public void CanAggregateIntoImmutableDictionary()
{
ImmutableDictionary <int, string> stringRepByValue = from i in INT_SOURCE
where Distinct
group i.ToString() by ToImmutableDictionary(i) into dict
select dict;
stringRepByValue.GetType().Should().Be <ImmutableDictionary <int, string> >();
stringRepByValue.Should().Contain(new Dictionary <int, string> {
{ 1, "1" },
{ 9, "9" },
{ 4, "4" },
{ 5, "5" },
{ 0, "0" },
{ 8, "8" },
{ 7, "7" }
});
ImmutableDictionary <int, string> stringRepByValue2 = from i in INT_SOURCE
where Distinct
group i by ToImmutableDictionary(i, i.ToString()) into dict
select dict;
stringRepByValue2.GetType().Should().Be <ImmutableDictionary <int, string> >();
stringRepByValue2.Should().Contain(new Dictionary <int, string> {
{ 1, "1" },
{ 9, "9" },
{ 4, "4" },
{ 5, "5" },
{ 0, "0" },
{ 8, "8" },
{ 7, "7" }
});
}
public void WriteImmutableDictionaryOfInt32()
{
ImmutableDictionary <int, int> value = ImmutableDictionary.CreateRange(new Dictionary <int, int>
{
{ 1, 1 },
{ 2, 2 },
{ 3, 3 }
});
const string expected = @"{""1"":1,""2"":2,""3"":3}";
JsonSerializerOptions options = new JsonSerializerOptions();
options.SetupExtensions();
string actual = JsonSerializer.Serialize(value, value.GetType(), options);
Assert.Equal(expected, actual);
}
