/*jshint globalstrict:false, strict:false */
/*global assertEqual, assertTrue, assertFalse, assertNotEqual, assertEqual */

////////////////////////////////////////////////////////////////////////////////
/// @brief test the geo index
///
/// @file
///
/// DISCLAIMER
///
/// Copyright 2010-2012 triagens GmbH, Cologne, Germany
///
/// Licensed under the Apache License, Version 2.0 (the "License");
/// you may not use this file except in compliance with the License.
/// You may obtain a copy of the License at
///
///     http://www.apache.org/licenses/LICENSE-2.0
///
/// Unless required by applicable law or agreed to in writing, software
/// distributed under the License is distributed on an "AS IS" BASIS,
/// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
/// See the License for the specific language governing permissions and
/// limitations under the License.
///
/// Copyright holder is triAGENS GmbH, Cologne, Germany
///
/// @author Dr. Frank Celler, Lucas Dohmen
/// @author Copyright 2012, triAGENS GmbH, Cologne, Germany
////////////////////////////////////////////////////////////////////////////////

var jsunity = require("jsunity");
var internal = require("internal");
var console = require("console");


////////////////////////////////////////////////////////////////////////////////
/// @brief test suite: Creation
////////////////////////////////////////////////////////////////////////////////

function GeoIndexCreationSuite() {
  'use strict';
  var cn = "UnitTestsCollectionGeo";
  var collection = null;

  return {

////////////////////////////////////////////////////////////////////////////////
/// @brief set up
////////////////////////////////////////////////////////////////////////////////

    setUp : function () {
      internal.db._drop(cn);
      collection = internal.db._create(cn, { waitForSync : false });
    },

////////////////////////////////////////////////////////////////////////////////
/// @brief tear down
////////////////////////////////////////////////////////////////////////////////

    tearDown : function () {
      collection.unload();
      collection.drop();
      internal.wait(0.0);
    },

////////////////////////////////////////////////////////////////////////////////
/// @brief test: updates
////////////////////////////////////////////////////////////////////////////////

    testUpdates : function () {
      collection.truncate();

      collection.ensureGeoIndex("coordinates", true);

      [
        { _key: "a", coordinates : [ 138.46782, 36.199674 ] },
        { _key: "b", coordinates : [ 135.827227, 34.755123 ] },
        { _key: "c", coordinates : [ 140.362435, 37.41623 ] },
        { _key: "d", coordinates : [ 135.820818, 34.736769 ] },
        { _key: "e", coordinates : [ 140.371997, 37.397514 ] },
        { _key: "f", coordinates : [ 140.375676, 37.442712 ] },
        { _key: "g", coordinates : [ 136.711924, 35.405093 ] },
        { _key: "h", coordinates : [ 138.609493, 36.208831 ] },
        { _key: "i", coordinates : [ 136.715309, 35.406745 ] },
        { _key: "j", coordinates : [ 139.781937, 35.894845 ] },
        { _key: "k", coordinates : [ 134.888787, 34.339736 ] },
        { _key: "l", coordinates : [ 134.899736, 34.341144 ] },
        { _key: "m", coordinates : [ 134.846816, 34.316229 ] }
      ].forEach(function(doc) {
        collection.insert(doc);
      });

      assertEqual(13, collection.count());

      var query = "FOR doc IN " + collection.name() + " LET n = (" +
                  "LET c = doc.coordinates FOR other IN WITHIN(" + collection.name() +
                 ", c[1], c[0], 1000) RETURN other._key) " +
                  "UPDATE doc WITH {others: n} IN " + collection.name();

      internal.db._query(query);

      query = "FOR doc IN " + collection.name() + " SORT doc._key " +
              "RETURN { key: doc._key, coordinates: doc.coordinates, others: doc.others }";

      var actual = internal.db._query(query).toArray();
      var expected = [
        { "key" : "a", "coordinates" : [ 138.46782, 36.199674 ], "others" : [ "a" ] },
        { "key" : "b", "coordinates" : [ 135.827227, 34.755123 ], "others" : [ "b" ] },
        { "key" : "c", "coordinates" : [ 140.362435, 37.41623 ], "others" : [ "c" ] },
        { "key" : "d", "coordinates" : [ 135.820818, 34.736769 ], "others" : [ "d" ] },
        { "key" : "e", "coordinates" : [ 140.371997, 37.397514 ], "others" : [ "e" ] },
        { "key" : "f", "coordinates" : [ 140.375676, 37.442712 ], "others" : [ "f" ] },
        { "key" : "g", "coordinates" : [ 136.711924, 35.405093 ], "others" : [ "g", "i" ] },
        { "key" : "h", "coordinates" : [ 138.609493, 36.208831 ], "others" : [ "h" ] },
        { "key" : "i", "coordinates" : [ 136.715309, 35.406745 ], "others" : [ "i", "g" ] },
        { "key" : "j", "coordinates" : [ 139.781937, 35.894845 ], "others" : [ "j" ] },
        { "key" : "k", "coordinates" : [ 134.888787, 34.339736 ], "others" : [ "k" ] },
        { "key" : "l", "coordinates" : [ 134.899736, 34.341144 ], "others" : [ "l" ] },
        { "key" : "m", "coordinates" : [ 134.846816, 34.316229 ], "others" : [ "m" ] }
      ];

      assertEqual(expected.length, actual.length);
      for (var i = 0; i < expected.length; ++i) {
        expected[i].coordinates[0] = expected[i].coordinates[0].toFixed(4);
        expected[i].coordinates[1] = expected[i].coordinates[1].toFixed(4);
        actual[i].coordinates[0] = actual[i].coordinates[0].toFixed(4);
        actual[i].coordinates[1] = actual[i].coordinates[1].toFixed(4);
      }

