Google\Cloud\Tests\Storage\BucketTest::testComposeThrowsExceptionWithLessThanTwoSources PHP Method

    public function testComposeThrowsExceptionWithLessThanTwoSources()
    {
        $bucket = new Bucket($this->connection->reveal(), 'bucket');
        $bucket->compose(['file1.txt'], 'combined-files.txt');
    }