diff --git a/tests/end-to-end/event/deprecations-can-be-ignored-using-attribute.phpt b/tests/end-to-end/event/deprecations-can-be-ignored-using-attribute.phpt
index 64c75fdae02..6aafadb6794 100644
--- a/tests/end-to-end/event/deprecations-can-be-ignored-using-attribute.phpt
+++ b/tests/end-to-end/event/deprecations-can-be-ignored-using-attribute.phpt
@@ -43,7 +43,7 @@ Test Passed (PHPUnit\TestFixture\Event\IgnoreDeprecationsTest::testTwo)
 Test Finished (PHPUnit\TestFixture\Event\IgnoreDeprecationsTest::testTwo)
 Test Preparation Started (PHPUnit\TestFixture\Event\IgnoreDeprecationsTest::testOneErrorGetLast)
 Test Prepared (PHPUnit\TestFixture\Event\IgnoreDeprecationsTest::testOneErrorGetLast)
-Assertion Succeeded (Constraint: is null, Value: {enable export of objects to see this value})
+Assertion Succeeded (Constraint: is null, Value: null)
 Test Triggered Test-Ignored Deprecation (PHPUnit\TestFixture\Event\IgnoreDeprecationsTest::testOneErrorGetLast)
 message
 Assertion Succeeded (Constraint: is of type array, Value: Array &0 [
@@ -56,7 +56,7 @@ Test Passed (PHPUnit\TestFixture\Event\IgnoreDeprecationsTest::testOneErrorGetLa
 Test Finished (PHPUnit\TestFixture\Event\IgnoreDeprecationsTest::testOneErrorGetLast)
 Test Preparation Started (PHPUnit\TestFixture\Event\IgnoreDeprecationsTest::testTwoErrorGetLast)
 Test Prepared (PHPUnit\TestFixture\Event\IgnoreDeprecationsTest::testTwoErrorGetLast)
-Assertion Succeeded (Constraint: is null, Value: {enable export of objects to see this value})
+Assertion Succeeded (Constraint: is null, Value: null)
 Test Triggered Deprecation (PHPUnit\TestFixture\Event\IgnoreDeprecationsTest::testTwoErrorGetLast)
 message
 Assertion Succeeded (Constraint: is of type array, Value: Array &0 [
diff --git a/tests/end-to-end/event/error-handler-can-be-disabled.phpt b/tests/end-to-end/event/error-handler-can-be-disabled.phpt
index 439c90a9dee..6b11f6fd320 100644
--- a/tests/end-to-end/event/error-handler-can-be-disabled.phpt
+++ b/tests/end-to-end/event/error-handler-can-be-disabled.phpt
@@ -49,7 +49,7 @@ Test Passed (PHPUnit\TestFixture\Event\ErrorHandlerCanBeDisabled\FooTest::testEr
 Test Finished (PHPUnit\TestFixture\Event\ErrorHandlerCanBeDisabled\FooTest::testErrorHandlerSet)
 Test Preparation Started (PHPUnit\TestFixture\Event\ErrorHandlerCanBeDisabled\FooTest::testErrorHandlerIsNotSet)
 Test Prepared (PHPUnit\TestFixture\Event\ErrorHandlerCanBeDisabled\FooTest::testErrorHandlerIsNotSet)
-Assertion Succeeded (Constraint: is null, Value: {enable export of objects to see this value})
+Assertion Succeeded (Constraint: is null, Value: null)
 Test Passed (PHPUnit\TestFixture\Event\ErrorHandlerCanBeDisabled\FooTest::testErrorHandlerIsNotSet)
 Test Finished (PHPUnit\TestFixture\Event\ErrorHandlerCanBeDisabled\FooTest::testErrorHandlerIsNotSet)
 Test Suite Finished (PHPUnit\TestFixture\Event\ErrorHandlerCanBeDisabled\FooTest, 4 tests)
diff --git a/tests/end-to-end/event/suppressed-user-notice.phpt b/tests/end-to-end/event/suppressed-user-notice.phpt
index 84c6c110632..8d73c0b6471 100644
--- a/tests/end-to-end/event/suppressed-user-notice.phpt
+++ b/tests/end-to-end/event/suppressed-user-notice.phpt
@@ -36,7 +36,7 @@ Test Passed (PHPUnit\TestFixture\Event\SuppressedUserNoticeTest::testSuppressedU
 Test Finished (PHPUnit\TestFixture\Event\SuppressedUserNoticeTest::testSuppressedUserNotice)
 Test Preparation Started (PHPUnit\TestFixture\Event\SuppressedUserNoticeTest::testSuppressedUserNoticeErrorGetLast)
 Test Prepared (PHPUnit\TestFixture\Event\SuppressedUserNoticeTest::testSuppressedUserNoticeErrorGetLast)
-Assertion Succeeded (Constraint: is null, Value: {enable export of objects to see this value})
+Assertion Succeeded (Constraint: is null, Value: null)
 Test Triggered Suppressed Notice (PHPUnit\TestFixture\Event\SuppressedUserNoticeTest::testSuppressedUserNoticeErrorGetLast)
 message
