From 3f081329b7839ed1fa52febbc97c69a5f7c1f548 Mon Sep 17 00:00:00 2001
From: Luke San Antonio Bialecki <lukesanantonio@gmail.com>
Date: Thu, 26 Jul 2018 11:51:50 -0400
Subject: [PATCH] Add regression test for issue #6812

---
 Specs/Scene/SceneSpec.js | 26 ++++++++++++++++++++++++++
 1 file changed, 26 insertions(+)

diff --git a/Specs/Scene/SceneSpec.js b/Specs/Scene/SceneSpec.js
index c9bbbb8073a8..3faf61d56441 100644
--- a/Specs/Scene/SceneSpec.js
+++ b/Specs/Scene/SceneSpec.js
@@ -1357,6 +1357,32 @@ defineSuite([
         scene.destroyForSpecs();
     });
 
+    it('changing the camera frustum does not cause continuous rendering in requestRenderMode', function() {
+        var scene = createScene();
+
+        scene.renderForSpecs();
+
+        var lastRenderTime = JulianDate.clone(scene.lastRenderTime, scratchTime);
+        expect(lastRenderTime).toBeDefined();
+        expect(scene._renderRequested).toBe(false);
+
+        scene.requestRenderMode = true;
+        scene.maximumRenderTimeChange = undefined;
+
+        scene.camera.frustum.near *= 1.1;
+
+        // Render once properly
+        scene.renderForSpecs();
+        expect(scene.lastRenderTime).not.toEqual(lastRenderTime);
+
+        // Render again - but this time nothing should happen.
+        lastRenderTime = JulianDate.clone(scene.lastRenderTime, scratchTime);
+        scene.renderForSpecs();
+        expect(scene.lastRenderTime).toEqual(lastRenderTime);
+
+        scene.destroyForSpecs();
+    });
+
     it('successful completed requests causes a new frame to be rendered in requestRenderMode', function() {
         var scene = createScene();