Bug#35604144 routertest_component_metadata_ttl takes very long time to execute

routertest_component_metadata_ttl has 6 suites with 106 testcases which on MacOS
takes almost 5 minutes to run.

Most of those tests are not directly related to testing metatada_cache.ttl
configuration option.

This patch splits the test into 4 files that can be run in parallel:

runtime_output_directory/routertest_component_metadata_ttl
18 tests from 3 test suites ran. (17492 ms total)

runtime_output_directory/routertest_component_cluster_metadata
50 tests from 11 test suites ran. (99067 ms total)

runtime_output_directory/routertest_component_gr_state
16 tests from 4 test suites ran. (12528 ms total)

runtime_output_directory/routertest_component_node_attributes
22 tests from 8 test suites ran. (101166 ms total)

Change-Id: I3fe2978b061eff885d85c85a1b7bfd00dbcf8ea0

Author: Andrzej Religa

router/tests/CMakeLists.txt

@@ -34,6 +34,7 @@ SET(helper_sources
   helpers/router_component_test.cc
   helpers/router_component_testutils.cc
   helpers/router_component_system_layout.cc
+  helpers/router_component_metadata.cc
   helpers/router_test_helpers.cc
   helpers/script_generator.cc
   helpers/shared_server.cc

router/tests/component/CMakeLists.txt

@@ -59,6 +59,9 @@ FOREACH(test_file
     test_logging_eventlog.cc
     test_master_key_reader_writer.cc
     test_metadata_ttl.cc
+    test_cluster_metadata.cc
+    test_node_attributes.cc
+    test_gr_state.cc
     test_pidfile.cc
     test_read_replica.cc
     test_rest_api.cc