PHPLIB-68: Throw when accessing fields in unacknowledged write result

src/BulkWriteResult.php

@@ -2,8 +2,8 @@
 
 namespace MongoDB;
 
-use MongoDB\BSON\ObjectId;
 use MongoDB\Driver\WriteResult;
+use MongoDB\Exception\BadMethodCallException;
 
 /**
  * Result class for a bulk write operation.
@@ -12,6 +12,7 @@ class BulkWriteResult
 {
     private $writeResult;
     private $insertedIds;
+    private $isAcknowledged;
 
     /**
      * Constructor.
@@ -23,41 +24,53 @@ class BulkWriteResult
     {
         $this->writeResult = $writeResult;
         $this->insertedIds = $insertedIds;
+        $this->isAcknowledged = $writeResult->isAcknowledged();
     }
 
     /**
      * Return the number of documents that were deleted.
      *
-     * This value is undefined if the write was not acknowledged.
+     * This method should only be called if the write was acknowledged.
      *
      * @see BulkWriteResult::isAcknowledged()
      * @return integer
+     * @throws BadMethodCallException is the write result is unacknowledged
      */
     public function getDeletedCount()
     {
-        return $this->writeResult->getDeletedCount();
+        if ($this->isAcknowledged) {
+            return $this->writeResult->getDeletedCount();
+        }
+
+        throw BadMethodCallException::unacknowledgedWriteResultAccess(__METHOD__);
     }
 
     /**
      * Return the number of documents that were inserted.
      *
-     * This value is undefined if the write was not acknowledged.
+     * This method should only be called if the write was acknowledged.
      *
      * @see BulkWriteResult::isAcknowledged()
      * @return integer
+     * @throws BadMethodCallException is the write result is unacknowledged
      */
     public function getInsertedCount()
     {
-        return $this->writeResult->getInsertedCount();
+        if ($this->isAcknowledged) {
+            return $this->writeResult->getInsertedCount();
+        }
+
+        throw BadMethodCallException::unacknowledgedWriteResultAccess(__METHOD__);
     }
 
     /**
      * Return a map of the inserted documents' IDs.
      *
-     * The index of each ID in the map corresponds to the document's position
-     * in bulk operation. If the document had an ID prior to insertion (i.e. the
-     * driver did not generate an ID), this will contain its "_id" field value.
-     * Any driver-generated ID will be an MongoDB\Driver\ObjectID instance.
+     * The index of each ID in the map corresponds to the document's position in
+     * the bulk operation. If the document had an ID prior to insertion (i.e.
+     * the driver did not generate an ID), this will contain its "_id" field
+     * value. Any driver-generated ID will be an MongoDB\Driver\ObjectID
+     * instance.
      *
      * @return mixed[]
      */
@@ -69,41 +82,58 @@ class BulkWriteResult
     /**
      * Return the number of documents that were matched by the filter.
      *
-     * This value is undefined if the write was not acknowledged.
+     * This method should only be called if the write was acknowledged.
      *
      * @see BulkWriteResult::isAcknowledged()
      * @return integer
+     * @throws BadMethodCallException is the write result is unacknowledged
      */
     public function getMatchedCount()
     {
-        return $this->writeResult->getMatchedCount();
+        if ($this->isAcknowledged) {
+            return $this->writeResult->getMatchedCount();
+        }
+
+        throw BadMethodCallException::unacknowledgedWriteResultAccess(__METHOD__);
     }
 
     /**
      * Return the number of documents that were modified.
      *
-     * This value is undefined if the write was not acknowledged or if the write
-     * executed as a legacy operation instead of write command.
+     * This value is undefined (i.e. null) if the write executed as a legacy
+     * operation instead of command.
+     *
+     * This method should only be called if the write was acknowledged.
      *
      * @see BulkWriteResult::isAcknowledged()
      * @return integer|null
+     * @throws BadMethodCallException is the write result is unacknowledged
      */
     public function getModifiedCount()
     {
-        return $this->writeResult->getModifiedCount();
+        if ($this->isAcknowledged) {
+            return $this->writeResult->getModifiedCount();
+        }
+
+        throw BadMethodCallException::unacknowledgedWriteResultAccess(__METHOD__);
     }
 
