TESTS: Add one config-check test case Add test case with wrong subdomain section format, where the too many domains are used to identify the trusted domain instead of just the connected domain and the one trusted domain that is being configured. Reviewed-by: Lukáš Slebodník <lslebodn@redhat.com>

test_config_check: Fix few issues * enable few tests * malformed configuration file due to missing closing ']' * fix few expected failures * add few sections into whitelist test * crash in test if count of expected failures is different then real value [ RUN ] config_check_test_bad_subdom_option_name [rule/allowed_domain_options]: Attribute 'debug_leTYPOvel' is not allowed in section 'domain/A.test/B.A.test'. Check for typos. [rule/allowed_subdomain_options]: Attribute 'debug_leTYPOvel' is not allowed in section 'domain/A.test/B.A.test'. Check for typos. [ ERROR ] --- Test failed with exception: Segmentation fault(11) Reviewed-by: Michal Židek <mzidek@redhat.com>

VALIDATORS: Detect inherit_from in normal domain This patch adds new sssd specific validator. In the future we can add more checks in it, but currently it only checks if the option inherit_from is used on normal domain and reports error if it is. Resolves: https://pagure.io/SSSD/sssd/issue/3356 Reviewed-by: Lukáš Slebodník <lslebodn@redhat.com>

TESTS: Add unit tests for cfg validation Add infrastructure for unit tests for validators. Reviewed-by: Lukáš Slebodník <lslebodn@redhat.com>