/*jslint indent: 2, nomen: true, maxlen: 80 */
/*global require, assertEqual, assertTrue */

////////////////////////////////////////////////////////////////////////////////
/// @brief test the graph class
///
/// @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 db = require("org/arangodb").db;
var SimpleQueryArray = require("org/arangodb/simple-query").SimpleQueryArray;

// -----------------------------------------------------------------------------
// --SECTION--                                  basic skips and limits for array
// -----------------------------------------------------------------------------

////////////////////////////////////////////////////////////////////////////////
/// @brief test suite: skip and limit with a collection
////////////////////////////////////////////////////////////////////////////////

function SimpleQueryArraySkipLimitSuite () {
  var numbers = null;
  var query = null;

  return {

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

    setUp : function () {
      numbers = [0,1,2,3,4,5,6,7,8,9];
      query = new SimpleQueryArray(numbers);
    },

////////////////////////////////////////////////////////////////////////////////
/// @brief test: skip
////////////////////////////////////////////////////////////////////////////////

    testSkip : function () {
      var n = query.clone().skip(0).toArray();

      assertEqual(n, numbers);

      n = query.clone().skip(1).toArray();

      assertEqual(n, numbers.slice(1,10));

      n = query.clone().skip(2).toArray();

      assertEqual(n, numbers.slice(2,10));

      n = query.clone().skip(1).skip(1).toArray();

      assertEqual(n, numbers.slice(2,10));

      n = query.clone().skip(10).toArray();
      
      assertEqual(n, []);

      n = query.clone().skip(11).toArray();

      assertEqual(n, []);

      n = query.clone().skip(9).toArray();

      assertEqual(n, [numbers[9]]);

      n = query.clone().skip(9).skip(1).toArray();

      assertEqual(n, []);
    },

////////////////////////////////////////////////////////////////////////////////
/// @brief test: limit
////////////////////////////////////////////////////////////////////////////////

    testLimit : function () {
      var n = query.clone().limit(10).toArray();

      assertEqual(n, numbers);

      n = query.clone().limit(9).toArray();

      assertEqual(n, numbers.slice(0,9));

      n = query.clone().limit(9).limit(8).limit(7).toArray();

      assertEqual(n, numbers.slice(0,7));
    },

////////////////////////////////////////////////////////////////////////////////
/// @brief test: skip and limit
////////////////////////////////////////////////////////////////////////////////

    testSkipLimit : function () {
      var n = query.clone().skip(0).limit(10).toArray();

      assertEqual(n, numbers);

      n = query.clone().limit(10).skip(0).toArray();

      assertEqual(n, numbers);

      n = query.clone().limit(9).skip(1).toArray();

      assertEqual(n, numbers.slice(1,9));

      n = query.clone().limit(9).skip(1).limit(7).toArray();

      assertEqual(n, numbers.slice(1,8));

      n = query.clone().skip(-5).limit(3).toArray();

      assertEqual(n, numbers.slice(5,8));

      n = query.clone().skip(-8).limit(7).skip(1).limit(4).toArray();

      assertEqual(n, numbers.slice(3,7));

      n = query.clone().skip(-10).limit(9).skip(1).limit(7).toArray();

      assertEqual(n, numbers.slice(1,8));
    }
  };
}

// -----------------------------------------------------------------------------
// --SECTION--                                    basic skips and limits for all
// -----------------------------------------------------------------------------

////////////////////////////////////////////////////////////////////////////////
/// @brief test suite: skip and limit with a collection
////////////////////////////////////////////////////////////////////////////////

function SimpleQueryAllSkipLimitSuite () {
  var cn = "UnitTestsCollectionSkipLimit";
  var collection = null;
  var numbers = null;
  var num = function(d) { return d.n; };

  return {

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

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

      for (var i = 0;  i < 10;  ++i) {
        collection.save({ n : i });
      }

      numbers = collection.all().toArray().map(num);
    },

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

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

////////////////////////////////////////////////////////////////////////////////
/// @brief test: skip
////////////////////////////////////////////////////////////////////////////////

