<?php

/**
 * @file
 * Tests for earth.inc functionality.
 */

require_once drupal_get_path('module', 'location') .'/earth.inc';
require_once drupal_get_path('module', 'location') .'/tests/location_testcase.php';

class LocationEarthTest extends LocationTestCase {
  function getInfo() {
    return array(
      'name' => t('Location earth.inc tests'),
      'description' => t('Test earth.inc calculations.'),
      'group' => t('Location'),
    );
  }

  function setUp() {
    parent::setUp('location');
  }

  function testXYZ() {
    $expected = array(5076436.1926031, 3086400.2318368, 2312685.5571307);
    $result = earth_xyz(31.299, 21.4);
    $this->assertArrayEpsilon($result, $expected, 0.01);

    // Taj Mahal
    $expected = array(1179389.7524227, 605469.92806515, 6217918.5984722);
    $result = earth_xyz(27.174858, 78.042383);
    $this->assertArrayEpsilon($result, $expected, 0.01, 'Taj Mahal');

    // Four Corners
    $expected = array(-1667195.89356, -1256280.4293852, -6006637.16009);
    $result = earth_xyz(36.999084, -109.045223);
    $this->assertArrayEpsilon($result, $expected, 0.01, 'Four Corners');

    // North Magnetic Pole
    $expected = array(-335727.75631839, -2620765.1318567, -5785664.2896111);
    $result = earth_xyz(82.7, -114.4);
    $this->assertArrayEpsilon($result, $expected, 0.01, 'North Magnetic Pole');

    // Wall Drug
    $expected = array(-976074.77491191, -942362.77881868, -6211268.2459008);
    $result = earth_xyz(43.993266, -102.241794);
    $this->assertArrayEpsilon($result, $expected, 0.01, 'Wall Drug');
  }
}