      assertEqual(expected, actual);
    },

////////////////////////////////////////////////////////////////////////////////
/// @brief test: index creation (list)
////////////////////////////////////////////////////////////////////////////////

    testCreationIndexLocationList : function () {
      var idx = collection.ensureGeoIndex("loc");
      var id = idx.id;

      assertNotEqual(0, id);
      assertEqual("geo", idx.type);
      assertFalse(idx.geoJson);
      assertEqual(["loc"], idx.fields);
      assertTrue(idx.isNewlyCreated);

      idx = collection.ensureGeoIndex("loc");

      assertEqual(id, idx.id);
      assertEqual("geo", idx.type);
      assertFalse(idx.geoJson);
      assertEqual(["loc"], idx.fields);
      assertFalse(idx.isNewlyCreated);

      idx = collection.ensureGeoIndex("loc", true);

      assertNotEqual(id, idx.id);
      assertEqual("geo", idx.type);
      assertTrue(idx.geoJson);
      assertEqual(["loc"], idx.fields);
      assertTrue(idx.isNewlyCreated);

      collection.unload();

      idx = collection.ensureGeoIndex("loc", true);

      assertNotEqual(id, idx.id);
      assertEqual("geo", idx.type);
      assertTrue(idx.geoJson);
      assertEqual(["loc"], idx.fields);
      assertFalse(idx.isNewlyCreated);
    },

////////////////////////////////////////////////////////////////////////////////
/// @brief test: index creation (list, geo-json)
////////////////////////////////////////////////////////////////////////////////

    testCreationIndexLocationListGeo : function () {
      var idx = collection.ensureGeoIndex("loc", true);
      var id = idx.id;

      assertNotEqual(0, id);
      assertEqual("geo", idx.type);
      assertTrue(idx.geoJson);
      assertEqual(["loc"], idx.fields);
      assertTrue(idx.isNewlyCreated);

      idx = collection.ensureGeoIndex("loc", true);

      assertEqual(id, idx.id);
      assertEqual("geo", idx.type);
      assertTrue(idx.geoJson);
      assertEqual(["loc"], idx.fields);
      assertFalse(idx.isNewlyCreated);

      idx = collection.ensureGeoIndex("loc", false);

      assertNotEqual(id, idx.id);
      assertEqual("geo", idx.type);
      assertFalse(idx.geoJson);
      assertEqual(["loc"], idx.fields);
      assertTrue(idx.isNewlyCreated);

      collection.unload();

      idx = collection.ensureGeoIndex("loc", false);

      assertNotEqual(id, idx.id);
      assertEqual("geo", idx.type);
      assertFalse(idx.geoJson);
      assertEqual(["loc"], idx.fields);
      assertFalse(idx.isNewlyCreated);
    },

////////////////////////////////////////////////////////////////////////////////
/// @brief test: index creation (attributes)
////////////////////////////////////////////////////////////////////////////////

    testCreationIndexLocationAttributes : function () {
      var idx = collection.ensureGeoIndex("lat", "lon");
      var id = idx.id;

      assertNotEqual(0, id);
      assertEqual("geo", idx.type);
      assertEqual(["lat", "lon"], idx.fields);
      assertTrue(idx.isNewlyCreated);

      idx = collection.ensureGeoIndex("lat", "lon");

      assertEqual(id, idx.id);
      assertEqual("geo", idx.type);
      assertEqual(["lat", "lon"], idx.fields);
      assertFalse(idx.isNewlyCreated);

      collection.unload();

      idx = collection.ensureGeoIndex("lat", "lon");

      assertEqual(id, idx.id);
      assertEqual("geo", idx.type);
      assertEqual(["lat", "lon"], idx.fields);
      assertFalse(idx.isNewlyCreated);
    },

////////////////////////////////////////////////////////////////////////////////
/// @brief test: constraint creation (list)
////////////////////////////////////////////////////////////////////////////////

    testCreationConstraintLocationList : function () {
      var idx = collection.ensureGeoConstraint("loc", false);
      var id = idx.id;

      assertNotEqual(0, id);
      assertEqual("geo", idx.type);
      assertTrue(idx.sparse);
      assertFalse(idx.geoJson);
      assertEqual(["loc"], idx.fields);
      assertTrue(idx.isNewlyCreated);

      idx = collection.ensureGeoConstraint("loc", false);

      assertEqual(id, idx.id);
      assertEqual("geo", idx.type);
      assertTrue(idx.sparse);
      assertFalse(idx.geoJson);
      assertEqual(["loc"], idx.fields);
      assertFalse(idx.isNewlyCreated);

      idx = collection.ensureGeoConstraint("loc", true, false);

      assertNotEqual(id, idx.id);
      assertEqual("geo", idx.type);
      assertTrue(idx.sparse);
      assertTrue(idx.geoJson);
      assertEqual(["loc"], idx.fields);
      assertTrue(idx.isNewlyCreated);

      collection.unload();

      idx = collection.ensureGeoConstraint("loc", true, false);

      assertNotEqual(id, idx.id);
      assertEqual("geo", idx.type);
      assertTrue(idx.sparse);
      assertTrue(idx.geoJson);
      assertEqual(["loc"], idx.fields);
      assertFalse(idx.isNewlyCreated);
    },

