);         $this->assertFileExists($this->tempDir.'/src.txt');     }      /** @test */     public function copies_files_and_overwrites()     {         file_put_contents($this->tempDir.'/src.txt', 'Hello World');         file_put_contents($this->tempDir.'/dest.txt', 'Existing Content');         $this->assertTrue($this->adapter->copy('src.txt', 'dest.txt', true));         $this->assertStringEqualsFile($this->tempDir.'/src.txt', 'Hello World');         $this->assertStringEqualsFile($this->tempDir.'/dest.txt', 'Hello World');     }      /** @test */     public function moves_files()     {         file_put_contents($this->tempDir.'/src.txt', 'Hello World');         $this->assertTrue($this->adapter->move('src.txt', 'dest.txt'));         $this->assertStringEqualsFile($this->tempDir.'/dest.txt', 'Hello World');         $this->assertFileNotExists($this->tempDir.'/src.txt');     }      /** @test */     public function moves_files_and_overwrites()     {         file_put_contents($this->tempDir.'/src.txt', 'Hello World');         file_put_contents($this->tempDir.'/dest.txt', 'Existing Content');         $this->assertTrue($this->adapter->move('src.txt', 'dest.txt', true));         $this->assertStringEqualsFile($this->tempDir.'/dest.txt', 'Hello World');         $this->assertFileNotExists($this->tempDir.'/src.txt');     }      /** @test */     public function 