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vendor/ddeboer/data-import/tests/Reader/CountableIteratorReaderTest.php

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+<?php
+
+namespace Ddeboer\DataImport\Tests\Reader;
+
+use Ddeboer\DataImport\Reader\CountableIteratorReader;
+
+/**
+ * @author Márk Sági-Kazár <mark.sagikazar@gmail.com>
+ */
+class CountableIteratorReaderTest extends \PHPUnit_Framework_TestCase
+{
+    public function testCount()
+    {
+        $iterator = new \ArrayIterator([
+            [
+                'id'       => 1,
+                'username' => 'john.doe',
+                'name'     => 'John Doe',
+            ],
+        ]);
+
+        $reader = new CountableIteratorReader($iterator);
+
+        // We need to rewind the iterator
+        $reader->rewind();
+
+        $this->assertEquals(1, $reader->count());
+    }
+
+    public function testIteratorCount()
+    {
+        $reader = new CountableIteratorReader(new CountableIterator);
+
+        // We need to rewind the iterator
+        $reader->rewind();
+
+        $this->assertEquals(0, $reader->count());
+    }
+}
+
+class CountableIterator extends \EmptyIterator
+{
+
+}