var vows = require(“vows”),
_ = require("../../"), load = require("../load"), assert = require("../assert");
var suite = vows.describe(“d3.svg.axis”);
suite.addBatch({
"axis": { topic: load("svg/axis").document(), "scale": { "defaults to a linear scale": function(d3) { var a = d3.svg.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(d3) { var x = _.scale.linear(), a = d3.svg.axis().scale(x); assert.equal(a.scale(), x); }, "can be a polylinear scale": function(d3) { var x = _.scale.linear().domain([0, 1, 10]).range([2, 20, 200]), a = d3.svg.axis().scale(x), g = d3.select("body").html("").append("g").call(a), path = g.selectAll("path"); assert.inDelta(g.selectAll(".tick").data(), [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10], 1e-4); assert.inDelta(g.selectAll(".tick").data().map(x), [2, 20, 40, 60, 80, 100, 120, 140, 160, 180, 200], 1e-4); assert.equal(path.attr("d"), "M2,6V0H200V6"); }, "can be an ordinal scale": function(d3) { var x = _.scale.ordinal().domain(["A", "B", "C"]).rangeBands([10, 90]), a = d3.svg.axis().scale(x), g = d3.select("body").html("").append("g").call(a), path = g.selectAll("path"); assert.deepEqual(g.selectAll(".tick").data(), ["A", "B", "C"]); assert.inDelta(g.selectAll(".tick").data().map(x), [10, 36.6667, 63.3333], 1e-4); assert.equal(path.attr("d"), "M10,6V0H90V6"); }, "can be an ordinal scale with explicit range": function(d3) { var x = _.scale.ordinal().domain(["A", "B", "C"]).range([10, 50, 90]), a = d3.svg.axis().scale(x), g = d3.select("body").html("").append("g").call(a), path = g.selectAll("path"); assert.deepEqual(g.selectAll(".tick").data(), ["A", "B", "C"]); assert.deepEqual(g.selectAll(".tick").data().map(x), [10, 50, 90]); assert.equal(path.attr("d"), "M10,6V0H90V6"); }, "can be a quantize scale": function(d3) { var x = _.scale.quantize().domain([0, 10]).range([10, 50, 90]), a = d3.svg.axis().scale(x), g = d3.select("body").html("").append("g").call(a); assert.inDelta(g.selectAll(".tick").data(), [0, 10], 1e-4); assert.deepEqual(g.selectAll(".tick").data().map(x), [10, 90]); assert.equal(g.select("path").attr("d"), "M10,6V0H90V6"); }, "can be a quantile scale": function(d3) { var x = _.scale.quantile().domain([6, 3, 5, 2, 7, 8, 4, 0, 1, 9]).range([10, 50, 90]), a = d3.svg.axis().scale(x), g = d3.select("body").html("").append("g").call(a); assert.inDelta(g.selectAll(".tick").data(), [0, 1, 2, 3, 4, 5, 6, 7, 8, 9], 1e-4); assert.inDelta(g.selectAll(".tick").data().map(x), [10, 10, 10, 50, 50, 50, 90, 90, 90, 90], 1e-4); assert.equal(g.select("path").attr("d"), "M10,6V0H90V6"); }, "can be a threshold scale": function(d3) { var x = _.scale.threshold().domain([4, 5, 6]).range([0, 30, 60, 90]), a = d3.svg.axis().scale(x), g = d3.select("body").html("").append("g").call(a); assert.inDelta(g.selectAll(".tick").data(), [4, 5, 6], 1e-4); assert.inDelta(g.selectAll(".tick").data().map(x), [30, 60, 90], 1e-4); assert.equal(g.select("path").attr("d"), "M0,6V0H90V6"); } }, "orient": { "defaults to bottom": function(d3) { var a = d3.svg.axis(); assert.equal(a.orient(), "bottom"); }, "defaults to bottom when an invalid orientation is specified": function(d3) { var a = d3.svg.axis().orient("invalid"); assert.equal(a.orient(), "bottom"); }, "coerces to a string": function(d3) { var a = d3.svg.axis().orient({toString: function() { return "left"; }}); assert.equal(a.orient(), "left"); }, "supports top orientation": function(d3) { var a = d3.svg.axis().orient("top"), g = d3.select("body").html("").append("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.style("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(d3) { var a = d3.svg.axis().orient("right"), g = d3.select("body").html("").append("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.style("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(d3) { var a = d3.svg.axis().orient("bottom"), g = d3.select("body").html("").append("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.style("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(d3) { var a = d3.svg.axis().orient("left"), g = d3.select("body").html("").append("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.style("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(d3) { var a = d3.svg.axis(); assert.equal(a.tickSize(), 6); }, "can be defined as a number": function(d3) { var a = d3.svg.axis().tickSize(3); assert.equal(a.tickSize(), 3); }, "coerces input value to a number": function(d3) { var a = d3.svg.axis().tickSize("3"); assert.strictEqual(a.tickSize(), 3); }, "affects the generated domain path": function(d3) { var a = d3.svg.axis().tickSize(3), g = d3.select("body").html("").append("g").call(a), path = g.select("path.domain"); assert.equal(path.attr("d"), "M0,3V0H1V3"); }, "affects the generated tick lines": function(d3) { var a = d3.svg.axis().tickSize(3), g = d3.select("body").html("").append("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(d3) { var a = d3.svg.axis().tickSize(-80), g = d3.select("body").html("").append("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(d3) { var a = d3.svg.axis().tickSize(6, 3), g = d3.select("body").html("").append("g").call(a), path = g.selectAll("path"); assert.equal(path.attr("d"), "M0,3V0H1V3"); }, "with three arguments, specifies end and minor tick sizes": function(d3) { var a = d3.svg.axis().tickSubdivide(3).tickSize(6, 3, 9), g = d3.select("body").html("").append("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(d3) { var a = d3.svg.axis(); assert.equal(a.tickPadding(), 3); }, "can be defined as a number": function(d3) { var a = d3.svg.axis().tickPadding(6); assert.equal(a.tickPadding(), 6); }, "coerces input value to a number": function(d3) { var a = d3.svg.axis().tickPadding("6"); assert.strictEqual(a.tickPadding(), 6); }, "affects the generated tick labels": function(d3) { var a = d3.svg.axis().tickSize(2).tickPadding(7), g = d3.select("body").html("").append("g").call(a), text = g.selectAll("g text"); text.each(function() { assert.equal(d3.select(this).attr("y"), 9); }); } }, "ticks": { "defaults to [10]": function(d3) { var a = d3.svg.axis(); assert.deepEqual(a.ticks(), [10]); }, "can be defined as any arguments": function(d3) { var b = {}, a = d3.svg.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(d3) { var x = _.scale.linear(), b = {}, a = d3.svg.axis().ticks(b, "%").scale(x), aa = [], g = d3.select("body").html("").append("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], "%"); }, "passes any arguments to the scale's tickFormat function": function(d3) { var b = {}, x = _.scale.linear(), a = d3.svg.axis().scale(x).ticks(b, "%"), g = d3.select("body").html("").append("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], "%"); }, "affects the generated ticks": function(d3) { var a = d3.svg.axis().ticks(20, "%"), g = d3.select("body").html("").append("g").call(a), t = g.selectAll("g"); assert.equal(t[0].length, 21); assert.equal(t[0][0].textContent, "0%"); }, "only substitutes precision if not specified": function(d3) { var a = d3.svg.axis().ticks(20, ".5%"), g = d3.select("body").html("").append("g").call(a), t = g.selectAll("g"); assert.equal(t[0].length, 21); assert.equal(t[0][0].textContent, "0.00000%"); } }, "tickValues": { "defaults to null": function(d3) { var a = d3.svg.axis().tickValues(); assert.isNull(a); }, "can be given as array of positions": function(d3) { var l = [1, 2.5, 3], a = d3.svg.axis().tickValues(l), t = a.tickValues(); assert.equal(t, l); assert.equal(t.length, 3); }, "does not change the tick arguments": function(d3) { var b = {}, a = d3.svg.axis().ticks(b, 42).tickValues([10]), t = a.ticks(); assert.equal(t[0], b); assert.equal(t[1], 42); assert.equal(t.length, 2); }, "does not change the arguments passed to the scale's tickFormat function": function(d3) { var x = _.scale.linear(), a = d3.svg.axis().scale(x).ticks(10).tickValues([1, 2, 3]), g = d3.select("body").html("").append("g"), aa = []; x.tickFormat = function() { aa.push(arguments); return String; }; g.call(a); assert.equal(aa.length, 1); assert.equal(aa[0].length, 1); assert.equal(aa[0][0], 10); }, "affects the generated ticks": function(d3) { var a = d3.svg.axis().ticks(20), g = d3.select("body").html("").append("g").call(a), t = g.selectAll("g"); assert.equal(t[0].length, 21); } }, "tickSubdivide": { "defaults to zero": function(d3) { var a = d3.svg.axis(); assert.equal(a.tickSubdivide(), 0); }, "coerces input value to a number": function(d3) { var a = d3.svg.axis().tickSubdivide(true); assert.strictEqual(a.tickSubdivide(), 1); }, "does not generate minor ticks when zero": function(d3) { var g = d3.select("body").html("").append("g").call(d3.svg.axis()); assert.isTrue(g.selectAll(".minor").empty()); }, "affects the generated minor ticks": function(d3) { var a = d3.svg.axis().tickSubdivide(3), g = d3.select("body").html("").append("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(d3) { var a = d3.svg.axis(); assert.isTrue(a.tickFormat() == null); }, "when null, uses the scale's tick format": function(d3) { var x = _.scale.linear(), a = d3.svg.axis().scale(x), g = d3.select("body").html("").append("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(d3) { var a = d3.svg.axis().tickFormat(d3.format("+.2%")), g = d3.select("body").html("").append("g").call(a), t = g.selectAll("g text"); assert.equal(t.text(), "+0.00%"); }, "can be set to a constant": function(d3) { var a = d3.svg.axis().tickFormat("I'm a tick!"), g = d3.select("body").html("").append("g").call(a), t = g.selectAll("g text"); assert.equal(t.text(), "I'm a tick!"); }, "can be set to a falsey constant": function(d3) { var a = d3.svg.axis().tickFormat(""), g = d3.select("body").html("").append("g").call(a), t = g.selectAll("g text"); assert.equal(t.text(), ""); } }, "enter": { "generates a new domain path": function(d3) { var a = d3.svg.axis(), g = d3.select("body").html("").append("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(d3) { var a = d3.svg.axis(), g = d3.select("body").html("").append("g").call(a), x = _.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(d3) { var a = d3.svg.axis(), g = d3.select("body").html("").append("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(d3) { var a = d3.svg.axis(), g = d3.select("body").html("").append("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);