fix failing tests

Author: aditi-khare-mongoDB

lib/schema/int32.js

@@ -194,6 +194,56 @@ SchemaInt32.prototype.cast = function(value) {
   }
 };
 
+/*!
+ * ignore
+ */
+
+SchemaInt32.$conditionalHandlers = {
+  ...SchemaType.prototype.$conditionalHandlers,
+  $gt: handleSingle,
+  $gte: handleSingle,
+  $lt: handleSingle,
+  $lte: handleSingle
+};
+
+/*!
+ * ignore
+ */
+
+function handleSingle(val, context) {
+  return this.castForQuery(null, val, context);
+}
+
+/**
+ * Casts contents for queries.
+ *
+ * @param {String} $conditional
+ * @param {any} val
+ * @api private
+ */
+
+SchemaInt32.prototype.castForQuery = function($conditional, val, context) {
+  let handler;
+  if ($conditional != null) {
+    handler = SchemaInt32.$conditionalHandlers[$conditional];
+
+    if (handler) {
+      return handler.call(this, val);
+    }
+
+    return this.applySetters(null, val, context);
+  }
+
+  try {
+    return this.applySetters(val, context);
+  } catch (err) {
+    if (err instanceof CastError && err.path === this.path && this.$fullPath != null) {
+      err.path = this.$fullPath;
+    }
+    throw err;
+  }
+};
+
 
 /*!
  * Module exports.