require("../env");

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

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

var vows = require("vows"),

    assert = require("assert");

var suite = vows.describe("d3.time.week");

suite.addBatch({

  "week": {

    topic: function() {

      return d3.time.week;

    },

    "returns weeks": function(floor) {

      assert.deepEqual(floor(local(2010, 11, 31, 23, 59, 59)), local(2010, 11, 26));

      assert.deepEqual(floor(local(2011, 0, 1, 0, 0, 0)), local(2010, 11, 26));

      assert.deepEqual(floor(local(2011, 0, 1, 0, 0, 1)), local(2010, 11, 26));

      assert.deepEqual(floor(local(2011, 0, 1, 23, 59, 59)), local(2010, 11, 26));

      assert.deepEqual(floor(local(2011, 0, 2, 0, 0, 0)), local(2011, 0, 2));

      assert.deepEqual(floor(local(2011, 0, 2, 0, 0, 1)), local(2011, 0, 2));

    },

    "observes the start of daylight savings time": function(floor) {

      assert.deepEqual(floor(local(2011, 2, 13, 1)), local(2011, 2, 13));

    },

    "observes the end of the daylight savings time": function(floor) {

      assert.deepEqual(floor(local(2011, 10, 6, 1)), local(2011, 10, 6));

    },

    "UTC": {

      topic: function(floor) {

        return floor.utc;

      },

      "returns weeks": function(floor) {

        assert.deepEqual(floor(utc(2010, 11, 31, 23, 59, 59)), utc(2010, 11, 26));

        assert.deepEqual(floor(utc(2011, 0, 1, 0, 0, 0)), utc(2010, 11, 26));

        assert.deepEqual(floor(utc(2011, 0, 1, 0, 0, 1)), utc(2010, 11, 26));

        assert.deepEqual(floor(utc(2011, 0, 1, 23, 59, 59)), utc(2010, 11, 26));

        assert.deepEqual(floor(utc(2011, 0, 2, 0, 0, 0)), utc(2011, 0, 2));

        assert.deepEqual(floor(utc(2011, 0, 2, 0, 0, 1)), utc(2011, 0, 2));

      },

      "does not observe the start of daylight savings time": function(floor) {

        assert.deepEqual(floor(utc(2011, 2, 13, 1)), utc(2011, 2, 13));

      },

      "does not observe the end of the daylight savings time": function(floor) {

        assert.deepEqual(floor(utc(2011, 10, 6, 1)), utc(2011, 10, 6));

      }

    }

  }

});

function local(year, month, day, hours, minutes, seconds) {

  return new Date(year, month, day, hours || 0, minutes || 0, seconds || 0);

}

function utc(year, month, day, hours, minutes, seconds) {

  return new Date(Date.UTC(year, month, day, hours || 0, minutes || 0, seconds || 0));

}

suite.export(module);