⚡️ Sped up and improved UI test

tests/ui/UITestCase.swift

@@ -0,0 +1,30 @@
+//
+//  UITestCase.swift
+//  UI Tests
+//
+//  Created by Nico Verbruggen on 15/10/2022.
+//  Copyright © 2022 Nico Verbruggen. All rights reserved.
+//
+
+import XCTest
+
+class UITestCase: XCTestCase {
+
+    /** Checks if a single element exists. */
+    public func assertExists(_ element: XCUIElement, _ timeout: TimeInterval = 0.05) {
+        XCTAssert(element.waitForExistence(timeout: timeout))
+    }
+
+    /** Checks if all elements exist. */
+    public func assertAllExist(_ elements: [XCUIElement], _ timeout: TimeInterval = 0.05) {
+        for element in elements {
+            XCTAssert(element.waitForExistence(timeout: timeout))
+        }
+    }
+
+    /** Clicks on a given element. */
+    public func click(_ element: XCUIElement) {
+        element.click()
+    }
+
+}