     /**
      * Return the number of documents that were upserted.
      *
-     * This value is undefined if the write was not acknowledged.
+     * This method should only be called if the write was acknowledged.
      *
      * @see BulkWriteResult::isAcknowledged()
      * @return integer
+     * @throws BadMethodCallException is the write result is unacknowledged
      */
     public function getUpsertedCount()
     {
-        return $this->writeResult->getUpsertedCount();
+        if ($this->isAcknowledged) {
+            return $this->writeResult->getUpsertedCount();
+        }
+
+        throw BadMethodCallException::unacknowledgedWriteResultAccess(__METHOD__);
     }
 
     /**
@@ -114,11 +144,19 @@ class BulkWriteResult
      * server did not need to generate an ID), this will contain its "_id". Any
      * server-generated ID will be an MongoDB\Driver\ObjectID instance.
      *
+     * This method should only be called if the write was acknowledged.
+     *
+     * @see BulkWriteResult::isAcknowledged()
      * @return mixed[]
+     * @throws BadMethodCallException is the write result is unacknowledged
      */
     public function getUpsertedIds()
     {
-        return $this->writeResult->getUpsertedIds();
+        if ($this->isAcknowledged) {
+            return $this->writeResult->getUpsertedIds();
+        }
+
+        throw BadMethodCallException::unacknowledgedWriteResultAccess(__METHOD__);
     }
 
     /**
@@ -131,6 +169,6 @@ class BulkWriteResult
      */
     public function isAcknowledged()
     {
-        return $this->writeResult->isAcknowledged();
+        return $this->isAcknowledged;
     }
 }

src/DeleteResult.php

@@ -3,6 +3,7 @@
 namespace MongoDB;
 
 use MongoDB\Driver\WriteResult;
+use MongoDB\Exception\BadMethodCallException;
 
 /**
  * Result class for a delete operation.
@@ -10,6 +11,7 @@ use MongoDB\Driver\WriteResult;
 class DeleteResult
 {
     private $writeResult;
+    private $isAcknowledged;
 
     /**
      * Constructor.
@@ -19,19 +21,25 @@ class DeleteResult
     public function __construct(WriteResult $writeResult)
     {
         $this->writeResult = $writeResult;
+        $this->isAcknowledged = $writeResult->isAcknowledged();
     }
 
     /**
      * Return the number of documents that were deleted.
      *
-     * This value is undefined if the write was not acknowledged.
+     * This method should only be called if the write was acknowledged.
      *
-     * @see UpdateResult::isAcknowledged()
+     * @see DeleteResult::isAcknowledged()
      * @return integer
+     * @throws BadMethodCallException is the write result is unacknowledged
      */
     public function getDeletedCount()
     {
-        return $this->writeResult->getDeletedCount();
+        if ($this->isAcknowledged) {
+            return $this->writeResult->getDeletedCount();
+        }
+
+        throw BadMethodCallException::unacknowledgedWriteResultAccess(__METHOD__);
     }
 
     /**
@@ -44,6 +52,6 @@ class DeleteResult
      */
     public function isAcknowledged()
     {
-        return $this->writeResult->isAcknowledged();
+        return $this->isAcknowledged;
     }
 }

src/Exception/BadMethodCallException.php

@@ -4,4 +4,11 @@ namespace MongoDB\Exception;
 
 class BadMethodCallException extends \BadMethodCallException implements Exception
 {
+    /**
+     * Thrown when accessing a result field on an unacknowledged write result.
+     */
+    public static function unacknowledgedWriteResultAccess($method)
+    {
+        return new static(sprintf('%s should not be called for an unacknowledged write result', $method));
+    }
 }

src/InsertManyResult.php

@@ -3,14 +3,16 @@
 namespace MongoDB;
 
 use MongoDB\Driver\WriteResult;
+use MongoDB\Exception\BadMethodCallException;
 
 /**
- * Result class for a multi-document write operation.
+ * Result class for a multi-document insert operation.
  */
 class InsertManyResult
 {
     private $writeResult;
     private $insertedIds;
+    private $isAcknowledged;
 
     /**
      * Constructor.
@@ -22,28 +24,35 @@ class InsertManyResult
     {
         $this->writeResult = $writeResult;
         $this->insertedIds = $insertedIds;
+        $this->isAcknowledged = $writeResult->isAcknowledged();
     }
 
     /**
      * Return the number of documents that were inserted.
      *
-     * This value is undefined if the write was not acknowledged.
+     * This method should only be called if the write was acknowledged.
      *
      * @see InsertManyResult::isAcknowledged()
      * @return integer
+     * @throws BadMethodCallException is the write result is unacknowledged
      */
     public function getInsertedCount()
     {
-        return $this->writeResult->getInsertedCount();
+        if ($this->isAcknowledged) {
+            return $this->writeResult->getInsertedCount();
+        }
+
+        throw BadMethodCallException::unacknowledgedWriteResultAccess(__METHOD__);
     }
 
