[Data/Vertex] Added a printing operator<<

- This will allow for easier testing of vertices by outputting their values when different from each other
Razakhel · May 20, 2024 · 2234766 · 2234766
1 parent 866fbf7
commit 2234766
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diff --git a/include/RaZ/Data/Submesh.hpp b/include/RaZ/Data/Submesh.hpp
@@ -28,6 +28,16 @@ struct Vertex {
   constexpr bool operator!=(const Vertex& vert) const noexcept { return !(*this == vert); }
 };
 
+inline std::ostream& operator<<(std::ostream& stream, const Vertex& vert) {
+  stream << "{\n"
+         << "  " << vert.position << '\n'
+         << "  " << vert.texcoords << '\n'
+         << "  " << vert.normal << '\n'
+         << "  " << vert.tangent << '\n'
+         << '}';
+  return stream;
+}
+
 class Submesh {
 public:
   Submesh() noexcept = default;

diff --git a/tests/src/RaZ/Data/Submesh.cpp b/tests/src/RaZ/Data/Submesh.cpp
@@ -2,6 +2,8 @@
 
 #include <catch2/catch_test_macros.hpp>
 
+#include <sstream>
+
 TEST_CASE("Vertex basic", "[data]") {
   constexpr Raz::Vertex vertex1{ Raz::Vec3f(0.f), Raz::Vec2f(1.f), Raz::Axis::Z, Raz::Axis::X };
   CHECK(vertex1.position == Raz::Vec3f(0.f));
@@ -21,6 +23,26 @@ TEST_CASE("Vertex basic", "[data]") {
   CHECK_FALSE(std::hash<Raz::Vertex>()(vertex1) == std::hash<Raz::Vertex>()(vertex2));
 }
 
+TEST_CASE("Vertex printing", "[data]") {
+  constexpr Raz::Vertex vertex{
+    Raz::Vec3f(1.f, 2.f, 3.f),
+    Raz::Vec2f(0.123456789f, 0.987654321f),
+    Raz::Vec3f(4.f, 5.f, 6.f),
+    Raz::Vec3f(7.f, 8.f, 9.f),
+  };
+
+  std::stringstream stream;
+
+  stream << vertex;
+  CHECK(stream.str() ==
+    "{\n"
+    "  [ 1, 2, 3 ]\n"
+    "  [ 0.123457, 0.987654 ]\n"
+    "  [ 4, 5, 6 ]\n"
+    "  [ 7, 8, 9 ]\n"
+    "}");
+}
+
 TEST_CASE("Submesh basic", "[data]") {
   Raz::Submesh submesh;
   CHECK(submesh.getVertexCount() == 0);