Add unit test

test/sql/table_test.sql

@@ -0,0 +1,23 @@
+--
+-- We assume that ddl_historization is installed in public schema
+--
+
+SET search_path=public,pgtap;
+
+BEGIN;
+
+SELECT plan(6);
+
+CREATE EXTENSION schedoc CASCADE;
+
+SELECT has_extension('schedoc');
+SELECT has_table('schedoc_column_raw');
+SELECT has_view('schedoc_column_comments');
+
+SELECT has_enum('data_status');
+
+SELECT enum_has_labels('data_status', ARRAY['public', 'private', 'legacy', 'wip']);
+
+SELECT has_function('schedoc_start');
+
+ROLLBACK;