////////////////////////////////////////////////////////////////////////////////
/// @brief test: constraint creation (list, geo-json)
////////////////////////////////////////////////////////////////////////////////

    testCreationConstraintLocationListGeo : function () {
      var idx = collection.ensureGeoConstraint("loc", true, false);
      var id = idx.id;

      assertNotEqual(0, id);
      assertEqual("geo", idx.type);
      assertTrue(idx.sparse);
      assertTrue(idx.geoJson);
      assertEqual(["loc"], idx.fields);
      assertTrue(idx.isNewlyCreated);

      idx = collection.ensureGeoConstraint("loc", true, false);

      assertEqual(id, idx.id);
      assertEqual("geo", idx.type);
      assertTrue(idx.sparse);
      assertTrue(idx.geoJson);
      assertEqual(["loc"], idx.fields);
      assertFalse(idx.isNewlyCreated);

      idx = collection.ensureGeoConstraint("loc", false, false);

      assertNotEqual(id, idx.id);
      assertEqual("geo", idx.type);
      assertTrue(idx.sparse);
      assertFalse(idx.geoJson);
      assertEqual(["loc"], idx.fields);
      assertTrue(idx.isNewlyCreated);

      collection.unload();

      idx = collection.ensureGeoConstraint("loc", false, false);

      assertNotEqual(id, idx.id);
      assertEqual("geo", idx.type);
      assertTrue(idx.sparse);
      assertFalse(idx.geoJson);
      assertEqual(["loc"], idx.fields);
      assertFalse(idx.isNewlyCreated);
    },

////////////////////////////////////////////////////////////////////////////////
/// @brief test: constraint creation (attributes)
////////////////////////////////////////////////////////////////////////////////

    testCreationConstraintLocationAttributes : function () {
      var idx = collection.ensureGeoConstraint("lat", "lon", false);
      var id = idx.id;

      assertNotEqual(0, id);
      assertEqual("geo", idx.type);
      assertTrue(idx.sparse);
      assertEqual(["lat", "lon"], idx.fields);
      assertTrue(idx.isNewlyCreated);

      idx = collection.ensureGeoConstraint("lat", "lon", false);

      assertEqual(id, idx.id);
      assertEqual("geo", idx.type);
      assertTrue(idx.sparse);
      assertEqual(["lat", "lon"], idx.fields);
      assertFalse(idx.isNewlyCreated);

      collection.unload();

      idx = collection.ensureGeoConstraint("lat", "lon", false);

      assertEqual(id, idx.id);
      assertEqual("geo", idx.type);
      assertTrue(idx.sparse);
      assertEqual(["lat", "lon"], idx.fields);
      assertFalse(idx.isNewlyCreated);
    },

////////////////////////////////////////////////////////////////////////////////
/// @brief test: constraint creation (list)
////////////////////////////////////////////////////////////////////////////////

    testCreationConstraintNullLocationList : function () {
      var idx = collection.ensureGeoConstraint("loc", true);
      var id = idx.id;

      assertNotEqual(0, id);
      assertEqual("geo", idx.type);
      assertTrue(idx.sparse);
      assertTrue(idx.geoJson);
      assertEqual(["loc"], idx.fields);
      assertTrue(idx.isNewlyCreated);

      idx = collection.ensureGeoConstraint("loc", true);

      assertEqual(id, idx.id);
      assertEqual("geo", idx.type);
      assertTrue(idx.sparse);
      assertTrue(idx.geoJson);
      assertEqual(["loc"], idx.fields);
      assertFalse(idx.isNewlyCreated);

      collection.unload();

      idx = collection.ensureGeoConstraint("loc", false);

      assertNotEqual(id, idx.id);
      assertEqual("geo", idx.type);
      assertTrue(idx.sparse);
      assertFalse(idx.geoJson);
      assertEqual(["loc"], idx.fields);
      assertTrue(idx.isNewlyCreated);

      collection.unload();

      idx = collection.ensureGeoConstraint("loc", false);

      assertNotEqual(id, idx.id);
      assertEqual("geo", idx.type);
      assertTrue(idx.sparse);
      assertFalse(idx.geoJson);
      assertEqual(["loc"], idx.fields);
      assertFalse(idx.isNewlyCreated);
    },

////////////////////////////////////////////////////////////////////////////////
/// @brief test: constraint creation (list, geo-json)
////////////////////////////////////////////////////////////////////////////////

    testCreationConstraintNullLocationListGeo : function () {
      var idx = collection.ensureGeoConstraint("loc", true, true);
      var id = idx.id;

      assertNotEqual(0, id);
      assertEqual("geo", idx.type);
      assertTrue(idx.sparse);
      assertTrue(idx.geoJson);
      assertEqual(["loc"], idx.fields);
      assertTrue(idx.isNewlyCreated);

      idx = collection.ensureGeoConstraint("loc", true, true);

      assertEqual(id, idx.id);
      assertEqual("geo", idx.type);
      assertTrue(idx.sparse);
      assertTrue(idx.geoJson);
      assertEqual(["loc"], idx.fields);
      assertFalse(idx.isNewlyCreated);

      idx = collection.ensureGeoConstraint("loc", false, true);

      assertNotEqual(id, idx.id);
      assertEqual("geo", idx.type);
      assertTrue(idx.sparse);
      assertFalse(idx.geoJson);
      assertEqual(["loc"], idx.fields);
      assertTrue(idx.isNewlyCreated);

      collection.unload();

      idx = collection.ensureGeoConstraint("loc", false, true);

      assertNotEqual(id, idx.id);
      assertEqual("geo", idx.type);
      assertTrue(idx.sparse);
      assertFalse(idx.geoJson);
      assertEqual(["loc"], idx.fields);
      assertFalse(idx.isNewlyCreated);
    },

