From cc938a29dd204408c7947ed2251254044bf65ade Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Vladim=C3=ADr=20Vondru=C5=A1?= <mosra@centrum.cz>
Date: Thu, 21 Mar 2013 17:44:52 +0100
Subject: [PATCH] Math: test that implicit conversion of T to Vector<T> won't
 compile.

"Won't compile" tests are another awesome feature of C++11.
---
 src/Math/Test/Vector2Test.cpp | 3 +++
 src/Math/Test/Vector3Test.cpp | 3 +++
 src/Math/Test/Vector4Test.cpp | 3 +++
 src/Math/Test/VectorTest.cpp  | 3 +++
 4 files changed, 12 insertions(+)

diff --git a/src/Math/Test/Vector2Test.cpp b/src/Math/Test/Vector2Test.cpp
index b6a8772e4..622c303d4 100644
--- a/src/Math/Test/Vector2Test.cpp
+++ b/src/Math/Test/Vector2Test.cpp
@@ -107,6 +107,9 @@ void Vector2Test::constructOneValue() {
     Vector2 a(3.0f); /* Not constexpr under GCC < 4.7 */
     #endif
     CORRADE_COMPARE(a, Vector2(3.0f, 3.0f));
+
+    /* Implicit conversion is not allowed */
+    CORRADE_VERIFY(!(std::is_convertible<Float, Vector2>::value));
 }
 
 void Vector2Test::constructConversion() {
diff --git a/src/Math/Test/Vector3Test.cpp b/src/Math/Test/Vector3Test.cpp
index 8e3d6b1b9..1dc913f47 100644
--- a/src/Math/Test/Vector3Test.cpp
+++ b/src/Math/Test/Vector3Test.cpp
@@ -114,6 +114,9 @@ void Vector3Test::constructOneValue() {
     Vector3 a(-3.0f); /* Not constexpr under GCC < 4.7 */
     #endif
     CORRADE_COMPARE(a, Vector3(-3.0f, -3.0f, -3.0f));
+
+    /* Implicit conversion is not allowed */
+    CORRADE_VERIFY(!(std::is_convertible<Float, Vector3>::value));
 }
 
 void Vector3Test::constructParts() {
diff --git a/src/Math/Test/Vector4Test.cpp b/src/Math/Test/Vector4Test.cpp
index 581b5c597..3a18d019a 100644
--- a/src/Math/Test/Vector4Test.cpp
+++ b/src/Math/Test/Vector4Test.cpp
@@ -111,6 +111,9 @@ void Vector4Test::constructOneValue() {
     Vector4 a(4.3f); /* Not constexpr under GCC < 4.7 */
     #endif
     CORRADE_COMPARE(a, Vector4(4.3f, 4.3f, 4.3f, 4.3f));
+
+    /* Implicit conversion is not allowed */
+    CORRADE_VERIFY(!(std::is_convertible<Float, Vector4>::value));
 }
 
 void Vector4Test::constructParts() {
diff --git a/src/Math/Test/VectorTest.cpp b/src/Math/Test/VectorTest.cpp
index dd5d1c553..47d194992 100644
--- a/src/Math/Test/VectorTest.cpp
+++ b/src/Math/Test/VectorTest.cpp
@@ -165,6 +165,9 @@ void VectorTest::constructOneValue() {
     #endif
 
     CORRADE_COMPARE(a, Vector4(7.25f, 7.25f, 7.25f, 7.25f));
+
+    /* Implicit conversion is not allowed */
+    CORRADE_VERIFY(!(std::is_convertible<Float, Vector4>::value));
 }
 
 void VectorTest::constructOneComponent() {