diff -r efd9c589177a -r c0b4a8b5a012 toolkit/javascript/d3/test/core/max-test.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/toolkit/javascript/d3/test/core/max-test.js	Thu Apr 10 14:20:23 2014 +0200
@@ -0,0 +1,51 @@
+require("../env");
+require("../../d3");
+
+var vows = require("vows"),
+    assert = require("assert");
+
+var suite = vows.describe("d3.max");
+
+suite.addBatch({
+  "max": {
+    topic: function() {
+      return d3.max;
+    },
+    "returns the greatest numeric value for numbers": function(max) {
+      assert.equal(max([1]), 1);
+      assert.equal(max([5, 1, 2, 3, 4]), 5);
+      assert.equal(max([20, 3]), 20);
+      assert.equal(max([3, 20]), 20);
+    },
+    "returns the greatest lexicographic value for strings": function(max) {
+      assert.equal(max(["c", "a", "b"]), "c");
+      assert.equal(max(["20", "3"]), "3");
+      assert.equal(max(["3", "20"]), "3");
+    },
+    "ignores null, undefined and NaN": function(max) {
+      assert.equal(max([NaN, 1, 2, 3, 4, 5]), 5);
+      assert.equal(max([1, 2, 3, 4, 5, NaN]), 5);
+      assert.equal(max([10, null, 3, undefined, 5, NaN]), 10);
+      assert.equal(max([-1, null, -3, undefined, -5, NaN]), -1);
+    },
+    "compares heterogenous types as numbers": function(max) {
+      assert.strictEqual(max([20, "3"]), 20);
+      assert.strictEqual(max(["20", 3]), "20");
+      assert.strictEqual(max([3, "20"]), "20");
+      assert.strictEqual(max(["3", 20]), 20);
+    },
+    "returns undefined for empty array": function(max) {
+      assert.isUndefined(max([]));
+      assert.isUndefined(max([null]));
+      assert.isUndefined(max([undefined]));
+      assert.isUndefined(max([NaN]));
+      assert.isUndefined(max([NaN, NaN]));
+    },
+    "applies the optional accessor function": function(max) {
+      assert.equal(d3.max([[1, 2, 3, 4, 5], [2, 4, 6, 8, 10]], function(d) { return d3.min(d); }), 2);
+      assert.equal(d3.max([1, 2, 3, 4, 5], function(d, i) { return i; }), 4);
+    }
+  }
+});
+
+suite.export(module);