////////////////////////////////////////////////////////////////////////////////
/// @brief test: constraint creation (attributes)
////////////////////////////////////////////////////////////////////////////////

    testCreationConstraintNullLocationAttributes : function () {
      var idx = collection.ensureGeoConstraint("lat", "lon", true);
      var id = idx.id;

      assertNotEqual(0, id);
      assertEqual("geo", idx.type);
      assertTrue(idx.sparse);
      assertEqual(["lat", "lon"], idx.fields);
      assertTrue(idx.isNewlyCreated);

      idx = collection.ensureGeoConstraint("lat", "lon", true);

      assertEqual(id, idx.id);
      assertEqual("geo", idx.type);
      assertTrue(idx.sparse);
      assertEqual(["lat", "lon"], idx.fields);
      assertFalse(idx.isNewlyCreated);

      collection.unload();

      idx = collection.ensureGeoConstraint("lat", "lon", true);

      assertEqual(id, idx.id);
      assertEqual("geo", idx.type);
      assertTrue(idx.sparse);
      assertEqual(["lat", "lon"], idx.fields);
      assertFalse(idx.isNewlyCreated);
    }
  };
}


////////////////////////////////////////////////////////////////////////////////
/// @brief test suite: Simple Queries
////////////////////////////////////////////////////////////////////////////////

function GeoIndexErrorHandlingSuite() {
  'use strict';
  var cn = "UnitTestsCollectionGeo";
  var collection = null;

  return {

////////////////////////////////////////////////////////////////////////////////
/// @brief set up
////////////////////////////////////////////////////////////////////////////////

  setUp : function () {
    internal.db._drop(cn);
    collection = internal.db._create(cn, { waitForSync : false });
  },

////////////////////////////////////////////////////////////////////////////////
/// @brief tear down
////////////////////////////////////////////////////////////////////////////////

  tearDown : function () {
    collection.drop();
    internal.wait(0.0);
  },

////////////////////////////////////////////////////////////////////////////////
/// @brief test: error handling index
////////////////////////////////////////////////////////////////////////////////

    testErrorHandlingIndexList : function () {
      collection.ensureGeoIndex("loc");

      var d1 = collection.save({ a : 1 });
      var d2 = collection.save({ loc : null });
      var d3 = collection.save({ loc : [0] });
      var d4 = collection.save({ loc : [ -100, -200 ] });
      collection.save({ loc : [ -10, -20 ]});

      assertEqual(1, collection.near(0,0).toArray().length);

      d1 = collection.replace(d1, { loc : [ 0, 0 ] });
      d2 = collection.replace(d2, { loc : [ 0, 0 ] });
      d3 = collection.replace(d3, { loc : [ 0, 0 ] });
      d4 = collection.replace(d4, { loc : [ 0, 0 ] });

      assertEqual(5, collection.near(0,0).toArray().length);

      collection.replace(d1, { a : 2 });
      collection.replace(d2, { loc : null });
      collection.replace(d3, { loc : [ 0 ] });
      collection.replace(d4, { loc : [ -100, -200 ] });

      assertEqual(1, collection.near(0,0).toArray().length);
    }

  };
}


////////////////////////////////////////////////////////////////////////////////
/// @brief test suite: Simple Queries
////////////////////////////////////////////////////////////////////////////////

function GeoIndexSimpleQueriesSuite() {
  'use strict';
  var cn = "UnitTestsCollectionGeo";
  var collection = null;

  return {

////////////////////////////////////////////////////////////////////////////////
/// @brief set up
////////////////////////////////////////////////////////////////////////////////

  setUp : function () {
    internal.db._drop(cn);
    collection = internal.db._create(cn, { waitForSync : false });

    for (var i = -90;  i <= 90;  i += 10) {
      for (var j = -180; j <= 180;  j+= 10) {
        collection.save({
          name : "Name/" + i + "/" + j,
              vloc : [ i, j ],
              gloc : [ j, i ],
              aloc : { latitude : i, longitude : j }
          });
      }
    }
  },

////////////////////////////////////////////////////////////////////////////////
/// @brief tear down
////////////////////////////////////////////////////////////////////////////////

  tearDown : function () {
    collection.drop();
  },

////////////////////////////////////////////////////////////////////////////////
/// @brief test: near query (list)
////////////////////////////////////////////////////////////////////////////////

    testNearLocationList : function () {
      collection.ensureGeoIndex("vloc");

      assertEqual(collection.count(), 703);

      var r = collection.near(0,0).toArray();

      assertEqual(100, r.length);

      r = collection.near(0,0).limit(3).toArray();

      assertEqual(3, r.length);
      assertEqual([0,0], r[0].vloc);

      r = collection.near(0,0).limit(1000).toArray();

      assertEqual(703, r.length);
      assertEqual([0,0], r[0].vloc);
    },

////////////////////////////////////////////////////////////////////////////////
/// @brief test: near query (list geo)
////////////////////////////////////////////////////////////////////////////////

    testNearLocationListGeo : function () {
      collection.ensureGeoIndex("gloc", true);

      assertEqual(collection.count(), 703);

      var r = collection.near(0,0).toArray();

      assertEqual(100, r.length);

      r = collection.near(0,0).limit(3).toArray();

      assertEqual(3, r.length);
      assertEqual([0,0], r[0].gloc);

      r = collection.near(0,0).limit(1000).toArray();

      assertEqual(703, r.length);
      assertEqual([0,0], r[0].gloc);
    },

////////////////////////////////////////////////////////////////////////////////
/// @brief test: near query (attributes)
////////////////////////////////////////////////////////////////////////////////

    testNearLocationAttributes : function () {
      collection.ensureGeoIndex("aloc.latitude", "aloc.longitude");

      assertEqual(collection.count(), 703);

      var r = collection.near(0,0).toArray();

      assertEqual(100, r.length);

      r = collection.near(0,0).limit(3).toArray();

      assertEqual(3, r.length);
      assertEqual({ latitude: 0, longitude: 0 }, r[0].aloc);

      r = collection.near(0,0).limit(1000).toArray();

      assertEqual(703, r.length);
      assertEqual({ latitude: 0, longitude: 0 }, r[0].aloc);
    },

