Refactor framework coverage tests (#146210)

Refactor framework coverage tests in order to reduce testing logic in test.dart and allow for later implementing package:test onto the existing framework coverage tests

Part of https://github.com/flutter/flutter/issues/145482

dev/bots/suite_runners/run_framework_coverage_tests.dart

@@ -0,0 +1,33 @@
+// Copyright 2014 The Flutter Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+import 'dart:io' show File;
+
+import 'package:path/path.dart' as path;
+
+import '../utils.dart';
+
+Future<void> frameworkCoverageRunner() async {
+  final File coverageFile = File(path.join(flutterRoot, 'packages', 'flutter', 'coverage', 'lcov.info'));
+  if (!coverageFile.existsSync()) {
+    foundError(<String>[
+      '${red}Coverage file not found.$reset',
+      'Expected to find: $cyan${coverageFile.absolute.path}$reset',
+      'This file is normally obtained by running `${green}flutter update-packages$reset`.',
+    ]);
+    return;
+  }
+  coverageFile.deleteSync();
+  await runFlutterTest(path.join(flutterRoot, 'packages', 'flutter'),
+    options: const <String>['--coverage'],
+  );
+  if (!coverageFile.existsSync()) {
+    foundError(<String>[
+      '${red}Coverage file not found.$reset',
+      'Expected to find: $cyan${coverageFile.absolute.path}$reset',
+      'This file should have been generated by the `${green}flutter test --coverage$reset` script, but was not.',
+    ]);
+    return;
+  }
+}

dev/bots/test.dart

@@ -64,6 +64,7 @@ import 'suite_runners/run_analyze_tests.dart';
 import 'suite_runners/run_customer_testing_tests.dart';
 import 'suite_runners/run_docs_tests.dart';
 import 'suite_runners/run_flutter_packages_tests.dart';
+import 'suite_runners/run_framework_coverage_tests.dart';
 import 'suite_runners/run_fuchsia_precache.dart';
 import 'suite_runners/run_realm_checker_tests.dart';
 import 'suite_runners/run_skp_generator_tests.dart';
@@ -139,7 +140,7 @@ Future<void> main(List<String> args) async {
     await selectShard(<String, ShardRunner>{
       'add_to_app_life_cycle_tests': () => addToAppLifeCycleRunner(flutterRoot),
       'build_tests': _runBuildTests,
-      'framework_coverage': _runFrameworkCoverage,
+      'framework_coverage': frameworkCoverageRunner,
       'framework_tests': _runFrameworkTests,
       'tool_tests': _runToolTests,
       // web_tool_tests is also used by HHH: https://dart.googlesource.com/recipes/+/refs/heads/master/recipes/dart/flutter_engine.py
@@ -988,31 +989,6 @@ Future<void> _runFrameworkTests() async {
   });
 }
 
-Future<void> _runFrameworkCoverage() async {
-  final File coverageFile = File(path.join(flutterRoot, 'packages', 'flutter', 'coverage', 'lcov.info'));
-  if (!coverageFile.existsSync()) {
-    foundError(<String>[
-      '${red}Coverage file not found.$reset',
-      'Expected to find: $cyan${coverageFile.absolute.path}$reset',
-      'This file is normally obtained by running `${green}flutter update-packages$reset`.',
-    ]);
-    return;
-  }
-  coverageFile.deleteSync();
-  await runFlutterTest(path.join(flutterRoot, 'packages', 'flutter'),
-    options: const <String>['--coverage'],
-  );
-  if (!coverageFile.existsSync()) {
-    foundError(<String>[
-      '${red}Coverage file not found.$reset',
-      'Expected to find: $cyan${coverageFile.absolute.path}$reset',
-      'This file should have been generated by the `${green}flutter test --coverage$reset` script, but was not.',
-    ]);
-    return;
-  }
-}
-
-
 /// This will force the next run of the Flutter tool (if it uses the provided
 /// environment) to have asserts enabled, by setting an environment variable.
 void adjustEnvironmentToEnableFlutterAsserts(Map<String, String> environment) {

dev/bots/utils.dart

@@ -29,7 +29,6 @@ typedef ShardRunner = Future<void> Function();
 /// appropriate error message.
 typedef OutputChecker = String? Function(CommandResult);
 
-
 const Duration _quietTimeout = Duration(minutes: 10); // how long the output should be hidden between calls to printProgress before just being verbose
 
 // If running from LUCI set to False.