    testAllSkip : function () {
      var n = collection.all().skip(0).toArray().map(num);

      assertEqual(n, numbers);

      n = collection.all().skip(1).toArray().map(num);

      assertEqual(n, numbers.slice(1,10));

      n = collection.all().skip(2).toArray().map(num);

      assertEqual(n, numbers.slice(2,10));

      n = collection.all().skip(1).skip(1).toArray().map(num);

      assertEqual(n, numbers.slice(2,10));

      n = collection.all().skip(10).toArray().map(num);
      
      assertEqual(n, []);

      n = collection.all().skip(11).toArray().map(num);

      assertEqual(n, []);

      n = collection.all().skip(9).toArray().map(num);

      assertEqual(n, [numbers[9]]);

      n = collection.all().skip(9).skip(1).toArray().map(num);

      assertEqual(n, []);
    },

////////////////////////////////////////////////////////////////////////////////
/// @brief test: limit
////////////////////////////////////////////////////////////////////////////////

    testAllLimit : function () {
      var n = collection.all().limit(10).toArray().map(num);

      assertEqual(n, numbers);

      n = collection.all().limit(9).toArray().map(num);

      assertEqual(n, numbers.slice(0,9));

      n = collection.all().limit(9).limit(8).limit(7).toArray().map(num);

      assertEqual(n, numbers.slice(0,7));
    },

////////////////////////////////////////////////////////////////////////////////
/// @brief test: skip and limit
////////////////////////////////////////////////////////////////////////////////

    testAllSkipLimit : function () {
      var n = collection.all().skip(0).limit(10).toArray().map(num);

      assertEqual(n, numbers);

      n = collection.all().limit(10).skip(0).toArray().map(num);

      assertEqual(n, numbers);

      n = collection.all().limit(9).skip(1).toArray().map(num);

      assertEqual(n, numbers.slice(1,9));

      n = collection.all().limit(9).skip(1).limit(7).toArray().map(num);

      assertEqual(n, numbers.slice(1,8));

      n = collection.all().skip(-5).limit(3).toArray().map(num);

      assertEqual(n, numbers.slice(5,8));

      n = collection.all().skip(-8).limit(7).skip(1).limit(4).toArray().map(num);

      assertEqual(n, numbers.slice(3,7));

      n = collection.all().skip(-10).limit(9).skip(1).limit(7).toArray().map(num);

      assertEqual(n, numbers.slice(1,8));
    }
  };
}

// -----------------------------------------------------------------------------
// --SECTION--                                         basic tests for byExample
// -----------------------------------------------------------------------------

////////////////////////////////////////////////////////////////////////////////
/// @brief test suite: query-by-example
////////////////////////////////////////////////////////////////////////////////

function SimpleQueryByExampleSuite () {
  var cn = "UnitTestsCollectionByExample";
  var collection = null;
  var id = function(d) { return d._id; };

  return {

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

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

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

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

////////////////////////////////////////////////////////////////////////////////
/// @brief test: byExample
////////////////////////////////////////////////////////////////////////////////

    testByExampleObject : function () {
      var d1 = collection.save({ i : 1 });
      var d2 = collection.save({ i : 1, a : { j : 1 } });
      var d3 = collection.save({ i : 1, a : { j : 1, k : 1 } });
      var d4 = collection.save({ i : 1, a : { j : 2, k : 2 } });
      var d5 = collection.save({ i : 2 });
      var d6 = collection.save({ i : 2, a : 2 });
      var d7 = collection.save({ i : 2, a : { j : 2, k : 2 } });
      var s;

      s = collection.byExample({ i : 1 }).toArray().map(id).sort();
      assertEqual([d1._id, d2._id, d3._id, d4._id].sort(), s);

      s = collection.byExample({ i : 2 }).toArray().map(id).sort();
      assertEqual([d5._id, d6._id, d7._id].sort(), s);

      s = collection.byExample({ a : { j : 1 } }).toArray().map(id).sort();
      assertEqual([d2._id], s);

      s = collection.byExample({ "a.j" : 1 }).toArray().map(id).sort();
      assertEqual([d2._id, d3._id].sort(), s);

      s = collection.byExample({ i : 2, "a.k" : 2 }).toArray().map(id).sort();
      assertEqual([d7._id], s);

      s = collection.firstExample({ "i" : 2, "a.k" : 2 });
      assertEqual(d7._id, s._id);

      s = collection.firstExample({ "i" : 2, "a.k" : 27 });
      assertEqual(null, s);
    },

