public void Read_unknown_fieldtype()
{
// Arrange
var json = @"[
{ ""id"":0, ""name"":""field0"", ""type"":""__bogus__"" }
]" ;
var jsonUtf8 = (ReadOnlySpan <byte>)Encoding.UTF8.GetBytes(json);
var jsonReader = new Utf8JsonReader(jsonUtf8);
var objectType = (Type)null;
var options = new JsonSerializerOptions();
var converter = new LegacyCustomFieldsConverter();
// Act
jsonReader.Read();
// This try...catch is a workaround for the fact that we can't use the following code:
// Should.Throw<Exception>(() => converter.Read(ref jsonReader, objectType, options)).Message.ShouldBe("__bogus__ is an unknown field type");
// due to the following compile time error:
// Cannot use ref local 'jsonReader' inside an anonymous method, lambda expression, or query expression
try
{
var fields = converter.Read(ref jsonReader, objectType, options);
}
catch (Exception e) when(e.Message == "__bogus__ is an unknown field type")
{
// This is the expected exception
}
}
public void Read_invalid()
{
// Arrange
var json = "{ \"name\": \"this JSON is invalid for this converter\" }";
var jsonUtf8 = (ReadOnlySpan <byte>)Encoding.UTF8.GetBytes(json);
var jsonReader = new Utf8JsonReader(jsonUtf8);
var objectType = (Type)null;
var options = new JsonSerializerOptions();
var converter = new LegacyCustomFieldsConverter();
// Act
jsonReader.Read();
var result = converter.Read(ref jsonReader, objectType, options);
// Assert
result.ShouldNotBeNull();
result.Length.ShouldBe(0);
}
public void Read_multiple()
{
// Arrange
var json = @"[
{ ""id"":0, ""name"":""field0"", ""type"":""date"", ""value"":1490709300 },
{ ""id"":1, ""name"":""field1"", ""type"":""date"" },
{ ""id"":2, ""name"":""field2"", ""type"":""text"", ""value"":""abc123"" },
{ ""id"":3, ""name"":""field3"", ""type"":""text"" },
{ ""id"":4, ""name"":""field4"", ""type"":""number"", ""value"":123 },
{ ""id"":5, ""name"":""field5"", ""type"":""number"" }
]" ;
var jsonUtf8 = (ReadOnlySpan <byte>)Encoding.UTF8.GetBytes(json);
var jsonReader = new Utf8JsonReader(jsonUtf8);
var objectType = (Type)null;
var options = new JsonSerializerOptions();
var converter = new LegacyCustomFieldsConverter();
// Act
jsonReader.Read();
var result = converter.Read(ref jsonReader, objectType, options);
// Assert
result.ShouldNotBeNull();
result.ShouldBeOfType <StrongGrid.Models.Legacy.Field[]>();
var resultAsArray = (StrongGrid.Models.Legacy.Field[])result;
resultAsArray.Length.ShouldBe(6);
resultAsArray[0].Id.ShouldBe(0);
resultAsArray[0].Name.ShouldBe("field0");
resultAsArray[0].ShouldBeOfType <StrongGrid.Models.Legacy.Field <DateTime> >();
((StrongGrid.Models.Legacy.Field <DateTime>)resultAsArray[0]).Value.ShouldBe(new DateTime(2017, 3, 28, 13, 55, 0, DateTimeKind.Utc));
resultAsArray[1].Id.ShouldBe(1);
resultAsArray[1].Name.ShouldBe("field1");
resultAsArray[1].ShouldBeOfType <StrongGrid.Models.Legacy.Field <DateTime?> >();
((StrongGrid.Models.Legacy.Field <DateTime?>)resultAsArray[1]).Value.ShouldBeNull();
resultAsArray[2].Id.ShouldBe(2);
resultAsArray[2].Name.ShouldBe("field2");
resultAsArray[2].ShouldBeOfType <StrongGrid.Models.Legacy.Field <string> >();
((StrongGrid.Models.Legacy.Field <string>)resultAsArray[2]).Value.ShouldBe("abc123");
resultAsArray[3].Id.ShouldBe(3);
resultAsArray[3].Name.ShouldBe("field3");
resultAsArray[3].ShouldBeOfType <StrongGrid.Models.Legacy.Field <string> >();
((StrongGrid.Models.Legacy.Field <string>)resultAsArray[3]).Value.ShouldBeNull();
resultAsArray[4].Id.ShouldBe(4);
resultAsArray[4].Name.ShouldBe("field4");
resultAsArray[4].ShouldBeOfType <StrongGrid.Models.Legacy.Field <long> >();
((StrongGrid.Models.Legacy.Field <long>)resultAsArray[4]).Value.ShouldBe(123);
resultAsArray[5].Id.ShouldBe(5);
resultAsArray[5].Name.ShouldBe("field5");
resultAsArray[5].ShouldBeOfType <StrongGrid.Models.Legacy.Field <long?> >();
((StrongGrid.Models.Legacy.Field <long?>)resultAsArray[5]).Value.ShouldBeNull();
}