////////////////////////////////////////////////////////////////////////////////
/// @brief test: near query (distance)
////////////////////////////////////////////////////////////////////////////////

    testNearLocationDistance : function () {
      collection.ensureGeoIndex("vloc");

      assertEqual(collection.count(), 703);

      var r = collection.near(0,0).distance().toArray();

      assertEqual(100, r.length);
      assertEqual(0, r[0].distance);
      assertEqual(1111949, Math.round(r[1].distance));
    },

////////////////////////////////////////////////////////////////////////////////
/// @brief test: near query (distance)
////////////////////////////////////////////////////////////////////////////////

    testNearLocationNamedDistance : function () {
      collection.ensureGeoIndex("vloc");

      assertEqual(collection.count(), 703);

      var r = collection.near(0,0).distance("xyz").toArray();

      assertEqual(100, r.length);
      assertEqual(undefined, r[0].distance);
      assertEqual(0, r[0].xyz);
    },

////////////////////////////////////////////////////////////////////////////////
/// @brief test: within query (list)
////////////////////////////////////////////////////////////////////////////////

    testWithinLocationList : function () {
      collection.ensureGeoIndex("vloc");

      assertEqual(collection.count(), 703);

      var r = collection.within(50, 0, 1111949 * 6).toArray();

      assertEqual(218, r.length);

      r = collection.within(50, 0, 1111949 * 4).limit(3).toArray();

      assertEqual(3, r.length);
      assertEqual([50,0], r[0].vloc);

      r = collection.within(50, 0, 1111949 * 20).limit(1000).toArray();

      assertEqual(703, r.length);
      assertEqual([50,0], r[0].vloc);
    },

////////////////////////////////////////////////////////////////////////////////
/// @brief test: within query (list geo)
////////////////////////////////////////////////////////////////////////////////

    testWithinLocationListGeo : function () {
      collection.ensureGeoIndex("gloc", true);

      assertEqual(collection.count(), 703);

      var r = collection.within(50, 0, 1111949 * 4).toArray();

      assertEqual(87, r.length);

      r = collection.within(50, 0, 1111949 * 4).limit(3).toArray();

      assertEqual(3, r.length);
      assertEqual([0,50], r[0].gloc);

      r = collection.within(50, 0, 1111949 * 20).limit(1000).toArray();

      assertEqual(703, r.length);
      assertEqual([0,50], r[0].gloc);
    },

////////////////////////////////////////////////////////////////////////////////
/// @brief test: within query (attributes)
////////////////////////////////////////////////////////////////////////////////

    testWithinLocationAttributes : function () {
      collection.ensureGeoIndex("aloc.latitude", "aloc.longitude");

      assertEqual(collection.count(), 703);

      var r = collection.within(50, 0, 1111949 * 4).toArray();

      assertEqual(87, r.length);

      r = collection.within(50, 0, 1111949 * 4).limit(3).toArray();

      assertEqual(3, r.length);
      assertEqual({ latitude: 50, longitude: 0 }, r[0].aloc);

      r = collection.within(50, 0, 1111949 * 20).limit(1000).toArray();

      assertEqual(703, r.length);
      assertEqual({ latitude: 50, longitude: 0 }, r[0].aloc);
    },

////////////////////////////////////////////////////////////////////////////////
/// @brief test: within query (distance)
////////////////////////////////////////////////////////////////////////////////

    testWithinLocationDistance : function () {
      collection.ensureGeoIndex("vloc");

      assertEqual(collection.count(), 703);

      var r = collection.within(50, 0, 1111949 * 4).distance().toArray();

      assertEqual(87, r.length);
      assertEqual(0, r[0].distance);
      assertEqual(714214, Math.round(r[1].distance));
    },

////////////////////////////////////////////////////////////////////////////////
/// @brief test: within query (distance)
////////////////////////////////////////////////////////////////////////////////

    testWithinLocationNamedDistance : function () {
      collection.ensureGeoIndex("vloc");

      assertEqual(collection.count(), 703);

      var r = collection.within(50, 0, 1111949 * 4).distance("xyz").toArray();

      assertEqual(87, r.length);
      assertEqual(undefined, r[0].distance);
      assertEqual(0, r[0].xyz);
      assertEqual(714214, Math.round(r[1].xyz));
    },

////////////////////////////////////////////////////////////////////////////////
/// @brief test: selecting (distance)
////////////////////////////////////////////////////////////////////////////////

    testSelectGeoIndex : function () {
      collection.ensureGeoIndex("vloc");
      collection.ensureGeoIndex("gloc", true);

      assertEqual(collection.count(), 703);

      var r = collection.geo("vloc").within(50, 0, 1000).toArray();

      assertEqual(1, r.length);
      assertEqual([50, 0], r[0].vloc);

      r = collection.geo("gloc", true).within(50, 0, 1000).toArray();

      assertEqual(1, r.length);
      assertEqual([0, 50], r[0].gloc);
    },

////////////////////////////////////////////////////////////////////////////////
/// @brief test: within rectangle
////////////////////////////////////////////////////////////////////////////////

    testWithinRectangleFlat : function () {
      collection.ensureGeoIndex("lat", "lon");
      var doc = collection.save({ location: [ 50, 50 ] });
      doc = collection.save({ lat: 2, lon: 2 });

      var r = collection.near(0, 0).limit(1).toArray();
      assertEqual(1, r.length);
      assertEqual(doc._key, r[0]._key);

      r = collection.within(0, 0, 1000000).toArray();
      assertEqual(1, r.length);
      assertEqual(doc._key, r[0]._key);

      r = collection.withinRectangle(0, 0, 5, 5).toArray();
      assertEqual(1, r.length);
      assertEqual(doc._key, r[0]._key);
    },

