Add tests for the JSON decoder.

These tests will test the bej_decoder_core.c as well.

Signed-off-by: Kasun Athukorala <kasunath@google.com>
Change-Id: Ibf1c9a381a630beac09ed504dd57563160579fb0
diff --git a/test/json/dummysimple.json b/test/json/dummysimple.json
new file mode 100644
index 0000000..96503a4
--- /dev/null
+++ b/test/json/dummysimple.json
@@ -0,0 +1,15 @@
+{
+    "Id": "Dummy ID",
+    "SampleIntegerProperty": -5,
+    "SampleRealProperty": -5576.90001,
+    "SampleEnabledProperty": null,
+    "ChildArrayProperty": [
+        {
+            "AnotherBoolean": true,
+            "LinkStatus": "NoLink"
+        },
+        {
+            "LinkStatus": "LinkDown"
+        }
+    ]
+ }