Template:User sandbox/testcases

limits in MediaWiki; see the HTML comment "NewPP limit report" in the rendered page.
You can also use Special:ExpandTemplates

to examine the results of template uses.
You can test how this page looks in the different skins and parsers with these links:

Testing new "plain=yes" feature

{{User sandbox/sandbox|1=TestUserName|list=[[User:UserNameHere/sandbox|sandbox]], [[User:UserNameHere/sandbox2|sandbox2]]|plain=yes}}

results:

This is a user sandbox of TestUserName. A user sandbox is a subpage of the user's user page. It serves as a testing spot and page development space for the user and is not an encyclopedia article. Create or edit your own sandbox here.
This user's sandboxes: sandbox, sandbox2

Testing spacing cleanup (no junk whitespace after message if plain=yes and list= is empty)

{{User sandbox/sandbox|1=TestUserName|plain=yes}}

results:

This is the user sandbox of TestUserName. A user sandbox is a subpage of the user's user page. It serves as a testing spot and page development space for the user and is not an encyclopedia article. Create or edit your own sandbox here.

Default display unaffected

{{User sandbox/sandbox|1=TestUserName}}

results:

This is the user sandbox of TestUserName. A user sandbox is a subpage of the user's user page. It serves as a testing spot and page development space for the user and is not an encyclopedia article. Create or edit your own sandbox here.

Other sandboxes: Main sandbox | Template sandbox

Finished writing a draft article? Are you ready to request review of it by an experienced editor for possible inclusion in Wikipedia? Submit your draft for review!

All optional displays cooperate

{{User sandbox/sandbox|1=TestUserName|list=[[User:UserNameHere/sandbox|sandbox]], [[User:UserNameHere/sandbox2|sandbox2]]}}

results:

This is a user sandbox of TestUserName. A user sandbox is a subpage of the user's user page. It serves as a testing spot and page development space for the user and is not an encyclopedia article. Create or edit your own sandbox here.
This user's sandboxes: sandbox, sandbox2

Other sandboxes: Main sandbox | Template sandbox

Finished writing a draft article? Are you ready to request review of it by an experienced editor for possible inclusion in Wikipedia? Submit your draft for review!

{{User sandbox/sandbox|1=TestUserName|list=[[User:UserNameHere/sandbox|sandbox]], [[User:UserNameHere/sandbox2|sandbox2]]|plain=yes|selectskin=yes}}

results:

This is a user sandbox of TestUserName. A user sandbox is a subpage of the user's user page. It serves as a testing spot and page development space for the user and is not an encyclopedia article. Create or edit your own sandbox here.
This user's sandboxes: sandbox, sandbox2

{{User sandbox/sandbox|1=TestUserName|list=[[User:UserNameHere/sandbox|sandbox]], [[User:UserNameHere/sandbox2|sandbox2]]|selectskin=yes}}

results:

This is a user sandbox of TestUserName. A user sandbox is a subpage of the user's user page. It serves as a testing spot and page development space for the user and is not an encyclopedia article. Create or edit your own sandbox here.
This user's sandboxes: sandbox, sandbox2

Other sandboxes: Main sandbox | Template sandbox

Finished writing a draft article? Are you ready to request review of it by an experienced editor for possible inclusion in Wikipedia? Submit your draft for review!

Testing plain=all subfeature

{{User sandbox/sandbox|1=TestUserName|list=[[User:UserNameHere/sandbox|sandbox]], [[User:UserNameHere/sandbox2|sandbox2]]|plain=all}}

results:

This is a user sandbox of TestUserName. A user sandbox is a subpage of the user's user page. It serves as a testing spot and page development space for the user and is not an encyclopedia article.
This user's sandboxes: sandbox, sandbox2