From 6241adfd20f9ac34581ebf5cce09c32f8910c0d8 Mon Sep 17 00:00:00 2001
From: Ian Butterworth <i.r.butterworth@gmail.com>
Date: Fri, 22 Sep 2023 21:43:06 -0400
Subject: [PATCH] use demo for tests

---
 Project.toml     |  3 ++-
 demo/demo.jl     | 12 +++++++++++-
 test/runtests.jl |  4 +++-
 3 files changed, 16 insertions(+), 3 deletions(-)

diff --git a/Project.toml b/Project.toml
index e850e9e..3ba52d7 100644
--- a/Project.toml
+++ b/Project.toml
@@ -23,7 +23,8 @@ Preferences = "1"
 julia = "1.6"
 
 [extras]
+Printf = "de0858da-6303-5e67-8744-51eddeeeb8d7"
 Test = "8dfed614-e22c-5e08-85e1-65c5234f0b40"
 
 [targets]
-test = ["Test"]
+test = ["Printf","Test"]
diff --git a/demo/demo.jl b/demo/demo.jl
index 82c9913..3dc4137 100644
--- a/demo/demo.jl
+++ b/demo/demo.jl
@@ -63,6 +63,14 @@ ImGuiGLFWBackend.init(glfw_ctx)
 opengl_ctx = ImGuiOpenGLBackend.create_context(glsl_version)
 ImGuiOpenGLBackend.init(opengl_ctx)
 
+# for tests
+if haskey(ENV, "AUTO_CLOSE_DEMO")
+    tsecs = parse(Int, ENV["AUTO_CLOSE_DEMO"])
+    Timer(tsecs) do t
+        glfwSetWindowShouldClose(window, true)
+    end
+end
+
 try
     show_demo_window = true
     show_another_window = false
@@ -112,7 +120,7 @@ try
         glfwGetFramebufferSize(window, width, height)
         display_w = width[]
         display_h = height[]
-        
+
         glViewport(0, 0, display_w, display_h)
         glClearColor(clear_color...)
         glClear(GL_COLOR_BUFFER_BIT)
@@ -120,6 +128,8 @@ try
 
         glfwMakeContextCurrent(window)
         glfwSwapBuffers(window)
+
+        yield() # to allow shutdown timer to run
     end
 catch e
     @error "Error in renderloop!" exception=e
diff --git a/test/runtests.jl b/test/runtests.jl
index ba60aff..49d8dbd 100644
--- a/test/runtests.jl
+++ b/test/runtests.jl
@@ -2,5 +2,7 @@ using CImGui
 using Test
 
 @testset "CImGui.jl" begin
-    # Write your own tests here.
+    withenv("AUTO_CLOSE_DEMO" => "5") do
+        include(joinpath("..", "demo", "demo.jl"))
+    end
 end