From 2567b7feaa77f1c89119f7966b262ee52fd2b676 Mon Sep 17 00:00:00 2001
From: Benjamin Lorenz <lorenz@math.tu-berlin.de>
Date: Mon, 9 Dec 2024 09:54:34 +0100
Subject: [PATCH] tests: keep some vectors alive for references

---
 test/stdlib.jl | 46 +++++++++++++++++++++++++---------------------
 1 file changed, 25 insertions(+), 21 deletions(-)

diff --git a/test/stdlib.jl b/test/stdlib.jl
index 461ae8e..cab0de1 100644
--- a/test/stdlib.jl
+++ b/test/stdlib.jl
@@ -180,19 +180,21 @@ end
     @test vec isa StdVector{StdString}
     @test vec == ["a", "b", "c"]
 
-    svec_ref = CxxRef.(StdString["a", "b", "c"])
-    vec = StdVector{StdString}(svec_ref)
-    @test vec isa StdVector{StdString}
-    @test vec == ["a", "b", "c"]
-
-    svec_deref = getindex.(svec_ref)::Vector{CxxWrap.StdLib.StdStringDereferenced}
-    vec = StdVector{StdString}(svec_deref)
-    @test vec isa StdVector{StdString}
-    @test vec == ["a", "b", "c"]
-
-    @test_throws MethodError StdVector{Bool}([true])
-    @test_throws MethodError StdVector{eltype(svec_alloc)}(svec_alloc)
-    @test_throws MethodError StdVector{eltype(svec_deref)}(svec_deref)
+    let svec = StdString["a", "b", "c"]
+      svec_ref = CxxRef.(svec)
+      vec = StdVector{StdString}(svec_ref)
+      @test vec isa StdVector{StdString}
+      @test vec == ["a", "b", "c"]
+
+      svec_deref = getindex.(svec_ref)::Vector{CxxWrap.StdLib.StdStringDereferenced}
+      vec = StdVector{StdString}(svec_deref)
+      @test vec isa StdVector{StdString}
+      @test vec == ["a", "b", "c"]
+
+      @test_throws MethodError StdVector{Bool}([true])
+      @test_throws MethodError StdVector{eltype(svec_alloc)}(svec_alloc)
+      @test_throws MethodError StdVector{eltype(svec_deref)}(svec_deref)
+    end
   end
 
   @testset "constructors" begin
@@ -231,15 +233,17 @@ end
     @test vec isa StdVector{StdString}
     @test vec == ["a", "b", "c"]
 
-    svec_ref = CxxRef.(StdString["a", "b", "c"])
-    vec = StdVector(svec_ref)
-    @test vec isa StdVector{StdString}
-    @test vec == ["a", "b", "c"]
+    let svec = StdString["a", "b", "c"]
+      svec_ref = CxxRef.(svec)
+      vec = StdVector(svec_ref)
+      @test vec isa StdVector{StdString}
+      @test vec == ["a", "b", "c"]
 
-    svec_deref = getindex.(svec_ref)::Vector{CxxWrap.StdLib.StdStringDereferenced}
-    vec = StdVector(svec_deref)
-    @test vec isa StdVector{StdString}
-    @test vec == ["a", "b", "c"]
+      svec_deref = getindex.(svec_ref)::Vector{CxxWrap.StdLib.StdStringDereferenced}
+      vec = StdVector(svec_deref)
+      @test vec isa StdVector{StdString}
+      @test vec == ["a", "b", "c"]
+    end
 
     @test_throws MethodError StdVector(["a", "b", "c"])
   end