////////////////////////////////////////////////////////////////////////////////
/// @brief test: within rectangle
////////////////////////////////////////////////////////////////////////////////

    testWithinRectangleFlatNoDocs : function () {
      collection.ensureGeoIndex("lat", "lon");
      collection.save({ location: { lat: 2, lon: 2 } });
      collection.save({ lat: "2222", lon: "2222" });
      collection.save({ lat: 2, lon: "2222" });
      collection.save({ lat: "2222", lon: 2 });
      collection.save({ lat: 2, lon: null });
      collection.save({ lat: null, lon: 2 });
      collection.save({ lat: null, lon: null });
      collection.save({ lat: true, lon: true });
      collection.save({ lat: [ 2, 2 ], lon: [ 2, 2 ] });

      var r = collection.near(0, 0).toArray();
      assertEqual(0, r.length);

      r = collection.within(0, 0, 1000000).toArray();
      assertEqual(0, r.length);

      r = collection.withinRectangle(0, 0, 5, 5).toArray();
      assertEqual(0, r.length);
    },

////////////////////////////////////////////////////////////////////////////////
/// @brief test: within rectangle
////////////////////////////////////////////////////////////////////////////////

    testWithinRectangleSingleFlat : function () {
      collection.ensureGeoIndex("location");
      var doc = collection.save({ location: [ 50, 50 ] });
      doc = collection.save({ location: [ 2, 2 ] });

      var r = collection.near(0, 0).limit(1).toArray();
      assertEqual(1, r.length);
      assertEqual(doc._key, r[0]._key);

      r = collection.within(0, 0, 1000000).toArray();
      assertEqual(1, r.length);
      assertEqual(doc._key, r[0]._key);

      r = collection.withinRectangle(0, 0, 5, 5).toArray();
      assertEqual(1, r.length);
      assertEqual(doc._key, r[0]._key);
    },

////////////////////////////////////////////////////////////////////////////////
/// @brief test: within rectangle
////////////////////////////////////////////////////////////////////////////////

    testWithinRectangleSingleFlatNoDocs : function () {
      collection.ensureGeoIndex("location");
      collection.save({ location: { lat: 2, lon: 2 } });
      collection.save({ location: "2222" });
      collection.save({ location: 2 });
      collection.save({ location: null });
      collection.save({ location: true });

      var r = collection.near(0, 0).toArray();
      assertEqual(0, r.length);

      r = collection.within(0, 0, 1000000).toArray();
      assertEqual(0, r.length);

      r = collection.withinRectangle(0, 0, 5, 5).toArray();
      assertEqual(0, r.length);
    },

////////////////////////////////////////////////////////////////////////////////
/// @brief test: within rectangle
////////////////////////////////////////////////////////////////////////////////

    testWithinRectangleNested : function () {
      collection.ensureGeoIndex("location.lat", "location.lon");
      var doc = collection.save({ location: { lat: 50, lon: 50 } });
      doc = collection.save({ location: { lat: 2, lon: 2 } });

      var r = collection.near(0, 0).limit(1).toArray();
      assertEqual(1, r.length);
      assertEqual(doc._key, r[0]._key);

      r = collection.within(0, 0, 1000000).toArray();
      assertEqual(1, r.length);
      assertEqual(doc._key, r[0]._key);

      r = collection.withinRectangle(0, 0, 5, 5).toArray();
      assertEqual(1, r.length);
      assertEqual(doc._key, r[0]._key);
    },

////////////////////////////////////////////////////////////////////////////////
/// @brief test: within rectangle
////////////////////////////////////////////////////////////////////////////////

    testWithinRectangleNestedNoDocs : function () {
      collection.ensureGeoIndex("location.lat", "location.lon");
      collection.save({ location: { foo: 2, bar: 2 } });
      collection.save({ location: { lat: "2222", lon: "2222" } });
      collection.save({ location: { lat: [ 2, 2 ], lon: [ 2, 2 ] } });
      collection.save({ location: [ 2, 2 ] });
      collection.save({ location: "2222" });
      collection.save({ location: null });
      collection.save({ location: true });
      collection.save({ lat: 2, lon: 2 });

      var r = collection.near(0, 0).toArray();
      assertEqual(0, r.length);

      r = collection.within(0, 0, 1000000).toArray();
      assertEqual(0, r.length);

      r = collection.withinRectangle(0, 0, 5, 5).toArray();
      assertEqual(0, r.length);
    },

////////////////////////////////////////////////////////////////////////////////
/// @brief test: save after truncate
////////////////////////////////////////////////////////////////////////////////

    testSaveAfterTruncateWithoutDocs : function () {
      collection.ensureGeoIndex("location");
      collection.truncate();
      collection.save({location: [1, 1]});

      assertEqual(1, collection.count());
    },

    testSaveAfterTruncateWithDocs : function () {
      collection.ensureGeoIndex("location");
      collection.save({location: [1, 1]});
      collection.truncate();
      collection.save({location: [1, 1]});

      assertEqual(1, collection.count());
    }

  };
}

////////////////////////////////////////////////////////////////////////////////
/// @brief test suite: Creation
////////////////////////////////////////////////////////////////////////////////

function SphericalIndexCreationSuite() {
  'use strict';
  var cn = "UnitTestsCollectionSpherical";
  var collection = null;

  return {

////////////////////////////////////////////////////////////////////////////////
/// @brief set up
////////////////////////////////////////////////////////////////////////////////

    setUp : function () {
      internal.db._drop(cn);
      collection = internal.db._create(cn, { waitForSync : false });
    },

