diff --git a/lib/src/auto_size_text.dart b/lib/src/auto_size_text.dart
index ec43838..8a76333 100644
--- a/lib/src/auto_size_text.dart
+++ b/lib/src/auto_size_text.dart
@@ -387,8 +387,12 @@ class _AutoSizeTextState extends State<AutoSizeText> {
 
       wordWrapTextPainter.layout(maxWidth: constraints.maxWidth);
 
-      if (wordWrapTextPainter.didExceedMaxLines ||
-          wordWrapTextPainter.width > constraints.maxWidth) {
+      final exceeds = wordWrapTextPainter.didExceedMaxLines ||
+          wordWrapTextPainter.width > constraints.maxWidth;
+
+      wordWrapTextPainter.dispose();
+
+      if (exceeds) {
         return false;
       }
     }
@@ -405,9 +409,13 @@ class _AutoSizeTextState extends State<AutoSizeText> {
 
     textPainter.layout(maxWidth: constraints.maxWidth);
 
-    return !(textPainter.didExceedMaxLines ||
+    final fits = !(textPainter.didExceedMaxLines ||
         textPainter.height > constraints.maxHeight ||
         textPainter.width > constraints.maxWidth);
+
+    textPainter.dispose();
+
+    return fits;
   }
 
   Widget _buildText(double fontSize, TextStyle style, int? maxLines) {
diff --git a/pubspec.yaml b/pubspec.yaml
index 758bbdb..ac73481 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -13,4 +13,8 @@ dependencies:
 dev_dependencies:
   flutter_test:
     sdk: flutter
-  pedantic: '>=1.11.1 <3.0.0'
\ No newline at end of file
+  pedantic: '>=1.11.1 <3.0.0'
+
+  # Setting to any will let the SDK version define
+  # the most compatible version.
+  leak_tracker_flutter_testing: any
diff --git a/test/basic_test.dart b/test/basic_test.dart
index 5382fea..567bcdb 100644
--- a/test/basic_test.dart
+++ b/test/basic_test.dart
@@ -1,10 +1,14 @@
 import 'package:auto_size_text/auto_size_text.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter_test/flutter_test.dart';
+import 'package:leak_tracker_flutter_testing/leak_tracker_flutter_testing.dart';
 
 import 'utils.dart';
 
 void main() {
+  LeakTesting.settings = LeakTesting.settings.withIgnored(createdByTestHelpers: true);
+  LeakTesting.enable();
+
   testWidgets('Only Text', (tester) async {
     await pump(
       tester: tester,
diff --git a/test/group_builder_test.dart b/test/group_builder_test.dart
index d4bf78b..3cf1aca 100644
--- a/test/group_builder_test.dart
+++ b/test/group_builder_test.dart
@@ -1,6 +1,7 @@
 import 'package:auto_size_text/auto_size_text.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter_test/flutter_test.dart';
+import 'package:leak_tracker_flutter_testing/leak_tracker_flutter_testing.dart';
 
 import 'utils.dart';
 
@@ -45,6 +46,9 @@ void _expectFontSizes(WidgetTester tester, double fontSize) {
 }
 
 void main() {
+  LeakTesting.settings = LeakTesting.settings.withIgnored(createdByTestHelpers: true);
+  LeakTesting.enable();
+
   testWidgets('Group sync', (tester) async {
     await tester.pumpWidget(testWidget(width1: 300, width2: 300));
 
diff --git a/test/group_test.dart b/test/group_test.dart
index 762e9f2..e8d97b6 100644
--- a/test/group_test.dart
+++ b/test/group_test.dart
@@ -1,6 +1,7 @@
 import 'package:auto_size_text/auto_size_text.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter_test/flutter_test.dart';
+import 'package:leak_tracker_flutter_testing/leak_tracker_flutter_testing.dart';
 
 import 'utils.dart';
 
