var vows = require(“vows”),

load = require("../load"),
assert = require("../assert"),
time = require("./time"),
local = time.local,
utc = time.utc;

var suite = vows.describe(“d3.time.days”);

suite.addBatch({

"days": {
  topic: load("time/day").expression("d3.time.days"),
  "returns midnights": function(range) {
    assert.deepEqual(range(local(2010, 11, 31, 12), local(2011, 0, 3, 12)), [
      local(2011, 0, 1),
      local(2011, 0, 2),
      local(2011, 0, 3)
    ]);
  },
  "has an inclusive lower bound": function(range) {
    assert.deepEqual(range(local(2010, 11, 31), local(2011, 0, 3))[0], local(2010, 11, 31));
  },
  "has an exclusive upper bound": function(range) {
    assert.deepEqual(range(local(2010, 11, 31), local(2011, 0, 3))[2], local(2011, 0, 2));
  },
  "can skip days": function(range) {
    assert.deepEqual(range(local(2010, 11, 29), local(2011, 0, 14), 5), [
      local(2010, 11, 31),
      local(2011, 0, 1),
      local(2011, 0, 6),
      local(2011, 0, 11)
    ]);
  },
  "observes start of daylight savings time": function(range) {
    assert.deepEqual(range(local(2011, 2, 12), local(2011, 2, 16)), [
      local(2011, 2, 12),
      local(2011, 2, 13),
      local(2011, 2, 14),
      local(2011, 2, 15)
    ]);
  },
  "observes end of daylight savings time": function(range) {
    assert.deepEqual(range(local(2011, 10, 5), local(2011, 10, 9)), [
      local(2011, 10, 5),
      local(2011, 10, 6),
      local(2011, 10, 7),
      local(2011, 10, 8)
    ]);
  },
  "UTC": {
    topic: function(range) {
      return range.utc;
    },
    "returns midnights": function(range) {
      assert.deepEqual(range(utc(2010, 11, 31, 12), utc(2011, 0, 3, 12)), [
        utc(2011, 0, 1),
        utc(2011, 0, 2),
        utc(2011, 0, 3)
      ]);
    },
    "has an inclusive lower bound": function(range) {
      assert.deepEqual(range(utc(2010, 11, 31), utc(2011, 0, 3))[0], utc(2010, 11, 31));
    },
    "has an exclusive upper bound": function(range) {
      assert.deepEqual(range(utc(2010, 11, 31), utc(2011, 0, 3))[2], utc(2011, 0, 2));
    },
    "can skip days": function(range) {
      assert.deepEqual(range(utc(2010, 11, 29), utc(2011, 0, 14), 5), [
        utc(2010, 11, 31),
        utc(2011, 0, 1),
        utc(2011, 0, 6),
        utc(2011, 0, 11)
      ]);
    },
    "does not observe the start of daylight savings time": function(range) {
      assert.deepEqual(range(utc(2011, 2, 12), utc(2011, 2, 16)), [
        utc(2011, 2, 12),
        utc(2011, 2, 13),
        utc(2011, 2, 14),
        utc(2011, 2, 15)
      ]);
    },
    "does not observe the end of daylight savings time": function(range) {
      assert.deepEqual(range(utc(2011, 10, 5), utc(2011, 10, 9)), [
        utc(2011, 10, 5),
        utc(2011, 10, 6),
        utc(2011, 10, 7),
        utc(2011, 10, 8)
      ]);
    }
  }
}

});

suite.export(module);