////////////////////////////////////////////////////////////////////////////////
/// @brief tear down
////////////////////////////////////////////////////////////////////////////////

    tearDown : function () {
      collection.unload();
      collection.drop();
      internal.wait(0.0);
    },

////////////////////////////////////////////////////////////////////////////////
/// @brief test: updates
////////////////////////////////////////////////////////////////////////////////

    testSPIUpdates : function () {
      collection.truncate();

      //collection.ensureGeoIndex("coordinates", true);
      collection.ensureIndex({type: "geo",
                              fields: ["coordinates"],
                              geoJson: true,
                              legacy: false });

      [
        { _key: "a", coordinates : [ 138.46782, 36.199674 ] },
        { _key: "b", coordinates : [ 135.827227, 34.755123 ] },
        { _key: "c", coordinates : [ 140.362435, 37.41623 ] },
        { _key: "d", coordinates : [ 135.820818, 34.736769 ] },
        { _key: "e", coordinates : [ 140.371997, 37.397514 ] },
        { _key: "f", coordinates : [ 140.375676, 37.442712 ] },
        { _key: "g", coordinates : [ 136.711924, 35.405093 ] },
        { _key: "h", coordinates : [ 138.609493, 36.208831 ] },
        { _key: "i", coordinates : [ 136.715309, 35.406745 ] },
        { _key: "j", coordinates : [ 139.781937, 35.894845 ] },
        { _key: "k", coordinates : [ 134.888787, 34.339736 ] },
        { _key: "l", coordinates : [ 134.899736, 34.341144 ] },
        { _key: "m", coordinates : [ 134.846816, 34.316229 ] }
      ].forEach(function(doc) {
        collection.insert(doc);
      });

      assertEqual(13, collection.count());
      var query = "FOR doc IN " + collection.name() + " LET n = (" +
                  "LET c = doc.coordinates\n FOR other IN " + collection.name() + "\n" +
                  "SORT DISTANCE(c[1], c[0], other.coordinates[1], other.coordinates[0]) ASC\n" +
                  "FILTER DISTANCE(c[1], c[0], other.coordinates[1], other.coordinates[0]) < 1000\n" +
                  "RETURN other._key) UPDATE doc WITH {others: n} IN " + collection.name();

      internal.db._query(query);

      query = "FOR doc IN " + collection.name() + " SORT doc._key " +
              "RETURN { key: doc._key, coordinates: doc.coordinates, others: doc.others }";

      var actual = internal.db._query(query).toArray();
      var expected = [
        { "key" : "a", "coordinates" : [ 138.46782, 36.199674 ], "others" : [ "a" ] },
        { "key" : "b", "coordinates" : [ 135.827227, 34.755123 ], "others" : [ "b" ] },
        { "key" : "c", "coordinates" : [ 140.362435, 37.41623 ], "others" : [ "c" ] },
        { "key" : "d", "coordinates" : [ 135.820818, 34.736769 ], "others" : [ "d" ] },
        { "key" : "e", "coordinates" : [ 140.371997, 37.397514 ], "others" : [ "e" ] },
        { "key" : "f", "coordinates" : [ 140.375676, 37.442712 ], "others" : [ "f" ] },
        { "key" : "g", "coordinates" : [ 136.711924, 35.405093 ], "others" : [ "g", "i" ] },
        { "key" : "h", "coordinates" : [ 138.609493, 36.208831 ], "others" : [ "h" ] },
        { "key" : "i", "coordinates" : [ 136.715309, 35.406745 ], "others" : [ "i", "g" ] },
        { "key" : "j", "coordinates" : [ 139.781937, 35.894845 ], "others" : [ "j" ] },
        { "key" : "k", "coordinates" : [ 134.888787, 34.339736 ], "others" : [ "k" ] },
        { "key" : "l", "coordinates" : [ 134.899736, 34.341144 ], "others" : [ "l" ] },
        { "key" : "m", "coordinates" : [ 134.846816, 34.316229 ], "others" : [ "m" ] }
      ];
      for (let i = 0; i < expected.length; i++) {
        assertEqual(expected[i], actual[i]);
      }

      assertEqual(expected.length, actual.length);
      for (var i = 0; i < expected.length; ++i) {
        expected[i].coordinates[0] = expected[i].coordinates[0].toFixed(4);
        expected[i].coordinates[1] = expected[i].coordinates[1].toFixed(4);
        actual[i].coordinates[0] = actual[i].coordinates[0].toFixed(4);
        actual[i].coordinates[1] = actual[i].coordinates[1].toFixed(4);
      }

      assertEqual(expected, actual);
    },

////////////////////////////////////////////////////////////////////////////////
/// @brief test: index creation (list)
////////////////////////////////////////////////////////////////////////////////

    testSPICreationIndexLocationList : function () {
      //var idx = collection.ensureGeoIndex("loc");
      let idx = collection.ensureIndex({type: "geo", fields:["loc"], geoJson: false, legacy: false});
      var id = idx.id;

      assertNotEqual(0, id);
      assertEqual("geo", idx.type);
      assertFalse(idx.geoJson);
      assertFalse(idx.pointsOnly);
      assertEqual(["loc"], idx.fields);
      assertTrue(idx.isNewlyCreated);

      //idx = collection.ensureGeoIndex("loc");
      idx = collection.ensureIndex({type: "geo", fields:["loc"], geoJson: false, legacy: false});

      assertEqual(id, idx.id);
      assertEqual("geo", idx.type);
      assertFalse(idx.geoJson);
      assertFalse(idx.pointsOnly);
      assertEqual(["loc"], idx.fields);
      assertFalse(idx.isNewlyCreated);

