diff -r efd9c589177a -r c0b4a8b5a012 toolkit/javascript/d3/test/svg/axis-test.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/toolkit/javascript/d3/test/svg/axis-test.js	Thu Apr 10 14:20:23 2014 +0200
@@ -0,0 +1,347 @@
+require("../env");
+require("../../d3");
+
+var vows = require("vows"),
+    assert = require("assert");
+
+var suite = vows.describe("d3.svg.axis");
+
+suite.addBatch({
+  "axis": {
+    topic: function() {
+      return d3.svg.axis;
+    },
+
+    "scale": {
+      "defaults to a linear scale": function(axis) {
+        var a = axis(), x = a.scale();
+        assert.deepEqual(x.domain(), [0, 1]);
+        assert.deepEqual(x.range(), [0, 1]);
+        assert.equal(x(0.5), 0.5);
+      },
+      "can be defined as a scale object": function(axis) {
+        var x = d3.scale.linear(), a = axis().scale(x);
+        assert.equal(a.scale(), x);
+      },
+      "can be a polylinear scale": function(axis) {
+        var a = axis().scale(d3.scale.linear().domain([0, 1, 10]).range([2, 20, 200])),
+            g = d3.select("body").html("").append("svg:g").call(a),
+            path = g.selectAll("path");
+        assert.equal(path.attr("d"), "M2,6V0H200V6");
+      }
+    },
+
+    "orient": {
+      "defaults to bottom": function(axis) {
+        var a = axis();
+        assert.equal(a.orient(), "bottom");
+      },
+      "supports top orientation": function(axis) {
+        var a = axis().orient("top"),
+            g = d3.select("body").html("").append("svg:g").call(a),
+            tick = g.select("g:nth-child(3)"),
+            text = tick.select("text"),
+            line = tick.select("line"),
+            path = g.select("path.domain");
+        assert.equal(tick.attr("transform"), "translate(0.2,0)");
+        assert.equal(text.attr("y"), -9)
+        assert.equal(text.attr("dy"), "0em");
+        assert.equal(text.attr("text-anchor"), "middle");
+        assert.equal(text.text(), "0.2");
+        assert.equal(line.attr("y2"), -6);
+        assert.equal(path.attr("d"), "M0,-6V0H1V-6");
+      },
+      "supports right orientation": function(axis) {
+        var a = axis().orient("right"),
+            g = d3.select("body").html("").append("svg:g").call(a),
+            tick = g.select("g:nth-child(3)"),
+            text = tick.select("text"),
+            line = tick.select("line"),
+            path = g.select("path.domain");
+        assert.equal(tick.attr("transform"), "translate(0,0.2)");
+        assert.equal(text.attr("x"), 9)
+        assert.equal(text.attr("dy"), ".32em");
+        assert.equal(text.attr("text-anchor"), "start");
+        assert.equal(text.text(), "0.2");
+        assert.equal(line.attr("x2"), 6);
+        assert.equal(path.attr("d"), "M6,0H0V1H6");
+      },
+      "supports bottom orientation": function(axis) {
+        var a = axis().orient("bottom"),
+            g = d3.select("body").html("").append("svg:g").call(a),
+            tick = g.select("g:nth-child(3)"),
+            text = tick.select("text"),
+            line = tick.select("line"),
+            path = g.select("path.domain");
+        assert.equal(tick.attr("transform"), "translate(0.2,0)");
+        assert.equal(text.attr("y"), 9)
+        assert.equal(text.attr("dy"), ".71em");
+        assert.equal(text.attr("text-anchor"), "middle");
+        assert.equal(text.text(), "0.2");
+        assert.equal(line.attr("y2"), 6);
+        assert.equal(path.attr("d"), "M0,6V0H1V6");
+      },
+      "supports left orientation": function(axis) {
+        var a = axis().orient("left"),
+            g = d3.select("body").html("").append("svg:g").call(a),
+            tick = g.select("g:nth-child(3)"),
+            text = tick.select("text"),
+            line = tick.select("line"),
+            path = g.select("path.domain");
+        assert.equal(tick.attr("transform"), "translate(0,0.2)");
+        assert.equal(text.attr("x"), -9)
+        assert.equal(text.attr("dy"), ".32em");
+        assert.equal(text.attr("text-anchor"), "end");
+        assert.equal(text.text(), "0.2");
+        assert.equal(line.attr("x2"), -6);
+        assert.equal(path.attr("d"), "M-6,0H0V1H-6");
+      }
+    },
+
+    "tickSize": {
+      "defaults to six pixels": function(axis) {
+        var a = axis();
+        assert.equal(a.tickSize(), 6);
+      },
+      "can be defined as a number": function(axis) {
+        var a = axis().tickSize(3);
+        assert.equal(a.tickSize(), 3);
+      },
