3 files changed, 37 insertions, 0 deletions
diff --git a/server/test/completion/init.lua b/server/test/completion/init.lua
index 0f4b27d3..2b79aa4d 100644
--- a/server/test/completion/init.lua
+++ b/server/test/completion/init.lua
@@ -824,3 +824,18 @@ local abcd
         kind = CompletionItemKind.Class,
     },
 }
+
+TEST [[
+---@alias abc abb
+---@type a$
+]]
+{
+    {
+        label = 'abc',
+        kind = CompletionItemKind.Class,
+    },
+    {
+        label = 'abb',
+        kind = CompletionItemKind.Class,
+    },
+}
diff --git a/server/test/definition/emmy.lua b/server/test/definition/emmy.lua
index 82bac7a8..93fbd2be 100644
--- a/server/test/definition/emmy.lua
+++ b/server/test/definition/emmy.lua
@@ -61,3 +61,8 @@ end
 ---@class A
 local obj = setmetatable({}, mt)
 ]]
+
+TEST [[
+---@alias <!B A!>
+---@type <?B?>
+]]
diff --git a/server/test/diagnostics/init.lua b/server/test/diagnostics/init.lua
index 82fe51bd..827df06a 100644
--- a/server/test/diagnostics/init.lua
+++ b/server/test/diagnostics/init.lua
@@ -365,3 +365,20 @@ TEST [[
 ---@class A
 ---@type A|<!B!>|<!C!>
 ]]
+
+TEST [[
+---@class AAA
+---@alias B AAA
+
+---@type B
+]]
+
+TEST [[
+---@alias B <!AAA!>
+]]
+
+TEST [[
+---@class <!A!>
+---@class B
+---@alias <!A B!>
+]]