      //idx = collection.ensureGeoIndex("loc", true);
      idx = collection.ensureIndex({type: "geo", fields:["loc"], geoJson: true, legacy: false});

      assertNotEqual(id, idx.id);
      assertEqual("geo", idx.type);
      assertTrue(idx.geoJson);
      assertFalse(idx.pointsOnly);
      assertEqual(["loc"], idx.fields);
      assertTrue(idx.isNewlyCreated);

      collection.unload();

      //idx = collection.ensureGeoIndex("loc", true);
      idx = collection.ensureIndex({type: "geo", fields:["loc"], geoJson: true, legacy: false});

      assertNotEqual(id, idx.id);
      assertEqual("geo", idx.type);
      assertTrue(idx.geoJson);
      assertFalse(idx.pointsOnly);
      assertEqual(["loc"], idx.fields);
      assertFalse(idx.isNewlyCreated);
    },

////////////////////////////////////////////////////////////////////////////////
/// @brief test: index creation (list, geo-json)
////////////////////////////////////////////////////////////////////////////////

    testSPICreationIndexLocationListGeo : function () {
      //var idx = collection.ensureGeoIndex("loc", true);
      let idx = collection.ensureIndex({type: "geo", fields:["loc"], geoJson: true, legacy: false});
      var id = idx.id;

      assertNotEqual(0, id);
      assertEqual("geo", idx.type);
      assertTrue(idx.geoJson);
      assertFalse(idx.pointsOnly);
      assertEqual(["loc"], idx.fields);
      assertTrue(idx.isNewlyCreated);

      //idx = collection.ensureGeoIndex("loc", true);
      idx = collection.ensureIndex({type: "geo", fields:["loc"], geoJson: true, legacy: false});

      assertEqual(id, idx.id);
      assertEqual("geo", idx.type);
      assertTrue(idx.geoJson);
      assertFalse(idx.pointsOnly);
      assertEqual(["loc"], idx.fields);
      assertFalse(idx.isNewlyCreated);

      //idx = collection.ensureGeoIndex("loc", false);
      idx = collection.ensureIndex({type: "geo", fields:["loc"], geoJson: false, legacy: false});

      assertNotEqual(id, idx.id);
      assertEqual("geo", idx.type);
      assertFalse(idx.geoJson);
      assertFalse(idx.pointsOnly);
      assertEqual(["loc"], idx.fields);
      assertTrue(idx.isNewlyCreated);

      collection.unload();

      //idx = collection.ensureGeoIndex("loc", false);
      idx = collection.ensureIndex({type: "geo", fields:["loc"], geoJson: false, legacy: false});

      assertNotEqual(id, idx.id);
      assertEqual("geo", idx.type);
      assertFalse(idx.geoJson);
      assertFalse(idx.pointsOnly);
      assertEqual(["loc"], idx.fields);
      assertFalse(idx.isNewlyCreated);
    },

////////////////////////////////////////////////////////////////////////////////
/// @brief test: index creation (attributes)
////////////////////////////////////////////////////////////////////////////////

    testSPICreationIndexLocationAttributes : function () {
      //var idx = collection.ensureGeoIndex("lat", "lon");
      let idx = collection.ensureIndex({type: "geo", fields:["lat", "lon"], legacy: false});
      var id = idx.id;

      assertNotEqual(0, id);
      assertEqual("geo", idx.type);
      assertEqual(["lat", "lon"], idx.fields);
      assertTrue(idx.isNewlyCreated);

      //idx = collection.ensureGeoIndex("lat", "lon");
      idx = collection.ensureIndex({type: "geo", fields:["lat", "lon"], legacy: false});

      assertEqual(id, idx.id);
      assertEqual("geo", idx.type);
      assertEqual(["lat", "lon"], idx.fields);
      assertFalse(idx.isNewlyCreated);

      collection.unload();

      //idx = collection.ensureGeoIndex("lat", "lon");
      idx = collection.ensureIndex({type: "geo", fields:["lat", "lon"], legacy: false});

      assertEqual(id, idx.id);
      assertEqual("geo", idx.type);
      assertEqual(["lat", "lon"], idx.fields);
      assertFalse(idx.isNewlyCreated);
    },

////////////////////////////////////////////////////////////////////////////////
/// @brief test: constraint creation (list)
////////////////////////////////////////////////////////////////////////////////

    testSPICreationConstraintLocationList : function () {
      //var idx = collection.ensureGeoConstraint("loc", false);
      let idx = collection.ensureIndex({type: "geo", fields:["loc"], geoJson: false, legacy: false});
      var id = idx.id;

      assertNotEqual(0, id);
      assertEqual("geo", idx.type);
      assertTrue(idx.sparse);
      assertFalse(idx.geoJson);
      assertFalse(idx.pointsOnly);
      assertEqual(["loc"], idx.fields);
      assertTrue(idx.isNewlyCreated);

      //idx = collection.ensureGeoConstraint("loc", false);
      idx = collection.ensureIndex({type: "geo", fields:["loc"], geoJson: false, legacy: false});

      assertEqual(id, idx.id);
      assertEqual("geo", idx.type);
      assertTrue(idx.sparse);
      assertFalse(idx.geoJson);
      assertFalse(idx.pointsOnly);
      assertEqual(["loc"], idx.fields);
      assertFalse(idx.isNewlyCreated);
    }
  };
}

////////////////////////////////////////////////////////////////////////////////
/// @brief executes the test suites
////////////////////////////////////////////////////////////////////////////////

jsunity.run(GeoIndexCreationSuite);
jsunity.run(GeoIndexErrorHandlingSuite);
jsunity.run(GeoIndexSimpleQueriesSuite);
jsunity.run(SphericalIndexCreationSuite);

return jsunity.done();