update jest to v30 (#3815)

e2e:
- needed window.close(), otherwise the objects are not destroyed
- add missing `await` in clock test
- set maxListeners for all tests

remaining todo (comes with another PR if I find the problem):
- calendar e2e is now the only test which still needs `--forceExit`

CHANGELOG.md

@@ -51,7 +51,7 @@ planned for 2025-07-01
 
 ### Updated
 
-- [core] Update dependencies including electron to v36 (#3774, #3788, #3811, #3804)
+- [core] Update dependencies including electron to v36 (#3774, #3788, #3811, #3804, #3815)
 - [core] Update package type to `commonjs`
 - [logger] Review factory code part: use `switch/case` instead of `if/else if` (#3812)
 

package.json

@@ -97,7 +97,7 @@
 		"eslint-plugin-package-json": "^0.40.1",
 		"express-basic-auth": "^1.2.1",
 		"husky": "^9.1.7",
-		"jest": "^29.7.0",
+		"jest": "^30.0.2",
 		"jsdom": "^26.1.0",
 		"lint-staged": "^16.1.2",
 		"markdownlint-cli2": "^0.18.1",

tests/e2e/helpers/global-setup.js

@@ -33,7 +33,14 @@ exports.startApplication = async (configFilename, exec) => {
 	return global.app.start();
 };
 
-exports.stopApplication = async () => {
+exports.stopApplication = async (waitTime = 1000) => {
+	if (global.window) {
+		// no closing causes jest errors and memory leaks
+		global.window.close();
+		delete global.window;
+		// give above closing some extra time to finish
+		await new Promise((resolve) => setTimeout(resolve, waitTime));
+	}
 	if (!global.app) {
 		return Promise.resolve();
 	}

tests/e2e/helpers/mock-console.js

@@ -27,3 +27,5 @@ global.console = {
 	info: jest.fn(),
 	debug: console.debug
 };
+
+process.setMaxListeners(0);

tests/e2e/modules/calendar_spec.js

@@ -119,7 +119,6 @@ describe("Calendar module", () => {
 		});
 	});
 
-	process.setMaxListeners(0);
 	for (let i = -12; i < 12; i++) {
 		describe("Recurring event per timezone", () => {
 			beforeAll(async () => {

tests/e2e/modules/clock_spec.js

@@ -40,9 +40,9 @@ describe("Clock module", () => {
 		});
 
 		it("check for discreet elements of clock", async () => {
-			let elemClock = helpers.waitForElement(".clock-hour-digital");
+			let elemClock = await helpers.waitForElement(".clock-hour-digital");
 			await expect(elemClock).not.toBeNull();
-			elemClock = helpers.waitForElement(".clock-minute-digital");
+			elemClock = await helpers.waitForElement(".clock-minute-digital");
 			await expect(elemClock).not.toBeNull();
 		});
 	});
@@ -165,7 +165,7 @@ describe("Clock module", () => {
 		});
 
 		it("should show the analog clock face", async () => {
-			const elem = helpers.waitForElement(".clock-circle");
+			const elem = await helpers.waitForElement(".clock-circle");
 			expect(elem).not.toBeNull();
 		});
 	});
@@ -177,9 +177,9 @@ describe("Clock module", () => {
 		});
 
 		it("should show the analog clock face and the date", async () => {
-			const elemClock = helpers.waitForElement(".clock-circle");
+			const elemClock = await helpers.waitForElement(".clock-circle");
 			await expect(elemClock).not.toBeNull();
-			const elemDate = helpers.waitForElement(".clock .date");
+			const elemDate = await helpers.waitForElement(".clock .date");
 			await expect(elemDate).not.toBeNull();
 		});
 	});