diff -r efd9c589177a -r c0b4a8b5a012 toolkit/javascript/d3/test/geo/bonne-test.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/toolkit/javascript/d3/test/geo/bonne-test.js	Thu Apr 10 14:20:23 2014 +0200
@@ -0,0 +1,116 @@
+require("../env");
+require("../../d3");
+require("../../d3.geo");
+
+var vows = require("vows"),
+    assert = require("assert");
+
+var suite = vows.describe("d3.geo.bonne");
+
+suite.addBatch({
+  "default instance": {
+    topic: function() {
+      return d3.geo.bonne();
+    },
+    "scale defaults to 200": function(bonne) {
+      assert.equal(bonne.scale(), 200);
+    },
+    "parallel defaults to 45°": function(bonne) {
+      assert.equal(bonne.parallel(), 45);
+    },
+    "origin defaults to [0,0]": function(bonne) {
+      assert.deepEqual(bonne.origin(), [0, 0]);
+    },
+    "translate defaults to [480, 250]": function(bonne) {
+      assert.deepEqual(bonne.translate(), [480, 250]);
+    }
+  },
+
+  "Bonne at 40° parallel": {
+    topic: function() {
+      return d3.geo.bonne().parallel(40);
+    },
+    "Arctic": function(bonne) {
+      var lonlat = [0, 85],
+          coords = bonne(lonlat);
+      assert.inDelta(coords, [480, 92.920367], 1e-6);
+      assert.inDelta(bonne.invert(coords), lonlat, 1e-6);
+    },
+    "Antarctic": function(bonne) {
+      var lonlat = [0, -85],
+          coords = bonne(lonlat);
+      assert.inDelta(coords, [480, 686.332312], 1e-6);
+      assert.inDelta(bonne.invert(coords), lonlat, 1e-6);
+    },
+    "Hawaii": function(bonne) {
+      var lonlat = [-180, 0],
+          coords = bonne(lonlat);
+      assert.inDelta(coords, [103.604887, -22.895998], 1e-6);
+      assert.inDelta(bonne.invert(coords), lonlat, 1e-6);
+    },
+    "Phillipines": function(bonne) {
+      var lonlat = [180, 0],
+          coords = bonne(lonlat);
+      assert.inDelta(coords, [856.395112, -22.895998], 1e-6);
+      assert.inDelta(bonne.invert(coords), lonlat, 1e-6);
+    },
+    "invert observes translation": function() {
+      var bonne = d3.geo.bonne().translate([123, 99]).scale(100),
+          coords = bonne([0, 85]),
+          lonlat = bonne.invert(coords);
+      assert.inDelta(lonlat[0], 0, 1e-6);
+      assert.inDelta(lonlat[1], 85, 1e-6);
+    },
+    "invert(project(location)) equals location": function(bonne) {
+      for (var i = -1; i < 20; ++i) {
+        var location = [Math.random() * 360 - 180, Math.random() * 180 - 90];
+        assert.inDelta(location, bonne.invert(bonne(location)), .5);
+      }
+    },
+    "project(invert(point)) equals point": function(bonne) {
+      for (var i = -1; i < 20; ++i) {
+        var point = [Math.random() * 700 + 100, Math.random() * 400 + 50];
+        assert.inDelta(point, bonne(bonne.invert(point)), .5);
+      }
+    }
+  },
+
+  "Werner": {
+    topic: function() {
+      return d3.geo.bonne().parallel(90);
+    },
+    "invert(project(location)) equals location": function(bonne) {
+      for (var i = -1; i < 20; ++i) {
+        var location = [Math.random() * 360 - 180, Math.random() * 180 - 90];
+        assert.inDelta(location, bonne.invert(bonne(location)), .5);
+      }
+    },
+    "project(invert(point)) equals point": function(bonne) {
+      for (var i = -1; i < 20; ++i) {
+        var point = [Math.random() * 700 + 100, Math.random() * 400 + 50];
+        assert.inDelta(point, bonne(bonne.invert(point)), .5);
+      }
+    }
+  },
+
+  "Sinsuoidal": {
+    topic: function() {
+      return d3.geo.bonne().parallel(0);
+    },
+    "invert(project(location)) equals location": function(bonne) {
+      for (var i = -1; i < 20; ++i) {
+        var location = [Math.random() * 360 - 180, Math.random() * 180 - 90];
+        assert.inDelta(location, bonne.invert(bonne(location)), .5);
+      }
+    },
+    "project(invert(point)) equals point": function(bonne) {
+      for (var i = -1; i < 20; ++i) {
+        var point = [Math.random() * 700 + 100, Math.random() * 400 + 50];
+        assert.inDelta(point, bonne(bonne.invert(point)), .5);
+      }
+    }
+  }
+
+});
+
+suite.export(module);