     /**
      * Return a map of the inserted documents' IDs.
      *
-     * The index of each ID in the map corresponds to the document's position
-     * in bulk operation. If the document had an ID prior to insertion (i.e. the
-     * driver did not generate an ID), this will contain its "_id" field value.
-     * Any driver-generated ID will be an MongoDB\Driver\ObjectID instance.
+     * The index of each ID in the map corresponds to the document's position in
+     * the bulk operation. If the document had an ID prior to insertion (i.e.
+     * the driver did not generate an ID), this will contain its "_id" field
+     * value. Any driver-generated ID will be an MongoDB\Driver\ObjectID
+     * instance.
      *
      * @return mixed[]
      */

src/InsertOneResult.php

@@ -3,6 +3,7 @@
 namespace MongoDB;
 
 use MongoDB\Driver\WriteResult;
+use MongoDB\Exception\BadMethodCallException;
 
 /**
  * Result class for a single-document insert operation.
@@ -11,6 +12,7 @@ class InsertOneResult
 {
     private $writeResult;
     private $insertedId;
+    private $isAcknowledged;
 
     /**
      * Constructor.
@@ -22,19 +24,25 @@ class InsertOneResult
     {
         $this->writeResult = $writeResult;
         $this->insertedId = $insertedId;
+        $this->isAcknowledged = $writeResult->isAcknowledged();
     }
 
     /**
      * Return the number of documents that were inserted.
      *
-     * This value is undefined if the write was not acknowledged.
+     * This method should only be called if the write was acknowledged.
      *
      * @see InsertOneResult::isAcknowledged()
      * @return integer
+     * @throws BadMethodCallException is the write result is unacknowledged
      */
     public function getInsertedCount()
     {
-        return $this->writeResult->getInsertedCount();
+        if ($this->isAcknowledged) {
+            return $this->writeResult->getInsertedCount();
+        }
+
+        throw BadMethodCallException::unacknowledgedWriteResultAccess(__METHOD__);
     }
 
     /**
@@ -57,6 +65,10 @@ class InsertOneResult
      * If the insert was not acknowledged, other fields from the WriteResult
      * (e.g. insertedCount) will be undefined.
      *
+     * If the insert was not acknowledged, other fields from the WriteResult
+     * (e.g. insertedCount) will be undefined and their getter methods should
+     * not be invoked.
+     *
      * @return boolean
      */
     public function isAcknowledged()

src/UpdateResult.php

@@ -3,6 +3,7 @@
 namespace MongoDB;
 
 use MongoDB\Driver\WriteResult;
+use MongoDB\Exception\BadMethodCallException;
 
 /**
  * Result class for an update operation.
@@ -10,6 +11,7 @@ use MongoDB\Driver\WriteResult;
 class UpdateResult
 {
     private $writeResult;
+    private $isAcknowledged;
 
     /**
      * Constructor.
@@ -19,72 +21,101 @@ class UpdateResult
     public function __construct(WriteResult $writeResult)
     {
         $this->writeResult = $writeResult;
+        $this->isAcknowledged = $writeResult->isAcknowledged();
     }
 
     /**
      * Return the number of documents that were matched by the filter.
      *
-     * This value is undefined if the write was not acknowledged.
+     * This method should only be called if the write was acknowledged.
      *
      * @see UpdateResult::isAcknowledged()
      * @return integer
+     * @throws BadMethodCallException is the write result is unacknowledged
      */
     public function getMatchedCount()
     {
-        return $this->writeResult->getMatchedCount();
+        if ($this->isAcknowledged) {
+            return $this->writeResult->getMatchedCount();
+        }
+
+        throw BadMethodCallException::unacknowledgedWriteResultAccess(__METHOD__);
     }
 
     /**
      * Return the number of documents that were modified.
      *
-     * This value is undefined if the write was not acknowledged or if the write
-     * executed as a legacy operation instead of write command.
+     * This value is undefined (i.e. null) if the write executed as a legacy
+     * operation instead of command.
+     *
+     * This method should only be called if the write was acknowledged.
      *
      * @see UpdateResult::isAcknowledged()
-     * @return integer
+     * @return integer|null
+     * @throws BadMethodCallException is the write result is unacknowledged
      */
     public function getModifiedCount()
     {
-        return $this->writeResult->getModifiedCount();
+        if ($this->isAcknowledged) {
+            return $this->writeResult->getModifiedCount();
+        }
+
+        throw BadMethodCallException::unacknowledgedWriteResultAccess(__METHOD__);
     }
 
