Dedicated module for transforms cache

test/spec/ol/proj/transforms.test.js

@@ -0,0 +1,36 @@
+goog.provide('ol.test.proj.transforms');
+
+goog.require('ol.proj.Projection');
+goog.require('ol.proj.transforms');
+
+
+describe('ol.proj.transforms.remove()', function() {
+
+  var extent = [180, -90, 180, 90];
+  var units = 'degrees';
+
+  it('removes functions cached by ol.proj.transforms.add()', function() {
+    var foo = new ol.proj.Projection({
+      code: 'foo',
+      units: units,
+      extent: extent
+    });
+    var bar = new ol.proj.Projection({
+      code: 'bar',
+      units: units,
+      extent: extent
+    });
+    var transform = function(input, output, dimension) {
+      return input;
+    };
+    ol.proj.transforms.add(foo, bar, transform);
+    expect(ol.proj.transforms.cache_).not.to.be(undefined);
+    expect(ol.proj.transforms.cache_.foo).not.to.be(undefined);
+    expect(ol.proj.transforms.cache_.foo.bar).to.be(transform);
+
+    var removed = ol.proj.transforms.remove(foo, bar);
+    expect(removed).to.be(transform);
+    expect(ol.proj.transforms.cache_.foo).to.be(undefined);
+  });
+
+});