[DO NOT MERGE] Add support for Selector.instance on iOS

.github/workflows/patrol-prepare.yaml

@@ -124,7 +124,6 @@ jobs:
       fail-fast: false
       matrix:
         include:
-          - version: '3.3.0'
           - channel: stable
 
     defaults:

.github/workflows/test-ios-simulator.yaml

@@ -79,8 +79,14 @@ jobs:
       - run: patrol test -t integration_test/service_wifi_test.dart
         if: ${{ false }} # Not on Simulator
 
-      - run: patrol test -t integration_test/webview_all_test.dart
-        if: ${{ false }} # Temporarily broken
+      - run: patrol test -t webview_hackernews_test.dart
+        if: ${{ false }} # https://github.com/leancodepl/patrol/issues/1139
+      - run: patrol test -t webview_leancode_test.dart
+        if: ${{ false }} # https://github.com/leancodepl/patrol/issues/1139
+      - run: patrol test -t webview_login_test.dart
+        if: ${{ false }} # https://github.com/leancodepl/patrol/issues/1139
+      - run: patrol test -t webview_stackoverflow_test.dart
+        if: ${{ false }} # https://github.com/leancodepl/patrol/issues/1139
 
       - name: Set job status
         id: set_status

packages/patrol/example/integration_test/common.dart

@@ -6,8 +6,8 @@ export 'package:example/main.dart';
 export 'package:flutter_test/flutter_test.dart';
 export 'package:patrol/patrol.dart';
 
-final _patrolTesterConfig = PatrolTesterConfig();
-final _nativeAutomatorConfig = NativeAutomatorConfig();
+final globalPatrolTesterConfig = PatrolTesterConfig();
+final globalNativeAutomatorConfig = NativeAutomatorConfig();
 
 Future<void> createApp(PatrolTester $) async {
   await setUpTimezone();
@@ -17,12 +17,14 @@ Future<void> createApp(PatrolTester $) async {
 void patrol(
   String description,
   Future<void> Function(PatrolTester) callback, {
+  PatrolTesterConfig? patrolTesterConfig,
+  NativeAutomatorConfig? nativeAutomatorConfig,
   bool? skip,
 }) {
   patrolTest(
     description,
-    config: _patrolTesterConfig,
-    nativeAutomatorConfig: _nativeAutomatorConfig,
+    config: patrolTesterConfig ?? globalPatrolTesterConfig,
+    nativeAutomatorConfig: nativeAutomatorConfig ?? globalNativeAutomatorConfig,
     nativeAutomation: true,
     skip: skip,
     callback,

packages/patrol/example/integration_test/smokes/graceful_fail_test.dart

@@ -0,0 +1,61 @@
+import '../common.dart';
+
+final _nativeAutomatorConfig = globalNativeAutomatorConfig.copyWith(
+  findTimeout: Duration(seconds: 3), // shorter timeout for this test
+);
+
+void main() {
+  patrol(
+    'native tap() fails gracefully',
+    nativeAutomatorConfig: _nativeAutomatorConfig,
+    ($) async {
+      await createApp($);
+
+      await expectLater(
+        () => $.native.tap(Selector(text: 'This does not exist, boom!')),
+        throwsA(
+          isA<PatrolActionException>().having(
+            (err) => err.message,
+            'message',
+            contains('This does not exist, boom!'),
+          ),
+        ),
+      );
+    },
+  );
+
+  patrol(
+    'native enterText() fails gracefully',
+    nativeAutomatorConfig: _nativeAutomatorConfig,
+    ($) async {
+      await createApp($);
+
+      await expectLater(
+        () => $.native.enterText(
+          Selector(text: 'This does not exist, boom!'),
+          text: 'some text',
+        ),
+        throwsA(
+          isA<PatrolActionException>().having(
+            (err) => err.message,
+            'message',
+            contains('This does not exist, boom!'),
+          ),
+        ),
+      );
+    },
+  );
+
+  patrol(
+    'native enterTextByIndex() fails gracefully',
+    nativeAutomatorConfig: _nativeAutomatorConfig,
+    ($) async {
+      await createApp($);
+
+      await expectLater(
+        () => $.native.enterTextByIndex('some text', index: 100),
+        throwsA(isA<PatrolActionException>()),
+      );
+    },
+  );
+}

packages/patrol/example/integration_test/webview_hackernews_test.dart

@@ -4,10 +4,11 @@ void main() {
   patrol('interacts with the orange website in a webview', ($) async {
     await createApp($);
 
