public void ChainWithModifierToStringExact_FindsResourceOnExactValue()
 {
     var q = new Query().For("Patient").Where("given=nancy").Where("provider:Organization.name:exact=Health Level Seven International");
     var results = index.Search(q);
     //results = index.Search("Patient", "given=\"ned\"&provider:Organization.name:exact=\"Health Level Seven International\"");
     Assert.IsTrue(results.Count == 1);
 }

 public void ChainWithModifierToString_FindsResourceOnFirstPartOfValue()
 {
     var q = new Query().For("Patient").Where("given=nancy").Where("provider:Organization.name=health");
     var results = index.Search(q);
     //results = index.Search("Patient", "given=\"nancy\"&provider:Organization.name:partial=\"health\"");
     Assert.IsTrue(results.Count == 1);
 }

 public void ChainWithModifierToString_DoesNotFindResourceOnWronglySpelledValue()
 {
     var q = new Query().For("Patient").Where("given=nancy").Where("provider:Organization.name=healthy");
     var results = index.Search(q);
     //results = index.Search("Patient", "given=\"ned\"&provider:Organization.name:partial=\"healthy\"");
     Assert.IsTrue(results.Count == 0);
 }

 public void String_FindsResourceOnExactValue()
 {
     // Default search = partial from the start
     var q = new Query().For("Patient").Where("family=Mckinney");
     var r = index.Search(q);
     Assert.IsTrue(r.Has("Patient/76"));
 }

 public void String_IgnoresAndReportsInvalidOperator()
 {
     var q = new Query().For("Patient").Where("family=>Mckinney");
     var r = index.Search(q);
     Assert.IsTrue(r.HasIssues);
     Assert.AreEqual(String.Empty, r.UsedCriteria);
     Assert.IsTrue(r.Count > 0); //All Patient resources should be found.
 }

 public void RetrieveCriteria()
 {
     var q = new Query()
         .For("Patient").Where("name:exact=ewout").OrderBy("birthDate", SortOrder.Descending)
         .SummaryOnly().Include("Patient.managingOrganization")
         .LimitTo(20);
     Assert.AreEqual(1, q.Criteria.Count());
     Assert.AreEqual("ewout", Query.ExtractParamValue(q.Criteria.First()));
 }

 internal static Query Load (String resource, IEnumerable<Tuple<String, String>> parameters)
 {
     Query result = new Query();
     result.ResourceType = resource;
     foreach (var p in parameters)
     {
         result.AddParameter(p.Item1, p.Item2);
     };
     return result;
 }

        public void ReapplySingleParam()
        {
            var q = new Query()
                .Custom("mySearch").OrderBy("adsfadf").OrderBy("q", SortOrder.Descending)
                    .LimitTo(10).LimitTo(20).Custom("miSearch").SummaryOnly().SummaryOnly(false);

            Assert.AreEqual("miSearch", q.QueryName);
            Assert.IsFalse(q.Summary);

            var o = q.Sort;
            Assert.AreEqual("q", o.Item1);
            Assert.AreEqual(SortOrder.Descending, o.Item2);

            Assert.AreEqual(20, q.Count);

            Assert.IsFalse(q.Summary);
        }   

        public void ManipulateParameters()
        {
            var q = new Query();

            q.AddParameter("testX", "someVal");
            q.AddParameter("testX", "someVal2");
            q.AddParameter("testXY", "someVal3");

            var vals = q.GetValues("testX");
            Assert.AreEqual(2, vals.Count());
            Assert.AreEqual("someVal", vals.First());
            Assert.AreEqual("someVal2", vals.Skip(1).First());
            Assert.AreEqual("someVal3", q.GetSingleValue("testXY"));

            q.RemoveParameter("testXY");
            Assert.IsNull(q.GetSingleValue("testXY"));
            Assert.AreEqual(2, q.GetValues("testX").Count());
        }

        public static RestUrl Search(this RestUrl url, Query q)
        {
            // The ResourceType is the only parameter that needs special handling,
            // since the others are all "normal" parameters. Just make sure we don't
            // include the special _type parameter on the REST url
            var result = url.Search(q.ResourceType);

            foreach (var par in q.Parameter)
            {
                var paramKey = Query.ExtractParamKey(par);
                if (paramKey != Query.SEARCH_PARAM_TYPE)
                {
                    result.AddParam(Query.ExtractParamKey(par),
                                Query.ExtractParamValue(par));
                }
            }

            return result;
        }

        public void TestProperties()
        {
            var q = new Query();

            q.QueryName = "special";
            q.ResourceType = "Patient";
            q.Count = 31;
            q.Summary = true;
            q.Sort = Tuple.Create("sorted", SortOrder.Descending);
            q.Includes.Add("Patient.name");
            q.Includes.Add("Observation.subject");

