From 0cb0ea2a8a1334cbead698bbfa5c56c5546a9d2c Mon Sep 17 00:00:00 2001
From: GaborFarkas <raandal73@gmail.com>
Date: Wed, 2 Nov 2016 18:38:18 +0100
Subject: [PATCH] Add tests for ol.render.webgl.CircleReplay

---
 .../spec/ol/render/webgl/circlereplay.test.js | 95 +++++++++++++++++++
 1 file changed, 95 insertions(+)
 create mode 100644 test/spec/ol/render/webgl/circlereplay.test.js

diff --git a/test/spec/ol/render/webgl/circlereplay.test.js b/test/spec/ol/render/webgl/circlereplay.test.js
new file mode 100644
index 0000000000..e81058b618
--- /dev/null
+++ b/test/spec/ol/render/webgl/circlereplay.test.js
@@ -0,0 +1,95 @@
+goog.provide('ol.test.render.webgl.CircleReplay');
+
+goog.require('ol.geom.Circle');
+goog.require('ol.render.webgl.CircleReplay');
+goog.require('ol.style.Fill');
+goog.require('ol.style.Stroke');
+
+describe('ol.render.webgl.CircleReplay', function() {
+  var replay;
+
+  var strokeStyle = new ol.style.Stroke({
+    color: [0, 255, 0, 0.4]
+  });
+
+  var fillStyle = new ol.style.Fill({
+    color: [255, 0, 0, 1]
+  });
+
+  beforeEach(function() {
+    var tolerance = 0.1;
+    var maxExtent = [-10000, -20000, 10000, 20000];
+    replay = new ol.render.webgl.CircleReplay(tolerance, maxExtent);
+  });
+
+  describe('#setFillStrokeStyle', function() {
+    it('set expected states', function() {
+      replay.setFillStrokeStyle(fillStyle, strokeStyle);
+      expect(replay.state_).not.be(null);
+      expect(replay.state_.strokeColor).to.eql([0, 1, 0, 0.4]);
+      expect(replay.state_.lineWidth).to.be(1);
+      expect(replay.state_.fillColor).to.eql([1, 0, 0, 1]);
+      expect(replay.state_.changed).to.be(true);
+      expect(replay.styles_).to.have.length(1);
+    });
+
+    it('sets a transparent stroke, if none provided', function() {
+      replay.setFillStrokeStyle(fillStyle, null);
+      expect(replay.state_.strokeColor).to.eql([0, 0, 0, 0]);
+    });
+
+    it('sets a transparent fill, if none provided', function() {
+      replay.setFillStrokeStyle(null, strokeStyle);
+      expect(replay.state_.fillColor).to.eql([0, 0, 0, 0]);
+    });
+  });
+
+  describe('#drawCircle', function() {
+    it('sets the buffer data', function() {
+      var circle = new ol.geom.Circle([0,0], 5000);
+
+      replay.setFillStrokeStyle(fillStyle, strokeStyle);
+      replay.drawCircle(circle, null);
+      expect(replay.vertices).to.have.length(12);
+      expect(replay.indices).to.have.length(3);
+      expect(replay.state_.changed).to.be(false);
+      expect(replay.startIndices).to.have.length(1);
+      expect(replay.startIndicesFeature).to.have.length(1);
+      expect(replay.radius_).to.be(5000);
+    });
+
+    it('does not draw if radius is zero', function() {
+      var circle = new ol.geom.Circle([0,0], 0);
+
+      replay.drawCircle(circle, null);
+      expect(replay.vertices).to.have.length(0);
+      expect(replay.indices).to.have.length(0);
+      expect(replay.startIndices).to.have.length(0);
+      expect(replay.startIndicesFeature).to.have.length(0);
+    });
+
+    it('resets state and removes style if it belongs to a zero radius circle', function() {
+      var circle = new ol.geom.Circle([0,0], 0);
+
+      replay.setFillStrokeStyle(fillStyle, strokeStyle);
+      replay.setFillStrokeStyle(null, strokeStyle);
+      replay.drawCircle(circle, null);
+      expect(replay.styles_).to.have.length(1);
+      expect(replay.state_).not.be(null);
+      expect(replay.state_.strokeColor).to.eql([0, 1, 0, 0.4]);
+      expect(replay.state_.lineWidth).to.be(1);
+      expect(replay.state_.fillColor).to.eql([1, 0, 0, 1]);
+      expect(replay.state_.changed).to.be(false);
+    });
+  });
+
+  describe('#drawCoordinates_', function() {
+    it('envelopes the circle into a right isosceles triangle', function() {
+      replay.radius_ = 5000;
+      replay.drawCoordinates_([0, 0], 0, 2, 2);
+
+      expect(replay.vertices).to.eql([0, 0, 0, 5000, 0, 0, 1, 5000, 0, 0, 2, 5000]);
+      expect(replay.indices).to.eql([0, 1, 2]);
+    });
+  });
+});