chore: update tests to show asset canister properly handles special c…

…hars (#4103)

e2e/tests-dfx/assetscanister.bash

@@ -726,24 +726,24 @@ check_permission_failure() {
 }
 
 @test "can serve filenames with special characters in filename" {
-  # This is observed, not expected behavior
-  # see https://dfinity.atlassian.net/browse/SDK-1247
   install_asset assetscanister
 
   dfx_start
 
   echo "filename is an ae symbol" >'src/e2e_project_frontend/assets/æ'
 
   dfx deploy
+  ID=$(dfx canister id e2e_project_frontend)
+  PORT=$(get_webserver_port)
 
   dfx canister  call --query e2e_project_frontend list '(record {})'
 
-  # decode as expected
+  # decode as expected - %c3%a6 is the utf-8 encoding of the ae symbol
   assert_command dfx canister call --query e2e_project_frontend http_request '(record{url="/%c3%a6";headers=vec{};method="GET";body=vec{}})'
   assert_match "filename is an ae symbol" # candid looks like blob "filename is \c3\a6\0a"
 
-  ID=$(dfx canister id e2e_project_frontend)
-  PORT=$(get_webserver_port)
+  assert_command curl --fail -vv http://localhost:"$PORT"/%c3%a6?canisterId="$ID"
+  assert_match "filename is an ae symbol"
 
   # fails with because %e6 is not valid utf-8 percent encoding
   assert_command_fail curl --fail -vv http://localhost:"$PORT"/%e6?canisterId="$ID"