////////////////////////////////////////////////////////////////////////////////
/// @brief test: byExample
////////////////////////////////////////////////////////////////////////////////

    testByExampleList : function () {
      var d1 = collection.save({ i : 1 });
      var d2 = collection.save({ i : 1, a : { j : 1 } });
      var d3 = collection.save({ i : 1, a : { j : 1, k : 1 } });
      var d4 = collection.save({ i : 1, a : { j : 2, k : 2 } });
      var d5 = collection.save({ i : 2 });
      var d6 = collection.save({ i : 2, a : 2 });
      var d7 = collection.save({ i : 2, a : { j : 2, k : 2 } });
      var s;

      s = collection.byExample("i", 1).toArray().map(id).sort();
      assertEqual([d1._id, d2._id, d3._id, d4._id].sort(), s);

      s = collection.byExample("i", 2).toArray().map(id).sort();
      assertEqual([d5._id, d6._id, d7._id].sort(), s);

      s = collection.byExample("a", { j : 1 }).toArray().map(id).sort();
      assertEqual([d2._id], s);

      s = collection.byExample("a.j", 1).toArray().map(id).sort();
      assertEqual([d2._id, d3._id].sort(), s);

      s = collection.byExample("i", 2, "a.k", 2).toArray().map(id).sort();
      assertEqual([d7._id], s);

      s = collection.firstExample("i", 2, "a.k", 2);
      assertEqual(d7._id, s._id);

      s = collection.firstExample("i", 2, "a.k", 27);
      assertEqual(null, s);
    },

////////////////////////////////////////////////////////////////////////////////
/// @brief test: removeByExample
////////////////////////////////////////////////////////////////////////////////

    testRemoveByExample : function () {
      var deleted;

      for (var i = 0; i < 50; ++i) {
        collection.save({ value : i });
      }

      deleted = collection.removeByExample({ value : 2 });
      assertEqual(1, deleted);

      deleted = collection.removeByExample({ value : 2 });
      assertEqual(0, deleted);

      deleted = collection.removeByExample({ value : 20 });
      assertEqual(1, deleted);
      
      deleted = collection.removeByExample({ value : 20 });
      assertEqual(0, deleted);

      deleted = collection.removeByExample({ value : 1 });
      assertEqual(1, deleted);
      
      // not existing documents
      deleted = collection.removeByExample({ value : 50 });
      assertEqual(0, deleted);
      
      deleted = collection.removeByExample({ value : null });
      assertEqual(0, deleted);
      
      deleted = collection.removeByExample({ value : "5" });
      assertEqual(0, deleted);
      
      deleted = collection.removeByExample({ peter : "meow" });
      assertEqual(0, deleted);

      collection.truncate();
      deleted = collection.removeByExample({ value : 4 });
      assertEqual(0, deleted);
    },

////////////////////////////////////////////////////////////////////////////////
/// @brief test: removeByExample
////////////////////////////////////////////////////////////////////////////////

    testRemoveByExampleMult : function () {
      var deleted;

      for (var i = 0; i < 5; ++i) {
        for (var j = 0; j < 5; ++j) {
          collection.save({ value1 : i, value2: j });
        }
      }

      deleted = collection.removeByExample({ value2 : 2 });
      assertEqual(5, deleted);

      deleted = collection.removeByExample({ value2 : 2 });
      assertEqual(0, deleted);

      deleted = collection.removeByExample({ value1 : 4 });
      assertEqual(4, deleted);
      
      deleted = collection.removeByExample({ value1 : 4 });
      assertEqual(0, deleted);