 Assertion Succeeded (Constraint: is of type array, Value: Array &0 [
diff --git a/tests/end-to-end/event/suppressed-user-warning.phpt b/tests/end-to-end/event/suppressed-user-warning.phpt
index c79c052fa19..29f834d07c2 100644
--- a/tests/end-to-end/event/suppressed-user-warning.phpt
+++ b/tests/end-to-end/event/suppressed-user-warning.phpt
@@ -36,7 +36,7 @@ Test Passed (PHPUnit\TestFixture\Event\SuppressedUserWarningTest::testSuppressed
 Test Finished (PHPUnit\TestFixture\Event\SuppressedUserWarningTest::testSuppressedUserWarning)
 Test Preparation Started (PHPUnit\TestFixture\Event\SuppressedUserWarningTest::testSuppressedUserWarningErrorGetLast)
 Test Prepared (PHPUnit\TestFixture\Event\SuppressedUserWarningTest::testSuppressedUserWarningErrorGetLast)
-Assertion Succeeded (Constraint: is null, Value: {enable export of objects to see this value})
+Assertion Succeeded (Constraint: is null, Value: null)
 Test Triggered Suppressed Warning (PHPUnit\TestFixture\Event\SuppressedUserWarningTest::testSuppressedUserWarningErrorGetLast)
 message
 Assertion Succeeded (Constraint: is of type array, Value: Array &0 [
diff --git a/tests/end-to-end/event/user-deprecated.phpt b/tests/end-to-end/event/user-deprecated.phpt
index ee9e582ef0e..e20f8423c5e 100644
--- a/tests/end-to-end/event/user-deprecated.phpt
+++ b/tests/end-to-end/event/user-deprecated.phpt
@@ -38,7 +38,7 @@ Test Passed (PHPUnit\TestFixture\Event\DeprecatedFeatureTest::testDeprecatedFeat
 Test Finished (PHPUnit\TestFixture\Event\DeprecatedFeatureTest::testDeprecatedFeature)
 Test Preparation Started (PHPUnit\TestFixture\Event\DeprecatedFeatureTest::testDeprecatedSuppressedErrorGetLast)
 Test Prepared (PHPUnit\TestFixture\Event\DeprecatedFeatureTest::testDeprecatedSuppressedErrorGetLast)
-Assertion Succeeded (Constraint: is null, Value: {enable export of objects to see this value})
+Assertion Succeeded (Constraint: is null, Value: null)
 Test Triggered Suppressed Deprecation (PHPUnit\TestFixture\Event\DeprecatedFeatureTest::testDeprecatedSuppressedErrorGetLast)
 message
 Assertion Succeeded (Constraint: is of type array, Value: Array &0 [
diff --git a/tests/end-to-end/event/user-notice.phpt b/tests/end-to-end/event/user-notice.phpt
index b5383c757a9..d7e18c7dd54 100644
--- a/tests/end-to-end/event/user-notice.phpt
+++ b/tests/end-to-end/event/user-notice.phpt
@@ -36,7 +36,7 @@ Test Passed (PHPUnit\TestFixture\Event\UserNoticeTest::testUserNotice)
 Test Finished (PHPUnit\TestFixture\Event\UserNoticeTest::testUserNotice)
 Test Preparation Started (PHPUnit\TestFixture\Event\UserNoticeTest::testUserNoticeErrorGetLast)
 Test Prepared (PHPUnit\TestFixture\Event\UserNoticeTest::testUserNoticeErrorGetLast)
-Assertion Succeeded (Constraint: is null, Value: {enable export of objects to see this value})
+Assertion Succeeded (Constraint: is null, Value: null)
 Test Triggered Notice (PHPUnit\TestFixture\Event\UserNoticeTest::testUserNoticeErrorGetLast)
 message
 Assertion Succeeded (Constraint: is of type array, Value: Array &0 [
diff --git a/tests/end-to-end/event/user-warning.phpt b/tests/end-to-end/event/user-warning.phpt
index dccf7c4d784..49624596b7b 100644
--- a/tests/end-to-end/event/user-warning.phpt
+++ b/tests/end-to-end/event/user-warning.phpt
@@ -36,7 +36,7 @@ Test Passed (PHPUnit\TestFixture\Event\UserWarningTest::testUserWarning)
 Test Finished (PHPUnit\TestFixture\Event\UserWarningTest::testUserWarning)
 Test Preparation Started (PHPUnit\TestFixture\Event\UserWarningTest::testUserWarningErrorGetLast)
 Test Prepared (PHPUnit\TestFixture\Event\UserWarningTest::testUserWarningErrorGetLast)
-Assertion Succeeded (Constraint: is null, Value: {enable export of objects to see this value})
+Assertion Succeeded (Constraint: is null, Value: null)
 Test Triggered Warning (PHPUnit\TestFixture\Event\UserWarningTest::testUserWarningErrorGetLast)
 message
 Assertion Succeeded (Constraint: is of type array, Value: Array &0 [