diff --git a/src/legacy/ui/public/new_platform/new_platform.karma_mock.js b/src/legacy/ui/public/new_platform/new_platform.karma_mock.js
new file mode 100644
index 0000000000000..c66f4aa5bc2b3
--- /dev/null
+++ b/src/legacy/ui/public/new_platform/new_platform.karma_mock.js
@@ -0,0 +1,48 @@
+/*
+ * Licensed to Elasticsearch B.V. under one or more contributor
+ * license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright
+ * ownership. Elasticsearch B.V. licenses this file to you under
+ * the Apache License, Version 2.0 (the "License"); you may
+ * not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *    http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+import sinon from 'sinon';
+
+export const npSetup = {
+  core: {},
+  plugins: {
+    data: {
+      expressions: {
+        registerFunction: sinon.fake(),
+        registerRenderer: sinon.fake(),
+        registerType: sinon.fake(),
+      },
+    },
+  },
+};
+
+export const npStart = {
+  core: {},
+  plugins: {
+    data: {},
+  },
+};
+
+export function __setup__(coreSetup) {
+  npSetup.core = coreSetup;
+}
+
+export function __start__(coreStart) {
+  npStart.core = coreStart;
+}