add C++ tests

test/cpp/test.cpp

@@ -0,0 +1,77 @@
+
+#include <filament/Engine.h>
+#include <iostream>
+#include <math.h>
+#include <fstream>
+#include <cstring>
+#include <vector>
+#include <string> 
+#include <map>
+#include <unistd.h>
+
+#include "SceneManager.hpp"
+
+#include "ResourceBuffer.hpp"
+
+using namespace filament;
+using namespace flutter_filament;
+using namespace std;
+
+int _i = 0;
+
+ResourceBuffer loadResource(const char* name) {
+
+    std::cout << "LOADING RESOURCE" << std::endl;
+
+    char cwd[PATH_MAX];
+    if (getcwd(cwd, sizeof(cwd)) != NULL) {
+       std::cout << "Current working dir: " << cwd  << std::endl;
+    }
+
+    string name_str(name);
+    auto id = _i++;
+    
+    name_str = string(cwd) + string("/") + name_str;
+    
+    std::cout << "Loading resource at " << name_str.c_str() << std::endl;
+
+    streampos length;
+    ifstream is(name_str, ios::binary);
+    ResourceBuffer rb { nullptr, -1, 0 };
+    if(!is) {
+      std::cout << "Failed to find resource at file path " << name_str.c_str() << std::endl;
+      return rb;
+    }
+    is.seekg (0, ios::end);
+    length = is.tellg();
+    char * buffer;
+    buffer = new char [length];
+    is.seekg (0, ios::beg);
+    is.read (buffer, length);
+    is.close();      
+    return ResourceBuffer { buffer, static_cast<int32_t>(length), id };
+}
+
+void freeResource(ResourceBuffer rb) {
+
+}
+
+int main(int argc, char** argv) {
+    auto engine = Engine::create();
+    auto scene = engine->createScene();
+    auto loader = ResourceLoaderWrapper(loadResource, freeResource);
+
+    auto sceneManager = SceneManager(&loader, engine, scene, nullptr);
+
+    auto shapes = sceneManager.loadGlb("../example/assets/shapes/shapes.glb", 1);
+
+    auto morphTargetNames = sceneManager.getMorphTargetNames(shapes, "Cylinder");
+    assert(morphTargetNames->size() == 4);
+
+    morphTargetNames = sceneManager.getMorphTargetNames(shapes, "Cube");
+    assert(morphTargetNames->size() == 2);
+
+    morphTargetNames = sceneManager.getMorphTargetNames(shapes, "Cone");
+    assert(morphTargetNames->size() == 8);
+    sceneManager.destroyAll();
+}