• splatterdash (7/7) Aug 05 2014 Hi all,
• abanstadya (9/16) Aug 05 2014 The concern would be more on functions that delete files.
• simendsjo (6/15) Aug 05 2014 Split it to several functions:

"splatterdash" <toa.konuva yahoo.com> writes:

Hi all,

Is there a recommended way to test functions that opens and 
iterates over files? The unittest block seems more suited for 
testing functions whose input and output can be defined in the 
program itself. I'm wondering if there is a better way to test 
functions that open files with specific formats.

Thanks before :).

"abanstadya" <abanstadya nowhere.utopia> writes:

On Tuesday, 5 August 2014 at 23:22:24 UTC, splatterdash wrote:
 Hi all,

 Is there a recommended way to test functions that opens and 
 iterates over files? The unittest block seems more suited for 
 testing functions whose input and output can be defined in the 
 program itself. I'm wondering if there is a better way to test 
 functions that open files with specific formats.

 Thanks before :).

The concern would be more on functions that delete files. 
Yesterday I've made a programming error which resulted into the 
deletion if the source files of another project. Fortunately the 
other project was git-i-fyed and I just had to stash/pull to 
recover my files.
Take care. Opening files with wrong args can overwrite, delete 
the curent one.
Maybe make a sandbox environment (clean brand new account).

simendsjo <simendsjo gmail.com> writes:

On 08/06/2014 01:22 AM, splatterdash wrote:
 Hi all,
 
 Is there a recommended way to test functions that opens and iterates
 over files? The unittest block seems more suited for testing functions
 whose input and output can be defined in the program itself. I'm
 wondering if there is a better way to test functions that open files
 with specific formats.
 
 Thanks before :).

Split it to several functions:

  ubyte[] readFile(string file) {...}

  MyFormat parseData(ubyte[] data) { ... }

This way you have very little logic where the files are read, and you
can easily unittest your parsing.