/// <summary>
/// LINQ and TinyLINQ agree on the average of all odd numbers of an array.
/// </summary>
/// <param name="toAverage">The array to test against.</param>
/// <returns>Whether LINQ and TinyLINQ agree.</returns>
private static Imp <bool, Func <bool> > Prop_AverageOddEqualIntArray(int[] toAverage)
=> PBTHelpers.Implies(
0 < toAverage.Where <int>(x => x % 2 == 1).Count(),
(Func <bool>)(() => Enumerable.Average(toAverage.Where <int>(x => x % 2 == 1)) ==
toAverage.Where(x => x % 2 == 1).Average()));
public decimal Average(Func <dynamic, decimal> selector)
{
return(Enumerable.Average(this, selector));
}
/// <summary>
/// LINQ and TinyLINQ agree on the average of an array.
/// </summary>
/// <param name="toCount">The array to test against.</param>
/// <returns>Whether LINQ and TinyLINQ agree.</returns>
private static Imp <bool, Func <bool> > Prop_UnspecAverageEqualIntArray(int[] toAverage)
=> PBTHelpers.Implies(
0 < toAverage.Length,
(Func <bool>)(() => Enumerable.Average(toAverage) == toAverage.Average()));
public double?Average(Func <dynamic, long?> selector)
{
return(Enumerable.Average(this, selector) ?? DynamicNullObject.Null);
}
public float?Average(Func <dynamic, float?> selector)
{
return(Enumerable.Average(this, selector) ?? DynamicNullObject.Null);
}
public DeleteTimeStatistics GetDeleteTimeStatisticsWithDbContextRecycle(bool useDbSetToSave)
{
var deleteTimeStatistics = new DeleteTimeStatistics();
var rowsDeleted = 0;
var fifteenThousandAddressWithoutId = MakeFifteenThousandAddress(generateIncrementalId: false);
var fifteenThousandAddress = MakeFifteenThousandAddress(generateIncrementalId: true);
var rowCutOffToEmptyTable = Faker.RandomNumber.Next(5, 100);
var rowCutOffToTableWithFiveThousandRows = Faker.RandomNumber.Next(6_000, 9_000);
var rowCutOffToTableWithTenThousandRows = Faker.RandomNumber.Next(11_000, 14_000);
var tenDeleteTimes = new List <long>();
var amazonAddressInsertLabMapper = new AmazonAddressInsertLabMapper();
var amazonAddressDeleteLabMapper = new AmazonAddressDeleteLabMapper();
amazonAddressInsertLabMapper.CleanAddressData();
amazonAddressInsertLabMapper.InsertAddressWithDbSetWithAddRange(fifteenThousandAddressWithoutId);
foreach (var address in fifteenThousandAddress)
{
var deleteTime = useDbSetToSave
? amazonAddressDeleteLabMapper.DeleteAddressWithDbSet(address)
: amazonAddressDeleteLabMapper.DeleteAddressWithDbContext(address);
rowsDeleted++;
if (IsRowToBeComputed(rowsDeleted, rowCutOffToEmptyTable))
{
tenDeleteTimes.Add(deleteTime);
if (tenDeleteTimes.Count == _tenRegisters)
{
var deleteTimesAverage = Enumerable.Average(tenDeleteTimes);
deleteTimeStatistics.MillisecondsAverageBasedOnTenDeletesWithEmptyTable = deleteTimesAverage;
tenDeleteTimes.Clear();
}
}
if (IsRowToBeComputed(rowsDeleted, rowCutOffToTableWithFiveThousandRows))
{
tenDeleteTimes.Add(deleteTime);
if (tenDeleteTimes.Count == _tenRegisters)
{
var deleteTimesAverage = Enumerable.Average(tenDeleteTimes);
deleteTimeStatistics.MillisecondsAverageBasedOnTenDeletesWithTableWithFiveThousandsRows = deleteTimesAverage;
tenDeleteTimes.Clear();
}
}
if (IsRowToBeComputed(rowsDeleted, rowCutOffToTableWithTenThousandRows))
{
tenDeleteTimes.Add(deleteTime);
if (tenDeleteTimes.Count == _tenRegisters)
{
var deleteTimesAverage = Enumerable.Average(tenDeleteTimes);
deleteTimeStatistics.MillisecondsAverageBasedOnTenDeletesWithTableWithTenThousandsRows = deleteTimesAverage;
tenDeleteTimes.Clear();
}
}
}
return(deleteTimeStatistics);
}
public HttpResponseMessage Get(int idEspecialidade)
{
try
{
var lstDominio = ctx.PerfilProfissional
.Include(i => i.AVALIACOES)
.Where(f => f.ID_ESPECIALIDADE == idEspecialidade)
.OrderByDescending(o => Enumerable.Average(o.AVALIACOES.Select(s => (int)s.NOTA)))
.ToList();
var lstModel = Mapper.Map <List <ProfissionalViewModel> >(lstDominio);
foreach (var model in lstModel)
{
var usuario = ctx.Usuario
.Include(i => i.PERFIS_PROFISSIONAIS)
.Include(i => i.PROPOSTAS_SERVICO.Select(s => s.SERVICO))
.First(F => F.ID_USUARIO == model.ID_USUARIO);
model.NOME = usuario.NOME;
model.DT_NASCTO = usuario.DT_NASCIMENTO;
