Working version of DataGridColumnsManager.py where columns can be updated

src/myfasthtml/test/matcher.py

@@ -186,8 +186,9 @@ class TestObject:
 
 
 class TestIcon(TestObject):
-  def __init__(self, name: Optional[str] = '', command=None):
-    super().__init__("div")
+  def __init__(self, name: Optional[str] = '', wrapper="div", command=None):
+    super().__init__(wrapper)
+    self.wrapper = wrapper
     self.name = snake_to_pascal(name) if (name and name[0].islower()) else name
     self.children = [
         TestObject(NotStr, s=Regex(f'<svg name="\\w+-{self.name}'))
@@ -196,7 +197,7 @@ class TestIcon(TestObject):
       self.attrs |= command.get_htmx_params()
   
   def __str__(self):
-    return f'<div><svg name="{self.name}" .../></div>'
+    return f'<{self.wrapper}><svg name="{self.name}" .../></{self.wrapper}>'
 
 
 class TestIconNotStr(TestObject):