Nulls are wrapped in <em> tags (i.e. <em>null</em>) to
make a visual distinction between the string "null" and a null value.
The value is appended to any child markup.
Given the expression "username" returns a null, we expect the following results:
We have stripped out the concordion:echo attributes from the "expected output" for legibility. They may be present.
| Instrumentation | Expected output |
|---|---|
<span concordion:echo="username" /> |
<span><em>null</em></span> |
<span concordion:echo="username"></span> |
<span><em>null</em></span> |
<span concordion:echo="username">abc</span> |
<span>abc<em>null</em></span> |
<span concordion:echo="username"><b>abc</b></span> |
<span><b>abc</b><em>null</em></span> |