public void StringTest(int collectionSize)
{
var kvps = new KeyValuePair <string, string> [collectionSize];
Random rand1 = new Random();
for (int i = 0; i < collectionSize; i++)
{
kvps[i] = new KeyValuePair <string, string>($"key{i}", Guid.NewGuid().ToString() + Guid.NewGuid() + Guid.NewGuid());
}
string value1 = kvps[rand1.Next(0, collectionSize - 1)].Value;
string value2 = kvps[rand1.Next(0, collectionSize - 1)].Value;
string queryString = $"value={value1}%2B{value2}";
IQueryable <KeyValuePair <string, string> > queryable = kvps.AsQueryable();
var sw = Stopwatch.StartNew();
var expression = ExpressionBuilder.BuildExpression <KeyValuePair <string, string> >(queryString);
queryable.FirstOrDefault(expression).Should().NotBeNull().And
.Should().BeAnyOf(kvps.Where(kvp => kvp.Value == value1 || kvp.Value == value2));
queryable.Where(expression).Should().NotBeNullOrEmpty().And
.Contain(kvps.Where(kvp => kvp.Value == value1 || kvp.Value == value2));
queryable.Any(expression).Should().BeTrue();
queryable.All(expression).Should().BeFalse();
queryable.Count(expression).Should().Be(queryable.Count(q => q.Value == value1 || q.Value == value2));
sw.Stop();
}
public void DateTimeTest(int collectionSize)
{
var kvps = new KeyValuePair <string, DateTime> [collectionSize];
int day = 1;
int month = 1;
int year = 2016;
for (int i = 0; i < collectionSize; i++)
{
kvps[i] = new KeyValuePair <string, DateTime>($"key{i}", new DateTime(year, month, day++));
if (day > 28)
{
day = 1;
month++;
}
if (month <= 12)
{
continue;
}
month = 1;
year++;
}
Random rand = new Random();
DateTime value1 = kvps[rand.Next(0, collectionSize - 1)].Value;
DateTime value2 = kvps[rand.Next(0, collectionSize - 1)].Value;
string queryString = $"value={value1}%2B{value2}";
IQueryable <KeyValuePair <string, DateTime> > queryable = kvps.AsQueryable();
var sw = Stopwatch.StartNew();
var expression = ExpressionBuilder.BuildExpression <KeyValuePair <string, DateTime> >(queryString);
queryable.FirstOrDefault(expression).Should().NotBeNull().And
.Should().BeAnyOf(kvps.Where(kvp => kvp.Value == value1 || kvp.Value == value2));
queryable.Where(expression).Should().NotBeNullOrEmpty().And
.Contain(kvps.Where(kvp => kvp.Value == value1 || kvp.Value == value2));
queryable.Any(expression).Should().BeTrue();
queryable.All(expression).Should().BeFalse();
queryable.Count(expression).Should().Be(queryable.Count(q => q.Value == value1 || q.Value == value2));
sw.Stop();
}
