tests: add pq_file test
This test is intended to check the file source / sink
operability. To do that, the following processing chain
is being composed:
source/file -> proc/dummy -> sink/file (stdout)
The source item opens the sample file named 'io_sample.txt'
for reading. The next processing item simply converts all
uppercase latters to the lowercase. The last one writes
the result to stdout.
This processing cycle is being repeated several times
with different block length values.
5 files changed