# Spec example description

**URL:** <https://forum.crystal-lang.org/t/spec-example-description/1296>\
**Category:** Help & Support\
**Created:** [October 27, 2019, 11:46am UTC](https://forum.crystal-lang.org/t/spec-example-description/1296 "2019-10-27T11:46:37Z")\
**Posts on this page:** 1\
**Showing post:** 3

<div class="post-metadata">

**Author:** ![gummybears](https://yyz2.discourse-cdn.com/flex036/user_avatar/forum.crystal-lang.org/gummybears/32/1886_2.png) [@gummybears](https://forum.crystal-lang.org/u/gummybears)\
**Post date:** [October 27, 2019, 1:33pm UTC](https://forum.crystal-lang.org/t/spec-example-description/1296/3 "2019-10-27T13:33:21Z")

</div>

Let say I want to test some math operation

```auto
it "1 + 2" do
  expr = "1 + 2"
  mytest(expr)
end

```

I would like to do this

```auto
it "1 + 2" do
  expr = get_description_of_this_spec()
  # expr should no hold "1 + 2"
  mytest(expr)
end

```

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