Add tests for lists in code blocks and code blocks in lists

https://github.com/kaushalmodi/ox-hugo/issues/57

example-site/content-org/all-posts.org

@@ -352,6 +352,46 @@ property needs to be left *empty* instead of setting to =nil=!
 #+BEGIN_SRC makefile
 prefix = /dir/where/you/want/to/install/org # Default: /usr/share
 #+END_SRC
+** Source block with list syntax in a list         :@fixme:upstream:
+:PROPERTIES:
+:EXPORT_DATE: 2017-08-01
+:EXPORT_FILE_NAME: list-has-src-block-with-list-syntax
+:END:
+As of today (<2017-08-02 Wed>), an upstream bug in /Blackfriday/
+([[https://github.com/russross/blackfriday/issues/239][Issue #239]]) causes fenced code blocks in lists to not render
+correctly if they contain Markdown syntax lists.
+
+Below is an example of such a case:
+
+- List item 1
+   #+BEGIN_SRC md
+- List item 1 in code block
+- List item 2 in code block
+   #+END_SRC
+- List item 2
+- List item 3
+** Source block without list syntax in a list
+:PROPERTIES:
+:EXPORT_DATE: 2017-08-01
+:EXPORT_FILE_NAME: list-has-src-block-but-no-list-syntax
+:END:
+This case is not affected by /Blackfriday/ [[https://github.com/russross/blackfriday/issues/239][Issue #239]] as the fenced
+code block does not have Markdown syntax lists.
+- List item 1
+  #+BEGIN_SRC md
+,*abc*
+/def/
+=def=
+  #+END_SRC
+- List item 2
+** Source block with list syntax but not in a list
+:PROPERTIES:
+:EXPORT_DATE: 2017-08-01
+:EXPORT_FILE_NAME: src-block-outside-list-with-list-syntax
+:END:
+#+BEGIN_SRC md
+- list 1
+#+END_SRC
 * Formatting                                                     :formatting:
 ** General
 :PROPERTIES:

example-site/content/posts/list-has-src-block-but-no-list-syntax.md

@@ -0,0 +1,18 @@
++++
+title = "Source block without list syntax in a list"
+date = 2017-08-01
+tags = []
+draft = false
++++
+
+This case is not affected by _Blackfriday_ [Issue #239](https://github.com/russross/blackfriday/issues/239) as the fenced
+code block does not have Markdown syntax lists.
+
+-   List item 1
+
+    ```md
+    *abc*
+    /def/
+    =def=
+    ```
+-   List item 2

example-site/content/posts/list-has-src-block-with-list-syntax.md

@@ -0,0 +1,22 @@
++++
+title = "Source block with list syntax in a list"
+date = 2017-08-01
+tags = ["upstream"]
+categories = ["fixme"]
+draft = false
++++
+
+As of today (<span class="timestamp-wrapper"><span class="timestamp">&lt;2017-08-02 Wed&gt;</span></span>), an upstream bug in _Blackfriday_
+([Issue #239](https://github.com/russross/blackfriday/issues/239)) causes fenced code blocks in lists to not render
+correctly if they contain Markdown syntax lists.
+
+Below is an example of such a case:
+
+-   List item 1
+
+    ```md
+    - List item 1 in code block
+    - List item 2 in code block
+    ```
+-   List item 2
+-   List item 3

example-site/content/posts/src-block-outside-list-with-list-syntax.md

@@ -0,0 +1,10 @@
++++
+title = "Source block with list syntax but not in a list"
+date = 2017-08-01
+tags = []
+draft = false
++++
+
+```md
+- list 1
+```