            Assert.AreEqual("special", q.QueryName);
            Assert.AreEqual("Patient", q.ResourceType);
            Assert.AreEqual(31, q.Count);
            Assert.AreEqual(true, q.Summary);
            Assert.AreEqual(Tuple.Create("sorted", SortOrder.Descending), q.Sort);
            Assert.AreEqual(2, q.Includes.Count);
            Assert.AreEqual("Patient.name", q.Includes.First());
            Assert.AreEqual("Observation.subject", q.Includes.Skip(1).First());

            q.QueryName = "special2";
            q.ResourceType = "Observation";
            q.Count = 32;
            q.Summary = false;
            q.Sort = Tuple.Create("sorted2", SortOrder.Ascending);
            q.Includes.Add("Patient.name2");
            q.Includes.Remove("Patient.name");
            q.Includes.Add("Observation.subject2");

            Assert.AreEqual("special2", q.QueryName);
            Assert.AreEqual("Observation", q.ResourceType);
            Assert.AreEqual(32, q.Count);
            Assert.AreEqual(false, q.Summary);
            Assert.AreEqual(Tuple.Create("sorted2", SortOrder.Ascending), q.Sort);
            Assert.AreEqual(3, q.Includes.Count);
            Assert.IsTrue(q.Includes.Contains("Patient.name2"));
            Assert.IsFalse(q.Includes.Contains("Patient.name"));
            Assert.IsTrue(q.Includes.Contains("Observation.subject"));
            Assert.IsTrue(q.Includes.Contains("Observation.subject2"));
        }

        public void ManageSearchResult()
        {
            var q = new Query()
                .For("Patient").Where("name:exact=ewout").OrderBy("birthDate", SortOrder.Descending)
                .SummaryOnly().Include("Patient.managingOrganization")
                .LimitTo(20);

            var x = FhirSerializer.SerializeResourceToXml(q);
            Console.WriteLine(x);

            Assert.AreEqual("Patient", q.ResourceType);
            
            var p = q.Parameter.SingleWithName("name");
            Assert.AreEqual("name:exact", Query.ExtractParamKey(p));
            Assert.AreEqual("ewout", Query.ExtractParamValue(p));

            var o = q.Sort;
            Assert.AreEqual("birthDate", o.Item1);
            Assert.AreEqual(SortOrder.Descending, o.Item2);

            Assert.IsTrue(q.Summary);
            Assert.IsTrue(q.Includes.Contains("Patient.managingOrganization"));
            Assert.AreEqual(20,q.Count);
        }

 public void ChainWithModifierToToken_FindsResourceOnTokenCode()
 {
     // THE  WORKS
     var q = new Query().For("Condition").Where("subject.identifier=12345");
     var results = index.Search(q);
     //results = index.Search("Condition", "subject.identifier=12345");
     Assert.IsTrue(results.Count >= 2);
     Assert.IsTrue(results.Has("Condition/example"));
     Assert.IsTrue(results.Has("Condition/example2"));
 }

 public void StringExact_DoesNotFindResourceOnValueWithDifferentCapitalization()
 {
     var q = new Query().For("Patient").Where("family:exact=McKinney");
     var r = index.Search(q);
     Assert.IsFalse(r.Has("Patient/76"));
 }

 public void StringExact_FindsResourceOnExactValue()
 {
     var q = new Query().For("Patient").Where("family:exact=Mckinney");
     var r = index.Search(q);
     Assert.IsTrue(r.Has("Patient/76"));
 }

 public void String_DoesNotFindResourceOnMiddlePartOfValue()
 {
     var q = new Query().For("Patient").Where("family=kinne");
     var r = index.Search(q);
     Assert.IsFalse(r.Has("Patient/76"));
 }

        public void TripleChainToString_FindsResourceOnExactValue()
        {
            var q = new Query().For("CarePlan").Where("condition.asserter.provider.name=Gastroenterology");
            var results = index.Search(q);

            Assert.AreEqual(1, results.Count);
            //TODO: Resulting query is OK, but there is no matching data in the examples. Find an example that does return a result.
        }

 public void String_FindsResourceOnTwoExactValues()
 {
     var q = new Query().For("Patient").Where("given=nancy").Where("family=nuclear");
     var results = index.Search(q);
     //results = index.Search("Patient", "given=\"nancy\"&family=\"nuclear\"");
     Assert.IsTrue(results.Count == 1);
 }

 public void Reference_FindsResourceOnValidId()
 {
     var q = new Query().For("Patient").Where("given=ned").Where("provider=Organization/hl7");
     var results = index.Search(q);
     Assert.AreEqual(1, results.Count);
 }

 public void Token_FindsResourceOnNamespaceAndCode()
 {
     var q = new Query().For("Practitioner").Where("gender=urn:oid:2.16.840.1.113883.4.642.1.24|F");
     var results = index.Search(q);
     Assert.IsTrue(results.Has("Practitioner/f005"));
 }