
PASS Comment.before() without any argument. 
PASS Comment.before() with null as an argument. 
PASS Comment.before() with undefined as an argument. 
PASS Comment.before() with the empty string as an argument. 
PASS Comment.before() with only text as an argument. 
PASS Comment.before() with only one element as an argument. 
PASS Comment.before() with one element and text as arguments. 
PASS Comment.before() with context object itself as the argument. 
PASS Comment.before() with context object itself and node as the arguments, switching positions. 
PASS Comment.before() with all siblings of child as arguments. 
PASS Comment.before() with some siblings of child as arguments; no changes in tree; viable sibling is first child. 
PASS Comment.before() with some siblings of child as arguments; no changes in tree. 
PASS Comment.before() when pre-insert behaves like prepend. 
PASS Comment.before() with one sibling of child and text as arguments. 
PASS Comment.before() on a child without any parent. 
PASS Element.before() without any argument. 
PASS Element.before() with null as an argument. 
PASS Element.before() with undefined as an argument. 
PASS Element.before() with the empty string as an argument. 
PASS Element.before() with only text as an argument. 
PASS Element.before() with only one element as an argument. 
PASS Element.before() with one element and text as arguments. 
PASS Element.before() with context object itself as the argument. 
PASS Element.before() with context object itself and node as the arguments, switching positions. 
PASS Element.before() with all siblings of child as arguments. 
PASS Element.before() with some siblings of child as arguments; no changes in tree; viable sibling is first child. 
PASS Element.before() with some siblings of child as arguments; no changes in tree. 
PASS Element.before() when pre-insert behaves like prepend. 
PASS Element.before() with one sibling of child and text as arguments. 
PASS Element.before() on a child without any parent. 
PASS Text.before() without any argument. 
PASS Text.before() with null as an argument. 
PASS Text.before() with undefined as an argument. 
PASS Text.before() with the empty string as an argument. 
PASS Text.before() with only text as an argument. 
PASS Text.before() with only one element as an argument. 
PASS Text.before() with one element and text as arguments. 
PASS Text.before() with context object itself as the argument. 
PASS Text.before() with context object itself and node as the arguments, switching positions. 
PASS Text.before() with all siblings of child as arguments. 
PASS Text.before() with some siblings of child as arguments; no changes in tree; viable sibling is first child. 
PASS Text.before() with some siblings of child as arguments; no changes in tree. 
PASS Text.before() when pre-insert behaves like prepend. 
PASS Text.before() with one sibling of child and text as arguments. 
PASS Text.before() on a child without any parent.