model.DESC_ESPECIALIDADE = ctx.Especialidade.First(f => f.ID_ESPECIALIDADE == model.ID_ESPECIALIDADE).DESCRICAO;
model.BAIRRO = usuario.BAIRRO;
model.CIDADE = usuario.CIDADE;
model.ESTADO = usuario.UF.ToString();
model.DT_INCLUSAO = usuario.DT_INCLUSAO;
model.DT_ORDENACAO = usuario.DT_ORDENACAO;
model.OUTROS_PERFIS = Mapper.Map <List <ProfissionalViewModel> >(usuario.PERFIS_PROFISSIONAIS.Where(w => w.ID_ESPECIALIDADE != idEspecialidade));
model.AVALIACOES = Mapper.Map <List <AvaliacaoViewModel> >(ctx.Avaliacao.Where(w => w.ID_USUARIO == model.ID_USUARIO & w.ID_ESPECIALIDADE == model.ID_ESPECIALIDADE).ToList());
var MEUS_SERVICOS = usuario.PROPOSTAS_SERVICO.Where(w => w.ACEITA.HasValue).Where(w => w.ACEITA.Value).Select(s => s.SERVICO);
if (MEUS_SERVICOS != null)
{
model.SERVICOS.AddRange(Mapper.Map <List <ServicoViewModel_api> >(MEUS_SERVICOS));
}
if (model.AVALIACOES.Any())
{
model.MEDIA_AVALIACOES_FEITAS = model.AVALIACOES.Select(s => (int)s.NOTA).Average();
}
else
{
model.MEDIA_AVALIACOES_FEITAS = 0;
}
foreach (var item in model.OUTROS_PERFIS)
{
item.DESC_ESPECIALIDADE = ctx.Especialidade.First(f => f.ID_ESPECIALIDADE == item.ID_ESPECIALIDADE).DESCRICAO;
}
}
return(Request.CreateResponse(HttpStatusCode.OK, lstModel));
}
catch (Exception ex)
{
return(Request.CreateResponse(HttpStatusCode.BadRequest, ex.TratarMensagem()));
}
}
public static decimal Average(this IEnumerable <decimal> source) => Enumerable.Average(source);
public static decimal Average <T>(this IEnumerable <T> source, Func <T, decimal> predicate) => Enumerable.Average(source, predicate);
public static double Average(this IEnumerable <double> source) => Enumerable.Average(source);
public static double Average <T>(this IEnumerable <T> source, Func <T, double> predicate) => Enumerable.Average(source, predicate);
public double GetAverage()
{
return(Enumerable.Average(grades));
}
private static void RunAvgTest1 <T>(int count)
{
string testMethodFail = string.Format("RunAvgTest1<{0}>(count={1}): FAILED.", typeof(T), count);
if (typeof(T) == typeof(int))
{
int[] ints = new int[count];
double expectAvg = ((double)count - 1) / 2;
for (int i = 0; i < ints.Length; i++)
{
ints[i] = i;
}
double realAvg = ints.AsParallel().Average();
if (!expectAvg.Equals(realAvg))
{
Assert.True(false, string.Format(testMethodFail + " > LINQ says: {0}, Expect: {0}, real: {1}", Enumerable.Average(ints), expectAvg, realAvg));
}
}
else if (typeof(T) == typeof(int?))
{
int?[] ints = new int?[count];
double expectAvg = ((double)count - 1) / 2;
for (int i = 0; i < ints.Length; i++)
{
ints[i] = i;
}
double realAvg = ints.AsParallel().Average().Value;
if (!expectAvg.Equals(realAvg))
{
Assert.True(false, string.Format(testMethodFail + " > LINQ says: {0}, Expect: {0}, real: {1}", Enumerable.Average(ints), expectAvg, realAvg));
}
}
if (typeof(T) == typeof(long))
{
long[] longs = new long[count];
double expectAvg = ((double)count - 1) / 2;
for (int i = 0; i < longs.Length; i++)
{
longs[i] = i;
}
double realAvg = longs.AsParallel().Average();
if (!expectAvg.Equals(realAvg))
{
Assert.True(false, string.Format(testMethodFail + " > LINQ says: {0}, Expect: {0}, real: {1}", Enumerable.Average(longs), expectAvg, realAvg));
}
}
else if (typeof(T) == typeof(long?))
{
long?[] longs = new long?[count];
double expectAvg = ((double)count - 1) / 2;
for (int i = 0; i < longs.Length; i++)
{
longs[i] = i;
}
double realAvg = longs.AsParallel().Average().Value;
if (!expectAvg.Equals(realAvg))
{
Assert.True(false, string.Format(testMethodFail + " > LINQ says: {0}, Expect: {0}, real: {1}", Enumerable.Average(longs), expectAvg, realAvg));
}
}
else if (typeof(T) == typeof(float))
{
float[] floats = new float[count];
double expectAvg = ((double)count - 1) / 2;
for (int i = 0; i < floats.Length; i++)
{
floats[i] = i;
}
double realAvg = floats.AsParallel().Average();
if (!expectAvg.Equals(realAvg))
{
Assert.True(false, string.Format(testMethodFail + " > LINQ says: {0}, Expect: {0}, real: {1}", Enumerable.Average(floats), expectAvg, realAvg));
}
}
else if (typeof(T) == typeof(float?))
