From 00275f1a67bcc5389d4aa1c0b61c5f6fea322f26 Mon Sep 17 00:00:00 2001
From: mike-000 <49240900+mike-000@users.noreply.github.com>
Date: Thu, 20 Feb 2020 15:25:32 +0000
Subject: [PATCH] Draw labels in a postrender function

---
 test/spec/ol/graticule.test.js | 16 +++++++++++++++-
 1 file changed, 15 insertions(+), 1 deletion(-)

diff --git a/test/spec/ol/graticule.test.js b/test/spec/ol/graticule.test.js
index 78533e8136..c3e9ed0499 100644
--- a/test/spec/ol/graticule.test.js
+++ b/test/spec/ol/graticule.test.js
@@ -46,7 +46,21 @@ describe('ol.layer.Graticule', function() {
       const squaredTolerance = resolution * resolution / 4.0;
       graticule.updateProjectionInfo_(projection);
       graticule.createGraticule_(extent, [0, 0], resolution, squaredTolerance);
-      graticule.drawLabels_({frameState: {extent: extent, viewState: {rotation: 0}}});
+      const event = {
+        context: document.createElement('canvas').getContext('2d'),
+        inversePixelTransform: [1, 0, 0, 1, 0, 0],
+        frameState: {
+          coordinateToPixelTransform: [1, 0, 0, 1, 0, 0],
+          extent: extent,
+          pixelRatio: 1,
+          viewState: {
+            projection: projection,
+            resolution: resolution,
+            rotation: 0
+          }
+        }
+      };
+      graticule.drawLabels_(event);
       expect(graticule.meridiansLabels_.length).to.be(13);
       expect(graticule.meridiansLabels_[0].text).to.be('0° 00′ 00″');
       expect(graticule.meridiansLabels_[0].geom.getCoordinates()[0]).to.roughlyEqual(0, 1e-9);