Update diagnose.test.js

Author: Beakerboy

test/diagnose.test.js

@@ -2372,3 +2372,11 @@ test('Diagnose Skillion Issue', async() => {
   expect(global.fetch.mock.calls[0][0]).toBe(urlBase + 'way/398056904/full');
   expect(global.fetch.mock.calls[1][0]).toBe(urlBase + 'map?bbox=125.7416897,39.0269534,125.7420811,39.0272423');
 });
+
+window.printError = printError;
+
+var errors = [];
+
+function printError(txt) {
+  errors.push[txt];
+}