+      "coerces input value to a number": function(axis) {
+        var a = axis().tickSize("3");
+        assert.strictEqual(a.tickSize(), 3);
+      },
+      "affects the generated domain path": function(axis) {
+        var a = axis().tickSize(3),
+            g = d3.select("body").html("").append("svg:g").call(a),
+            path = g.select("path.domain");
+        assert.equal(path.attr("d"), "M0,3V0H1V3");
+      },
+      "affects the generated tick lines": function(axis) {
+        var a = axis().tickSize(3),
+            g = d3.select("body").html("").append("svg:g").call(a),
+            line = g.selectAll("g line");
+        line.each(function() {
+          assert.equal(d3.select(this).attr("y2"), 3);
+        });
+      },
+      "if negative, labels are placed on the opposite end": function(axis) {
+        var a = axis().tickSize(-80),
+            g = d3.select("body").html("").append("svg:g").call(a),
+            line = g.selectAll("g line"),
+            text = g.selectAll("g text");
+        line.each(function() {
+          assert.equal(d3.select(this).attr("y2"), -80);
+        });
+        text.each(function() {
+          assert.equal(d3.select(this).attr("y"), 3);
+        });
+      },
+      "with two arguments, specifies end tick size": function(axis) {
+        var a = axis().tickSize(6, 3),
+            g = d3.select("body").html("").append("svg:g").call(a),
+            path = g.selectAll("path");
+        assert.equal(path.attr("d"), "M0,3V0H1V3");
+      },
+      "with three arguments, specifies end and minor tick sizes": function(axis) {
+        var a = axis().tickSubdivide(3).tickSize(6, 3, 9),
+            g = d3.select("body").html("").append("svg:g").call(a),
+            path = g.selectAll("path"),
+            line = g.select(".minor");
+        assert.equal(path.attr("d"), "M0,9V0H1V9");
+        assert.equal(line.attr("y2"), "3");
+      }
+    },
+
+    "tickPadding": {
+      "defaults to three pixels": function(axis) {
+        var a = axis();
+        assert.equal(a.tickPadding(), 3);
+      },
+      "can be defined as a number": function(axis) {
+        var a = axis().tickPadding(6);
+        assert.equal(a.tickPadding(), 6);
+      },
+      "coerces input value to a number": function(axis) {
+        var a = axis().tickPadding("6");
+        assert.strictEqual(a.tickPadding(), 6);
+      },
+      "affects the generated tick labels": function(axis) {
+        var a = axis().tickSize(2).tickPadding(7),
+            g = d3.select("body").html("").append("svg:g").call(a),
+            text = g.selectAll("g text");
+        text.each(function() {
+          assert.equal(d3.select(this).attr("y"), 9);
+        });
+      }
+    },
+
+    "ticks": {
+      "defaults to 10": function(axis) {
+        var a = axis();
+        assert.deepEqual(a.ticks(), [10]);
+      },
+      "can be defined as any arguments": function(axis) {
+        var b = {}, a = axis().ticks(b, 42), t = a.ticks();
+        assert.equal(t[0], b);
+        assert.equal(t[1], 42);
+        assert.equal(t.length, 2);
+      },
+      "passes any arguments to the scale's ticks function": function(axis) {
+        var x = d3.scale.linear(), b = {}, a = axis().ticks(b, 42).scale(x), aa = [],
+            g = d3.select("body").html("").append("svg:g");
+        x.ticks = function() { aa.push(arguments); return [42]; };
+        g.call(a);
+        assert.equal(aa.length, 1);
+        assert.equal(aa[0].length, 2);
+        assert.equal(aa[0][0], b);
+        assert.equal(aa[0][1], 42);
+      },
+      "passes any arguments to the scale's tickFormat function": function(axis) {
+        var b = {},
+            x = d3.scale.linear(),
+            a = axis().scale(x).ticks(b, 42),
+            g = d3.select("body").html("").append("svg:g"),
+            aa = [];
+
+        x.tickFormat = function() {
+          aa.push(arguments);
+          return String;
+        };
+
+        g.call(a);
+        assert.equal(aa.length, 1);
+        assert.equal(aa[0].length, 2);
+        assert.equal(aa[0][0], b);
+        assert.equal(aa[0][1], 42);
+      },
+      "affects the generated ticks": function(axis) {
+        var a = axis().ticks(20),
+            g = d3.select("body").html("").append("svg:g").call(a),
+            t = g.selectAll("g");
+        assert.equal(t[0].length, 21);
+      }
+    },
+
+    "tickSubdivide": {
+      "defaults to zero": function(axis) {
