Failure of NST JSONTestSuite optional tests

[samoconnor]

I've modified the LazyJSON tests so that they also apply the NST JSONTestSuite to JSON.jl and JSON2.jl: https://github.com/samoconnor/LazyJSON.jl/blob/master/test/runtests.jl#L360-L362

The JSONTestSuite defines these tests as class "i" which means that parsers may choose to reject them as invalid. As it stands JSON.jl throws an error for these tests, which is an acceptable result. However, it might be better to support these inputs.

using JSON
using LazyJSON
using Test

for (name, jparse) in [("LazyJSON", x->LazyJSON.value(x; lazy=false)), ("JSON", x->JSON.parse(x))]

    @testset "$name" begin

    # See https://github.com/nst/JSONTestSuite

    @test jparse("[123.456e-789]") == Any[BigFloat("1.23456e-787")] # i_number_double_huge_neg_exp.json
    @test jparse("[0.4e00669999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999969999999006]") == Any[Inf] # i_number_huge_exp.json
    @test jparse("[-1e+9999]") == Any[BigFloat("-1.0e+9999")]
    @test jparse("[1.5e+9999]") == Any[BigFloat("1.5e+9999")]
    @test jparse("[-123123e100000]") == Any[BigFloat("-123123e100000")]
    @test jparse("[123123e100000]") == Any[BigFloat("123123e100000")]
    @test jparse("[123e-10000000]") == Any[BigFloat("123e-10000000")]
    @test jparse("{\"\\uDFAA\":0}") == Dict("\udfaa"=>0) # i_object_key_lone_2nd_surrogate.json
    @test jparse("[\"\\uDADA\"]") == Any["\udada"] # i_string_1st_surrogate_but_2nd_missing.json
    @test jparse("[\"\\uD800\\n\"]") == Any["\ud800\n"] # i_string_incomplete_surrogate_and_escape_valid.json
    @test jparse("[\"\\uDd1ea\"]") == Any["\udd1ea"] # i_string_incomplete_surrogate_pair.json
    @test jparse("[\"\\ud800\"]") == Any["\ud800"] # i_string_invalid_lonely_surrogate.json
    @test jparse("[\"\\ud800abc\"]") == Any["\ud800abc"] # i_string_invalid_surrogate.json
    @test jparse("[\"\\uDFAA\"]") == Any["\udfaa"] # i_string_lone_second_surrogate.json

    end
end

Test Summary: | Pass  Total
LazyJSON      |   14     14

Test Summary: | Error  Total
JSON          |    14     14