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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.strictEqual(a.tickSize(), 6);
},
"can be defined as a number": function(d3) {
var a = d3.svg.axis().tickSize(3);
assert.strictEqual(a.tickSize(), 3);
},
"coerces input values to numbers": function(d3) {
var a = d3.svg.axis().tickSize("3");
assert.strictEqual(a.tickSize(), 3);
assert.strictEqual(a.innerTickSize(), 3);
assert.strictEqual(a.outerTickSize(), 3);
a.tickSize("4", "5");
assert.strictEqual(a.tickSize(), 4);
assert.strictEqual(a.innerTickSize(), 4);
assert.strictEqual(a.outerTickSize(), 5);
},
"with no arguments, returns the inner tick size": function(d3) {
var a = d3.svg.axis().innerTickSize(10);
assert.strictEqual(a.tickSize(), 10);
},
"with one argument, specifies both the inner and outer tick size": function(d3) {
var a = d3.svg.axis().tickSize(10);
assert.strictEqual(a.innerTickSize(), 10);
assert.strictEqual(a.outerTickSize(), 10);
},
"with two arguments, specifies inner and outer tick sizes": function(d3) {
var a = d3.svg.axis().tickSize(2, 4);
assert.strictEqual(a.innerTickSize(), 2);
assert.strictEqual(a.outerTickSize(), 4);
},
"with three arguments (for backwards compatibility), specifies the inner and outer tick sizes": function(d3) {
var a = d3.svg.axis().tickSize(1, 2, 3);
assert.strictEqual(a.innerTickSize(), 1);
assert.strictEqual(a.outerTickSize(), 3);
}
},
"innerTickSize": {
"defaults to six pixels": function(d3) {
var a = d3.svg.axis();
assert.strictEqual(a.innerTickSize(), 6);
},
"can be defined as a number": function(d3) {
var a = d3.svg.axis().innerTickSize(3);
assert.strictEqual(a.innerTickSize(), 3);
},
"when changed, does not affect the outer tick size": function(d3) {
var a = d3.svg.axis().innerTickSize(3);
assert.strictEqual(a.outerTickSize(), 6);
},
"coerces the specified value to a number": function(d3) {
var a = d3.svg.axis().innerTickSize("3");
assert.strictEqual(a.innerTickSize(), 3);
},
"with no arguments, returns the outer tick size": function(d3) {
var a = d3.svg.axis().outerTickSize(10);
assert.strictEqual(a.outerTickSize(), 10);
},
"affects the generated tick lines": function(d3) {
var a = d3.svg.axis().innerTickSize(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().innerTickSize(-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);
});
}
},
"outerTickSize": {
"defaults to six pixels": function(d3) {
var a = d3.svg.axis();
assert.strictEqual(a.outerTickSize(), 6);
},
"can be defined as a number": function(d3) {
var a = d3.svg.axis().outerTickSize(3);
assert.strictEqual(a.outerTickSize(), 3);
},
"when changed, does not affect the inner tick size": function(d3) {
var a = d3.svg.axis().outerTickSize(3);
assert.strictEqual(a.innerTickSize(), 6);
},
"coerces the specified value to a number": function(d3) {
var a = d3.svg.axis().outerTickSize("3");
assert.strictEqual(a.outerTickSize(), 3);
},
"with no arguments, returns the inner tick size": function(d3) {
var a = d3.svg.axis().innerTickSize(10);
assert.strictEqual(a.innerTickSize(), 10);
},
"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");
},
"with three arguments, specifies end tick size and ignores minor tick size": function(d3) {
var a = d3.svg.axis().tickSize(6, 3, 9),
g = d3.select("body").html("").append("g").call(a),
path = g.selectAll("path");
assert.equal(path.attr("d"), "M0,9V0H1V9");
}
},
"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": {
"is deprecated and does nothing": function(d3) {
var a = d3.svg.axis();
assert.equal(a.tickSubdivide(), 0);
assert.strictEqual(a.tickSubdivide(1), a);
assert.equal(a.tickSubdivide(), 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);