| 117 | self.start() |
| 118 | |
| 119 | def start(self): |
| 120 | # Start patchin' |
| 121 | self.popen = patch("invoke.runners.Popen") |
| 122 | Popen = self.popen.start() |
| 123 | self.read = patch("os.read") |
| 124 | read = self.read.start() |
| 125 | self.sys_stdin = patch("sys.stdin", new_callable=BytesIO) |
| 126 | sys_stdin = self.sys_stdin.start() |
| 127 | # Setup mocks |
| 128 | process = Popen.return_value |
| 129 | process.returncode = self.exit |
| 130 | process.stdout.fileno.return_value = 1 |
| 131 | process.stderr.fileno.return_value = 2 |
| 132 | # If requested, mock isatty to fake out pty detection |
| 133 | if self.isatty is not None: |
| 134 | sys_stdin.isatty = Mock(return_value=self.isatty) |
| 135 | |
| 136 | def fakeread(fileno, count): |
| 137 | fd = {1: self.out_file, 2: self.err_file}[fileno] |
| 138 | return fd.read(count) |
| 139 | |
| 140 | read.side_effect = fakeread |
| 141 | # Return the Popen mock as it's sometimes wanted inside tests |
| 142 | return Popen |
| 143 | |
| 144 | def stop(self): |
| 145 | self.popen.stop() |