Add check disk space.

.github/workflows/run-on-gpu.yml

@@ -40,6 +40,10 @@ jobs:
         run: |
           pip install -e .
 
+      - name: Check disk space
+        run: |
+          df -h
+
       - name: Run Core Functionality
         run: |
           comfy --skip-prompt --no-enable-telemetry env

comfy_cli/test_cmdline.py

@@ -0,0 +1,15 @@
+from typer.testing import CliRunner
+
+from .cmdline import app
+
+runner = CliRunner()
+
+
+def test_app():
+    result = runner.invoke(
+        app,
+        ["--here", "install", "--cpu"],
+    )
+    print("Stdout:")
+    print(result.stdout)
+    assert result.exit_code == 0