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Flaky desktop test: an_unreachable_server_is_reported_without_the_media_link can lose its free port #2002
Description
src-tauri/src/commands/download.rs, test an_unreachable_server_is_reported_without_the_media_link, binds 127.0.0.1:0, reads the port, releases the listener, and then expects nothing to answer there. Another test in the same run can bind that port in between (the httpmock servers in tool_downloads/tests.rs and the local_server tests all take ephemeral ports), and the request then reaches a live server, so the test fails. Seen once in four full src-tauri runs while fixing PR #2001; it predates that PR.
Fix: keep the listener open and accept nothing (the connect succeeds and the read times out), or use a port that cannot answer, such as a non-routable address with a short timeout, so no other test can take it.
Activity
mbeisser1 commentedon Oct 10, 2026
Confirmed: the test in
src-tauri/src/commands/download.rsreleases its port before the request, and seven other tests in the crate starthttpmockservers on ephemeral ports, so another test can take it. Brief: the test keeps the listener for its whole life and a thread accepts each connection and drops it at once, so the request fails immediately with the port never free for another test and no timeout involved; the assertions stay as they are (the message says the server could not be reached, without the Media Link). A unit test must not depend on time, so no fix that waits on reqwest's 30-second default. Test-only; no CHANGELOG entry.