@@ -59,6 +60,9 @@ void _expectFontSizes(WidgetTester tester, double fontSize) {
 }
 
 void main() {
+  LeakTesting.settings = LeakTesting.settings.withIgnored(createdByTestHelpers: true);
+  LeakTesting.enable();
+
   testWidgets('Group sync', (tester) async {
     await tester.pumpWidget(GroupTest());
 
diff --git a/test/maxlines_test.dart b/test/maxlines_test.dart
index d93877b..57e56b4 100644
--- a/test/maxlines_test.dart
+++ b/test/maxlines_test.dart
@@ -1,10 +1,14 @@
 import 'package:auto_size_text/auto_size_text.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter_test/flutter_test.dart';
+import 'package:leak_tracker_flutter_testing/leak_tracker_flutter_testing.dart';
 
 import 'utils.dart';
 
 void main() {
+  LeakTesting.settings = LeakTesting.settings.withIgnored(createdByTestHelpers: true);
+  LeakTesting.enable();
+
   testWidgets('Respects maxlines', (tester) async {
     await pump(
       tester: tester,
diff --git a/test/min_max_font_size_test.dart b/test/min_max_font_size_test.dart
index ad7cea3..3e01d89 100644
--- a/test/min_max_font_size_test.dart
+++ b/test/min_max_font_size_test.dart
@@ -2,10 +2,14 @@ import 'package:auto_size_text/auto_size_text.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter/rendering.dart';
 import 'package:flutter_test/flutter_test.dart';
+import 'package:leak_tracker_flutter_testing/leak_tracker_flutter_testing.dart';
 
 import 'utils.dart';
 
 void main() {
+  LeakTesting.settings = LeakTesting.settings.withIgnored(createdByTestHelpers: true);
+  LeakTesting.enable();
+
   testWidgets('Forces valid min and max fontSize', (tester) async {
     await tester.pumpWidget(
       AutoSizeText(
diff --git a/test/overflow_replacement_test.dart b/test/overflow_replacement_test.dart
index ae754b5..06a85b1 100644
--- a/test/overflow_replacement_test.dart
+++ b/test/overflow_replacement_test.dart
@@ -1,10 +1,14 @@
 import 'package:auto_size_text/auto_size_text.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter_test/flutter_test.dart';
+import 'package:leak_tracker_flutter_testing/leak_tracker_flutter_testing.dart';
 
 import 'utils.dart';
 
 void main() {
+  LeakTesting.settings = LeakTesting.settings.withIgnored(createdByTestHelpers: true);
+  LeakTesting.enable();
+
   testWidgets('Overflow replacement visible on overflow', (tester) async {
     final text = await pumpAndGetText(
       tester: tester,
diff --git a/test/preset_font_sizes_test.dart b/test/preset_font_sizes_test.dart
index 4d6f5f0..1e5deee 100644
--- a/test/preset_font_sizes_test.dart
+++ b/test/preset_font_sizes_test.dart
@@ -1,10 +1,14 @@
 import 'package:auto_size_text/auto_size_text.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter_test/flutter_test.dart';
+import 'package:leak_tracker_flutter_testing/leak_tracker_flutter_testing.dart';
 
 import 'utils.dart';
 
 void main() {
+  LeakTesting.settings = LeakTesting.settings.withIgnored(createdByTestHelpers: true);
+  LeakTesting.enable();
+
   testWidgets('Preset font sizes', (tester) async {
     await pumpAndExpectFontSize(
       tester: tester,
diff --git a/test/text_fits_test.dart b/test/text_fits_test.dart
index a894bc9..08ef879 100644
--- a/test/text_fits_test.dart
+++ b/test/text_fits_test.dart
@@ -1,10 +1,14 @@
 import 'package:auto_size_text/auto_size_text.dart';
 import 'package:flutter/cupertino.dart';
 import 'package:flutter_test/flutter_test.dart';
+import 'package:leak_tracker_flutter_testing/leak_tracker_flutter_testing.dart';
 
 import 'utils.dart';
 
 void main() {
+  LeakTesting.settings = LeakTesting.settings.withIgnored(createdByTestHelpers: true);
+  LeakTesting.enable();
+
   testWidgets('Text fits width', (tester) async {
     await pumpAndExpectFontSize(
       tester: tester,
diff --git a/test/wrap_words_test.dart b/test/wrap_words_test.dart
index 10052ea..221c676 100644
--- a/test/wrap_words_test.dart
+++ b/test/wrap_words_test.dart
@@ -1,10 +1,14 @@
 import 'package:auto_size_text/auto_size_text.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter_test/flutter_test.dart';
+import 'package:leak_tracker_flutter_testing/leak_tracker_flutter_testing.dart';
 
 import 'utils.dart';
 
 void main() {
+  LeakTesting.settings = LeakTesting.settings.withIgnored(createdByTestHelpers: true);
+  LeakTesting.enable();
+
   testWidgets('Do not wrap words', (tester) async {
     await pumpAndExpectFontSize(
       tester: tester,