{
float?[] floats = new float?[count];
double expectAvg = ((double)count - 1) / 2;
for (int i = 0; i < floats.Length; i++)
{
floats[i] = i;
}
double realAvg = floats.AsParallel().Average().Value;
if (!expectAvg.Equals(realAvg))
{
Assert.True(false, string.Format(testMethodFail + " > LINQ says: {0}, Expect: {0}, real: {1}", Enumerable.Average(floats), expectAvg, realAvg));
}
}
else if (typeof(T) == typeof(double))
{
double[] doubles = new double[count];
double expectAvg = ((double)count - 1) / 2;
for (int i = 0; i < doubles.Length; i++)
{
doubles[i] = i;
}
double realAvg = doubles.AsParallel().Average();
if (!expectAvg.Equals(realAvg))
{
Assert.True(false, string.Format(testMethodFail + " > LINQ says: {0}, Expect: {0}, real: {1}", Enumerable.Average(doubles), expectAvg, realAvg));
}
}
else if (typeof(T) == typeof(double?))
{
double?[] doubles = new double?[count];
double expectAvg = ((double)count - 1) / 2;
for (int i = 0; i < doubles.Length; i++)
{
doubles[i] = i;
}
double realAvg = doubles.AsParallel().Average().Value;
if (!expectAvg.Equals(realAvg))
{
Assert.True(false, string.Format(testMethodFail + " > LINQ says: {0}, Expect: {0}, real: {1}", Enumerable.Average(doubles), expectAvg, realAvg));
}
}
else if (typeof(T) == typeof(decimal))
{
decimal[] decimals = new decimal[count];
decimal expectAvg = ((decimal)count - 1) / 2;
for (int i = 0; i < decimals.Length; i++)
{
decimals[i] = i;
}
decimal realAvg = decimals.AsParallel().Average();
if (!expectAvg.Equals(realAvg))
{
Assert.True(false, string.Format(testMethodFail + " > LINQ says: {0}, Expect: {0}, real: {1}", Enumerable.Average(decimals), expectAvg, realAvg));
}
}
else if (typeof(T) == typeof(decimal?))
{
decimal?[] decimals = new decimal?[count];
decimal expectAvg = ((decimal)count - 1) / 2;
for (int i = 0; i < decimals.Length; i++)
{
decimals[i] = i;
}
decimal realAvg = decimals.AsParallel().Average().Value;
if (!expectAvg.Equals(realAvg))
{
Assert.True(false, string.Format(testMethodFail + " > LINQ says: {0}, Expect: {0}, real: {1}", Enumerable.Average(decimals), expectAvg, realAvg));
}
}
}
/// <summary>
/// LINQ and TinyLINQ agree on the average of all odd squares
/// of an array.
/// </summary>
/// <param name="toAverage">The array to test against.</param>
/// <returns>Whether LINQ and TinyLINQ agree.</returns>
private static Imp <bool, Func <bool> > Prop_AverageOddSquaresEqualIntArray(int[] toAverage)
=> PBTHelpers.Implies(
0 < Enumerable.Count(toAverage.Select <int, int>(x => x * x).Where <int>(x => x % 2 == 1)),
(Func <bool>)(() => Enumerable.Average(toAverage.Select <int, int>(x => x * x).Where <int>(x => x % 2 == 1)) ==
toAverage.Select(x => x * x).Where(x => x % 2 == 1).Average()));
public void AverageUInt()
{
var source = Enumerable.Range(0, 4500).ToArray();
Assert.AreEqual(Enumerable.Average(source), ExtraEnumerable.Average(source.Select(x => (uint)x).ToArray()));
}
private static MethodInfo CreateAvgInt()
{
return(GetMethod(x => Enumerable.Average <object>(x, _ => (int)_)));
}
public void AverageNullableInt()
{
var source = Enumerable.Range(0, 4500).Select(x => (int?)x).Concat(new int?[] { null, null, null }).Shuffle().ToArray();
Assert.AreEqual(Enumerable.Average(source), ExtraEnumerable.Average(source));
}
private static MethodInfo CreateAvgNLong()
{
return(GetMethod(x => Enumerable.Average <object>(x, _ => (long?)_)));
}
public static void Init()
{
_map = new Dictionary <MethodInfo, MethodInfo>();
_enumerableMethods = new HashSet <MethodInfo>();
//Some dummy objects of specific types. They help us to denote a specific overload of Queryable and Enumerable methods,
// when we call 'Add'. The 'Add' method accepts two expressions as parameters, and it extracts the matching Queryable/Enumerable
// methods from these expressions, and add the pair to the Map dictionary.
// We use dummy classes TSource, TKey, etc - defined below.
