exec_check - Execution of external program and comparing of its result with etalon

izh_test
Kinds of tests
test_script - Sequence of simple test actions

exec_check - Execution of external program and comparing of its result with etalon

The command allows doing all the actions that can be done by test with the same name exec_check .

Full specification of the command looks like:

<exec_check>
  <cmd>command line for test</cmd>
  <out>test result base path</out>
  <in>name of file to send to input</in>
  <input>text to send to input</input>
</exec_check>

Where:

cmd	Command line to launch tested program. Output of the program is compared with etalon. `izh_test` adds nothing to the command line when launch the program (except substitution of variables) from arbitrary place in the file system. So you have to use absolute path to the launched file or use the system substitution variable %test_dir% , which is replaced by the path to the directory with file-description of the test.
out	Base file name for "test file result". Usually this file name has an extension. If the file name looks like [name].[last_extension] then name of the result file will be [name].result.[last_extension], name of the etalon file will be [name].etalon.[last_extension], name of the file difference will be [name].diff. Before using of these file names `izh_test` adds path to the directory with file description of the test to it so you don't have to use %test_dir% .
in	Name of file. Its content will be sent to the standard input stream of the tested program. If fields `in` and `input` (see below) are empty then `izh_test` will send nothing to the standard input stream of the tested program. Before using of this file name `izh_test` adds path to the directory with file description of the test to it so you don't have to use %test_dir% .
input	Text which will be sent to the standard input stream of the tested program. This field is used only if field `in` (see previous definition) is empty. Otherwise (field `in` contains name of file with data), `izh_test` will send content of file with name `in` but content of field `input` will be ignored. If fields `in` and `input` (see above) are empty then `izh_test` will send nothing to the standard input stream of the tested program.

So as this test command can be executed only as part of a test script , which already has identification specification with names, own identification specification with names for the command is not needed unlike test with the same name

The command only compares content of result file with content of etalon file.

If contents of files are the same then result file is deleted.

If contents of files are not the same then result file is not deleted and the command returns unsuccessful flag.

The command can be used as example to test programs which change files in the directory except using standard output stream. Such changes can be checked from the same test script , using test command check .

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