added postgres backend

test/CMakeLists.txt

@@ -31,5 +31,6 @@ target_link_libraries(tests PRIVATE
   Catch2::Catch2WithMain
   matador
   ${CMAKE_DL_LIBS}
-  ${SQLite3_LIBRARIES})
+  ${SQLite3_LIBRARIES}
+  ${PostgreSQL_LIBRARY})
 target_include_directories(tests PUBLIC $<BUILD_INTERFACE:${PROJECT_SOURCE_DIR}>/include)

test/ConnectionTest.cpp

@@ -1,4 +1,5 @@
 #include <catch2/catch_test_macros.hpp>
+#include <catch2/generators/catch_generators.hpp>
 
 #include "matador/sql/connection.hpp"
 

test/SessionTest.cpp

@@ -1,4 +1,5 @@
 #include <catch2/catch_test_macros.hpp>
+#include <catch2/generators/catch_generators.hpp>
 
 #include <matador/sql/column.hpp>
 #include <matador/sql/condition.hpp>
@@ -13,7 +14,12 @@ using namespace matador::sql;
 using namespace matador::test;
 
 TEST_CASE("Create table with foreign key relation", "[session]") {
-  connection_pool<connection> pool("sqlite://sqlite.db", 4);
+  auto dns = GENERATE(as<std::string>{},
+                      "sqlite://sqlite.db",
+                      "postgres://test:test123@127.0.0.1:5432/matador_test" );
+
+
+  connection_pool<connection> pool(dns, 4);
   session s(pool);
 
   auto res = s.create()

test/query.cpp

@@ -1,8 +1,23 @@
 #include <catch2/catch_test_macros.hpp>
 #include <catch2/generators/catch_generators.hpp>
 
+#include "matador/sql/connection.hpp"
+
+using namespace matador;
+
 TEST_CASE("Query test", "[query]") {
-  auto dns = GENERATE(as<std::string>{}, "mssql", "sqlite", "postgres" );
+  auto dns = GENERATE(as<std::string>{},
+                      "sqlite://sqlite.db",
+                      "postgres://test:test123@127.0.0.1:5432/matador_test" );
+
+  sql::connection c(dns);
+  REQUIRE(!c.is_open());
+
+  c.open();
+  REQUIRE(c.is_open());
+
+  c.close();
+  REQUIRE(!c.is_open());
 
   INFO(dns);
   REQUIRE(!dns.empty());