From 8a5e7abd30021418d6a86328080eb0a5e18ef506 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Vladim=C3=ADr=20Vondru=C5=A1?= <mosra@centrum.cz>
Date: Mon, 20 Aug 2012 11:57:19 +0200
Subject: [PATCH] SceneGraph: added tests for 2D projection and default
 projections.

---
 src/SceneGraph/Test/CameraTest.cpp | 31 ++++++++++++++++++++++++++++--
 src/SceneGraph/Test/CameraTest.h   |  3 +++
 2 files changed, 32 insertions(+), 2 deletions(-)

diff --git a/src/SceneGraph/Test/CameraTest.cpp b/src/SceneGraph/Test/CameraTest.cpp
index d2c514b09..9d89a0365 100644
--- a/src/SceneGraph/Test/CameraTest.cpp
+++ b/src/SceneGraph/Test/CameraTest.cpp
@@ -23,6 +23,9 @@ namespace Magnum { namespace SceneGraph { namespace Test {
 
 CameraTest::CameraTest() {
     addTests(&CameraTest::fixAspectRatio,
+             &CameraTest::defaultProjection2D,
+             &CameraTest::defaultProjection3D,
+             &CameraTest::projection2D,
              &CameraTest::orthographic,
              &CameraTest::perspective);
 }
@@ -69,9 +72,32 @@ void CameraTest::fixAspectRatio() {
     CORRADE_COMPARE(Implementation::aspectRatioFix<Matrix4>(Implementation::AspectRatioPolicy::Extend, projectionSize, size), expectedExtendRectangle);
 }
 
+void CameraTest::defaultProjection2D() {
+    Camera2D camera;
+    CORRADE_COMPARE(camera.projectionMatrix(), Matrix3());
+}
+
+void CameraTest::defaultProjection3D() {
+    Camera3D camera;
+    CORRADE_COMPARE(camera.projectionMatrix(), Matrix4());
+}
+
+void CameraTest::projection2D() {
+    Vector2 projectionSize(4.0f, 3.0f);
+    Camera2D camera;
+    camera.setProjection(projectionSize);
+
+    Matrix3 a(2.0f/4.0f,    0.0f,       0.0f,
+              0.0f,         2.0f/3.0f,  0.0f,
+              0.0f,         0.0f,       1.0f);
+
+    CORRADE_COMPARE(camera.projectionMatrix(), a);
+}
+
 void CameraTest::orthographic() {
+    Vector2 projectionSize(5);
     Camera3D camera;
-    camera.setOrthographic(Vector2(5), 1, 9);
+    camera.setOrthographic(projectionSize, 1, 9);
 
     Matrix4 a(0.4f,   0.0f,   0.0f,       0.0f,
               0.0f,   0.4f,   0.0f,       0.0f,
@@ -80,7 +106,8 @@ void CameraTest::orthographic() {
 
     CORRADE_COMPARE(camera.projectionMatrix(), a);
 
-    camera.setOrthographic(Vector2(5.0f, 4.0f), 1, 9);
+    Vector2 projectionSizeRectangle(5.0f, 4.0f);
+    camera.setOrthographic(projectionSizeRectangle, 1, 9);
 
     Matrix4 rectangle(0.4f,   0.0f,   0.0f,       0.0f,
                       0.0f,   0.5f,   0.0f,       0.0f,
diff --git a/src/SceneGraph/Test/CameraTest.h b/src/SceneGraph/Test/CameraTest.h
index f460c241f..2bf0e93b5 100644
--- a/src/SceneGraph/Test/CameraTest.h
+++ b/src/SceneGraph/Test/CameraTest.h
@@ -24,6 +24,9 @@ class CameraTest: public Corrade::TestSuite::Tester<CameraTest> {
         CameraTest();
 
         void fixAspectRatio();
+        void defaultProjection2D();
+        void defaultProjection3D();
+        void projection2D();
         void orthographic();
         void perspective();
 };