1 files changed, 38 insertions, 0 deletions
diff --git a/test/diagnostics/duplicate-doc-field.lua b/test/diagnostics/duplicate-doc-field.lua
new file mode 100644
index 00000000..8f385335
--- /dev/null
+++ b/test/diagnostics/duplicate-doc-field.lua
@@ -0,0 +1,38 @@
+TEST [[
+---@class Class
+---@field <!x!> Class
+---@field <!x!> Class
+]]
+
+TEST [[
+--- @class Emit
+--- @field on fun(eventName: string, cb: function)
+--- @field on fun(eventName: '"died"', cb: fun(i: integer))
+--- @field on fun(eventName: '"won"', cb: fun(s: string))
+local emit = {}
+]]
+
+TEST [[
+--- @class Emit
+--- @field on fun(eventName: string, cb: function)
+--- @field <!on!> fun(eventName: '"died"', cb: fun(i: integer))
+--- @field on fun(eventName: '"won"', cb: fun(s: string))
+--- @field <!on!> fun(eventName: '"died"', cb: fun(i: integer))
+local emit = {}
+]]
+
+TEST [[
+---@class A
+
+---@class B
+---@field [integer] A
+---@field [A] true
+]]
+
+TEST [[
+---@class A
+
+---@class B
+---@field [<!A!>] A
+---@field [<!A!>] true
+]]