Machine: use table for list outputs(#6892)

fix: #6892

Current output of machine list is quite urgly, it is originaly used to
show configurations. In this PR, we use a new table format for it.

tests/utils/__init__.py

@@ -54,3 +54,18 @@ def clean_staging():
         )
     except FileNotFoundError:
         pass
+
+
+@contextmanager
+def console_width(console, width):
+    console_options = console.options
+    original = console_options.max_width
+    con_width = console._width
+
+    try:
+        console_options.max_width = width
+        console._width = width
+        yield
+    finally:
+        console_options.max_width = original
+        console._width = con_width