1 files changed, 30 insertions, 0 deletions
diff --git a/spec/frontend/__helpers__/set_vue_error_handler.js b/spec/frontend/__helpers__/set_vue_error_handler.js
new file mode 100644
index 00000000000..d254630d1e4
--- /dev/null
+++ b/spec/frontend/__helpers__/set_vue_error_handler.js
@@ -0,0 +1,30 @@
+import Vue from 'vue';
+
+const modifiedInstances = [];
+
+export function setVueErrorHandler({ instance, handler }) {
+  if (Vue.version.startsWith('2')) {
+    // only global handlers are supported
+    const { config } = Vue;
+    config.errorHandler = handler;
+    return;
+  }
+
+  // eslint-disable-next-line no-param-reassign
+  instance.$.appContext.config.errorHandler = handler;
+  modifiedInstances.push(instance);
+}
+
+export function resetVueErrorHandler() {
+  if (Vue.version.startsWith('2')) {
+    const { config } = Vue;
+    config.errorHandler = null;
+    return;
+  }
+
+  modifiedInstances.forEach((instance) => {
+    // eslint-disable-next-line no-param-reassign
+    instance.$.appContext.config.errorHandler = null;
+  });
+  modifiedInstances.length = 0;
+}