After creating my first BlogEngine.NET theme, BluePigment, I wanted to put together a list of everything that needs to be tested in case I decided to create a second theme.

Pages

1. Home
   1. Does the page look correct with 0 posts?
   2. Does the page look correct with 1 post?
   3. Does the page look correct with enough posts (10?) to trigger the Next Page/Previous Page links?
2. Contact
   1. Does the page look correct?
3. Archive
   1. Does the page look correct?
4. Search
   1. Does the page look correct with 0 posts found?
   2. Does the page look correct with 1 posts found?
   3. Does the page look correct with enough posts (20?) to show the Next Page/Previous Page links?
5. Post
   1. Does the page look correct with 0 comments?
   2. Does the page look correct with 1 comment?
   3. Does the page look correct with 2 or more comments?
   4. Does the page look correct with 0 related posts?
   5. Does the page look correct with 1 related post?
   6. Does the page look correct with 3 related posts?
6. Page
   1. Does the page look correct as the only post in the blog?
   2. Does the page look correct as the first post in the blog?
   3. Does the page look correct as the last post in the blog?
   4. Does the page look correct as a middle post in the blog?
7. Sign In
   1. Does the page look correct?

Controls

1. Administration
   1. Does the control look correct?
2. AuthorList
   1. Does the control look correct with RSS icons off?
   2. Does the control look correct with RSS icons on?
3. Blogroll
   1. Does the control look correct?
4. CategoryList
   1. Does the control look correct with RSS icons off?
   2. Does the control look correct with RSS icons on?
5. MonthList
   1. Does the control look correct?
6. PageList
   1. Does the control look correct?
7. PostCalendar
   1. Does the control look correct?
8. RecentComments
   1. Does the control look correct?
9. RecentPosts
   1. Does the control look correct with comments and ratings on?
   2. Does the control look correct with comments on and ratings off?
   3. Does the control look correct with comments off and ratings on?
   4. Does the control look correct with comments and ratings off?
10. SearchBox
    1. Does the control look correct?
11. Tagcloud
    1. Does the control look correct?

I hope I caught everything :)