From 4d60fa2a08523a2bdd767f1889cc2a1ac5224282 Mon Sep 17 00:00:00 2001
From: alisdair sullivan <alisdairsullivan@yahoo.ca>
Date: Wed, 13 Feb 2013 21:54:09 -0800
Subject: [PATCH] add special number tests for floats and integers that have
 different representation in erlang and json

---
 src/jsx_decoder.erl | 35 +++++++++++++++++++++++++++++++++++
 1 file changed, 35 insertions(+)

diff --git a/src/jsx_decoder.erl b/src/jsx_decoder.erl
index 2faf5db..b5c7069 100644
--- a/src/jsx_decoder.erl
+++ b/src/jsx_decoder.erl
@@ -1024,6 +1024,41 @@ done(Bin, Handler, Stack, Config) -> ?error([Bin, Handler, Stack, Config]).
 -include_lib("eunit/include/eunit.hrl").
 
 
+%% all these numbers have different representation in erlang than in javascript and
+%%  do not roundtrip like most integers/floats
+special_number_test_() ->
+    [
+        {"-0", ?_assertEqual(
+            [{integer, 0}, end_json],
+            start(<<"-0">>, {jsx, []}, [], #config{})
+        )},
+        {"-0.0", ?_assertEqual(
+            [{float, 0.0}, end_json],
+            start(<<"-0.0">>, {jsx, []}, [], #config{})
+        )},
+        {"0e0", ?_assertEqual(
+            [{float, 0.0}, end_json],
+            start(<<"0e0">>, {jsx, []}, [], #config{})
+        )},
+        {"0e4", ?_assertEqual(
+            [{float, 0.0}, end_json],
+            start(<<"0e4">>, {jsx, []}, [], #config{})
+        )},
+        {"1e0", ?_assertEqual(
+            [{float, 1.0}, end_json],
+            start(<<"1e0">>, {jsx, []}, [], #config{})
+        )},
+        {"-1e0", ?_assertEqual(
+            [{float, -1.0}, end_json],
+            start(<<"-1e0">>, {jsx, []}, [], #config{})
+        )},
+        {"1e4", ?_assertEqual(
+            [{float, 1.0e4}, end_json],
+            start(<<"1e4">>, {jsx, []}, [], #config{})
+        )}
+    ].
+
+
 xcode(Bin) -> xcode(Bin, []).
 
 xcode(Bin, Config) ->