WARNING: Must have `/tools/build/build.properties` file before doing the test.
# create `build` folder
# create `build/test_data` folder
# create empty files with following names in that folder:
* `build-schema.sql`
* `build-data.sql`
* `build-patch.sql`
# while being in root folder of In-Portal run `phing -f tools/build/build_custom.xml lint` command
# confirm, that files, created in `build/test_data` folder wasn't copied to `/system` folder