IQueryable <TSource> qS = null;
IOrderedQueryable <TSource> qSord = null;
IEnumerable <TSource> eS = null;
IOrderedEnumerable <TSource> eSord = null;
TSource objS = null;
TKey objK = null;
TKeyComparer objKComp = null;
TSourceComparer objSComp = null;
TElement objEl = null;
//Aggregate
Add(() => Queryable.Aggregate(qS, (s, ss) => objS), () => Enumerable.Aggregate(eS, (s, ss) => objS));
Add(() => Queryable.Aggregate(qS, objEl, (el, s) => objEl), () => Enumerable.Aggregate(eS, objEl, (el, s) => objEl));
Add(() => Queryable.Aggregate(qS, objEl, (el, s) => objEl, x => 0), () => Enumerable.Aggregate(eS, objEl, (el, s) => objEl, x => 0));
//All, Any
Add(() => Queryable.All(qS, s => true), () => Enumerable.All(eS, s => true));
Add(() => Queryable.Any(qS), () => Enumerable.Any(eS));
Add(() => Queryable.Any(qS, s => true), () => Enumerable.Any(eS, s => true));
// Average
Add(() => Queryable.Average(QueryOf <decimal>()), () => Enumerable.Average(QueryOf <decimal>()));
Add(() => Queryable.Average(QueryOf <decimal?>()), () => Enumerable.Average(QueryOf <decimal?>()));
Add(() => Queryable.Average(QueryOf <double>()), () => Enumerable.Average(QueryOf <double>()));
Add(() => Queryable.Average(QueryOf <double?>()), () => Enumerable.Average(QueryOf <double?>()));
Add(() => Queryable.Average(QueryOf <float>()), () => Enumerable.Average(QueryOf <float>()));
Add(() => Queryable.Average(QueryOf <float?>()), () => Enumerable.Average(QueryOf <float?>()));
Add(() => Queryable.Average(QueryOf <int>()), () => Enumerable.Average(QueryOf <int>()));
Add(() => Queryable.Average(QueryOf <int?>()), () => Enumerable.Average(QueryOf <int?>()));
Add(() => Queryable.Average(QueryOf <long>()), () => Enumerable.Average(QueryOf <long>()));
Add(() => Queryable.Average(QueryOf <long?>()), () => Enumerable.Average(QueryOf <long?>()));
Add(() => Queryable.Average(qS, x => (decimal)0), () => Enumerable.Average(eS, x => (decimal)0));
Add(() => Queryable.Average(qS, x => (decimal?)0), () => Enumerable.Average(eS, x => (decimal?)0));
Add(() => Queryable.Average(qS, x => (double)0), () => Enumerable.Average(eS, x => (double)0));
Add(() => Queryable.Average(qS, x => (double?)0), () => Enumerable.Average(eS, x => (double?)0));
Add(() => Queryable.Average(qS, x => (float)0), () => Enumerable.Average(eS, x => (float)0));
Add(() => Queryable.Average(qS, x => (float?)0), () => Enumerable.Average(eS, x => (float?)0));
Add(() => Queryable.Average(qS, x => (int)0), () => Enumerable.Average(eS, x => (int)0));
Add(() => Queryable.Average(qS, x => (int?)0), () => Enumerable.Average(eS, x => (int?)0));
Add(() => Queryable.Average(qS, x => (long)0), () => Enumerable.Average(eS, x => (long)0));
Add(() => Queryable.Average(qS, x => (long?)0), () => Enumerable.Average(eS, x => (long?)0));
//Cast
Add(() => Queryable.Cast <TElement>(qS), () => Enumerable.Cast <TElement>(eS));
// Concat
Add(() => Queryable.Concat(qS, eS), () => Enumerable.Concat(eS, eS));
//Contains
Add(() => Queryable.Contains(qS, objS), () => Enumerable.Contains(eS, objS));
Add(() => Queryable.Contains(qS, objS, objSComp), () => Enumerable.Contains(eS, objS, objSComp));
//Count
Add(() => Queryable.Count(qS), () => Enumerable.Count(eS));
Add(() => Queryable.Count(qS, s => true), () => Enumerable.Count(eS, s => true));
//DefaultIfEmpty
Add(() => Queryable.DefaultIfEmpty(qS), () => Enumerable.DefaultIfEmpty(eS));
Add(() => Queryable.DefaultIfEmpty(qS, objS), () => Enumerable.DefaultIfEmpty(eS, objS));
//Distinct
Add(() => Queryable.Distinct(qS), () => Enumerable.Distinct(eS));
Add(() => Queryable.Distinct(qS, objSComp), () => Enumerable.Distinct(eS, objSComp));
// ElementAt
Add(() => Queryable.ElementAt(qS, 0), () => Enumerable.ElementAt(eS, 0));
Add(() => Queryable.ElementAtOrDefault(qS, 0), () => Enumerable.ElementAtOrDefault(eS, 0));
// Except
Add(() => Queryable.Except(qS, qS), () => Enumerable.Except(eS, eS));
