Improve Codename One iOS test bootstrap logging

Author: shai-almog

scripts/ios/tests/HelloCodenameOneUITests.swift.tmpl

@@ -16,6 +16,7 @@ final class HelloCodenameOneUITests: XCTestCase {
 
     override func setUpWithError() throws {
         continueAfterFailure = false
+        print("CN1SS:INFO:setup_begin test_class=HelloCodenameOneUITests")
         let env = ProcessInfo.processInfo.environment
 
         if let bundleID = env["CN1_AUT_BUNDLE_ID"], !bundleID.isEmpty {
@@ -37,7 +38,11 @@ final class HelloCodenameOneUITests: XCTestCase {
         } else {
             outputDirectory = tmp.appendingPathComponent("cn1screens", isDirectory: true)
         }
-        try FileManager.default.createDirectory(at: outputDirectory, withIntermediateDirectories: true)
+        do {
+            try FileManager.default.createDirectory(at: outputDirectory, withIntermediateDirectories: true)
+        } catch {
+            print("CN1SS:WARN:output_directory_create_failed path=\(outputDirectory.path) error=\(error)")
+        }
 
         print("CN1SS:INFO:ui_test_target_bundle_id=\(targetBundleIdentifier ?? "(scheme-default)")")
         print("CN1SS:INFO:ui_test_launch_arguments=\(app.launchArguments.joined(separator: " "))")
@@ -276,7 +281,7 @@ final class HelloCodenameOneUITests: XCTestCase {
         if let explicit = targetBundleIdentifier, !explicit.isEmpty {
             return explicit
         }
-        if let bundle: String = dynamicAppValue("bundleID") {
+        if let bundle: String = codenameApplicationValue("bundleID", for: app) {
             if !bundle.isEmpty {
                 return bundle
             }
@@ -371,6 +376,29 @@ final class HelloCodenameOneUITests: XCTestCase {
     }
 }
 
+private func codenameApplicationValue<T>(_ selectorName: String, for application: XCUIApplication) -> T? {
+    let selector = NSSelectorFromString(selectorName)
+    guard application.responds(to: selector) else {
+        return nil
+    }
+    guard let unmanaged = application.perform(selector) else {
+        return nil
+    }
+    let value = unmanaged.takeUnretainedValue()
+    switch value {
+    case let typed as T:
+        return typed
+    case let number as NSNumber where T.self == Bool.self:
+        return (number.boolValue as? T)
+    case let string as NSString where T.self == String.self:
+        return (string as String) as? T
+    case let url as NSURL where T.self == URL.self:
+        return (url as URL) as? T
+    default:
+        return nil
+    }
+}
+
 private final class CodenameOneMainInvoker {
     static let shared = CodenameOneMainInvoker()
 
@@ -393,7 +421,9 @@ private final class CodenameOneMainInvoker {
             return
         }
 
+        print("CN1SS:INFO:codenameone_main_invoking bundle=\(bundleIdentifier)")
         context.invoke()
+        print("CN1SS:INFO:codenameone_main_invocation_complete bundle=\(bundleIdentifier)")
 
         queue.sync {
             invokedBundles.insert(bundleIdentifier)
@@ -407,11 +437,13 @@ private final class CodenameOneMainInvoker {
             print("CN1SS:WARN:codenameone_main_skipped reason=container_missing bundle=\(bundleIdentifier)")
             return nil
         }
+        print("CN1SS:INFO:codenameone_main_container bundle=\(bundleIdentifier) path=\(container)")
 
         guard let executable = readExecutableName(appContainer: container) else {
             print("CN1SS:WARN:codenameone_main_skipped reason=executable_missing bundle=\(bundleIdentifier)")
             return nil
         }
+        print("CN1SS:INFO:codenameone_main_executable bundle=\(bundleIdentifier) name=\(executable)")
 
         let binaryPath = (container as NSString).appendingPathComponent(executable)
         guard let handle = dlopen(binaryPath, RTLD_NOW | RTLD_GLOBAL) else {
@@ -422,6 +454,7 @@ private final class CodenameOneMainInvoker {
             }
             return nil
         }
+        print("CN1SS:INFO:codenameone_main_dlopen_success bundle=\(bundleIdentifier) binary=\(binaryPath)")
 
         guard let initPtr = dlsym(handle, "initConstantPool") else {
             print("CN1SS:WARN:codenameone_main_skipped reason=missing_initConstantPool bundle=\(bundleIdentifier)")
@@ -447,11 +480,11 @@ private final class CodenameOneMainInvoker {
     }
 
     private func locateAppContainer(app: XCUIApplication, bundleIdentifier: String) -> String? {
-        if let bundleURL: URL = dynamicAppValue("bundleURL"), !bundleURL.path.isEmpty {
+        if let bundleURL: URL = codenameApplicationValue("bundleURL", for: app), !bundleURL.path.isEmpty {
             return bundleURL.path
         }
 
-        if let bundlePath: String = dynamicAppValue("bundlePath"), !bundlePath.isEmpty {
+        if let bundlePath: String = codenameApplicationValue("bundlePath", for: app), !bundlePath.isEmpty {
             return bundlePath
         }
 
@@ -522,29 +555,6 @@ private final class CodenameOneMainInvoker {
         return output
     }
 
-    private func dynamicAppValue<T>(_ selectorName: String) -> T? {
-        let selector = NSSelectorFromString(selectorName)
-        guard app.responds(to: selector) else {
-            return nil
-        }
-        guard let unmanaged = app.perform(selector) else {
-            return nil
-        }
-        let value = unmanaged.takeUnretainedValue()
-        switch value {
-        case let typed as T:
-            return typed
-        case let number as NSNumber where T.self == Bool.self:
-            return (number.boolValue as? T)
-        case let string as NSString where T.self == String.self:
-            return (string as String) as? T
-        case let url as NSURL where T.self == URL.self:
-            return (url as URL) as? T
-        default:
-            return nil
-        }
-    }
-
     private struct InvocationContext {
         typealias InitConstantPoolFn = @convention(c) () -> Void
         typealias GetThreadLocalDataFn = @convention(c) () -> UnsafeMutableRawPointer?