-    await $('Open webview (Hacker News').scrollTo().tap();
+    await $('Open webview (Hacker News)').scrollTo().tap();
 
     await $.native.tap(Selector(text: 'login'));
-    await $.native.enterTextByIndex('[email protected]', index: 0);
+    await $.native.enterTextByIndex('[email protected]', index: 0);
     await $.native.enterTextByIndex('ny4ncat', index: 1);
+    await $.native.tap(Selector(text: 'login'));
   });
 }

packages/patrol/example/integration_test/webview_leancode_test.dart

@@ -3,13 +3,18 @@ import 'common.dart';
 void main() async {
   patrol('interacts with the LeanCode website in a webview', ($) async {
     await createApp($);
-
     await $('Open webview (LeanCode)').scrollTo().tap();
-
     await $.native.tap(Selector(text: 'Accept cookies'));
+
+    // open dropdown
     await $.native.tap(Selector(text: 'What do you do in IT?', instance: 1));
+
+    // select option in dropdown
     await $.native.tap(Selector(text: 'Developer'));
-    await $.native.tap(Selector(text: '1 item selected'));
+
+    // close dropdown
+    await $.native.tap(Selector(text: 'What do you do in IT?', instance: 1));
+
     await $.native.enterTextByIndex('[email protected]', index: 0);
   });
 }

packages/patrol/ios/Classes/AutomatorServer/Automator.swift

@@ -1,5 +1,7 @@
 import XCTest
 
+let MICROSECONDS_IN_SECOND: UInt32 = 1_000_000
+
 class Automator {
   private lazy var device: XCUIDevice = {
     return XCUIDevice.shared
@@ -54,57 +56,70 @@ class Automator {
 
   // MARK: General UI interaction
 
-  func tap(on text: String, inApp bundleId: String) async throws {
-    try await runAction("tapping on view with text \(format: text) in app \(bundleId)") {
+  func tap(onText text: String, inApp bundleId: String, atIndex index: Int) async throws {
+    let view = "view with text \(format: text) in app \(bundleId) at index \(index)"
+
+    try await runAction("tapping on \(view)") {
       let app = try self.getApp(withBundleId: bundleId)
-      let element = app.descendants(matching: .any)[text]
+      let elementQuery = app.descendants(matching: .any).matching(identifier: text)
 
-      Logger.shared.i("waiting for existence of view with text \(format: text)")
-      let exists = element.waitForExistence(timeout: self.timeout)
-      guard exists else {
-        throw PatrolError.viewNotExists("view with text \(format: text) in app \(format: bundleId)")
+      Logger.shared.i("waiting for existence of \(view)")
+      guard let element = self.waitForView(query: elementQuery, index: index) else {
+        throw PatrolError.viewNotExists(view)
       }
-      Logger.shared.i("found view with text \(format: text), will tap on it")
 
-      element.firstMatch.forceTap()
+      Logger.shared.i("found \(view), will tap on it")
+      element.tap()
     }
   }
 
-  func doubleTap(on text: String, inApp bundleId: String) async throws {
-    try await runAction("double tapping on text \(format: text) in app \(bundleId)") {
+  func doubleTap(onText text: String, inApp bundleId: String, atIndex index: Int) async throws {
+    let view = "view with text \(format: text) in app \(bundleId) at index \(index)"
+
+    try await runAction("double tapping on \(view)") {
       let app = try self.getApp(withBundleId: bundleId)
-      let element = app.descendants(matching: .any)[text]
+      let elementQuery = app.descendants(matching: .any).matching(identifier: text)
 
-      let exists = element.waitForExistence(timeout: self.timeout)
-      guard exists else {
-        throw PatrolError.viewNotExists("view with text \(format: text) in app \(format: bundleId)")
+      Logger.shared.i("waiting for existence of \(view)")
+      guard let element = self.waitForView(query: elementQuery, index: index) else {
+        throw PatrolError.viewNotExists(view)
       }
 
-      element.firstMatch.forceTap()
+      Logger.shared.i("found \(view), will double tap on it")
+      element.doubleTap()
     }
   }
 
-  func enterText(_ data: String, by text: String, inApp bundleId: String) async throws {
-    try await runAction(
-      "entering text \(format: data) into text field with text \(text) in app \(bundleId)"
-    ) {
+  func enterText(_ data: String, byText text: String, inApp bundleId: String, atIndex index: Int)
+    async throws
+  {
+    let view = "text field with ident/label \(format: text) in app \(bundleId) at index \(index)"
+
+    try await runAction("entering text \(format: data) into \(view)") {
       let app = try self.getApp(withBundleId: bundleId)
 