Add(() => Queryable.Except(qS, qS, objSComp), () => Enumerable.Except(eS, eS, objSComp));
// First
Add(() => Queryable.First(qS), () => Enumerable.First(eS));
Add(() => Queryable.First(qS, s => true), () => Enumerable.First(eS, s => true));
Add(() => Queryable.FirstOrDefault(qS), () => Enumerable.FirstOrDefault(eS));
Add(() => Queryable.FirstOrDefault(qS, s => true), () => Enumerable.FirstOrDefault(eS, s => true));
// GroupBy
Add(() => Queryable.GroupBy(qS, s => objK), () => Enumerable.GroupBy(eS, s => objK));
Add(() => Queryable.GroupBy(qS, s => objK, (s, ss) => 0), () => Enumerable.GroupBy(eS, s => objK, (s, ss) => 0));
Add(() => Queryable.GroupBy(qS, s => objK, (s) => 0), () => Enumerable.GroupBy(eS, s => objK, (s) => 0));
Add(() => Queryable.GroupBy(qS, s => objS, objSComp), () => Enumerable.GroupBy(eS, s => s, objSComp));
Add(() => Queryable.GroupBy(qS, s => objS, (s, ss) => 0, objSComp), () => Enumerable.GroupBy(eS, s => objS, (s, ss) => 0, objSComp));
Add(() => Queryable.GroupBy(qS, s => objS, s => objK, (s, ss) => 0), () => Enumerable.GroupBy(eS, s => objS, s => objK, (s, ss) => 0));
Add(() => Queryable.GroupBy(qS, s => objK, s => objEl, objKComp), () => Enumerable.GroupBy(eS, s => objK, s => objEl, objKComp));
Add(() => Queryable.GroupBy(qS, s => objS, s => objK, (s, ss) => 0, objSComp), () => Enumerable.GroupBy(eS, s => objS, s => objK, (s, ss) => 0, objSComp));
//GroupJoin
IEnumerable <TSource2> eInner = null;
Add(() => Queryable.GroupJoin(qS, eInner, s => objK, s => objK, (s, ss) => objEl),
() => Enumerable.GroupJoin(eS, eInner, s => objK, s => objK, (s, ss) => objEl));
Add(() => Queryable.GroupJoin(qS, eInner, s => objK, s => objK, (s, ss) => objEl, objKComp),
() => Enumerable.GroupJoin(eS, eInner, s => objK, s => objK, (s, ss) => objEl, objKComp));
//Intersect
Add(() => Queryable.Intersect(qS, eS), () => Enumerable.Intersect(eS, eS));
Add(() => Queryable.Intersect(qS, eS, objSComp), () => Enumerable.Intersect(eS, eS, objSComp));
// Join
Add(() => Queryable.Join(qS, eInner, s => objK, s => objK, (s, ss) => objEl), () => Enumerable.Join(eS, eInner, s => objK, s => objK, (s, ss) => objEl));
Add(() => Queryable.Join(qS, eInner, s => objK, s => objK, (s, ss) => objEl, objKComp), () => Enumerable.Join(eS, eInner, s => objK, s => objK, (s, ss) => objEl, objKComp));
// Last
Add(() => Queryable.Last(qS), () => Enumerable.Last(eS));
Add(() => Queryable.Last(qS, s => true), () => Enumerable.Last(eS, s => true));
Add(() => Queryable.LastOrDefault(qS), () => Enumerable.LastOrDefault(eS));
Add(() => Queryable.LastOrDefault(qS, s => true), () => Enumerable.LastOrDefault(eS, s => true));
//LongCount
Add(() => Queryable.LongCount(qS), () => Enumerable.LongCount(eS));
Add(() => Queryable.LongCount(qS, s => true), () => Enumerable.LongCount(eS, s => true));
// Max, Min
Add(() => Queryable.Max(qS), () => Enumerable.Max(eS));
Add(() => Queryable.Max(qS, s => objEl), () => Enumerable.Max(eS, s => objEl)); //Enumerable has many Max versions - make sure we pick generic one here
Add(() => Queryable.Min(qS), () => Enumerable.Min(eS));
Add(() => Queryable.Min(qS, s => objEl), () => Enumerable.Min(eS, s => objEl)); //Enumerable has many Min versions - make sure we pick generic one here
// OfType
Add(() => Queryable.OfType <TElement>(qS), () => Enumerable.OfType <TElement>(eS)); //have to specify type arg explicitly
// OrderBy
Add(() => Queryable.OrderBy(qS, (s) => objK), () => Enumerable.OrderBy(eS, (s) => objK));
Add(() => Queryable.OrderBy(qS, (s) => objK, objKComp), () => Enumerable.OrderBy(eS, (s) => objK, objKComp));
Add(() => Queryable.OrderByDescending(qS, (s) => true), () => Enumerable.OrderByDescending(eS, (s) => true));
Add(() => Queryable.OrderByDescending(qS, (s) => objK, objKComp), () => Enumerable.OrderByDescending(eS, (s) => objK, objKComp));
// Reverse
Add(() => Queryable.Reverse(qS), () => Enumerable.Reverse(eS));
//Select
Add(() => Queryable.Select(qS, (s) => true), () => Enumerable.Select(eS, (s) => true));
