add message template used when no result of test suite is found

README.md

@@ -600,6 +600,12 @@ job_result_unknown_fmt = <details><summary>:shrug: UNKNOWN _(click triangle for
 `job_result_unknown_fmt` is used in case no result file (produced by `bot/check-build.sh`
 provided by target repository) was found.
 
+```
+job_test_unknown_fmt = <details><summary>:shrug: UNKNOWN _(click triangle for details)_</summary><ul><li>Job test file `{filename}` does not exist in job directory or reading it failed.</li></ul></details>
+```
+`job_test_unknown_fmt` is used in case no test file (produced by `bot/check-test.sh`
+provided by target repository) was found.
+
 # Instructions to run the bot components
 
 The bot consists of three components:

app.cfg.example

@@ -215,3 +215,4 @@ no_tarball_message = Slurm output lacks message about created tarball.
 no_matching_tarball = No tarball matching `{tarball_pattern}` found in job dir.
 multiple_tarballs = Found {num_tarballs} tarballs in job dir - only 1 matching `{tarball_pattern}` expected.
 job_result_unknown_fmt = <details><summary>:shrug: UNKNOWN _(click triangle for detailed information)_<summary/><ul><li>Job results file `{filename}` does not exist in job directory or reading it failed.</li><li>No artefacts were found/reported.</li></ul></details>
+job_test_unknown_fmt = <details><summary>:shrug: UNKNOWN _(click triangle for detailed information)_<summary/><ul><li>Job test file `{filename}` does not exist in job directory or reading it failed.</li></ul></details>