From 7accf94c38fe5cc4496c3be049ac1247b857602b Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Vladim=C3=ADr=20Vondru=C5=A1?= <mosra@centrum.cz>
Date: Wed, 22 Feb 2023 11:49:01 +0100
Subject: [PATCH] GL: cover the singular Framebuffer::mapForDraw() with tests
 as well.

---
 src/Magnum/GL/Test/FramebufferGLTest.cpp | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/src/Magnum/GL/Test/FramebufferGLTest.cpp b/src/Magnum/GL/Test/FramebufferGLTest.cpp
index c1bcad208..6ea81610c 100644
--- a/src/Magnum/GL/Test/FramebufferGLTest.cpp
+++ b/src/Magnum/GL/Test/FramebufferGLTest.cpp
@@ -1107,6 +1107,13 @@ void FramebufferGLTest::multipleColorOutputs() {
     MAGNUM_VERIFY_NO_GL_ERROR();
     CORRADE_COMPARE(framebuffer.checkStatus(FramebufferTarget::Read), Framebuffer::Status::Complete);
     CORRADE_COMPARE(framebuffer.checkStatus(FramebufferTarget::Draw), Framebuffer::Status::Complete);
+
+    /* Mapping just a single output. The comment re EXT_draw_buffers applies
+       here as well, so we can map just the 0th attachment, no other one. */
+    framebuffer.mapForDraw(Framebuffer::ColorAttachment{0});
+
+    MAGNUM_VERIFY_NO_GL_ERROR();
+    CORRADE_COMPARE(framebuffer.checkStatus(FramebufferTarget::Draw), Framebuffer::Status::Complete);
 }
 
 void FramebufferGLTest::clear() {