Add(() => Queryable.Select(qS, (s, i) => true), () => Enumerable.Select(eS, (s, i) => true));
//SelectMany
IEnumerable <TElement> objListOfEl = null;
Add(() => Queryable.SelectMany(qS, (s) => objListOfEl), () => Enumerable.SelectMany(eS, (s) => objListOfEl));
Add(() => Queryable.SelectMany(qS, (s, i) => objListOfEl), () => Enumerable.SelectMany(eS, (s, i) => objListOfEl));
Add(() => Queryable.SelectMany(qS, s => objListOfEl, (s, ss) => objEl), () => Enumerable.SelectMany(eS, s => objListOfEl, (s, ss) => objEl));
Add(() => Queryable.SelectMany(qS, (s, i) => objListOfEl, (s, ss) => objEl), () => Enumerable.SelectMany(eS, (s, i) => objListOfEl, (s, ss) => objEl));
// SequenceEqual
Add(() => Queryable.SequenceEqual(qS, qS), () => Enumerable.SequenceEqual(eS, eS));
Add(() => Queryable.SequenceEqual(qS, qS, objSComp), () => Enumerable.SequenceEqual(eS, eS, objSComp));
// Single
Add(() => Queryable.Single(qS), () => Enumerable.Single(eS));
Add(() => Queryable.Single(qS, s => true), () => Enumerable.Single(eS, s => true));
Add(() => Queryable.SingleOrDefault(qS), () => Enumerable.SingleOrDefault(eS));
Add(() => Queryable.SingleOrDefault(qS, s => true), () => Enumerable.SingleOrDefault(eS, s => true));
// Skip, SkipWhile
Add(() => Queryable.Skip(qS, 1), () => Enumerable.Skip(eS, 1));
Add(() => Queryable.SkipWhile(qS, s => true), () => Enumerable.SkipWhile(eS, s => true));
Add(() => Queryable.SkipWhile(qS, (s, i) => true), () => Enumerable.SkipWhile(eS, (s, i) => true));
// Sum
Add(() => Queryable.Sum(QueryOf <decimal>()), () => Enumerable.Sum(QueryOf <decimal>()));
Add(() => Queryable.Sum(QueryOf <decimal?>()), () => Enumerable.Sum(QueryOf <decimal?>()));
Add(() => Queryable.Sum(QueryOf <double>()), () => Enumerable.Sum(QueryOf <double>()));
Add(() => Queryable.Sum(QueryOf <double?>()), () => Enumerable.Sum(QueryOf <double?>()));
Add(() => Queryable.Sum(QueryOf <float>()), () => Enumerable.Sum(QueryOf <float>()));
Add(() => Queryable.Sum(QueryOf <float?>()), () => Enumerable.Sum(QueryOf <float?>()));
Add(() => Queryable.Sum(QueryOf <int>()), () => Enumerable.Sum(QueryOf <int>()));
Add(() => Queryable.Sum(QueryOf <int?>()), () => Enumerable.Sum(QueryOf <int?>()));
Add(() => Queryable.Sum(QueryOf <long>()), () => Enumerable.Sum(QueryOf <long>()));
Add(() => Queryable.Sum(QueryOf <long?>()), () => Enumerable.Sum(QueryOf <long?>()));
Add(() => Queryable.Sum(qS, x => (decimal)0), () => Enumerable.Sum(eS, x => (decimal)0));
Add(() => Queryable.Sum(qS, x => (decimal?)0), () => Enumerable.Sum(eS, x => (decimal?)0));
Add(() => Queryable.Sum(qS, x => (double)0), () => Enumerable.Sum(eS, x => (double)0));
Add(() => Queryable.Sum(qS, x => (double?)0), () => Enumerable.Sum(eS, x => (double?)0));
Add(() => Queryable.Sum(qS, x => (float)0), () => Enumerable.Sum(eS, x => (float)0));
Add(() => Queryable.Sum(qS, x => (float?)0), () => Enumerable.Sum(eS, x => (float?)0));
Add(() => Queryable.Sum(qS, x => (int)0), () => Enumerable.Sum(eS, x => (int)0));
Add(() => Queryable.Sum(qS, x => (int?)0), () => Enumerable.Sum(eS, x => (int?)0));
Add(() => Queryable.Sum(qS, x => (long)0), () => Enumerable.Sum(eS, x => (long)0));
Add(() => Queryable.Sum(qS, x => (long?)0), () => Enumerable.Sum(eS, x => (long?)0));
// Take, TakeWhile
Add(() => Queryable.Take(qS, 1), () => Enumerable.Take(eS, 1));
Add(() => Queryable.TakeWhile(qS, s => true), () => Enumerable.TakeWhile(eS, s => true));
Add(() => Queryable.TakeWhile(qS, (s, i) => true), () => Enumerable.TakeWhile(eS, (s, i) => true));
// ThenBy, ThenByDescending
Add(() => Queryable.ThenBy(qSord, (s) => objK), () => Enumerable.ThenBy(eSord, (s) => objK));
Add(() => Queryable.ThenBy(qSord, (s) => objK, objKComp), () => Enumerable.ThenBy(eSord, (s) => objK, objKComp));
Add(() => Queryable.ThenByDescending(qSord, (s) => objK), () => Enumerable.ThenByDescending(eSord, (s) => objK));
