From 6efd3dab0ba25e7ac1265dff6ebf4680fed6d37c Mon Sep 17 00:00:00 2001
From: Andreas Hocevar <andreas.hocevar@gmail.com>
Date: Thu, 7 Apr 2016 18:03:57 +0200
Subject: [PATCH] Add rendering tests to ensure correct circle and polygon
 rendering (#5189)

---
 .../spec/ol/layer/expected/vector-canvas.png  | Bin 0 -> 2193 bytes
 test_rendering/spec/ol/layer/vector.test.js   |  77 ++++++++++++++++++
 2 files changed, 77 insertions(+)
 create mode 100644 test_rendering/spec/ol/layer/expected/vector-canvas.png
 create mode 100644 test_rendering/spec/ol/layer/vector.test.js

diff --git a/test_rendering/spec/ol/layer/expected/vector-canvas.png b/test_rendering/spec/ol/layer/expected/vector-canvas.png
new file mode 100644
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diff --git a/test_rendering/spec/ol/layer/vector.test.js b/test_rendering/spec/ol/layer/vector.test.js
new file mode 100644
index 0000000000..eaea34aac5
--- /dev/null
+++ b/test_rendering/spec/ol/layer/vector.test.js
@@ -0,0 +1,77 @@
+goog.provide('ol.test.rendering.layer.Vector');
+
+describe('ol.rendering.layer.Vector', function() {
+
+  var center, target, map;
+
+  function createMap(renderer) {
+    target = createMapDiv(80, 80);
+    center = [1825927.7316762917, 6143091.089223046];
+
+    map = new ol.Map({
+      target: target,
+      renderer: renderer,
+      view: new ol.View({
+        center: center,
+        zoom: 13
+      })
+    });
+    return map;
+  }
+
+  var source;
+
+  function addCircle(r) {
+    source.addFeature(new ol.Feature(new ol.geom.Circle(center, r)));
+  }
+
+  function addPolygon(r) {
+    source.addFeature(new ol.Feature(new ol.geom.Polygon([
+      [
+        [center[0] - r, center[1] - r],
+        [center[0] + r, center[1] - r],
+        [center[0] + r, center[1] + r],
+        [center[0] - r, center[1] + r],
+        [center[0] - r, center[1] - r]
+      ]
+    ])))
+  }
+
+  describe('vector layer', function() {
+
+    beforeEach(function() {
+      source = new ol.source.Vector();
+    });
+
+    afterEach(function() {
+      disposeMap(map);
+    });
+
+    it('renders correctly with the canvas renderer', function(done) {
+      map = createMap('canvas');
+      addPolygon(100);
+      addCircle(200);
+      addPolygon(250);
+      addCircle(500);
+      addPolygon(600);
+      addPolygon(720);
+      map.addLayer(new ol.layer.Vector({
+        source: source
+      }));
+      map.once('postrender', function() {
+        expectResemble(map, 'spec/ol/layer/expected/vector-canvas.png',
+            17, done);
+      })
+    });
+
+  });
+
+});
+
+goog.require('ol.Map');
+goog.require('ol.View');
+goog.require('ol.Feature');
+goog.require('ol.geom.Circle');
+goog.require('ol.geom.Polygon');
+goog.require('ol.layer.Vector');
+goog.require('ol.source.Vector');