => 11),
@@ -41,7 +45,7 @@ class ReplaceOneFunctionalTest extends FunctionalTestCase
 
         $result = $this->collection->replaceOne($filter, $replacement);
         $this->assertSame(1, $result->getMatchedCount());
-        $this->assertSame(1, $result->getModifiedCount());
+        $this->omitModifiedCount or $this->assertSame(1, $result->getModifiedCount());
 
         $expected = array(
             array('_id' => 1, 'x' => 111),
@@ -59,7 +63,7 @@ class ReplaceOneFunctionalTest extends FunctionalTestCase
 
         $result = $this->collection->replaceOne($filter, $replacement);
         $this->assertSame(0, $result->getMatchedCount());
-        $this->assertSame(0, $result->getModifiedCount());
+        $this->omitModifiedCount or $this->assertSame(0, $result->getModifiedCount());
 
         $expected = array(
             array('_id' => 1, 'x' => 11),
@@ -78,7 +82,7 @@ class ReplaceOneFunctionalTest extends FunctionalTestCase
 
         $result = $this->collection->replaceOne($filter, $replacement, $options);
         $this->assertSame(0, $result->getMatchedCount());
-        $this->assertSame(0, $result->getModifiedCount());
+        $this->omitModifiedCount or $this->assertSame(0, $result->getModifiedCount());
         $this->assertSame(4, $result->getUpsertedId());
 
         $expected = array(
@@ -100,7 +104,7 @@ class ReplaceOneFunctionalTest extends FunctionalTestCase
 
         $result = $this->collection->replaceOne($filter, $replacement, $options);
         $this->assertSame(0, $result->getMatchedCount());
-        $this->assertSame(0, $result->getModifiedCount());
+        $this->omitModifiedCount or $this->assertSame(0, $result->getModifiedCount());
         $this->assertSame(4, $result->getUpsertedId());
 
         $expected = array(

tests/Collection/CrudSpec/UpdateManyFunctionalTest.php

@@ -9,11 +9,15 @@ namespace MongoDB\Tests\Collection\CrudSpec;
  */
 class UpdateManyFunctionalTest extends FunctionalTestCase
 {
+    private $omitModifiedCount;
+
     public function setUp()
     {
         parent::setUp();
 
         $this->createFixtures(3);
+
+        $this->omitModifiedCount = version_compare($this->getServerVersion(), '2.6.0', '<');
     }
 
     public function testUpdateManyWhenManyDocumentsMatch()
@@ -23,7 +27,7 @@ class UpdateManyFunctionalTest extends FunctionalTestCase
 
         $result = $this->collection->updateMany($filter, $update);
         $this->assertSame(2, $result->getMatchedCount());
-        $this->assertSame(2, $result->getModifiedCount());
+        $this->omitModifiedCount or $this->assertSame(2, $result->getModifiedCount());
 
         $expected = array(
             array('_id' => 1, 'x' => 11),
@@ -41,7 +45,7 @@ class UpdateManyFunctionalTest extends FunctionalTestCase
 
         $result = $this->collection->updateMany($filter, $update);
         $this->assertSame(1, $result->getMatchedCount());
-        $this->assertSame(1, $result->getModifiedCount());
+        $this->omitModifiedCount or $this->assertSame(1, $result->getModifiedCount());
 
         $expected = array(
             array('_id' => 1, 'x' => 12),
@@ -59,7 +63,7 @@ class UpdateManyFunctionalTest extends FunctionalTestCase
 
         $result = $this->collection->updateMany($filter, $update);
         $this->assertSame(0, $result->getMatchedCount());
-        $this->assertSame(0, $result->getModifiedCount());
+        $this->omitModifiedCount or $this->assertSame(0, $result->getModifiedCount());
 
         $expected = array(
             array('_id' => 1, 'x' => 11),
@@ -78,7 +82,7 @@ class UpdateManyFunctionalTest extends FunctionalTestCase
 
         $result = $this->collection->updateMany($filter, $update, $options);
         $this->assertSame(0, $result->getMatchedCount());
-        $this->assertSame(0, $result->getModifiedCount());
+        $this->omitModifiedCount or $this->assertSame(0, $result->getModifiedCount());
         $this->assertSame(4, $result->getUpsertedId());
 
         $expected = array(

tests/Collection/CrudSpec/UpdateOneFunctionalTest.php

@@ -9,11 +9,15 @@ namespace MongoDB\Tests\Collection\CrudSpec;
  */
 class UpdateOneFunctionalTest extends FunctionalTestCase
 {
+    private $omitModifiedCount;
+
     public function setUp()
     {
         parent::setUp();
 
         $this->createFixtures(3);
+
+        $this->omitModifiedCount = version_compare($this->getServerVersion(), '2.6.0', '<');
     }
 
     public function testUpdateOneWhenManyDocumentsMatch()
@@ -23,7 +27,7 @@ class UpdateOneFunctionalTest extends FunctionalTestCase
 
         $result = $this->collection->updateOne($filter, $update);
         $this->assertSame(1, $result->getMatchedCount());
-        $this->assertSame(1, $result->getModifiedCount());
+        $this->omitModifiedCount or $this->assertSame(1, $result->getModifiedCount());
 
         $expected = array(
             array('_id' => 1, 'x' => 11),
@@ -41,7 +45,7 @@ class UpdateOneFunctionalTest extends FunctionalTestCase
 
         $result = $this->collection->updateOne($filter, $update);
         $this->assertSame(1, $result->getMatchedCount());
-        $this->assertSame(1, $result->getModifiedCount());
+        $this->omitModifiedCount or $this->assertSame(1, $result->getModifiedCount());
 
         $expected = array(
             array('_id' => 1, 'x' => 12),
@@ -59,7 +63,7 @@ class UpdateOneFunctionalTest extends FunctionalTestCase
 
         $result = $this->collection->updateOne($filter, $update);
         $this->assertSame(0, $result->getMatchedCount());
-        $this->assertSame(0, $result->getModifiedCount());
+        $this->omitModifiedCount or $this->assertSame(0, $result->getModifiedCount());
 
         $expected = array(
             array('_id' => 1, 'x' => 11),
@@ -78,7 +82,7 @@ class UpdateOneFunctionalTest extends FunctionalTestCase
 
         $result = $this->collection->updateOne($filter, $update, $options);
         $this->assertSame(0, $result->getMatchedCount());
-        $this->assertSame(0, $result->getModifiedCount());
+        $this->omitModifiedCount or $this->assertSame(0, $result->getModifiedCount());
         $this->assertSame(4, $result->getUpsertedId());
 
         $expected = array(

tests/FunctionalTestCase.php

@@ -3,8 +3,9 @@
 namespace MongoDB\Tests;
 
 use MongoDB\Driver\Command;
-use MongoDB\Driver\Manager;
 use MongoDB\Driver\Cursor;
+use MongoDB\Driver\Manager;
+use MongoDB\Driver\ReadPreference;
 
 abstract class FunctionalTestCase extends TestCase
 {
@@ -32,4 +33,17 @@ abstract class FunctionalTestCase extends TestCase
         $this->assertArrayHasKey('ok', $document);
         $this->assertEquals(1, $document['ok']);
     }
+
+    protected function getServerVersion(ReadPreference $readPreference = null)
+    {
+        $cursor = $this->manager->executeCommand(
+            $this->getDatabaseName(),
+            new Command(array('buildInfo' => 1)),
+            $readPreference ?: new ReadPreference(ReadPreference::RP_PRIMARY)
+        );
+
+        $document = current($cursor->toArray());
+
+        return $document['version'];
+    }
 }