chore: add test for postgres file scraper

fixtures/expected/file-postgres-properties.json

@@ -0,0 +1,61 @@
+[{
+  "last_modified": "0001-01-01T00:00:00Z",
+  "id": "postgresql-properties",
+  "config_class": "PostgreSQLProperties",
+  "config":{
+        "authentication_timeout": "1min",
+        "checkpoint_completion_target": "0.5",
+        "checkpoint_flush_after": "256kB",
+        "cluster_name": "'main'",
+        "cron.database_name": "'postgres'",
+        "data_directory": "'/var/lib/postgresql/data'",
+        "db_user_namespace": "off",
+        "default_text_search_config": "'pg_catalog.english'",
+        "effective_cache_size": "128MB",
+        "extra_float_digits": "0",
+        "hba_file": "'/etc/postgresql/pg_hba.conf'",
+        "ident_file": "'/etc/postgresql/pg_ident.conf'",
+        "jit_provider": "'llvmjit'",
+        "lc_messages": "'en_US.UTF-8'",
+        "lc_monetary": "'en_US.UTF-8'",
+        "lc_numeric": "'en_US.UTF-8'",
+        "lc_time": "'en_US.UTF-8'",
+        "listen_addresses": "'*'",
+        "log_destination": "'csvlog'",
+        "log_directory": "'/var/log/postgresql'",
+        "log_file_mode": "0640",
+        "log_filename": "'postgresql.log'",
+        "log_line_prefix": "'%h %m [%p] %q%u@%d '",
+        "log_rotation_age": "0",
+        "log_rotation_size": "0",
+        "log_statement": "'all'",
+        "log_timezone": "'UTC'",
+        "logging_collector": "on",
+        "max_replication_slots": "5",
+        "max_slot_wal_keep_size": "1024",
+        "max_wal_senders": "10",
+        "password_encryption": "scram-sha-256",
+        "pgsodium.getkey_script": "'/usr/lib/postgresql/14/bin/pgsodium_getkey_urandom.sh'",
+        "pljava.libjvm_location": "'/usr/lib/jvm/java-11-openjdk-amd64/lib/server/libjvm.so'",
+        "row_security": "on",
+        "shared_buffers": "128MB",
+        "shared_preload_libraries": "'pg_stat_statements, pgaudit, plpgsql, plpgsql_check, pg_cron, pg_net, pgsodium'",
+        "ssl": "off",
+        "ssl_ca_file": "''",
+        "ssl_cert_file": "''",
+        "ssl_ciphers": "'HIGH:MEDIUM:+3DES:!aNULL'",
+        "ssl_crl_dir": "''",
+        "ssl_crl_file": "''",
+        "ssl_dh_params_file": "''",
+        "ssl_ecdh_curve": "'prime256v1'",
+        "ssl_key_file": "''",
+        "ssl_max_protocol_version": "''",
+        "ssl_min_protocol_version": "'TLSv1.2'",
+        "ssl_passphrase_command": "''",
+        "ssl_passphrase_command_supports_reload": "off",
+        "ssl_prefer_server_ciphers": "on",
+        "timezone": "'UTC'",
+        "unix_socket_directories": "'/var/run/postgresql'",
+        "wal_level": "logical"
+      }
+}]