var vows = require(“vows”),

load = require("../load"),
assert = require("../assert");

var suite = vows.describe(“selection.text”);

suite.addBatch({

"on select(body)": {
  topic: load("selection/text").document(),
  "on an initially-empty page": {
    topic: function(d3) {
      return d3.select("body");
    },
    "sets the text content as a string": function(body) {
      body.text("Hello, world!");
      assert.equal(body.node().textContent, "Hello, world!");
    },
    "sets the text content as a number": function(body) {
      body.text(42);
      assert.equal(body.node().textContent, "42");
    },
    "sets the text content as a function": function(body) {
      body.data(["Subject"]).text(function(d, i) { return "Hello, " + d + " " + i + "!"; });
      assert.equal(body.node().textContent, "Hello, Subject 0!");
    },
    "escapes html content to text": function(body) {
      body.text("<h1>Hello, world!</h1>");
      assert.equal(body.node().textContent, "<h1>Hello, world!</h1>");
      assert.equal(body.node().firstChild.nodeType, 3);
    },
    "clears the text content as null": function(body) {
      body.text(null);
      assert.equal(body.node().textContent, "");
    },
    "clears the text content as undefined": function(body) {
      body.text(undefined);
      assert.equal(body.node().textContent, "");
    },
    "clears the text content as a function returning null": function(body) {
      body.text(function() { return null; });
      assert.equal(body.node().textContent, "");
    },
    "clears the text content as a function returning undefined": function(body) {
      body.text(function() { return undefined; });
      assert.equal(body.node().textContent, "");
    },
    "returns the current selection": function(body) {
      assert.isTrue(body.text("hello") === body);
    },
    "ignores null nodes": function(body) {
      var node = body.node();
      node.textContent = "foo";
      body[0][0] = null;
      body.text("bar");
      assert.equal(node.textContent, "foo");
    }
  }
}

});

suite.addBatch({

"on selectAll(div)": {
  topic: load("selection/text").document(),
  "on a page with a few divs": {
    topic: function(d3) {
      return d3.select("body").selectAll("div").data([0, 1]).enter().append("div");
    },
    "sets the text content as a string": function(div) {
      div.text("Hello, world!");
      assert.equal(div[0][0].textContent, "Hello, world!");
      assert.equal(div[0][1].textContent, "Hello, world!");
    },
    "sets the text content as a number": function(div) {
      div.text(42);
      assert.equal(div[0][0].textContent, "42");
      assert.equal(div[0][1].textContent, "42");
    },
    "sets the text content as a function": function(div) {
      div.data(["foo", "bar"]).text(function(d, i) { return "Hello, " + d + " " + i + "!"; });
      assert.equal(div[0][0].textContent, "Hello, foo 0!");
      assert.equal(div[0][1].textContent, "Hello, bar 1!");
    },
    "escapes html content to text": function(div) {
      div.text("<h1>Hello, world!</h1>");
      assert.equal(div[0][0].textContent, "<h1>Hello, world!</h1>");
      assert.equal(div[0][1].textContent, "<h1>Hello, world!</h1>");
      assert.equal(div[0][0].firstChild.nodeType, 3);
      assert.equal(div[0][1].firstChild.nodeType, 3);
    },
    "clears the text content as null": function(div) {
      div.text(null);
      assert.equal(div[0][0].textContent, "");
      assert.equal(div[0][1].textContent, "");
    },
    "clears the text content as a function": function(div) {
      div.text(function() { return null; });
      assert.equal(div[0][0].textContent, "");
      assert.equal(div[0][1].textContent, "");
    },
    "returns the current selection": function(div) {
      assert.isTrue(div.text("hello") === div);
    },
    "ignores null nodes": function(div) {
      var node = div[0][0];
      node.textContent = "foo";
      div[0][0] = null;
      div.text("bar");
      assert.equal(node.textContent, "foo");
      assert.equal(div[0][1].textContent, "bar");
    }
  }
}

});

suite.export(module);