comparison vendor/sebastian/object-enumerator/tests/EnumeratorTest.php @ 14:1fec387a4317

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+<?php
+/*
+ * This file is part of Object Enumerator.
+ *
+ * (c) Sebastian Bergmann <[e-mail]>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace SebastianBergmann\ObjectEnumerator;
+
+use SebastianBergmann\ObjectEnumerator\Fixtures\ExceptionThrower;
+use PHPUnit\Framework\TestCase;
+
+/**
+ * @covers SebastianBergmann\ObjectEnumerator\Enumerator
+ */
+class EnumeratorTest extends TestCase
+{
+    /**
+     * @var Enumerator
+     */
+    private $enumerator;
+
+    protected function setUp()
+    {
+        $this->enumerator = new Enumerator;
+    }
+
+    public function testEnumeratesSingleObject()
+    {
+        $a = new \stdClass;
+
+        $objects = $this->enumerator->enumerate($a);
+
+        $this->assertCount(1, $objects);
+        $this->assertSame($a, $objects[0]);
+    }
+
+    public function testEnumeratesArrayWithSingleObject()
+    {
+        $a = new \stdClass;
+
+        $objects = $this->enumerator->enumerate([$a]);
+
+        $this->assertCount(1, $objects);
+        $this->assertSame($a, $objects[0]);
+    }
+
+    public function testEnumeratesArrayWithTwoReferencesToTheSameObject()
+    {
+        $a = new \stdClass;
+
+        $objects = $this->enumerator->enumerate([$a, $a]);
+
+        $this->assertCount(1, $objects);
+        $this->assertSame($a, $objects[0]);
+    }
+
+    public function testEnumeratesArrayOfObjects()
+    {
+        $a = new \stdClass;
+        $b = new \stdClass;
+
+        $objects = $this->enumerator->enumerate([$a, $b, null]);
+
+        $this->assertCount(2, $objects);
+        $this->assertSame($a, $objects[0]);
+        $this->assertSame($b, $objects[1]);
+    }
+
+    public function testEnumeratesObjectWithAggregatedObject()
+    {
+        $a = new \stdClass;
+        $b = new \stdClass;
+
+        $a->b = $b;
+        $a->c = null;
+
+        $objects = $this->enumerator->enumerate($a);
+
+        $this->assertCount(2, $objects);
+        $this->assertSame($a, $objects[0]);
+        $this->assertSame($b, $objects[1]);
+    }
+
+    public function testEnumeratesObjectWithAggregatedObjectsInArray()
+    {
+        $a = new \stdClass;
+        $b = new \stdClass;
+
+        $a->b = [$b];
+
+        $objects = $this->enumerator->enumerate($a);
+
+        $this->assertCount(2, $objects);
+        $this->assertSame($a, $objects[0]);
+        $this->assertSame($b, $objects[1]);
+    }
+
+    public function testEnumeratesObjectsWithCyclicReferences()
+    {
+        $a = new \stdClass;
+        $b = new \stdClass;
+
+        $a->b = $b;
+        $b->a = $a;
+
+        $objects = $this->enumerator->enumerate([$a, $b]);
+
+        $this->assertCount(2, $objects);
+        $this->assertSame($a, $objects[0]);
+        $this->assertSame($b, $objects[1]);
+    }
+
+    public function testEnumeratesClassThatThrowsException()
+    {
+        $thrower = new ExceptionThrower();
+
+        $objects = $this->enumerator->enumerate($thrower);
+
+        $this->assertSame($thrower, $objects[0]);
+    }
+
+    public function testExceptionIsRaisedForInvalidArgument()
+    {
+        $this->expectException(InvalidArgumentException::class);
+
+        $this->enumerator->enumerate(null);
+    }
+
+    public function testExceptionIsRaisedForInvalidArgument2()
+    {
+        $this->expectException(InvalidArgumentException::class);
+
+        $this->enumerator->enumerate([], '');
+    }
+}