Merge pull request #48

src/Database.php

@@ -92,6 +92,32 @@ class Database
         return $this->databaseName;
     }
 
+    /**
+     * Execute a command on this database.
+     *
+     * @param array|object        $command        Command document
+     * @param ReadPreference|null $readPreference Read preference
+     * @return Cursor
+     */
+    public function command($command, ReadPreference $readPreference = null)
+    {
+        if ( ! is_array($command) && ! is_object($command)) {
+            throw new InvalidArgumentTypeException('$command', $command, 'array or object');
+        }
+
+        if ( ! $command instanceof Command) {
+            $command = new Command($command);
+        }
+
+        if ( ! isset($readPreference)) {
+            $readPreference = $this->readPreference;
+        }
+
+        $server = $this->manager->selectServer($readPreference);
+
+        return $server->executeCommand($this->databaseName, $command);
+    }
+
     /**
      * Create a new collection explicitly.
      *

tests/Database/DatabaseFunctionalTest.php

@@ -64,6 +64,29 @@ class DatabaseFunctionalTest extends FunctionalTestCase
         $this->assertEquals($this->getDatabaseName(), $this->database->getDatabaseName());
     }
 
+    public function testCommand()
+    {
+        $command = ['isMaster' => 1];
+        $readPreference = new ReadPreference(ReadPreference::RP_PRIMARY);
+        $cursor = $this->database->command($command, $readPreference);
+
+        $this->assertInstanceOf('MongoDB\Driver\Cursor', $cursor);
+        $commandResult = current($cursor->toArray());
+
+        $this->assertCommandSucceeded($commandResult);
+        $this->assertTrue(isset($commandResult->ismaster));
+        $this->assertTrue($commandResult->ismaster);
+    }
+
+    /**
+     * @expectedException MongoDB\Exception\InvalidArgumentTypeException
+     * @dataProvider provideInvalidDocumentValues
+     */
+    public function testCommandCommandArgumentTypeCheck($command)
+    {
+        $this->database->command($command);
+    }
+
     public function testDrop()
     {
         $bulkWrite = new BulkWrite();

tests/Operation/BulkWriteTest.php

@@ -341,6 +341,11 @@ class BulkWriteTest extends TestCase
         );
     }
 
+    public function provideInvalidBooleanValues()
+    {
+        return $this->wrapValuesForDataProvider($this->getInvalidBooleanValues());
+    }
+
     public function provideInvalidConstructorOptions()
     {
         $options = [];

tests/Operation/TestCase.php

@@ -3,50 +3,10 @@
 namespace MongoDB\Tests\Operation;
 
 use MongoDB\Tests\TestCase as BaseTestCase;
-use stdClass;
 
 /**
  * Base class for Operation unit tests.
  */
 abstract class TestCase extends BaseTestCase
 {
-    public function provideInvalidDocumentValues()
-    {
-        return $this->wrapValuesForDataProvider($this->getInvalidDocumentValues());
-    }
-
-    public function provideInvalidBooleanValues()
-    {
-        return $this->wrapValuesForDataProvider($this->getInvalidBooleanValues());
-    }
-
-    protected function getInvalidArrayValues()
-    {
-        return [123, 3.14, 'foo', true, new stdClass];
-    }
-
-    protected function getInvalidBooleanValues()
-    {
-        return [123, 3.14, 'foo', [], new stdClass];
-    }
-
-    protected function getInvalidDocumentValues()
-    {
-        return [123, 3.14, 'foo', true];
-    }
-
-    protected function getInvalidIntegerValues()
-    {
-        return [3.14, 'foo', true, [], new stdClass];
-    }
-
-    protected function getInvalidStringValues()
-    {
-        return [123, 3.14, true, [], new stdClass];
-    }
-
-    protected function wrapValuesForDataProvider(array $values)
-    {
-        return array_map(function($value) { return [$value]; }, $values);
-    }
 }

tests/TestCase.php

@@ -7,6 +7,11 @@ use stdClass;
 
 abstract class TestCase extends \PHPUnit_Framework_TestCase
 {
+    public function provideInvalidDocumentValues()
+    {
+        return $this->wrapValuesForDataProvider($this->getInvalidDocumentValues());
+    }
+
     /**
      * Return the test collection name.
      *
@@ -29,11 +34,71 @@ abstract class TestCase extends \PHPUnit_Framework_TestCase
         return getenv('MONGODB_DATABASE') ?: 'phplib_test';
     }
 
+    /**
+     * Return a list of invalid array values.
+     *
+     * @return array
+     */
+    protected function getInvalidArrayValues()
+    {
+        return [123, 3.14, 'foo', true, new stdClass];
+    }
+
+    /**
+     * Return a list of invalid boolean values.
+     *
+     * @return array
+     */
+    protected function getInvalidBooleanValues()
+    {
+        return [123, 3.14, 'foo', [], new stdClass];
+    }
+
+    /**
+     * Return a list of invalid document values.
+     *
+     * @return array
+     */
+    protected function getInvalidDocumentValues()
+    {
+        return [123, 3.14, 'foo', true];
+    }
+
+    /**
+     * Return a list of invalid integer values.
+     *
+     * @return array
+     */
+    protected function getInvalidIntegerValues()
+    {
+        return [3.14, 'foo', true, [], new stdClass];
+    }
+
+    /**
+     * Return a list of invalid ReadPreference values.
+     *
+     * @return array
+     */
     protected function getInvalidReadPreferenceValues()
     {
         return [123, 3.14, 'foo', true, [], new stdClass];
     }
 
+    /**
+     * Return a list of invalid string values.
+     *
+     * @return array
+     */
+    protected function getInvalidStringValues()
+    {
+        return [123, 3.14, true, [], new stdClass];
+    }
+
+    /**
+     * Return a list of invalid WriteConcern values.
+     *
+     * @return array
+     */
     protected function getInvalidWriteConcernValues()
     {
         return [123, 3.14, 'foo', true, [], new stdClass];
@@ -58,4 +123,15 @@ abstract class TestCase extends \PHPUnit_Framework_TestCase
     {
         return getenv('MONGODB_URI') ?: 'mongodb://127.0.0.1:27017';
     }
+
+    /**
+     * Wrap a list of values for use as a single-argument data provider.
+     *
+     * @param array $values List of values
+     * @return array
+     */
+    protected function wrapValuesForDataProvider(array $values)
+    {
+        return array_map(function($value) { return [$value]; }, $values);
+    }
 }