decouple float tests from a specific representation in some cases; test round-trip equality only

test/003-numbers.t

@@ -21,30 +21,25 @@ good() ->
         {<<"1234567890123456789012345">>, 1234567890123456789012345},
         {<<"1310050760199">>, 1310050760199},
         {
-            <<"1234567890123456789012345.0">>,
-            1.23456789012345678e24,
-            <<"1.2345678901234568245e+24">>
+            1.23456789012345678e24
         },
         {
-            <<"1234567890123456789012345.0E3">>,
-            1.2345678901234569e27,
-            <<"1.2345678901234568502e+27">>
+            1.2345678901234569e27
         },
         {
             <<"1234567890123456789012345012">>,
-            1234567890123456789012345012,
-            <<"1234567890123456789012345012">>
+            1234567890123456789012345012
         },
         {<<"1.0">>, 1.0},
         {
             <<"0.000000000000000000000000000000000001">>,
             1.0E-36,
-            <<"9.9999999999999994104e-37">>
+            <<"1e-36">>
         },
         {<<"0.75">>, 0.75},
-        {<<"2.0123456789">>, 2.0123456789, <<"2.0123456789000000455">>},
-        {<<"2.4234324E24">>, 2.4234324E24, <<"2.4234323999999998107e+24">>},
-        {<<"-3.1416">>, -3.1416, <<"-3.1415999999999999481">>},
+        {2.0123456789},
+        {2.4234324E24},
+        {-3.1416},
         {<<"1E4">>, 10000.0, <<"10000.0">>},
         {<<"1.0E+01">>, 10.0, <<"10.0">>},
         {<<"1e1">>, 10.0, <<"10.0">>},

test/util.erl

@@ -22,6 +22,10 @@ do_encode(E, Options) ->
 error_mesg(J) ->
     lists:flatten(io_lib:format("Decoding ~p returns an error.", [J])).
 
+check_good({E}, Options) ->
+    J = jiffy:encode(E),
+    etap:is(jiffy:decode(J), E, ok_dec(J, E)),
+    etap:is(do_encode(E, Options), J, ok_enc(E, J));
 check_good({J, E}, Options) ->
     etap:is(jiffy:decode(J), E, ok_dec(J, E)),
     etap:is(do_encode(E, Options), J, ok_enc(E, J));