diff --git a/pkg/JuliaInterface/tst/utils.tst b/pkg/JuliaInterface/tst/utils.tst
index 8544e1b1c..5fc170dc9 100644
--- a/pkg/JuliaInterface/tst/utils.tst
+++ b/pkg/JuliaInterface/tst/utils.tst
@@ -85,5 +85,15 @@ function ( arg... )
     <<kernel code>> from Julia:parse
 end
 
+##
+gap> IsBound(Julia.Main.f00bar);
+false
+gap> Julia.Main.f00bar := 1;
+1
+gap> IsBound(Julia.Main.f00bar);
+true
+gap> Unbind(Julia.Main.f00bar);
+Error, cannot unbind Julia variables
+
 ##
 gap> STOP_TEST( "utils.tst", 1 );
diff --git a/test/conversion.jl b/test/conversion.jl
index 6aa05a93b..496b78eb2 100644
--- a/test/conversion.jl
+++ b/test/conversion.jl
@@ -75,6 +75,7 @@
     x = GAP.evalstr("'x'")
     @test (@inferred GAP.gap_to_julia(Cuchar, x)) == Cuchar('x')
     @test GAP.gap_to_julia(x) == Cuchar('x')
+    @test GAP.gap_to_julia(Char, x) == Char('x')
     x = GAP.evalstr("(1,2,3)")
     @test_throws GAP.ConversionError GAP.gap_to_julia(Cuchar, x)
   end
@@ -108,6 +109,8 @@
     @test (@inferred GAP.gap_to_julia(Vector{UInt8}, x)) == UInt8[0x66, 0x6f, 0x6f]
     x = GAP.evalstr("[1,2,3]")
     @test (@inferred GAP.gap_to_julia(Vector{UInt8}, x)) == UInt8[1, 2, 3]
+    x = GAP.evalstr("(1,2,3)")
+    @test_throws GAP.ConversionError GAP.gap_to_julia(Vector{UInt8}, x)
   end
 
   @testset "BitVectors" begin