test(Gmail Node): Add tests for Gmail node v1 (no-changelog) (#12461)

packages/nodes-base/nodes/Google/Gmail/GenericFunctions.ts

@@ -9,6 +9,7 @@ import type {
 	ILoadOptionsFunctions,
 	INode,
 	INodeExecutionData,
+	INodePropertyOptions,
 	IPollFunctions,
 	IRequestOptions,
 	JsonObject,
@@ -637,3 +638,34 @@ export async function simplifyOutput(
 		return item;
 	});
 }
+
+/**
+ * Get all the labels to display them to user so that they can select them easily
+ */
+export async function getLabels(this: ILoadOptionsFunctions): Promise<INodePropertyOptions[]> {
+	const returnData: INodePropertyOptions[] = [];
+
+	const labels = await googleApiRequestAllItems.call(
+		this,
+		'labels',
+		'GET',
+		'/gmail/v1/users/me/labels',
+	);
+
+	for (const label of labels) {
+		returnData.push({
+			name: label.name,
+			value: label.id,
+		});
+	}
+
+	return returnData.sort((a, b) => {
+		if (a.name < b.name) {
+			return -1;
+		}
+		if (a.name > b.name) {
+			return 1;
+		}
+		return 0;
+	});
+}