improve test for kdbx4

dart_test.yaml

@@ -0,0 +1,3 @@
+tags:
+  kdbx3: {}
+  kdbx4: {}

test/icon/kdbx_customicon_test.dart

@@ -1,10 +1,9 @@
-import 'package:logging_appenders/logging_appenders.dart';
 import 'package:test/test.dart';
 
 import '../internal/test_utils.dart';
 
 void main() {
-  PrintAppender.setupLogging();
+  TestUtil.setupLogging();
   test('load custom icons from file', () async {
     final file = await TestUtil.readKdbxFile('test/icon/icontest.kdbx');
     final entry = file.body.rootGroup.entries.first;

test/internal/test_utils.dart

@@ -5,12 +5,16 @@ import 'dart:typed_data';
 import 'package:argon2_ffi_base/argon2_ffi_base.dart';
 import 'package:kdbx/kdbx.dart';
 import 'package:logging/logging.dart';
+import 'package:logging_appenders/logging_appenders.dart';
 
 final _logger = Logger('test_utils');
 
 class TestUtil {
   static final keyTitle = KdbxKey('Title');
 
+  static void setupLogging() =>
+      PrintAppender.setupLogging(stderrLevel: Level.WARNING);
+
   static KdbxFormat kdbxFormat() {
     Argon2.resolveLibraryForceDynamic = true;
     return KdbxFormat(Argon2FfiFlutter(resolveLibrary: (path) {

test/kdbx_history_test.dart

@@ -1,7 +1,6 @@
 import 'dart:async';
 
 import 'package:kdbx/kdbx.dart';
-import 'package:logging_appenders/logging_appenders.dart';
 import 'package:quiver/core.dart';
 import 'package:test/test.dart';
 
@@ -47,7 +46,7 @@ class StreamExpect<T> {
 }
 
 void main() {
-  PrintAppender.setupLogging();
+  TestUtil.setupLogging();
   group('test history for values', () {
     test('check history creation', () async {
       final file = await TestUtil.readKdbxFile('test/keepass2test.kdbx');

test/kdbx_upgrade_test.dart

@@ -1,11 +1,11 @@
+import 'package:kdbx/kdbx.dart';
 import 'package:kdbx/src/kdbx_header.dart';
-import 'package:logging_appenders/logging_appenders.dart';
 import 'package:test/test.dart';
 
 import 'internal/test_utils.dart';
 
 void main() {
-  PrintAppender.setupLogging();
+  TestUtil.setupLogging();
   group('Test upgrade from v3 to v4', () {
     final format = TestUtil.kdbxFormat();
     test('Read v3, write v4', () async {
@@ -16,6 +16,11 @@ void main() {
       final v4 = await TestUtil.saveAndRead(file);
       expect(v4.header.version, KdbxVersion.V4);
       await TestUtil.saveTestOutput('kdbx4upgrade', v4);
+    }, tags: 'kdbx3');
+    test('kdbx4 is the new default', () async {
+      final file =
+          format.create(Credentials(ProtectedValue.fromString('asdf')), 'test');
+      expect(file.header.version, KdbxVersion.V4);
     });
-  });
+  }, tags: ['kdbx4']);
 }