+        var a = axis();
+        assert.equal(a.tickSubdivide(), 0);
+      },
+      "coerces input value to a number": function(axis) {
+        var a = axis().tickSubdivide(true);
+        assert.strictEqual(a.tickSubdivide(), 1);
+      },
+      "does not generate minor ticks when zero": function(axis) {
+        var g = d3.select("body").html("").append("svg:g").call(axis());
+        assert.isTrue(g.selectAll(".minor").empty());
+      },
+      "affects the generated minor ticks": function(axis) {
+        var a = axis().tickSubdivide(3),
+            g = d3.select("body").html("").append("svg:g").call(a),
+            t = g.selectAll("line.tick.minor");
+        assert.equal(t[0].length, 30);
+        assert.equal(t[0][1].getAttribute("transform"), "translate(0.05,0)");
+      }
+    },
+
+    "tickFormat": {
+      "defaults to null": function(axis) {
+        var a = axis();
+        assert.isTrue(a.tickFormat() == null);
+      },
+      "when null, uses the scale's tick format": function(axis) {
+        var x = d3.scale.linear(), a = axis().scale(x),
+            g = d3.select("body").html("").append("svg:g");
+
+        x.tickFormat = function() {
+          return function(d) {
+            return "foo-" + d;
+          };
+        };
+
+        g.call(a);
+        var t = g.selectAll("g text");
+        assert.equal(t.text(), "foo-0");
+      },
+      "affects the generated tick labels": function(axis) {
+        var a = axis().tickFormat(d3.format("+.2%")),
+            g = d3.select("body").html("").append("svg:g").call(a),
+            t = g.selectAll("g text");
+        assert.equal(t.text(), "+0.00%");
+      },
+      "can be set to a constant": function(axis) {
+        var a = axis().tickFormat("I'm a tick!"),
+            g = d3.select("body").html("").append("svg:g").call(a),
+            t = g.selectAll("g text");
+        assert.equal(t.text(), "I'm a tick!");
+      },
+      "can be set to a falsey constant": function(axis) {
+        var a = axis().tickFormat(""),
+            g = d3.select("body").html("").append("svg:g").call(a),
+            t = g.selectAll("g text");
+        assert.equal(t.text(), "");
+      }
+    },
+
+    "enter": {
+      "generates a new domain path": function(axis) {
+        var a = axis(),
+            g = d3.select("body").html("").append("svg:g").call(a),
+            path = g.selectAll("path.domain");
+        assert.equal(path[0].length, 1);
+        assert.equal(path.attr("d"), "M0,6V0H1V6");
+        assert.isNull(path.node().nextSibling);
+      },
+      "generates new tick marks with labels": function(axis) {
+        var a = axis(),
+            g = d3.select("body").html("").append("svg:g").call(a),
+            x = d3.scale.linear(),
+            tick = g.selectAll("g"),
+            ticks = x.ticks(10),
+            tickFormat = x.tickFormat(10);
+        assert.equal(tick[0].length, ticks.length);
+        tick.each(function(d, i) {
+          var t = d3.select(this);
+          assert.isFalse(t.select("line").empty());
+          assert.isFalse(t.select("text").empty());
+          assert.equal(t.select("text").text(), tickFormat(ticks[i]));
+        });
+      }
+    },
+
+    "update": {
+      "updates the domain path": function(axis) {
+        var a = axis(),
+            g = d3.select("body").html("").append("svg:g").call(a);
+        a.scale().domain([0, 2]).range([1, 2]);
+        a.tickSize(3);
+        g.call(a);
+        var path = g.selectAll("path.domain");
+        assert.equal(path[0].length, 1);
+        assert.equal(path.attr("d"), "M1,3V0H2V3");
+        assert.domEqual(path.node().nextSibling, null);
+      },
+      "enters, exits and updates tick marks": function(axis) {
+        var a = axis(),
+            g = d3.select("body").html("").append("svg:g").call(a),
+            x = d3.scale.linear().domain([1, 1.5]);
+        a.scale().domain(x.domain());
+        a.tickSize(3).tickPadding(9);
+        g.call(a);
+        var tick = g.selectAll("g"),
+            ticks = x.ticks(10),
+            tickFormat = x.tickFormat(10);
+        assert.equal(tick[0].length, ticks.length);
+        tick.each(function(d, i) {
+          var t = d3.select(this);
+          assert.isFalse(t.select("line").empty());
+          assert.isFalse(t.select("text").empty());
+          assert.equal(t.select("text").text(), tickFormat(ticks[i]));
+        });
+      }
+    }
+  }
+});
+
+suite.export(module);