diff --git a/packages/better-php-doc-parser/tests/PhpDocInfo/PhpDocInfoPrinter/FixtureBasic/callable_mixed.txt b/packages/better-php-doc-parser/tests/PhpDocInfo/PhpDocInfoPrinter/FixtureBasic/callable_mixed.txt
new file mode 100644
index 000000000000..d8b26e83423c
--- /dev/null
+++ b/packages/better-php-doc-parser/tests/PhpDocInfo/PhpDocInfoPrinter/FixtureBasic/callable_mixed.txt
@@ -0,0 +1 @@
+/** @var callable(array<mixed>):mixed */
diff --git a/packages/better-php-doc-parser/tests/PhpDocInfo/PhpDocInfoPrinter/FixtureBasic/callable_nullable_return.txt b/packages/better-php-doc-parser/tests/PhpDocInfo/PhpDocInfoPrinter/FixtureBasic/callable_nullable_return.txt
new file mode 100644
index 000000000000..9092c854308c
--- /dev/null
+++ b/packages/better-php-doc-parser/tests/PhpDocInfo/PhpDocInfoPrinter/FixtureBasic/callable_nullable_return.txt
@@ -0,0 +1 @@
+/** @param callable():?string $userIdCallback */
diff --git a/packages/better-php-doc-parser/tests/PhpDocInfo/PhpDocInfoPrinter/FixtureBasic/callable_param.txt b/packages/better-php-doc-parser/tests/PhpDocInfo/PhpDocInfoPrinter/FixtureBasic/callable_param.txt
new file mode 100644
index 000000000000..b8ec2aa2bd17
--- /dev/null
+++ b/packages/better-php-doc-parser/tests/PhpDocInfo/PhpDocInfoPrinter/FixtureBasic/callable_param.txt
@@ -0,0 +1 @@
+/** @param callable(array<mixed>):mixed $hitCallback */
diff --git a/packages/better-php-doc-parser/tests/PhpDocInfo/PhpDocInfoPrinter/FixtureBasic/callable_rich.txt b/packages/better-php-doc-parser/tests/PhpDocInfo/PhpDocInfoPrinter/FixtureBasic/callable_rich.txt
new file mode 100644
index 000000000000..71bf24f67c8f
--- /dev/null
+++ b/packages/better-php-doc-parser/tests/PhpDocInfo/PhpDocInfoPrinter/FixtureBasic/callable_rich.txt
@@ -0,0 +1 @@
+/** @param callable(TValue, TKey):(Map<TKey, TMappedValue>|TMappedValue) $callback */