Added tests. Found serialize issue

.vscode/launch.json

@@ -12,6 +12,18 @@
             "args": [],
             "cwd": "${workspaceFolder}",
             "preLaunchTask": "GCC: Build"
+        },
+        {
+            "type": "lldb",
+            "request": "launch",
+            "name": "Debug: tests",
+            "program": "${workspaceFolder}/build/larra_xmpp_tests",
+            "args": [
+                // --gtest_filter=POSTIVE_PATTERNS[-NEGATIVE_PATTERNS]
+                "--gtest_filter=Roster*"
+            ],
+            "cwd": "${workspaceFolder}",
+            "preLaunchTask": "GCC: Build"
         }
     ]
 }

library/include/larra/bind.hpp

@@ -47,7 +47,7 @@ using SetBind = Set<Bind>;
 using ResultBind = Result<Bind>;
 using IqBind = Iq<Bind>;
 
-auto MakeSetBind() {
+inline auto MakeSetBind() {
   return SetBind{.id = "1", .payload = Bind{}};
 }
 }  // namespace larra::xmpp::iq

library/include/larra/roster.hpp

@@ -2,6 +2,7 @@
 #include <libxml++/libxml++.h>
 #include <spdlog/spdlog.h>
 
+#include <cassert>
 #include <larra/iq.hpp>
 #include <larra/jid.hpp>
 #include <larra/utils.hpp>
@@ -40,6 +41,8 @@ struct Roster {
   }
   friend constexpr auto operator<<(xmlpp::Element* element, const Roster& roster) {
     element->set_attribute("xmlns", "jabber:iq:roster");
+    // TODO: Add adding elements to xmlpp::Element
+    assert(false);
   }
   [[nodiscard]] static constexpr auto Parse(xmlpp::Element* element) -> Roster {
     const auto& item_nodes = element->get_children("item");
@@ -68,7 +71,7 @@ using GetRoster = Get<Roster>;
 using ResultRoster = Result<Roster>;
 using IqRoster = Iq<Roster>;
 
-auto MakeGetRoster(const FullJid& jid) {
+inline auto MakeGetRoster(const FullJid& jid) {
   return GetRoster{.id = "1", .from = ToString(jid), .payload = Roster{}};
 }
 

tests/roster.cpp

@@ -0,0 +1,30 @@
+#include <gtest/gtest.h>
+
+#include <larra/roster.hpp>
+#include <ranges>
+
+#include "larra/jid.hpp"
+
+namespace larra::xmpp {
+
+TEST(Roster, SerializeAndParse) {
+  FullJid jid{.username = "test", .server = "server", .resource = "res"};  // NOLINT
+  auto roster = iq::MakeGetRoster(jid);
+  roster.payload.items.emplace_back("u1", "s1");
+  roster.payload.items.emplace_back("u2", "s2");
+  roster.payload.items.emplace_back("u3", "s3");
+
+  using S = Serialization<iq::GetRoster>;
+  xmlpp::Document doc;
+  auto node = doc.create_root_node("iq");
+  node << roster;
+  auto parse_res = iq::Roster::Parse(node);
+
+  ASSERT_EQ(roster.payload.items.size(), parse_res.items.size());
+  for(const auto& [idx, expect_el, parsed_el] : std::views::zip(std::views::iota(0), roster.payload.items, parse_res.items)) {
+    EXPECT_EQ(expect_el, parsed_el) << "Mismatched on idx: " << idx;
+    // std::cerr << "        " << "idx: " << idx << "; expect_el: " << expect_el << "; parsed_el: " << parsed_el << '\n';
+  }
+}
+
+}  // namespace larra::xmpp