Separate literals from symbolizers

test/spec/ol/style/polygonsymbolizer.test.js

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+goog.provide('ol.test.style.Polygon');
+
+describe('ol.style.Polygon', function() {
+
+  describe('constructor', function() {
+
+    it('accepts literal values', function() {
+      var symbolizer = new ol.style.Polygon({
+        fillColor: '#BADA55',
+        strokeWidth: 3
+      });
+      expect(symbolizer).to.be.a(ol.style.Polygon);
+    });
+
+    it('accepts expressions', function() {
+      var symbolizer = new ol.style.Polygon({
+        fillOpacity: ol.expr.parse('value / 100'),
+        fillColor: ol.expr.parse('fillAttr')
+      });
+      expect(symbolizer).to.be.a(ol.style.Polygon);
+    });
+
+  });
+
+  describe('#createLiteral()', function() {
+
+    it('evaluates expressions with the given feature', function() {
+      var symbolizer = new ol.style.Polygon({
+        fillOpacity: ol.expr.parse('value / 100'),
+        fillColor: ol.expr.parse('fillAttr')
+      });
+
+      var feature = new ol.Feature({
+        value: 42,
+        fillAttr: '#ff0000'
+      });
+
+      var literal = symbolizer.createLiteral(feature);
+      expect(literal).to.be.a(ol.style.PolygonLiteral);
+      expect(literal.fillOpacity).to.be(42 / 100);
+      expect(literal.fillColor).to.be('#ff0000');
+      expect(literal.strokeColor).to.be(undefined);
+    });
+
+    it('applies default strokeWidth if only strokeColor is given', function() {
+      var symbolizer = new ol.style.Polygon({
+        strokeColor: '#ff0000'
+      });
+
+      var literal = symbolizer.createLiteral();
+      expect(literal).to.be.a(ol.style.PolygonLiteral);
+      expect(literal.strokeColor).to.be('#ff0000');
+      expect(literal.strokeWidth).to.be(1.5);
+      expect(literal.fillColor).to.be(undefined);
+    });
+
+  });
+
+  describe('#getFillColor()', function() {
+
+    it('returns the fill color', function() {
+      var symbolizer = new ol.style.Polygon({
+        fillColor: '#ff0000'
+      });
+
+      var fillColor = symbolizer.getFillColor();
+      expect(fillColor).to.be.a(ol.expr.Literal);
+      expect(fillColor.getValue()).to.be('#ff0000');
+    });
+
+  });
+
+  describe('#getFillOpacity()', function() {
+
+    it('returns the fill opacity', function() {
+      var symbolizer = new ol.style.Polygon({
+        fillColor: '#ffffff',
+        fillOpacity: 0.123
+      });
+
+      var opacity = symbolizer.getFillOpacity();
+      expect(opacity).to.be.a(ol.expr.Literal);
+      expect(opacity.getValue()).to.be(0.123);
+    });
+
+  });
+
+  describe('#getStrokeColor()', function() {
+
+    it('returns the stroke color', function() {
+      var symbolizer = new ol.style.Polygon({
+        strokeColor: '#ff0000'
+      });
+
+      var strokeColor = symbolizer.getStrokeColor();
+      expect(strokeColor).to.be.a(ol.expr.Literal);
+      expect(strokeColor.getValue()).to.be('#ff0000');
+    });
+
+  });
+
+  describe('#getStrokeWidth()', function() {
+
+    it('returns the stroke width', function() {
+      var symbolizer = new ol.style.Polygon({
+        strokeWidth: 10
+      });
+
+      var strokeWidth = symbolizer.getStrokeWidth();
+      expect(strokeWidth).to.be.a(ol.expr.Literal);
+      expect(strokeWidth.getValue()).to.be(10);
+    });
+
+  });
+
+  describe('#getStrokeOpacity()', function() {
+
+    it('returns the stroke opacity', function() {
+      var symbolizer = new ol.style.Polygon({
+        strokeWidth: 1,
+        strokeOpacity: 0.123
