From bc9068efda77bbd91b9f136b716fb5659409d5d8 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Vladim=C3=ADr=20Vondru=C5=A1?= <mosra@centrum.cz>
Date: Thu, 4 Jul 2019 19:30:14 +0200
Subject: [PATCH] GL: harden multi-Context test.

---
 src/Magnum/GL/Test/ContextGLTest.cpp | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/src/Magnum/GL/Test/ContextGLTest.cpp b/src/Magnum/GL/Test/ContextGLTest.cpp
index a53821494..1e79fc27e 100644
--- a/src/Magnum/GL/Test/ContextGLTest.cpp
+++ b/src/Magnum/GL/Test/ContextGLTest.cpp
@@ -28,6 +28,7 @@
 #include "Magnum/GL/Context.h"
 #include "Magnum/GL/Extensions.h"
 #include "Magnum/GL/OpenGLTester.h"
+#include "Magnum/Platform/GLContext.h"
 
 #ifndef CORRADE_TARGET_EMSCRIPTEN
 #include <thread>
@@ -78,6 +79,15 @@ void ContextGLTest::makeCurrent() {
 
     CORRADE_VERIFY(!Context::hasCurrent());
 
+    {
+        const char* argv[]{"", "--magnum-log", "off"};
+        Platform::GLContext ctx{Int(Containers::arraySize(argv)), argv};
+
+        CORRADE_VERIFY(Context::hasCurrent());
+    }
+
+    CORRADE_VERIFY(!Context::hasCurrent());
+
     Context::makeCurrent(&current);
 
     CORRADE_VERIFY(Context::hasCurrent());