observer progress, added to schema and added schema_observer class

test/orm/sql/ColumnGeneratorTest.cpp

@@ -1,10 +1,17 @@
 #include <catch2/catch_test_macros.hpp>
 
+#include "matador/sql/backend_provider.hpp"
+#include "matador/sql/connection_pool.hpp"
+#include "matador/sql/interface/connection_impl.hpp"
+
 #include "matador/query/generator.hpp"
 #include "matador/query/table.hpp"
+#include "matador/query/schema.hpp"
 
 #include "matador/object/repository.hpp"
 
+#include "../backend/test_backend_service.hpp"
+
 #include "../test/models/product.hpp"
 #include "../test/models/order.hpp"
 #include "../test/models/book.hpp"
@@ -12,10 +19,14 @@
 
 using namespace matador::query;
 using namespace matador::object;
+using namespace matador::sql;
 
 TEST_CASE("Generate columns from object", "[column][generator]") {
   using namespace matador::test;
-  repository s("main");
+  backend_provider::instance().register_backend("noop", std::make_unique<orm::test_backend_service>());
+  connection_pool pool("noop://noop.db", 4);
+
+  schema s(pool);
   auto result = s.attach<product>("product");
   REQUIRE( result );
 
@@ -42,7 +53,10 @@ TEST_CASE("Generate columns from object", "[column][generator]") {
 
 TEST_CASE("Generate columns for object with has many relation", "[column][generator][relation]") {
   using namespace matador::test;
-  repository s("main");
+  backend_provider::instance().register_backend("noop", std::make_unique<orm::test_backend_service>());
+  connection_pool pool("noop://noop.db", 4);
+
+  schema s(pool);
   auto result = s.attach<supplier>("supplier")
     .and_then( [&s] { return s.attach<category>("categories"); } )
     .and_then( [&s] { return s.attach<order_details>("order_details"); } )
@@ -82,7 +96,10 @@ TEST_CASE("Generate columns for object with has many relation", "[column][genera
 
 TEST_CASE("Generate columns for object with eager foreign key relation", "[column][generator][eager]") {
   using namespace matador::test;
-  repository s("main");
+  backend_provider::instance().register_backend("noop", std::make_unique<orm::test_backend_service>());
+  connection_pool pool("noop://noop.db", 4);
+
+  schema s(pool);
   auto result = s.attach<book>("books")
     .and_then( [&s] { return s.attach<author>("authors"); } );
   REQUIRE(result);