     /**
      * Return the number of documents that were upserted.
      *
-     * This value is undefined if the write was not acknowledged.
+     * This method should only be called if the write was acknowledged.
      *
      * @see UpdateResult::isAcknowledged()
      * @return integer
+     * @throws BadMethodCallException is the write result is unacknowledged
      */
     public function getUpsertedCount()
     {
-        return $this->writeResult->getUpsertedCount();
+        if ($this->isAcknowledged) {
+            return $this->writeResult->getUpsertedCount();
+        }
+
+        throw BadMethodCallException::unacknowledgedWriteResultAccess(__METHOD__);
     }
 
     /**
      * Return the ID of the document inserted by an upsert operation.
      *
-     * This value is undefined if an upsert did not take place.
+     * This value is undefined (i.e. null) if an upsert did not take place.
+     *
+     * This method should only be called if the write was acknowledged.
      *
+     * @see UpdateResult::isAcknowledged()
      * @return mixed|null
+     * @throws BadMethodCallException is the write result is unacknowledged
      */
     public function getUpsertedId()
     {
-        foreach ($this->writeResult->getUpsertedIds() as $id) {
-            return $id;
+        if ($this->isAcknowledged) {
+            foreach ($this->writeResult->getUpsertedIds() as $id) {
+               return $id;
+            }
+
+            return null;
         }
+
+        throw BadMethodCallException::unacknowledgedWriteResultAccess(__METHOD__);
     }
 
     /**
      * Return whether this update was acknowledged by the server.
      *
      * If the update was not acknowledged, other fields from the WriteResult
-     * (e.g. matchedCount) will be undefined.
+     * (e.g. matchedCount) will be undefined and their getter methods should not
+     * be invoked.
      *
      * @return boolean
      */
     public function isAcknowledged()
     {
-        return $this->writeResult->isAcknowledged();
+        return $this->isAcknowledged;
     }
 }

tests/Operation/BulkWriteFunctionalTest.php

@@ -2,7 +2,9 @@
 
 namespace MongoDB\Tests\Collection;
 
+use MongoDB\BulkWriteResult;
 use MongoDB\Driver\BulkWrite as Bulk;
+use MongoDB\Driver\WriteConcern;
 use MongoDB\Operation\BulkWrite;
 
 class BulkWriteFunctionalTest extends FunctionalTestCase
@@ -135,6 +137,78 @@ class BulkWriteFunctionalTest extends FunctionalTestCase
         $this->assertSameDocuments($expected, $this->collection->find());
     }
 
+    public function testUnacknowledgedWriteConcern()
+    {
+        $ops = [['insertOne' => [['_id' => 1]]]];
+        $options = ['writeConcern' => new WriteConcern(0)];
+        $operation = new BulkWrite($this->getDatabaseName(), $this->getCollectionName(), $ops, $options);
+        $result = $operation->execute($this->getPrimaryServer());
+
+        $this->assertFalse($result->isAcknowledged());
+
+        return $result;
+    }
+
+    /**
+     * @depends testUnacknowledgedWriteConcern
+     * @expectedException MongoDB\Exception\BadMethodCallException
+     * @expectedExceptionMessageRegExp /[\w:\\]+ should not be called for an unacknowledged write result/
+     */
+    public function testUnacknowledgedWriteConcernAccessesDeletedCount(BulkWriteResult $result)
+    {
+        $result->getDeletedCount();
+    }
+
+    /**
+     * @depends testUnacknowledgedWriteConcern
+     * @expectedException MongoDB\Exception\BadMethodCallException
+     * @expectedExceptionMessageRegExp /[\w:\\]+ should not be called for an unacknowledged write result/
+     */
+    public function testUnacknowledgedWriteConcernAccessesInsertCount(BulkWriteResult $result)
+    {
+        $result->getInsertedCount();
+    }
+
+    /**
+     * @depends testUnacknowledgedWriteConcern
+     * @expectedException MongoDB\Exception\BadMethodCallException
+     * @expectedExceptionMessageRegExp /[\w:\\]+ should not be called for an unacknowledged write result/
+     */
+    public function testUnacknowledgedWriteConcernAccessesMatchedCount(BulkWriteResult $result)
+    {
+        $result->getMatchedCount();
+    }
+
+    /**
+     * @depends testUnacknowledgedWriteConcern
+     * @expectedException MongoDB\Exception\BadMethodCallException
+     * @expectedExceptionMessageRegExp /[\w:\\]+ should not be called for an unacknowledged write result/
+     */
+    public function testUnacknowledgedWriteConcernAccessesModifiedCount(BulkWriteResult $result)
+    {
+        $result->getModifiedCount();
+    }
+
+    /**
+     * @depends testUnacknowledgedWriteConcern
+     * @expectedException MongoDB\Exception\BadMethodCallException
+     * @expectedExceptionMessageRegExp /[\w:\\]+ should not be called for an unacknowledged write result/
+     */
+    public function testUnacknowledgedWriteConcernAccessesUpsertedCount(BulkWriteResult $result)
+    {
+        $result->getUpsertedCount();
+    }
+
+    /**
+     * @depends testUnacknowledgedWriteConcern
+     * @expectedException MongoDB\Exception\BadMethodCallException
+     * @expectedExceptionMessageRegExp /[\w:\\]+ should not be called for an unacknowledged write result/
+     */
+    public function testUnacknowledgedWriteConcernAccessesUpsertedIds(BulkWriteResult $result)
+    {
+        $result->getUpsertedIds();
+    }
+
     /**
      * @expectedException MongoDB\Exception\InvalidArgumentException
      * @expectedExceptionMessage Unknown operation type "foo" in $operations[0]

