diff --git a/tests/Features/Expect/toBeCasedCorrectly.php b/tests/Features/Expect/toBeCasedCorrectly.php
new file mode 100644
index 00000000..6a8432d2
--- /dev/null
+++ b/tests/Features/Expect/toBeCasedCorrectly.php
@@ -0,0 +1,12 @@
+<?php
+
+use Pest\Arch\Exceptions\ArchExpectationFailedException;
+
+test('pass')
+    ->expect('Tests\Fixtures\Arch\ToBeCasedCorrectly\CorrectCasing')
+    ->toBeCasedCorrectly();
+
+test('failure')
+    ->expect('Tests\Fixtures\Arch\ToBeCasedCorrectly\IncorrectCasing')
+    ->toBeCasedCorrectly()
+    ->throws(ArchExpectationFailedException::class);
diff --git a/tests/Fixtures/Arch/ToBeCasedCorrectly/CorrectCasing/CorrectCasing.php b/tests/Fixtures/Arch/ToBeCasedCorrectly/CorrectCasing/CorrectCasing.php
new file mode 100644
index 00000000..8418d969
--- /dev/null
+++ b/tests/Fixtures/Arch/ToBeCasedCorrectly/CorrectCasing/CorrectCasing.php
@@ -0,0 +1,5 @@
+<?php
+
+namespace Tests\Fixtures\Arch\ToBeCasedCorrectly\CorrectCasing;
+
+class CorrectCasing {}
diff --git a/tests/Fixtures/Arch/ToBeCasedCorrectly/IncorrectCasing/incorrectCasing.php b/tests/Fixtures/Arch/ToBeCasedCorrectly/IncorrectCasing/incorrectCasing.php
new file mode 100644
index 00000000..1f9bba1d
--- /dev/null
+++ b/tests/Fixtures/Arch/ToBeCasedCorrectly/IncorrectCasing/incorrectCasing.php
@@ -0,0 +1,5 @@
+<?php
+
+namespace Tests\Fixtures\Arch\ToBeCasedCorrectly\IncorrectCasing;
+
+class IncorrectCasing {}
diff --git a/tests/Fixtures/Arch/ToBeCasedCorrectly/incorrectDirectoryCasing/CorrectCasing.php b/tests/Fixtures/Arch/ToBeCasedCorrectly/incorrectDirectoryCasing/CorrectCasing.php
new file mode 100644
index 00000000..5e60ec1b
--- /dev/null
+++ b/tests/Fixtures/Arch/ToBeCasedCorrectly/incorrectDirectoryCasing/CorrectCasing.php
@@ -0,0 +1,5 @@
+<?php
+
+namespace Tests\Fixtures\Arch\ToBeCasedCorrectly\IncorrectDirectoryCasing;
+
+class CorrectCasing {}