Unit tests for Aggregate operation

tests/Operation/AggregateTest.php

+<?php
+
+namespace MongoDB\Tests\Operation;
+
+use MongoDB\Operation\Aggregate;
+
+class AggregateTest extends TestCase
+{
+    /**
+     * @expectedException MongoDB\Exception\InvalidArgumentException
+     * @expectedExceptionMessage $pipeline is empty
+     */
+    public function testConstructorPipelineArgumentMustNotBeEmpty()
+    {
+        new Aggregate($this->getDatabaseName(), $this->getCollectionName(), array());
+    }
+
+    /**
+     * @expectedException MongoDB\Exception\InvalidArgumentException
+     * @expectedExceptionMessage $pipeline is not a list (unexpected index: "1")
+     */
+    public function testConstructorPipelineArgumentMustBeAList()
+    {
+        new Aggregate($this->getDatabaseName(), $this->getCollectionName(), array(1 => array('$match' => array('x' => 1))));
+    }
+
+    /**
+     * @expectedException MongoDB\Exception\InvalidArgumentTypeException
+     * @dataProvider provideInvalidConstructorOptions
+     */
+    public function testConstructorOptionTypeChecks(array $options)
+    {
+        new Aggregate($this->getDatabaseName(), $this->getCollectionName(), array(array('$match' => array('x' => 1))), $options);
+    }
+
+    public function provideInvalidConstructorOptions()
+    {
+        $options = array();
+
+        foreach ($this->getInvalidBooleanValues() as $value) {
+            $options[][] = array('allowDiskUse' => $value);
+        }
+
+        foreach ($this->getInvalidIntegerValues() as $value) {
+            $options[][] = array('batchSize' => $value);
+        }
+
+        foreach ($this->getInvalidIntegerValues() as $value) {
+            $options[][] = array('maxTimeMS' => $value);
+        }
+
+        foreach ($this->getInvalidBooleanValues() as $value) {
+            $options[][] = array('useCursor' => $value);
+        }
+
+        return $options;
+    }
+
+    /**
+     * @expectedException MongoDB\Exception\InvalidArgumentException
+     * @expectedExceptionMessage "batchSize" option should not be used if "useCursor" is false
+     */
+    public function testConstructorBatchSizeOptionRequiresUseCursor()
+    {
+        new Aggregate(
+            $this->getDatabaseName(),
+            $this->getCollectionName(),
+            array(array('$match' => array('x' => 1))),
+            array('batchSize' => 100, 'useCursor' => false)
+        );
+    }
+}