Add(() => Queryable.ThenByDescending(qSord, (s) => objK, objKComp), () => Enumerable.ThenByDescending(eSord, (s) => objK, objKComp));
// Union
Add(() => Queryable.Union(qS, qS), () => Enumerable.Union(eS, eS));
Add(() => Queryable.Union(qS, qS, objSComp), () => Enumerable.Union(eS, eS, objSComp));
// Where
Add(() => Queryable.Where(qS, (s) => true), () => Enumerable.Where(eS, (s) => true));
Add(() => Queryable.Where(qS, (s, i) => true), () => Enumerable.Where(eS, (s, i) => true));
// Zip
Add(() => Queryable.Zip(qS, eInner, (s, ss) => objEl), () => Enumerable.Zip(eS, eInner, (s, ss) => objEl));
}
private static MethodInfo CreateAvgNFloat()
{
return(GetMethod(x => Enumerable.Average <object>(x, _ => (float?)_)));
}
/// <summary>
/// Render scope object
/// </summary>
private void RenderScope <TFacet>(TFacet facet, ReportExecutionContext context) where TFacet : XElement
{
if (facet.Name == xs_report + "repeat")
{
var bind = facet.Attribute("bind");
var subScope = this.GetBind(context, bind?.Value);
if (subScope == null && !String.IsNullOrEmpty(bind?.Value))
{
subScope = this.RenderDataset(context.Report.ConnectionString, context.Report.Datasets.FirstOrDefault(o => o.Name == bind?.Value), context.Arguments);
if (context.Dataset is IDictionary <String, IEnumerable <dynamic> > )
{
(context.Dataset as IDictionary <String, IEnumerable <dynamic> >).Add(bind.Value, (subScope as IEnumerable).OfType <dynamic>());
}
}
if (!(subScope is IEnumerable))
{
throw new InvalidOperationException("Repeat must be performed on a IEnumerable scope");
}
var subContext = new ReportExecutionContext(context, subScope, subScope as IEnumerable);
List <XElement> newChildren = new List <XElement>();
foreach (var itm in subScope as IEnumerable)
{
foreach (var cel in facet.Elements())
{
var nchild = new XElement(cel);
this.RenderScope(nchild, new ReportExecutionContext(subContext, itm));
newChildren.Add(nchild);
}
}
foreach (var itm in facet.Elements())
{
itm.Remove();
}
facet.Add(newChildren.ToArray());
//facet.Remove();
}
else if (facet.Name == xs_report + "switch")
{
bool success = false;
if (facet.Attribute("expr") == null)
{
throw new InvalidOperationException("Switch must have expr attribute");
}
object value = null;
try
{
value = this.CompileExpression($"{context.Report.Description.Name}.{context.Scope.GetType().Name}.{facet.Attribute("expr").Value}", facet.Attribute("expr").Value).DynamicInvoke(context.Scope);
}
catch
{
}
var when = facet.Attribute("when")?.Value;
switch (when)
{
case "changed":
if (context.ParentScope?.GetLast(facet.Value) == value.ToString())
{
facet.Value = ""; // no change
return;
}
break;
}
context.ParentScope?.SetLast(facet.Value, value?.ToString());
var xel = facet.Elements(xs_report + "when").FirstOrDefault();
while (xel != null)
{
ExpressionType comparator = ExpressionType.Equal;
switch (xel.Attribute("op")?.Value)
{
case "gt":
comparator = ExpressionType.GreaterThan;
break;
case "gte":
comparator = ExpressionType.GreaterThanOrEqual;
break;
case "lt":
comparator = ExpressionType.LessThan;
break;
case "lte":
comparator = ExpressionType.LessThanOrEqual;
break;
case "ne":
comparator = ExpressionType.NotEqual;
break;
}
object operand = null;
if (value != null && !MapUtil.TryConvert(xel.Attribute("value").Value, value.GetType(), out operand))
{
throw new InvalidCastException($"Can't convert {xel.Attribute("value")} to {value.GetType().Name}");
}
bool result = false;
if (value != null)
{
var parm = Expression.Parameter(value.GetType(), "p");
var expr = Expression.Lambda(Expression.MakeBinary(comparator, parm, Expression.Constant(operand)), parm).Compile();
result = (bool)expr.DynamicInvoke(value);
}
// Success an result
if (!success && result)
{
success = true;
this.RenderScope(xel, context);
xel.ReplaceWith((XNode)xel.Elements().FirstOrDefault() ?? new XText(xel.Value));
}
else
{
xel.Remove();
}
xel = facet.Elements(xs_report + "when").FirstOrDefault();
}
// Default!!!!
