diff -r efd9c589177a -r c0b4a8b5a012 toolkit/javascript/d3/test/geo/equirectangular-test.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/toolkit/javascript/d3/test/geo/equirectangular-test.js	Thu Apr 10 14:20:23 2014 +0200
@@ -0,0 +1,50 @@
+require("../env");
+require("../../d3");
+require("../../d3.geo");
+
+var vows = require("vows"),
+    assert = require("assert");
+
+var suite = vows.describe("d3.geo.equirectangular");
+
+suite.addBatch({
+  "equirectangular": {
+    topic: function() {
+      return d3.geo.equirectangular();
+    },
+
+    "scale": {
+      "defaults to 500": function(projection) {
+        assert.equal(projection.scale(), 500);
+      },
+      "is coerced to a number": function(projection) {
+        assert.strictEqual(projection.scale("400"), projection);
+        assert.strictEqual(projection.scale(), 400);
+        projection.scale(500);
+      }
+    },
+
+    "translate": {
+      "defaults to [480, 250]": function(projection) {
+        assert.deepEqual(projection.translate(), [480, 250]);
+      },
+      "is coerced to two numbers": function(projection) {
+        assert.strictEqual(projection.translate(["23", "141"]), projection);
+        assert.strictEqual(projection.translate()[0], 23);
+        assert.strictEqual(projection.translate()[1], 141);
+        projection.translate([480, 250]);
+      }
+    },
+
+    "of San Francisco, CA": {
+      "is at location [-122.446, 37.767]": function(projection) {
+        assert.inDelta(projection.invert([310, 198]), [-122.446, 37.767], .5);
+      },
+      "is at point [310, 198]": function(projection) {
+        assert.inDelta(projection([-122.446, 37.767]), [310, 198], .5);
+      }
+    }
+  }
+});
+
+suite.export(module);