1 files changed, 41 insertions, 0 deletions
diff --git a/spec/frontend/__helpers__/assert_props.js b/spec/frontend/__helpers__/assert_props.js
new file mode 100644
index 00000000000..9935719580a
--- /dev/null
+++ b/spec/frontend/__helpers__/assert_props.js
@@ -0,0 +1,41 @@
+import { mount } from '@vue/test-utils';
+import { ErrorWithStack } from 'jest-util';
+
+function installConsoleHandler(method) {
+  const originalHandler = global.console[method];
+
+  global.console[method] = function throwableHandler(...args) {
+    if (args[0]?.includes('Invalid prop') || args[0]?.includes('Missing required prop')) {
+      throw new ErrorWithStack(
+        `Unexpected call of console.${method}() with:\n\n${args.join(', ')}`,
+        this[method],
+      );
+    }
+
+    originalHandler.apply(this, args);
+  };
+
+  return function restore() {
+    global.console[method] = originalHandler;
+  };
+}
+
+export function assertProps(Component, props, extraMountArgs = {}) {
+  const [restoreError, restoreWarn] = [
+    installConsoleHandler('error'),
+    installConsoleHandler('warn'),
+  ];
+  const ComponentWithoutRenderFn = {
+    ...Component,
+    render() {
+      return '';
+    },
+  };
+
+  try {
+    mount(ComponentWithoutRenderFn, { propsData: props, ...extraMountArgs });
+  } finally {
+    restoreError();
+    restoreWarn();
+  }
+}