      // not existing documents
      deleted = collection.removeByExample({ value1 : 99 });
      assertEqual(0, deleted);
      
      deleted = collection.removeByExample({ value1 : "0" });
      assertEqual(0, deleted);
      
      deleted = collection.removeByExample({ meow : 1 });
      assertEqual(0, deleted);
      
      deleted = collection.removeByExample({ meow : "peter" });
      assertEqual(0, deleted);

      collection.truncate();
      deleted = collection.removeByExample({ value1: 3 });
      assertEqual(0, deleted);
    },

////////////////////////////////////////////////////////////////////////////////
/// @brief test: removeByExample
////////////////////////////////////////////////////////////////////////////////

    testRemoveByExampleLimit : function () {
      var deleted;

      for (var i = 0; i < 50; ++i) {
        collection.save({ value : 1 });
      }

      deleted = collection.removeByExample({ value : 1 }, false, 10);
      assertEqual(10, deleted);

      assertEqual(40, collection.count());

      deleted = collection.removeByExample({ value : 1 }, false, 20);
      assertEqual(20, deleted);
      
      assertEqual(20, collection.count());
      
      deleted = collection.removeByExample({ value : 1 }, false, 20);
      assertEqual(20, deleted);
      
      assertEqual(0, collection.count());
      
      deleted = collection.removeByExample({ value : 1 }, false, 20);
      assertEqual(0, deleted);
      
      assertEqual(0, collection.count());
    },

////////////////////////////////////////////////////////////////////////////////
/// @brief test: replaceByExample
////////////////////////////////////////////////////////////////////////////////

    testReplaceByExample : function () {
      var replaced;

      for (var i = 0; i < 50; ++i) {
        collection.save({ value : i });
      }

      replaced = collection.replaceByExample({ value : 2 }, { foo : "bar", bar : "baz" });
      assertEqual(1, replaced);

      assertEqual(50, collection.count());

      var doc = collection.firstExample({ foo : "bar", bar : "baz" });
      assertEqual("bar", doc.foo);
      assertEqual("baz", doc.bar);
      assertEqual(undefined, doc.value);

      // not existing documents
      replaced = collection.replaceByExample({ meow : true }, { });
      assertEqual(0, replaced);
      
      replaced = collection.replaceByExample({ value : null }, { });
      assertEqual(0, replaced);
      
      collection.truncate();
      replaced = collection.replaceByExample({ value : 6 }, { });
      assertEqual(0, replaced);
    },

////////////////////////////////////////////////////////////////////////////////
/// @brief test: replaceByExample
////////////////////////////////////////////////////////////////////////////////

    testReplaceByExampleLimit : function () {
      var replaced, docs;

      for (var i = 0; i < 50; ++i) {
        collection.save({ value : 1 });
      }

      replaced = collection.replaceByExample({ value : 1 }, { foo : "bar", bar : "baz" }, false, 10);
      assertEqual(10, replaced);

      assertEqual(50, collection.count());

      docs = collection.byExample({ foo : "bar", bar : "baz" }).toArray();
      assertEqual(10, docs.length);
      docs = collection.byExample({ value : 1 }).toArray();
      assertEqual(40, docs.length);
      
      replaced = collection.replaceByExample({ value : 1 }, { meow : false }, false, 15);
      assertEqual(15, replaced);

      assertEqual(50, collection.count());

      docs = collection.byExample({ foo : "bar", bar : "baz" }).toArray();
      assertEqual(10, docs.length);
      docs = collection.byExample({ meow : false }).toArray();
      assertEqual(15, docs.length);
      docs = collection.byExample({ value : 1 }).toArray();
      assertEqual(25, docs.length);
      
      // not existing documents
      replaced = collection.replaceByExample({ meow : true }, { }, false, 99);
      assertEqual(0, replaced);
      
      replaced = collection.replaceByExample({ value : null }, { }, false, 99);
      assertEqual(0, replaced);
      
      // check counts
      docs = collection.byExample({ foo : "bar", bar : "baz" }).toArray();
      assertEqual(10, docs.length);
      docs = collection.byExample({ meow : false }).toArray();
      assertEqual(15, docs.length);
      docs = collection.byExample({ value : 1 }).toArray();
      assertEqual(25, docs.length);
      
      collection.truncate();
      replaced = collection.replaceByExample({ value : 1 }, { }, false);
      assertEqual(0, replaced);
    },