tests/Operation/DeleteFunctionalTest.php

@@ -2,7 +2,9 @@
 
 namespace MongoDB\Tests\Collection;
 
+use MongoDB\DeleteResult;
 use MongoDB\Driver\BulkWrite;
+use MongoDB\Driver\WriteConcern;
 use MongoDB\Operation\Delete;
 
 class DeleteFunctionalTest extends FunctionalTestCase
@@ -46,6 +48,29 @@ class DeleteFunctionalTest extends FunctionalTestCase
         $this->assertSameDocuments($expected, $this->collection->find());
     }
 
+    public function testUnacknowledgedWriteConcern()
+    {
+        $filter = ['_id' => 1];
+        $options = ['writeConcern' => new WriteConcern(0)];
+
+        $operation = new Delete($this->getDatabaseName(), $this->getCollectionName(), $filter, 0, $options);
+        $result = $operation->execute($this->getPrimaryServer());
+
+        $this->assertFalse($result->isAcknowledged());
+
+        return $result;
+    }
+
+    /**
+     * @depends testUnacknowledgedWriteConcern
+     * @expectedException MongoDB\Exception\BadMethodCallException
+     * @expectedExceptionMessageRegExp /[\w:\\]+ should not be called for an unacknowledged write result/
+     */
+    public function testUnacknowledgedWriteConcernAccessesDeletedCount(DeleteResult $result)
+    {
+        $result->getDeletedCount();
+    }
+
     /**
      * Create data fixtures.
      *

tests/Operation/InsertManyFunctionalTest.php

@@ -2,6 +2,8 @@
 
 namespace MongoDB\Tests\Collection;
 
+use MongoDB\InsertManyResult;
+use MongoDB\Driver\WriteConcern;
 use MongoDB\Operation\InsertMany;
 
 class InsertManyFunctionalTest extends FunctionalTestCase
@@ -33,4 +35,35 @@ class InsertManyFunctionalTest extends FunctionalTestCase
 
         $this->assertSameDocuments($expected, $this->collection->find());
     }
+
+    public function testUnacknowledgedWriteConcern()
+    {
+        $documents = [['x' => 11]];
+        $options = ['writeConcern' => new WriteConcern(0)];
+
+        $operation = new InsertMany($this->getDatabaseName(), $this->getCollectionName(), $documents, $options);
+        $result = $operation->execute($this->getPrimaryServer());
+
+        $this->assertFalse($result->isAcknowledged());
+
+        return $result;
+    }
+
+    /**
+     * @depends testUnacknowledgedWriteConcern
+     * @expectedException MongoDB\Exception\BadMethodCallException
+     * @expectedExceptionMessageRegExp /[\w:\\]+ should not be called for an unacknowledged write result/
+     */
+    public function testUnacknowledgedWriteConcernAccessesInsertedCount(InsertManyResult $result)
+    {
+        $result->getInsertedCount();
+    }
+
+    /**
+     * @depends testUnacknowledgedWriteConcern
+     */
+    public function testUnacknowledgedWriteConcernAccessesInsertedId(InsertManyResult $result)
+    {
+        $this->assertInstanceOf('MongoDB\BSON\ObjectId', $result->getInsertedIds()[0]);
+    }
 }

tests/Operation/InsertOneFunctionalTest.php

@@ -2,6 +2,8 @@
 
 namespace MongoDB\Tests\Collection;
 
