/* * DoRayMe - a quick and dirty Raytracer * OBJ File unit tests * * Created by Manoƫl Trapier * Copyright (c) 2020 986-Studio. * */ #include #include #include #include #include TEST(OBJFileTest, Ignoring_unrecognised_lines) { const char gibberish[] = "There was a young lady named Bright\n" "who traveled much faster than light\n" "She set out one day\n" "in a relative way\n" "and came back the previous night.\n"; OBJFile parser = OBJFile(); parser.parseOBJFile(gibberish); ASSERT_EQ(parser.ignoredLines, 5); } TEST(OBJFileTest, Vertex_record) { const char file[] = "v -1 1 0\n" "v -1.0000 0.5000 0.0000\n" "v 1 0 0\n" "v 1 1 0\n"; OBJFile parser = OBJFile(); parser.parseOBJFile(file); ASSERT_EQ(parser.vertices(1), Point(-1, 1, 0)); ASSERT_EQ(parser.vertices(2), Point(-1, 0.5, 0)); ASSERT_EQ(parser.vertices(3), Point(1, 0, 0)); ASSERT_EQ(parser.vertices(4), Point(1, 1, 0)); } TEST(OBJFileTest, Parsing_triangle_faces) { const char file[] = "v -1 1 0\n" "v -1 0 0\n" "v 1 0 0\n" "v 1 1 0\n" "\n" "f 1 2 3\n" "f 1 3 4\n"; OBJFile parser = OBJFile(); parser.parseOBJFile(file); Group *g0 = parser.groups(0); Triangle *t1 = (Triangle *)(*g0)[0]; Triangle *t2 = (Triangle *)(*g0)[1]; ASSERT_EQ(t1->p1, parser.vertices(1)); ASSERT_EQ(t1->p2, parser.vertices(2)); ASSERT_EQ(t1->p3, parser.vertices(3)); ASSERT_EQ(t2->p1, parser.vertices(1)); ASSERT_EQ(t2->p2, parser.vertices(3)); ASSERT_EQ(t2->p3, parser.vertices(4)); } TEST(OBJFileTest, Triangulating_polygons) { const char file[] = "v -1 1 0\n" "v -1 0 0\n" "v 1 0 0\n" "v 1 1 0\n" "v 0 2 0\n" "\n" "f 1 2 3 4 5\n"; OBJFile parser = OBJFile(); parser.parseOBJFile(file); Group *g0 = parser.groups(0); Triangle *t1 = (Triangle *)(*g0)[0]; Triangle *t2 = (Triangle *)(*g0)[1]; Triangle *t3 = (Triangle *)(*g0)[2]; ASSERT_EQ(t1->p1, parser.vertices(1)); ASSERT_EQ(t1->p2, parser.vertices(2)); ASSERT_EQ(t1->p3, parser.vertices(3)); ASSERT_EQ(t2->p1, parser.vertices(1)); ASSERT_EQ(t2->p2, parser.vertices(3)); ASSERT_EQ(t2->p3, parser.vertices(4)); ASSERT_EQ(t3->p1, parser.vertices(1)); ASSERT_EQ(t3->p2, parser.vertices(4)); ASSERT_EQ(t3->p3, parser.vertices(5)); } TEST(OBJFileTest, Triangle_in_groups) { OBJFile parser = OBJFile("triangles.obj"); /* TODO: Add group name search/test */ Group *g1 = parser.groups(1); Group *g2 = parser.groups(2); Triangle *t1 = (Triangle *)(*g1)[0]; Triangle *t2 = (Triangle *)(*g2)[0]; ASSERT_EQ(t1->p1, parser.vertices(1)); ASSERT_EQ(t1->p2, parser.vertices(2)); ASSERT_EQ(t1->p3, parser.vertices(3)); ASSERT_EQ(t2->p1, parser.vertices(1)); ASSERT_EQ(t2->p2, parser.vertices(3)); ASSERT_EQ(t2->p3, parser.vertices(4)); } TEST(OBJFileTest, Vertex_normal_record) { const char file[] = "vn 0 0 1\n" "vn 0.707 0 -0.707\n" "vn 1 2 3\n"; OBJFile parser = OBJFile(); parser.parseOBJFile(file); ASSERT_EQ(parser.verticesNormal(1), Vector(0, 0, 1)); ASSERT_EQ(parser.verticesNormal(2), Vector(0.707, 0, -0.707)); ASSERT_EQ(parser.verticesNormal(3), Vector(1, 2, 3)); } TEST(OBJFileTest, Faces_with_normal) { const char file[] = "v 0 1 0\n" "v -1 0 0\n" "v 1 0 0\n" "\n" "vn -1 0 0\n" "vn 1 0 0\n" "vn 0 1 0\n" "\n" "f 1//3 2//1 3//2\n" "f 1/0/3 2/102/1 3/14/2\n"; OBJFile parser = OBJFile(); parser.parseOBJFile(file); Group *g0 = parser.groups(0); SmoothTriangle *t1 = (SmoothTriangle *)(*g0)[0]; SmoothTriangle *t2 = (SmoothTriangle *)(*g0)[1]; ASSERT_EQ(t1->p1, parser.vertices(1)); ASSERT_EQ(t1->p2, parser.vertices(2)); ASSERT_EQ(t1->p3, parser.vertices(3)); ASSERT_EQ(t1->n1, parser.verticesNormal(3)); ASSERT_EQ(t1->n2, parser.verticesNormal(1)); ASSERT_EQ(t1->n3, parser.verticesNormal(2)); ASSERT_EQ(t2->p1, parser.vertices(1)); ASSERT_EQ(t2->p2, parser.vertices(2)); ASSERT_EQ(t2->p3, parser.vertices(3)); ASSERT_EQ(t2->n1, parser.verticesNormal(3)); ASSERT_EQ(t2->n2, parser.verticesNormal(1)); ASSERT_EQ(t2->n3, parser.verticesNormal(2)); }