--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/toolkit/javascript/d3/test/geo/albers-test.js	Thu Apr 10 14:20:23 2014 +0200
@@ -0,0 +1,57 @@
+require("../env");
+require("../../d3");
+require("../../d3.geo");
+
+var vows = require("vows"),
+    assert = require("assert");
+
+var suite = vows.describe("d3.geo.albers");
+
+suite.addBatch({
+  "albers": {
+    topic: function() {
+      return d3.geo.albers();
+    },
+    "Arctic": function(albers) {
+      var coords = albers([0, 85]);
+      assert.inDelta(coords[0], 1031.393796, 1e-6);
+      assert.inDelta(coords[1], -714.160436, 1e-6);
+      var lonlat = albers.invert(coords);
+      assert.inDelta(lonlat[0], 0, 1e-6);
+      assert.inDelta(lonlat[1], 85, 1e-6);
+    },
+    "Antarctic": function(albers) {
+      var coords = albers([0, -85]);
+      assert.inDelta(coords[0], 2753.458335, 1e-6);
+      assert.inDelta(coords[1],  317.371122, 1e-6);
+      var lonlat = albers.invert(coords);
+      assert.inDelta(lonlat[0], 0, 1e-6);
+      assert.inDelta(lonlat[1], -85, 1e-6);
+    },
+    "Hawaii": function(albers) {
+      var coords = albers([-180, 0]);
+      assert.inDelta(coords[0], -984.779405, 1e-6);
+      assert.inDelta(coords[1],  209.571197, 1e-6);
+      var lonlat = albers.invert(coords);
+      assert.inDelta(lonlat[0], -180, 1e-6);
+      assert.inDelta(lonlat[1], 0, 1e-6);
+    },
+    "Phillipines": function(albers) {
+      var coords = albers([180, 0]);
+      assert.inDelta(coords[0],   894.435228, 1e-6);
+      assert.inDelta(coords[1], -2927.636630, 1e-6);
+      var lonlat = albers.invert(coords);
+      assert.inDelta(lonlat[0], 180, 1e-6);
+      assert.inDelta(lonlat[1], 0, 1e-6);
+    },
+    "Inversion works for non-zero translation": function() {
+      var albers = d3.geo.albers().translate([123, 99]).scale(100),
+          coords = albers([0, 85]),
+          lonlat = albers.invert(coords);
+      assert.inDelta(lonlat[0], 0, 1e-6);
+      assert.inDelta(lonlat[1], 85, 1e-6);
+    }
+  }
+});
+
+suite.export(module);