+use MongoDB\InsertOneResult;
+use MongoDB\Driver\WriteConcern;
 use MongoDB\Operation\InsertOne;
 
 class InsertOneFunctionalTest extends FunctionalTestCase
@@ -41,4 +43,35 @@ class InsertOneFunctionalTest extends FunctionalTestCase
 
         $this->assertSameDocuments($expected, $this->collection->find());
     }
+
+    public function testUnacknowledgedWriteConcern()
+    {
+        $document = ['x' => 11];
+        $options = ['writeConcern' => new WriteConcern(0)];
+
+        $operation = new InsertOne($this->getDatabaseName(), $this->getCollectionName(), $document, $options);
+        $result = $operation->execute($this->getPrimaryServer());
+
+        $this->assertFalse($result->isAcknowledged());
+
+        return $result;
+    }
+
+    /**
+     * @depends testUnacknowledgedWriteConcern
+     * @expectedException MongoDB\Exception\BadMethodCallException
+     * @expectedExceptionMessageRegExp /[\w:\\]+ should not be called for an unacknowledged write result/
+     */
+    public function testUnacknowledgedWriteConcernAccessesInsertedCount(InsertOneResult $result)
+    {
+        $result->getInsertedCount();
+    }
+
+    /**
+     * @depends testUnacknowledgedWriteConcern
+     */
+    public function testUnacknowledgedWriteConcernAccessesInsertedId(InsertOneResult $result)
+    {
+        $this->assertInstanceOf('MongoDB\BSON\ObjectId', $result->getInsertedId());
+    }
 }

tests/Operation/UpdateFunctionalTest.php

@@ -2,7 +2,9 @@
 
 namespace MongoDB\Tests\Collection;
 
+use MongoDB\UpdateResult;
 use MongoDB\Driver\BulkWrite;
+use MongoDB\Driver\WriteConcern;
 use MongoDB\Operation\Update;
 
 class UpdateFunctionalTest extends FunctionalTestCase
@@ -121,6 +123,59 @@ class UpdateFunctionalTest extends FunctionalTestCase
         $this->assertSameDocuments($expected, $this->collection->find());
     }
 
+    public function testUnacknowledgedWriteConcern()
+    {
+        $filter = ['_id' => 1];
+        $update = ['$set' => ['x' => 1]];
+        $options = ['writeConcern' => new WriteConcern(0)];
+        $operation = new Update($this->getDatabaseName(), $this->getCollectionName(), $filter, $update, $options);
+        $result = $operation->execute($this->getPrimaryServer());
+
+        $this->assertFalse($result->isAcknowledged());
+
+        return $result;
+    }
+
+    /**
+     * @depends testUnacknowledgedWriteConcern
+     * @expectedException MongoDB\Exception\BadMethodCallException
+     * @expectedExceptionMessageRegExp /[\w:\\]+ should not be called for an unacknowledged write result/
+     */
+    public function testUnacknowledgedWriteConcernAccessesMatchedCount(UpdateResult $result)
+    {
+        $result->getMatchedCount();
+    }
+
+    /**
+     * @depends testUnacknowledgedWriteConcern
+     * @expectedException MongoDB\Exception\BadMethodCallException
+     * @expectedExceptionMessageRegExp /[\w:\\]+ should not be called for an unacknowledged write result/
+     */
+    public function testUnacknowledgedWriteConcernAccessesModifiedCount(UpdateResult $result)
+    {
+        $result->getModifiedCount();
+    }
+
+    /**
+     * @depends testUnacknowledgedWriteConcern
+     * @expectedException MongoDB\Exception\BadMethodCallException
+     * @expectedExceptionMessageRegExp /[\w:\\]+ should not be called for an unacknowledged write result/
+     */
+    public function testUnacknowledgedWriteConcernAccessesUpsertedCount(UpdateResult $result)
+    {
+        $result->getUpsertedCount();
+    }
+
+    /**
+     * @depends testUnacknowledgedWriteConcern
+     * @expectedException MongoDB\Exception\BadMethodCallException
+     * @expectedExceptionMessageRegExp /[\w:\\]+ should not be called for an unacknowledged write result/
+     */
+    public function testUnacknowledgedWriteConcernAccessesUpsertedId(UpdateResult $result)
+    {
+        $result->getUpsertedId();
+    }
+
     /**
      * Create data fixtures.
      *