require("../env");

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

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

var vows = require("vows"),

    assert = require("assert");

var suite = vows.describe("d3.geo.equirectangular");

suite.addBatch({

  "equirectangular": {

    topic: function() {

      return d3.geo.equirectangular();

    },

    "scale": {

      "defaults to 500": function(projection) {

        assert.equal(projection.scale(), 500);

      },

      "is coerced to a number": function(projection) {

        assert.strictEqual(projection.scale("400"), projection);

        assert.strictEqual(projection.scale(), 400);

        projection.scale(500);

      }

    },

    "translate": {

      "defaults to [480, 250]": function(projection) {

        assert.deepEqual(projection.translate(), [480, 250]);

      },

      "is coerced to two numbers": function(projection) {

        assert.strictEqual(projection.translate(["23", "141"]), projection);

        assert.strictEqual(projection.translate()[0], 23);

        assert.strictEqual(projection.translate()[1], 141);

        projection.translate([480, 250]);

      }

    },

    "of San Francisco, CA": {

      "is at location [-122.446, 37.767]": function(projection) {

        assert.inDelta(projection.invert([310, 198]), [-122.446, 37.767], .5);

      },

      "is at point [310, 198]": function(projection) {

        assert.inDelta(projection([-122.446, 37.767]), [310, 198], .5);

      }

    }

  }

});

suite.export(module);