Google\Cloud\Tests\Snippets\Datastore\BlobTest::testToString PHP Method

    public function testToString()
    {
        $snippet = $this->snippetFromClass(Blob::class, 1);
        $snippet->addLocal('blob', $this->blob);
        $res = $snippet->invoke();
        $this->assertEquals($this->value, $res->output());
    }