fix up value

2 files changed, 4 insertions, 1 deletions

diff --git a/tests/modules/string/serialize/test.lua b/tests/modules/string/serialize/test.lua
index ab8986867..66b216566 100644
--- a/tests/modules/string/serialize/test.lua
+++ b/tests/modules/string/serialize/test.lua
@@ -42,6 +42,9 @@ function test_function(t)
     t:are_equal(roundtrip(function() return {{1, 2, 3, nil, 4}} end)(), {{1, 2, 3, nil, 4}})
     t:are_equal(roundtrip({function() return {{1, 2, 3, nil, 4}} end})[1](), {{1, 2, 3, nil, 4}})
     t:are_equal(roundtrip({{function() return {{1, 2, 3, nil, 4}} end}})[1][1](), {{1, 2, 3, nil, 4}})
+
+    t:will_raise(function() string.serialize({io.open}):deserialize()[1]("test.lua") end, "attempt to call global 'setmetatable' (a nil value)")
+    t:will_raise(function() string.serialize({io.open}):deserialize()[1]("not/a/file") end, "failed to open file: not/a/file")
 end
 
 function test_refloop(t)
diff --git a/tests/test_utils/test_assert.lua b/tests/test_utils/test_assert.lua
index a964fcfb3..1cf0e9386 100644
--- a/tests/test_utils/test_assert.lua
+++ b/tests/test_utils/test_assert.lua
@@ -57,7 +57,7 @@ function test_assert:will_raise(func, message_pattern)
                 local funcs = { func, unpack(self._will_raise_stack) }
                 if ok then
                     self:print_error("expected raise but finished successfully", funcs)
-                elseif message_pattern and not string.find(error, message_pattern) then
+                elseif message_pattern and not error:find(message_pattern, 1, true) and not error:find(message_pattern) then
                     self:print_error(format("expected raise with message ${green}%s${reset} but got ${red}%s${reset}", message_pattern, error), funcs)
                 end
             end