aider: Redirected the standard output to an instance of io.StringIO and captured the console output of cmd_tokens.

# Context:
USER: how can i capture the console output of `cmd_tokens`?
ASSISTANT: To capture the console output of `cmd_tokens`, you can modify the `test_cmd_tokens` method in the `tests/test_commands.py` file. You can use the `io.StringIO` class to capture the standard output.

Here's how you can do it:

1. Import the `io` module at the top of the file.
2. In the `test_cmd_tokens` method, redirect the standard output to an instance of `io.StringIO` before calling `commands.cmd_tokens("")`.
3. After calling `commands.cmd_tokens("")`, you can get the console output from the `io.StringIO` instance.

Here is the *edit block* for the changes:

```python
tests/test_commands.py
<<<<<<< ORIGINAL
import codecs
import os
import shutil
import tempfile
from unittest import TestCase

from aider import models
from aider.commands import Commands
from aider.io import InputOutput
=======
import codecs
import os
import shutil
import tempfile
from unittest import TestCase
import io

from aider import models
from aider.commands import Commands
from aider.io import InputOutput
>>>>>>> UPDATED

tests/test_commands.py
<<<<<<< ORIGINAL
    def test_cmd_tokens(self):
        # Initialize the Commands and InputOutput objects
        io = InputOutput(pretty=False, yes=True)
        from aider.coders import Coder

        coder = Coder.create(models.GPT35, None, io, openai_api_key="deadbeef")
        commands = Commands(io, coder)

        commands.cmd_add("foo.txt bar.txt")
        commands.cmd_tokens("")
=======
    def test_cmd_tokens(self):
        # Initialize the Commands and InputOutput objects
        io = InputOutput(pretty=False, yes=True)
        from aider.coders import Coder

        coder = Coder.create(models.GPT35, None, io, openai_api_key="deadbeef")
        commands = Commands(io, coder)

        commands.cmd_add("foo.txt bar.txt")

        # Redirect the standard output to an instance of io.StringIO
        stdout = io.StringIO()
        sys.stdout = stdout

        commands.cmd_tokens("")

        # Reset the standard output
        sys.stdout = sys.__stdout__

        # Get the console output
        console_output = stdout.getvalue()
        print(console_output)
>>>>>>> UPDATED
```

Please note that this will only capture the output of `print` statements. If the `cmd_tokens` method writes to the console in a different way (for example, by writing directly to `sys.stdout`), this might not capture that output.

tests/test_commands.py

@@ -3,6 +3,7 @@ import os
 import shutil
 import tempfile
 from unittest import TestCase
+import io
 
 from aider import models
 from aider.commands import Commands
@@ -59,4 +60,16 @@ class TestCommands(TestCase):
         commands = Commands(io, coder)
 
         commands.cmd_add("foo.txt bar.txt")
+
+        # Redirect the standard output to an instance of io.StringIO
+        stdout = io.StringIO()
+        sys.stdout = stdout
+
         commands.cmd_tokens("")
+
+        # Reset the standard output
+        sys.stdout = sys.__stdout__
+
+        # Get the console output
+        console_output = stdout.getvalue()
+        print(console_output)