require("../env");

require("../../d3");

var vows = require("vows"),

    assert = require("assert");

var suite = vows.describe("selection.property");

suite.addBatch({

  "select(body)": {

    topic: function() {

      return d3.select("body").html("");

    },

    "sets a property as a string": function(body) {

      body.property("bgcolor", "red");

      assert.equal(document.body.bgcolor, "red");

    },

    "sets a property as a number": function(body) {

      body.property("opacity", 1);

      assert.equal(document.body.opacity, "1");

    },

    "sets a property as a function": function(body) {

      body.property("bgcolor", function() { return "orange"; });

      assert.equal(document.body.bgcolor, "orange");

    },

    "gets a property value": function(body) {

      document.body.bgcolor = "yellow";

      assert.equal(body.property("bgcolor"), "yellow");

    },

    "removes a property as null": function(body) {

      body.property("bgcolor", "yellow").property("bgcolor", null);

      assert.isFalse("bgcolor" in document.body);

    },

    "removes a property as a function": function(body) {

      body.property("bgcolor", "yellow").property("bgcolor", function() { return null });

      assert.isFalse("bgcolor" in document.body);

    },

    "returns the current selection": function(body) {

      assert.isTrue(body.property("bgcolor", "yellow") === body);

    }

  }

});

suite.addBatch({

  "selectAll(div)": {

    topic: function() {

      return d3.select("body").html("").selectAll("div").data(d3.range(2)).enter().append("div");

    },

    "sets a property as a string": function(div) {

      div.property("bgcolor", "red");

      assert.equal(div[0][0].bgcolor, "red");

      assert.equal(div[0][1].bgcolor, "red");

    },

    "sets a property as a number": function(div) {

      div.property("opacity", 0.4);

      assert.equal(div[0][0].opacity, "0.4");

      assert.equal(div[0][1].opacity, "0.4");

    },

    "sets a property as a function": function(div) {

      div.property("bgcolor", d3.interpolateRgb("brown", "steelblue"));

      assert.equal(div[0][0].bgcolor, "#a52a2a");

      assert.equal(div[0][1].bgcolor, "#4682b4");

    },

    "gets a property value": function(div) {

      div[0][0].bgcolor = "purple";

      assert.equal(div.property("bgcolor"), "purple");

    },

    "removes a property as null": function(div) {

      div.property("bgcolor", "yellow").property("bgcolor", null);

      assert.isFalse("bgcolor" in div[0][0]);

      assert.isFalse("bgcolor" in div[0][1]);

    },

    "removes a property as a function": function(div) {

      div.property("bgcolor", "yellow").property("bgcolor", function() { return null });

      assert.isFalse("bgcolor" in div[0][0]);

      assert.isFalse("bgcolor" in div[0][1]);

    },

    "ignores null nodes": function(div) {

      var some = d3.selectAll("div");

      some[0][1] = null;

      some.property("bgcolor", null).property("bgcolor", "red");

      assert.equal(div[0][0].bgcolor, "red");

      assert.isFalse("bgcolor" in div[0][1]);

    },

    "returns the current selection": function(div) {

      assert.isTrue(div.property("bgcolor", "yellow") === div);

    }

  }

});

suite.export(module);