refactor log_handler_test.dart

Author: andrewkolos

pkgs/unified_analytics/test/log_handler_test.dart

@@ -13,52 +13,20 @@ import 'package:unified_analytics/src/utils.dart';
 import 'package:unified_analytics/unified_analytics.dart';
 
 void main() {
-  late FakeAnalytics analytics;
-  late Directory homeDirectory;
-  late MemoryFileSystem fs;
-  late File logFile;
-
   final testEvent = Event.hotReloadTime(timeMs: 10);
 
-  setUp(() {
-    fs = MemoryFileSystem.test(style: FileSystemStyle.posix);
-    homeDirectory = fs.directory('home');
-    logFile = fs.file(p.join(
-      homeDirectory.path,
-      kDartToolDirectoryName,
-      kLogFileName,
-    ));
-
-    // Create the initialization analytics instance to onboard the tool
-    final initializationAnalytics = Analytics.fake(
-      tool: DashTool.flutterTool,
-      homeDirectory: homeDirectory,
-      dartVersion: 'dartVersion',
-      fs: fs,
-      platform: DevicePlatform.macos,
-    );
-    initializationAnalytics.clientShowedMessage();
-
-    // This instance is free to send events since the instance above
-    // has confirmed that the client has shown the message
-    analytics = Analytics.fake(
-      tool: DashTool.flutterTool,
-      homeDirectory: homeDirectory,
-      dartVersion: 'dartVersion',
-      fs: fs,
-      platform: DevicePlatform.macos,
-    );
-  });
-
   test('Ensure that log file is created', () {
+    final (fs, logFile, analytics) = _setUpFakeAnalytics();
     expect(logFile.existsSync(), true);
   });
 
   test('LogFileStats is null before events are sent', () {
+    final (fs, logFile, analytics) = _setUpFakeAnalytics();
     expect(analytics.logFileStats(), isNull);
   });
 
   test('LogFileStats returns valid response after sent events', () async {
+    final (fs, logFile, analytics) = _setUpFakeAnalytics();
     final countOfEventsToSend = 10;
 
     for (var i = 0; i < countOfEventsToSend; i++) {
@@ -71,6 +39,8 @@ void main() {
   });
 
   test('The only record in the log file is malformed', () async {
+    final (fs, logFile, analytics) = _setUpFakeAnalytics();
+
     // Write invalid json for the only log record
     logFile.writeAsStringSync('{{\n');
 
@@ -93,6 +63,8 @@ void main() {
   });
 
   test('The first record is malformed, but rest are valid', () async {
+    final (fs, logFile, analytics) = _setUpFakeAnalytics();
+
     // Write invalid json for the only log record
     logFile.writeAsStringSync('{{\n');
 
@@ -109,6 +81,8 @@ void main() {
   });
 
   test('Several records are malformed', () async {
+    final (fs, logFile, analytics) = _setUpFakeAnalytics();
+
     final countOfMalformedRecords = 4;
     for (var i = 0; i < countOfMalformedRecords; i++) {
       final currentContents = logFile.readAsStringSync();
@@ -136,6 +110,8 @@ void main() {
   });
 
   test('Valid json but invalid keys', () {
+    final (fs, logFile, analytics) = _setUpFakeAnalytics();
+
     // The second line here is missing the "events" top level
     // key which should cause an error for that record only
     //
@@ -157,6 +133,8 @@ void main() {
   });
 
   test('Malformed record gets phased out after several events', () async {
+    final (fs, logFile, analytics) = _setUpFakeAnalytics();
+
     // Write invalid json for the only log record
     logFile.writeAsStringSync('{{\n');
 
@@ -192,6 +170,8 @@ void main() {
   });
 
   test('Catching cast errors for each log record silently', () async {
+    final (fs, logFile, analytics) = _setUpFakeAnalytics();
+
     // Write a json array to the log file which will cause
     // a cast error when parsing each line
     logFile.writeAsStringSync('[{}, 1, 2, 3]\n');
@@ -269,3 +249,35 @@ void main() {
     expect(newString, testString);
   });
 }
+
+(FileSystem fs, File logFile, FakeAnalytics analytics) _setUpFakeAnalytics() {
+  final fs = MemoryFileSystem.test(style: FileSystemStyle.posix);
+  final homeDirectory = fs.directory('home');
+  final logFile = fs.file(p.join(
+    homeDirectory.path,
+    kDartToolDirectoryName,
+    kLogFileName,
+  ));
+
+  // Create the initialization analytics instance to onboard the tool
+  final initializationAnalytics = Analytics.fake(
+    tool: DashTool.flutterTool,
+    homeDirectory: homeDirectory,
+    dartVersion: 'dartVersion',
+    fs: fs,
+    platform: DevicePlatform.macos,
+  );
+  initializationAnalytics.clientShowedMessage();
+
+  // This instance is free to send events since the instance above
+  // has confirmed that the client has shown the message
+  final analytics = Analytics.fake(
+    tool: DashTool.flutterTool,
+    homeDirectory: homeDirectory,
+    dartVersion: 'dartVersion',
+    fs: fs,
+    platform: DevicePlatform.macos,
+  );
+
+  return (fs, logFile, analytics);
+}