+      });
+
+      var opacity = symbolizer.getStrokeOpacity();
+      expect(opacity).to.be.a(ol.expr.Literal);
+      expect(opacity.getValue()).to.be(0.123);
+    });
+
+  });
+
+  describe('#setFillColor()', function() {
+
+    it('sets the fill color', function() {
+      var symbolizer = new ol.style.Polygon({
+        fillColor: '#ff0000'
+      });
+
+      symbolizer.setFillColor(new ol.expr.Literal('#0000ff'));
+
+      var fillColor = symbolizer.getFillColor();
+      expect(fillColor).to.be.a(ol.expr.Literal);
+      expect(fillColor.getValue()).to.be('#0000ff');
+    });
+
+    it('throws when not provided an expression', function() {
+      var symbolizer = new ol.style.Polygon({
+        fillColor: '#ff0000'
+      });
+
+      expect(function() {
+        symbolizer.setFillColor('#0000ff');
+      }).throwException(function(err) {
+        expect(err).to.be.a(goog.asserts.AssertionError);
+      });
+    });
+
+  });
+
+  describe('#setStrokeColor()', function() {
+
+    it('sets the stroke color', function() {
+      var symbolizer = new ol.style.Polygon({
+        strokeColor: '#ff0000'
+      });
+
+      symbolizer.setStrokeColor(new ol.expr.Literal('#0000ff'));
+
+      var strokeColor = symbolizer.getStrokeColor();
+      expect(strokeColor).to.be.a(ol.expr.Literal);
+      expect(strokeColor.getValue()).to.be('#0000ff');
+    });
+
+    it('throws when not provided an expression', function() {
+      var symbolizer = new ol.style.Polygon({
+        strokeColor: '#ff0000'
+      });
+
+      expect(function() {
+        symbolizer.setStrokeColor('#0000ff');
+      }).throwException(function(err) {
+        expect(err).to.be.a(goog.asserts.AssertionError);
+      });
+    });
+
+  });
+
+  describe('#setStrokeWidth()', function() {
+
+    it('sets the stroke width', function() {
+      var symbolizer = new ol.style.Polygon({
+        strokeWidth: 10
+      });
+      symbolizer.setStrokeWidth(new ol.expr.Literal(20));
+
+      var strokeWidth = symbolizer.getStrokeWidth();
+      expect(strokeWidth).to.be.a(ol.expr.Literal);
+      expect(strokeWidth.getValue()).to.be(20);
+    });
+
+    it('throws when not provided an expression', function() {
+      var symbolizer = new ol.style.Polygon({
+        strokeWidth: 10
+      });
+
+      expect(function() {
+        symbolizer.setStrokeWidth(10);
+      }).throwException(function(err) {
+        expect(err).to.be.a(goog.asserts.AssertionError);
+      });
+    });
+
+  });
+
+  describe('#setStrokeOpacity()', function() {
+
+    it('sets the stroke opacity', function() {
+      var symbolizer = new ol.style.Polygon({
+        strokeWidth: 1,
+        strokeOpacity: 0.123
+      });
+      symbolizer.setStrokeOpacity(new ol.expr.Literal(0.321));
+
+      var opacity = symbolizer.getStrokeOpacity();
+      expect(opacity).to.be.a(ol.expr.Literal);
+      expect(opacity.getValue()).to.be(0.321);
+    });
+
+    it('throws when not provided an expression', function() {
+      var symbolizer = new ol.style.Polygon({
+        strokeWidth: 1,
+        strokeOpacity: 1
+      });
+
+      expect(function() {
+        symbolizer.setStrokeOpacity(0.5);
+      }).throwException(function(err) {
+        expect(err).to.be.a(goog.asserts.AssertionError);
+      });
+    });
+
+  });
+
+});
+
+goog.require('goog.asserts.AssertionError');
+
+goog.require('ol.Feature');
+goog.require('ol.expr');
+goog.require('ol.expr.Literal');
+goog.require('ol.style.Polygon');
+goog.require('ol.style.PolygonLiteral');