if (facet.Element(xs_report + "default") != null)
{
if (!success)
{
this.RenderScope(facet.Element(xs_report + "default"), context);
facet.ReplaceWith(facet.Elements().First());
}
else
{
facet.Element(xs_report + "default").Remove();
}
}
}
else if (facet.Name == xs_report + "value")
{
var when = facet.Attribute("when")?.Value;
var value = this.RenderValue(facet, context);
switch (when)
{
case "changed":
if (context.ParentScope?.GetLast(facet.Value) == value)
{
facet.Value = ""; // no change
return;
}
break;
}
context.ParentScope?.SetLast(facet.Value, value);
facet.ReplaceWith(new XText(value));
}
else if (facet.Name == xs_report + "parm")
{
facet.ReplaceWith(new XText(String.Format(facet.Attribute("format")?.Value ?? "{0}", context.RootScope.Arguments.ContainsKey(facet.Value) ? context.RootScope.Arguments[facet.Value] : null)));
}
else if (facet.Name == xs_report + "expr")
{
Delegate evaluator = this.CompileExpression($"{context.Report.Description.Name}.{context.Scope.GetType().Name}.{facet.Value}", facet.Value);
var toAtt = facet.Attribute("to-att")?.Value;
if (!String.IsNullOrEmpty(toAtt))
{
facet.Parent.Add(new XAttribute(toAtt, String.Format(facet.Attribute("format")?.Value ?? "{0}", this.RenderString(evaluator.DynamicInvoke(context.Scope), context))));
facet.Remove();
}
else if (facet.Attribute("to-html") != null)
{
var htmlData = String.Format(facet.Attribute("format")?.Value ?? "{0}", this.RenderString(evaluator.DynamicInvoke(context.Scope), context));
facet.ReplaceWith(XDocument.Parse(htmlData).Elements().FirstOrDefault());
}
else
{
facet.ReplaceWith(new XText(String.Format(facet.Attribute("format")?.Value ?? "{0}", this.RenderString(evaluator.DynamicInvoke(context.Scope), context))));
}
}
else if (facet.Name == xs_report + "aggregate")
{
String function = facet.Attribute("fn")?.Value,
bind = facet.Attribute("bind")?.Value;
Object aScope = context.Dataset as IEnumerable;
if (!String.IsNullOrEmpty(bind))
{
aScope = this.GetBind(context, bind);
}
if (aScope is IEnumerable)
{
object vValue = null;
IEnumerable <dynamic> scopeEnum = aScope as IEnumerable <dynamic>;
var body = facet.Value;
if (String.IsNullOrEmpty(body))
{
body = "!null";
}
var expr = this.CompileExpression($"{context.Report.Description.Name}.count.{facet.Value}", body);
switch (function)
{
case "sum":
vValue = Enumerable.Sum <dynamic>(scopeEnum, o => (decimal?)expr.DynamicInvoke(context.Create(o).Scope));
break;
case "count":
if (String.IsNullOrEmpty(facet.Value))
{
vValue = Enumerable.Count <dynamic>(scopeEnum);
}
else
{
vValue = Enumerable.Count <dynamic>(scopeEnum, o => (bool)expr.DynamicInvoke(context.Create(o).Scope));
}
break;
case "min":
vValue = Enumerable.Min <dynamic>(scopeEnum, o => (decimal?)expr.DynamicInvoke(context.Create(o).Scope));
break;
case "max":
vValue = Enumerable.Max <dynamic>(scopeEnum, o => (decimal?)expr.DynamicInvoke(context.Create(o).Scope));
break;
case "avg":
vValue = Enumerable.Average <dynamic>(scopeEnum, o => (decimal?)expr.DynamicInvoke(context.Create(o).Scope));
break;
}
facet.ReplaceWith(new XText(String.Format(facet.Attribute("format")?.Value ?? "{0}", this.RenderString(vValue, context))));
}
}
else
{
var elements = new List <XElement>(facet.Elements());
foreach (var cel in elements)
{
this.RenderScope(cel, context);
}
}
}
private static MethodInfo CreateAvgNDouble()
{
return(GetMethod(x => Enumerable.Average <object>(x, _ => (double?)_)));
}
public float Average(Func <dynamic, float> selector)
{
return(Enumerable.Average(this, selector));
}
private static MethodInfo CreateAvgNDecimal()
{
return(GetMethod(x => Enumerable.Average <object>(x, _ => (decimal?)_)));
}
public double Average(Func <dynamic, double> selector)
{
return(Enumerable.Average(this, selector));
}
public static float Average(this List <float> array)
{
return(Enumerable.Average(array));
}
public decimal?Average(Func <dynamic, decimal?> selector)
{
return(Enumerable.Average(this, selector) ?? DynamicNullObject.Null);
}
public void AverageInt()
{
var source = Enumerable.Range(-100, 450).ToArray();
Assert.AreEqual(Enumerable.Average(source), ExtraEnumerable.Average(source));
}
/// <summary>
/// LINQ and TinyLINQ agree on the average of all squares of an array.
/// </summary>
/// <param name="toAverage">The array to test against.</param>
/// <returns>Whether LINQ and TinyLINQ agree.</returns>
private static Imp <bool, Func <bool> > Prop_UnspecAverageSquaresEqualIntArray(int[] toAverage)
=> PBTHelpers.Implies(
0 < toAverage.Length,
(Func <bool>)(() => Enumerable.Average(toAverage.Select <int, int>(x => x * x)) == toAverage.Select(x => x * x).Average()));
GetMaxMin(IEnumerable <int> numbers)
{
return(Enumerable.Max(numbers),
Enumerable.Min(numbers),
Enumerable.Average(numbers));
}