Add UI_TESTS_SCREEN as a disabled env var for quicker debugging. (#619)

ElementX/Sources/Other/Tests.swift

@@ -29,7 +29,7 @@ public enum Tests {
     /// Flag indicating whether the app is running the UI tests.
     static var isRunningUITests: Bool {
         #if DEBUG
-        ProcessInfo.processInfo.environment["IS_RUNNING_UI_TESTS"] == "1"
+        ProcessInfo.processInfo.environment["UI_TESTS_SCREEN"] != nil
         #else
         false
         #endif

ElementX/SupportingFiles/target.yml

@@ -25,6 +25,9 @@ schemes:
         - variable: HTTPS_PROXY
           value: 192.168.0.111:9090
           isEnabled: false
+        - variable: UI_TESTS_SCREEN
+          value: ""
+          isEnabled: false
     test:
       config: Debug
       gatherCoverageData: true

UITests/Sources/Application.swift

@@ -21,7 +21,6 @@ struct Application {
     static func launch(_ identifier: UITestsScreenIdentifier) -> XCUIApplication {
         let app = XCUIApplication()
         app.launchEnvironment = [
-            "IS_RUNNING_UI_TESTS": "1",
             "UI_TESTS_SCREEN": identifier.rawValue
         ]