////////////////////////////////////////////////////////////////////////////////
/// @brief test: updateByExample
////////////////////////////////////////////////////////////////////////////////

    testUpdateByExample : function () {
      var updated;

      for (var i = 0; i < 50; ++i) {
        collection.save({ value : i });
      }

      // update and keep old values
      updated = collection.updateByExample({ value : 2 }, { foo : "bar", bar : "baz" });
      assertEqual(1, updated);

      assertEqual(50, collection.count());

      var doc = collection.firstExample({ foo : "bar", bar : "baz" });
      assertEqual("bar", doc.foo);
      assertEqual("baz", doc.bar);
      assertEqual(2, doc.value);
      
      // update and remove old values
      updated = collection.updateByExample({ value : 5 }, { foo : "bart", bar : "baz", value : null }, false);
      assertEqual(1, updated);
      
      var doc = collection.firstExample({ foo : "bart", bar : "baz" });
      assertEqual("bart", doc.foo);
      assertEqual("baz", doc.bar);
      assertEqual(undefined, doc.value);
      
      // update and overwrite old values
      updated = collection.updateByExample({ value : 17 }, { foo : "barw", bar : "baz", value : 9 }, false);
      assertEqual(1, updated);
      
      var doc = collection.firstExample({ foo : "barw", bar : "baz" });
      assertEqual("barw", doc.foo);
      assertEqual("baz", doc.bar);
      assertEqual(9, doc.value);

      // not existing documents
      updated = collection.updateByExample({ meow : true }, { });
      assertEqual(0, updated);
      
      updated = collection.updateByExample({ value : null }, { });
      assertEqual(0, updated);
      
      collection.truncate();
      updated = collection.updateByExample({ value : 6 }, { });
      assertEqual(0, updated);
    },

////////////////////////////////////////////////////////////////////////////////
/// @brief test: updateByExample
////////////////////////////////////////////////////////////////////////////////

    testUpdateByExampleLimit : function () {
      var updated, docs;

      for (var i = 0; i < 50; ++i) {
        collection.save({ value : 1 });
      }

      // update some, keep old values
      updated = collection.updateByExample({ value : 1 }, { foo : "bar", bar : "baz" }, false, false, 10);
      assertEqual(10, updated);

      assertEqual(50, collection.count());

      docs = collection.byExample({ foo : "bar", bar : "baz" }).toArray();
      assertEqual(10, docs.length);
      docs = collection.byExample({ value : 1 }).toArray();
      assertEqual(50, docs.length);
      
      // update some others
      updated = collection.updateByExample({ value : 1 }, { meow : false }, false, false, 15);
      assertEqual(15, updated);

      assertEqual(50, collection.count());

      docs = collection.byExample({ foo : "bar", bar : "baz" }).toArray();
      assertEqual(10, docs.length);
      docs = collection.byExample({ meow : false }).toArray();
      assertEqual(15, docs.length);
      docs = collection.byExample({ value : 1 }).toArray();
      assertEqual(50, docs.length);

      // update some, remove old values
      updated = collection.updateByExample({ value : 1 }, { value : null, fox : true }, false, false, 5);
      assertEqual(5, updated);

      assertEqual(50, collection.count());

      docs = collection.byExample({ fox : true }).toArray();
      assertEqual(5, docs.length);
      docs = collection.byExample({ value : 1 }).toArray();
      assertEqual(45, docs.length);
      
      // update some, overwrite old values
      updated = collection.updateByExample({ value : 1 }, { value : 16 }, false, false, 10);
      assertEqual(10, updated);

      assertEqual(50, collection.count());

      docs = collection.byExample({ value : 16 }).toArray();
      assertEqual(10, docs.length);
      docs = collection.byExample({ fox : true }).toArray();
      assertEqual(5, docs.length);
      docs = collection.byExample({ value : 1 }).toArray();
      assertEqual(35, docs.length);
      