-      guard
-        let element = self.waitForAnyElement(
-          elements: [app.textFields[text], app.secureTextFields[text]],
-          timeout: self.timeout
-        )
-      else {
-        throw PatrolError.viewNotExists(
-          "text field with text \(format: text) in app \(format: bundleId)")
+      // elementType must be specified as integer
+      // See:
+      // * https://developer.apple.com/documentation/xctest/xcuielementtype/xcuielementtypetextfield
+      // * https://developer.apple.com/documentation/xctest/xcuielementtype/xcuielementtypesecuretextfield
+      let textFieldPredicate = NSPredicate(format: "elementType == 49")
+      let secureTextFieldPredicate = NSPredicate(format: "elementType == 50")
+      let predicate = NSCompoundPredicate(
+        orPredicateWithSubpredicates: [textFieldPredicate, secureTextFieldPredicate]
+      )
+
+      let elementQuery = app.descendants(matching: .any).matching(predicate).matching(
+        identifier: text)
+      guard let element = self.waitForView(query: elementQuery, index: index) else {
+        throw PatrolError.viewNotExists(view)
       }
 
-      element.firstMatch.typeText(data)
+      element.tap()
+      element.typeText(data)
     }
   }
 
-  func enterText(_ data: String, by index: Int, inApp bundleId: String) async throws {
+  func enterText(_ data: String, byIndex index: Int, inApp bundleId: String) async throws {
     try await runAction("entering text \(format: data) by index \(index) in app \(bundleId)") {
       let app = try self.getApp(withBundleId: bundleId)
 
@@ -118,18 +133,12 @@ class Automator {
         orPredicateWithSubpredicates: [textFieldPredicate, secureTextFieldPredicate]
       )
 
-      let textFieldsQuery = app.descendants(matching: .any).matching(predicate)
-      guard
-        let element = self.waitFor(
-          query: textFieldsQuery,
-          byIndex: index,
-          timeout: self.timeout
-        )
-      else {
+      let elementQuery = app.descendants(matching: .any).matching(predicate)
+      guard let element = self.waitForView(query: elementQuery, index: index) else {
         throw PatrolError.viewNotExists("text field at index \(index) in app \(bundleId)")
       }
 
-      element.forceTap()
+      element.tap()
       element.typeText(data)
     }
   }
@@ -506,7 +515,8 @@ class Automator {
     }
   }
 
-  // MARK: Private stuff
+  // MARK: Private common methods
+
   private func isSimulator() -> Bool {
     #if targetEnvironment(simulator)
       return true
@@ -570,9 +580,10 @@ class Automator {
     start.press(forDuration: 0.1, thenDragTo: end)
   }
 
-  private func runControlCenterAction(_ log: String, block: @escaping () throws -> Void)
-    async throws
-  {
+  private func runControlCenterAction(
+    _ log: String,
+    block: @escaping () throws -> Void
+  ) async throws {
     #if targetEnvironment(simulator)
       throw PatrolError.internal("Control Center is not available on Simulator")
     #endif
@@ -622,10 +633,49 @@ class Automator {
       Logger.shared.i("\(log)...")
       let result = try block()
       Logger.shared.i("done \(log)")
-      Logger.shared.i("result: \(result)")
+      Logger.shared.i("result: \(result), type: \(type(of: result))")
       return result
     }
   }
+
+  // MARK: Custom view utilities
+
+  /// Adapted from https://stackoverflow.com/q/47880395/7009800
+  @discardableResult
+  func waitForAnyElement(elements: [XCUIElement], timeout: TimeInterval? = nil) -> XCUIElement? {
+    var foundElement: XCUIElement?
+    let startTime = Date()
+
+    while Date().timeIntervalSince(startTime) < (timeout ?? self.timeout) {
+      if let elementFound = elements.first(where: { $0.exists }) {
+        foundElement = elementFound
+        break
+      }
+      usleep(MICROSECONDS_IN_SECOND * 1)
+    }
+
+    return foundElement
+  }
+
+  /// Adapted from https://stackoverflow.com/q/47880395/7009800
+  @discardableResult
+  func waitForView(query: XCUIElementQuery, index: Int, timeout: TimeInterval? = nil)
+    -> XCUIElement?
+  {
+    var foundElement: XCUIElement?
+    let startTime = Date()
+
+    while Date().timeIntervalSince(startTime) < (timeout ?? self.timeout) {
+      let elements = query.allElementsBoundByIndex
+      if index < elements.count && elements[index].exists {
+        foundElement = elements[index]
+        break
+      }
+      usleep(MICROSECONDS_IN_SECOND * 1)
+    }
+
+    return foundElement
+  }
 }
 
 // MARK: Utilities