From e375fe2cb6330a0e135c97450f0c98c424bf3f93 Mon Sep 17 00:00:00 2001
From: Tim Holy <tim.holy@gmail.com>
Date: Sun, 12 Mar 2023 05:43:52 -0500
Subject: [PATCH] Add test for issue #48802

Was fixed by #48954
---
 test/reflection.jl | 25 +++++++++++++++++++++++++
 1 file changed, 25 insertions(+)

diff --git a/test/reflection.jl b/test/reflection.jl
index 0c1081ba2c42f..7fa73d56df2b2 100644
--- a/test/reflection.jl
+++ b/test/reflection.jl
@@ -726,6 +726,31 @@ Base.delete_method(m)
 @test faz4(1) == 1
 @test faz4(1.0) == 1
 
+# Deletion & invoke (issue #48802)
+function f48802!(log, x::Integer)
+    log[] = "default"
+    return x + 1
+end
+function addmethod_48802()
+    @eval function f48802!(log, x::Int)
+        ret = invoke(f48802!, Tuple{Any, Integer}, log, x)
+        log[] = "specialized"
+        return ret
+    end
+end
+log = Ref{String}()
+@test f48802!(log, 1) == 2
+@test log[] == "default"
+addmethod_48802()
+@test f48802!(log, 1) == 2
+@test log[] == "specialized"
+Base.delete_method(which(f48802!, Tuple{Any, Int}))
+@test f48802!(log, 1) == 2
+@test log[] == "default"
+addmethod_48802()
+@test f48802!(log, 1) == 2
+@test log[] == "specialized"
+
 # Methods with keyword arguments
 fookw(x; direction=:up) = direction
 fookw(y::Int) = 2