Add a constants json validator test

Signed-off-by: Maxwell Henderson <mxwhenderson@gmail.com>
Change-Id: I8cf210b8a4d6962a8a65bdcc56f0c29896f4c2ea
diff --git a/y2024/constants/BUILD b/y2024/constants/BUILD
index 1e8faa4..73e92f0 100644
--- a/y2024/constants/BUILD
+++ b/y2024/constants/BUILD
@@ -76,3 +76,16 @@
         "//frc971/constants:constants_sender_lib",
     ],
 )
+
+cc_test(
+    name = "constants_validator_test",
+    srcs = ["constants_validator_test.cc"],
+    data = [":constants.json"],
+    visibility = ["//visibility:public"],
+    deps = [
+        ":constants_list_fbs",
+        "//aos:json_to_flatbuffer",
+        "//aos/testing:googletest",
+        "@com_github_google_glog//:glog",
+    ],
+)