Re-enable engine dependency proxy test. (#115511)

Re-enable engine dependency proxy test.

.ci.yaml

@@ -343,6 +343,25 @@ targets:
       - bin/**
       - .ci.yaml
 
+  - name: Linux engine_dependency_proxy_test
+    recipe: devicelab/devicelab_drone
+    bringup: true # New target: https://github.com/flutter/flutter/pull/115511
+    timeout: 60
+    properties:
+      dependencies: >-
+        [
+          {"dependency": "android_sdk", "version": "version:33v6"},
+          {"dependency": "chrome_and_driver", "version": "version:96.2"},
+          {"dependency": "open_jdk", "version": "version:11"}
+        ]
+      tags: >
+        ["devicelab", "hostonly", "linux"]
+      task_name: engine_dependency_proxy_test
+    runIf:
+      - dev/**
+      - bin/**
+      - .ci.yaml
+
   - name: Linux firebase_abstract_method_smoke_test
     recipe: firebaselab/firebaselab
     timeout: 60

dev/devicelab/bin/tasks/android_engine_dependency_proxy_test.dart → dev/devicelab/bin/tasks/engine_dependency_proxy_test.dart

@@ -2,6 +2,7 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
+import 'dart:convert';
 import 'dart:io';
 
 import 'package:flutter_devicelab/framework/apk_utils.dart';
@@ -29,7 +30,7 @@ Future<void> main() async {
       await inDirectory(path.join(flutterProject.rootPath, 'android'), () async {
         section('Insert gradle testing script');
         final File build = File(path.join(
-            flutterProject.rootPath, 'android', 'app', 'build.gradle'));
+	    flutterProject.rootPath, 'android', 'app', 'build.gradle'));
         build.writeAsStringSync(
           '''
 task printEngineMavenUrl() {
@@ -43,31 +44,38 @@ task printEngineMavenUrl() {
         );
 
         section('Checking default maven URL');
-        String mavenUrl = await eval(
+        String gradleOutput = await eval(
           gradlewExecutable,
           <String>['printEngineMavenUrl', '-q'],
         );
+        const LineSplitter splitter = LineSplitter();
+        List<String> outputLines = splitter.convert(gradleOutput);
+        String mavenUrl = outputLines.last;
+        print('Returned maven url: $mavenUrl');
 
         if (mavenUrl != 'https://storage.googleapis.com/download.flutter.io') {
           throw TaskResult.failure('Expected Android engine maven dependency URL to '
-          'resolve to https://storage.googleapis.com/download.flutter.io. Got '
-          '$mavenUrl instead');
+              'resolve to https://storage.googleapis.com/download.flutter.io. Got '
+              '$mavenUrl instead');
         }
 
         section('Checking overridden maven URL');
-        mavenUrl = await eval(
-          gradlewExecutable,
-          <String>['printEngineMavenUrl', '-q'],
-          environment: <String, String>{
-            'FLUTTER_STORAGE_BASE_URL': 'https://my.special.proxy',
-          }
-        );
+        gradleOutput = await eval(
+	    gradlewExecutable,
+	    <String>['printEngineMavenUrl','-q'],
+	    environment: <String, String>{
+              'FLUTTER_STORAGE_BASE_URL': 'https://my.special.proxy',
+            }
+	);
+        outputLines = splitter.convert(gradleOutput);
+        mavenUrl = outputLines.last;
 
         if (mavenUrl != 'https://my.special.proxy/download.flutter.io') {
-          throw TaskResult.failure('Expected overridden Android engine maven '
-          'dependency URL to resolve to proxy location '
-          'https://my.special.proxy/download.flutter.io. Got '
-          '$mavenUrl instead');
+          throw TaskResult.failure(
+	      'Expected overridden Android engine maven '
+              'dependency URL to resolve to proxy location '
+              'https://my.special.proxy/download.flutter.io. Got '
+              '$mavenUrl instead');
         }
       });
     });