      // not existing documents
      updated = collection.updateByExample({ meow : true }, { }, false, false, 99);
      assertEqual(0, updated);
      
      updated = collection.updateByExample({ value : null }, { }, false, false, 99);
      assertEqual(0, updated);
      
      collection.truncate();
      updated = collection.updateByExample({ value : 1 }, { });
      assertEqual(0, updated);
    }

  };
}

// -----------------------------------------------------------------------------
// --SECTION--                                             basic tests for range
// -----------------------------------------------------------------------------

////////////////////////////////////////////////////////////////////////////////
/// @brief test suite: range
////////////////////////////////////////////////////////////////////////////////

function SimpleQueryRangeSuite () {
  var cn = "UnitTestsCollectionRange";
  var collection = null;
  var age = function(d) { return d.age; };

  return {

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

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

      for (var i = 0;  i < 100;  ++i) {
        collection.save({ age : i });
      }

      collection.ensureSkiplist("age");
    },

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

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

////////////////////////////////////////////////////////////////////////////////
/// @brief test: range
////////////////////////////////////////////////////////////////////////////////

    testRange : function () {
      var l = collection.range("age", 10, 13).toArray().map(age).sort();
      assertEqual([10,11,12], l);

      l = collection.closedRange("age", 10, 13).toArray().map(age).sort();
      assertEqual([10,11,12,13], l);
    }
  };
}

// -----------------------------------------------------------------------------
// --SECTION--                                      basic tests for unique range
// -----------------------------------------------------------------------------

////////////////////////////////////////////////////////////////////////////////
/// @brief test suite: range
////////////////////////////////////////////////////////////////////////////////

function SimpleQueryUniqueRangeSuite () {
  var cn = "UnitTestsCollectionRange";
  var collection = null;
  var age = function(d) { return d.age; };

  return {

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

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

      for (var i = 0;  i < 100;  ++i) {
        collection.save({ age : i });
      }

      collection.ensureUniqueSkiplist("age");
    },

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

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

////////////////////////////////////////////////////////////////////////////////
/// @brief test: range
////////////////////////////////////////////////////////////////////////////////

    testRange : function () {
      var l = collection.range("age", 10, 13).toArray().map(age).sort();
      assertEqual([10,11,12], l);

      l = collection.closedRange("age", 10, 13).toArray().map(age).sort();
      assertEqual([10,11,12,13], l);
    }
  };
}

// -----------------------------------------------------------------------------
// --SECTION--                                               basic tests for any
// -----------------------------------------------------------------------------

////////////////////////////////////////////////////////////////////////////////
/// @brief test suite: range
////////////////////////////////////////////////////////////////////////////////

function SimpleQueryAnySuite () {
  var cn = "UnitTestsCollectionAny";
  var collectionEmpty = null;
  var collectionOne = null;

  return {

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

    setUp : function () {
      var name;
      
      name = cn + "Empty";
      db._drop(name);
      collectionEmpty = db._create(name, { waitForSync : false });

      name = cn + "One";
      db._drop(name);
      collectionOne = db._create(name, { waitForSync : false });
      collectionOne.save({ age : 1 });
    },

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

    tearDown : function () {
      collectionEmpty.drop();
      collectionOne.drop();
    },

////////////////////////////////////////////////////////////////////////////////
/// @brief test: any
////////////////////////////////////////////////////////////////////////////////

    testAny : function () {
      var d = collectionEmpty.any();
      assertEqual(null, d);

      d = collectionOne.any();
      assertNotNull(d);
      assertEqual(1, d.age);
    }
  };
}

// -----------------------------------------------------------------------------
// --SECTION--                                                              main
// -----------------------------------------------------------------------------

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

jsunity.run(SimpleQueryArraySkipLimitSuite);
jsunity.run(SimpleQueryAllSkipLimitSuite);
jsunity.run(SimpleQueryByExampleSuite);
jsunity.run(SimpleQueryRangeSuite);
jsunity.run(SimpleQueryUniqueRangeSuite);
jsunity.run(SimpleQueryAnySuite);

return jsunity.done();

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