# How to ensure examples in non-reference documentation test right

Consider the following rst file, called Tiny.rst, and placed somewhere in the Sage doc tree where I know that things work properly.

```
.. -*- coding: utf-8 -*-
Tiny Test File
==============
A command
---------
Here's an example.
::
sage: factor(2012)
2^2 * 503
Functions in Sage
-----------------
Let's do some functions.
::
sage: f(x)=x^2
sage: f(x)
x^2
Let's ask Sage what the function is one more time.
::
sage: f(x)
x^2
```

When I test it, regular commands and commands together test fine. But commands with user-defined things that are in another literal block don't.

```
sage -t devel/sage-main/doc/en/.../Tiny.rst
**********************************************************************
File "/Users/.../sage-5.1.beta5/devel/sage-main/doc/en/.../Tiny.rst", line 51:
sage: f(x)
Exception raised:
File "<doctest __main__.example_3[2]>", line 1, in <module>
f(x)###line 51:
sage: f(x)
NameError: name 'f' is not defined
**********************************************************************
1 items had failures:
1 of 4 in __main__.example_3
***Test Failed*** 1 failures.
For whitespace errors, see the file /Users/.../.sage/tmp/new_host_2.home-49485/Tiny_49488.py
[2.7 s]
----------------------------------------------------------------------
The temporary doctesting directory
/Users/.../.sage/tmp/new_host_2.home-49485
was not removed: it is not empty, presumably because doctests
failed or doctesting was interrupted.
----------------------------------------------------------------------
The following tests failed:
sage -t devel/sage-main/doc/en/.../Tiny.rst # 1 doctests failed
----------------------------------------------------------------------
Timings have been updated.
```

If you remove the words before the second `f(x)`

, the same thing happens.

So what gives? Clearly a lot of the documentation doesn't have this issue.