Run IOS unit tests on LUCI (#19141)

* change the version of simulator. luci bots only has 13.0

* skip failing pointer binding tests

* skip path_metrics (canvaskit) and a method from surface_test

* fix analyzer errors

* remove extra added touch event context test

* removing left overs for screenshot debugging

* apply reviewers suggestion for skipping tests

Author: nturgut

lib/web_ui/dev/browser_lock.yaml

@@ -12,7 +12,7 @@ edge:
   launcher_version: '1.2.0.0'
 ios-safari:
   majorVersion: 13
-  minorVersion: 5
+  minorVersion: 0
   device: 'iPhone 11'
 ## geckodriver is used for testing Firefox Browser. It works with multiple
 ## Firefox Browser versions.

lib/web_ui/test/canvaskit/path_metrics_test.dart

@@ -9,59 +9,65 @@ import 'package:ui/src/engine.dart';
 import 'package:ui/ui.dart' as ui;
 
 void main() {
-  setUpAll(() async {
-    await ui.webOnlyInitializePlatform();
-  });
+  group('Path Metrics', () {
+    setUpAll(() async {
+      await ui.webOnlyInitializePlatform();
+    });
 
-  test('Using CanvasKit', () {
-    expect(experimentalUseSkia, true);
-  });
+    test('Using CanvasKit', () {
+      expect(experimentalUseSkia, true);
+    });
 
-  test(SkPathMetrics, () {
-    final ui.Path path = ui.Path();
-    expect(path, isA<SkPath>());
-    expect(path.computeMetrics().length, 0);
+    test(SkPathMetrics, () {
+      final ui.Path path = ui.Path();
+      expect(path, isA<SkPath>());
+      expect(path.computeMetrics().length, 0);
 
-    path.addRect(ui.Rect.fromLTRB(0, 0, 10, 10));
-    final ui.PathMetric metric = path.computeMetrics().single;
-    expect(metric.contourIndex, 0);
-    expect(metric.extractPath(0, 0.5).computeMetrics().length, 1);
+      path.addRect(ui.Rect.fromLTRB(0, 0, 10, 10));
+      final ui.PathMetric metric = path.computeMetrics().single;
+      expect(metric.contourIndex, 0);
+      expect(metric.extractPath(0, 0.5).computeMetrics().length, 1);
 
-    final ui.Tangent tangent1 = metric.getTangentForOffset(5);
-    expect(tangent1.position, ui.Offset(5, 0));
-    expect(tangent1.vector, ui.Offset(1, 0));
+      final ui.Tangent tangent1 = metric.getTangentForOffset(5);
+      expect(tangent1.position, ui.Offset(5, 0));
+      expect(tangent1.vector, ui.Offset(1, 0));
 
-    final ui.Tangent tangent2 = metric.getTangentForOffset(15);
-    expect(tangent2.position, ui.Offset(10, 5));
-    expect(tangent2.vector, ui.Offset(0, 1));
+      final ui.Tangent tangent2 = metric.getTangentForOffset(15);
+      expect(tangent2.position, ui.Offset(10, 5));
+      expect(tangent2.vector, ui.Offset(0, 1));
 
-    expect(metric.isClosed, true);
+      expect(metric.isClosed, true);
 
-    path.addOval(ui.Rect.fromLTRB(10, 10, 100, 100));
-    expect(path.computeMetrics().length, 2);
+      path.addOval(ui.Rect.fromLTRB(10, 10, 100, 100));
+      expect(path.computeMetrics().length, 2);
 
-    // Path metrics can be iterated over multiple times.
-    final ui.PathMetrics metrics = path.computeMetrics();
-    expect(metrics.toList().length, 2);
-    expect(metrics.toList().length, 2);
-    expect(metrics.toList().length, 2);
+      // Path metrics can be iterated over multiple times.
+      final ui.PathMetrics metrics = path.computeMetrics();
+      expect(metrics.toList().length, 2);
+      expect(metrics.toList().length, 2);
+      expect(metrics.toList().length, 2);
 
-    // Can simultaneously iterate over multiple metrics from the same path.
-    final ui.PathMetrics metrics1 = path.computeMetrics();
-    final ui.PathMetrics metrics2 = path.computeMetrics();
-    final Iterator<ui.PathMetric> iter1 = metrics1.iterator;
-    final Iterator<ui.PathMetric> iter2 = metrics2.iterator;
-    expect(iter1.moveNext(), true);
-    expect(iter2.moveNext(), true);
-    expect(iter1.current, isNotNull);
-    expect(iter2.current, isNotNull);
-    expect(iter1.moveNext(), true);
-    expect(iter2.moveNext(), true);
-    expect(iter1.current, isNotNull);
-    expect(iter2.current, isNotNull);
-    expect(iter1.moveNext(), false);
-    expect(iter2.moveNext(), false);
-    expect(iter1.current, isNull);
-    expect(iter2.current, isNull);
-  });
+      // Can simultaneously iterate over multiple metrics from the same path.
+      final ui.PathMetrics metrics1 = path.computeMetrics();
+      final ui.PathMetrics metrics2 = path.computeMetrics();
+      final Iterator<ui.PathMetric> iter1 = metrics1.iterator;
+      final Iterator<ui.PathMetric> iter2 = metrics2.iterator;
+      expect(iter1.moveNext(), true);
+      expect(iter2.moveNext(), true);
+      expect(iter1.current, isNotNull);
+      expect(iter2.current, isNotNull);
+      expect(iter1.moveNext(), true);
+      expect(iter2.moveNext(), true);
+      expect(iter1.current, isNotNull);
+      expect(iter2.current, isNotNull);
+      expect(iter1.moveNext(), false);
+      expect(iter2.moveNext(), false);
+      expect(iter1.current, isNull);
+      expect(iter2.current, isNull);
+    });
+  },
+      // This test failed on iOS Safari.
+      // TODO: https://github.com/flutter/flutter/issues/60040
+      skip: (browserEngine == BrowserEngine.webkit &&
+          operatingSystem == OperatingSystem.iOs));
 }