Add time slice fairness test #178
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Reviewer's GuideAdds a new integration test that configures ConnectionActor with a zero high-before-low limit and a 10 ms time slice, then drives the actor through interleaved high- and low-priority pushes to verify low-priority items are emitted in the middle of the sequence once the time slice elapses. File-Level Changes
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Actionable comments posted: 1
🔭 Outside diff range comments (2)
tests/connection_actor.rs (2)
17-17: Replace forbidden#[allow]attributes with#[expect].The coding guidelines explicitly forbid
#[allow]and require narrowly scoped#[expect(lint, reason = "...")]instead.-#[allow(unused_braces)] +#[expect(unused_braces, reason = "rstest fixture requires braces for consistency")]Apply this change to all three fixture functions.
Also applies to: 21-21, 25-25
117-146: Add missing test attributes to prevent clippy error.The function
fairness_disabled_processes_all_high_firstis missing the#[rstest]and#[tokio::test]attributes, causing it to be unused and triggering a clippy error.+#[rstest] +#[tokio::test] async fn fairness_disabled_processes_all_high_first(
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📒 Files selected for processing (1)
tests/connection_actor.rs(1 hunks)
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📓 Path-based instructions (1)
`**/*.rs`: * Seek to keep the cyclomatic complexity of functions no more than 12...
**/*.rs: * Seek to keep the cyclomatic complexity of functions no more than 12.
Adhere to single responsibility and CQRS
Place function attributes after doc comments.
Do not use
returnin single-line functions.Move conditionals with >2 branches into a predicate function.
Avoid
unsafeunless absolutely necessary.Every module must begin with a
//!doc comment that explains the module's purpose and utility.Comments must use en-GB-oxendict spelling and grammar.
Lints must not be silenced except as a last resort.
#[allow]is forbidden.- Only narrowly scoped
#[expect(lint, reason = "...")]is allowed.- No lint groups, no blanket or file-wide suppression.
- Include
FIXME:with link if a fix is expected.Use
rstestfixtures for shared setup and to avoid repetition between tests.Replace duplicated tests with
#[rstest(...)]parameterised cases.Prefer
mockallfor mocks/stubs.Prefer
.expect()over.unwrap()Ensure that any API or behavioural changes are reflected in the documentation in
docs/Ensure that any completed roadmap steps are recorded in the appropriate roadmap in
docs/
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List of files the instruction was applied to:
tests/connection_actor.rs
🪛 GitHub Actions: CI
tests/connection_actor.rs
[error] 117-117: Clippy error: function fairness_disabled_processes_all_high_first is never used.
🔇 Additional comments (1)
tests/connection_actor.rs (1)
73-115: Well-implemented time slice fairness test.The test correctly validates time-based queue fairness behaviour by:
- Configuring
max_high_before_low: 0to disable count-based fairness- Setting a 10ms time slice
- Carefully timing the push operations to exceed the time slice
- Verifying that the low-priority item appears in the middle of the output sequence
The use of
tokio::spawnandoneshotchannel is appropriate for testing the asynchronous behaviour.
| use std::time::Duration; | ||
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| use tokio::{sync::oneshot, time::sleep}; |
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🛠️ Refactor suggestion
Remove redundant imports.
The imports std::time::Duration and tokio::{sync::oneshot, time::sleep} are redundant. Duration and sleep are already imported at the module level (lines 8-9), and oneshot should be imported at the module level for consistency.
- use std::time::Duration;
-
- use tokio::{sync::oneshot, time::sleep};Add oneshot to the existing tokio imports at the module level:
-use tokio::time::{Duration, sleep, timeout};
+use tokio::{sync::oneshot, time::{Duration, sleep, timeout}};🤖 Prompt for AI Agents
In tests/connection_actor.rs around lines 77 to 79, remove the redundant imports
of std::time::Duration and tokio::{sync::oneshot, time::sleep} since Duration
and sleep are already imported at the module level. Instead, add oneshot to the
existing tokio imports at the module level for consistency and clean up
duplicate imports in this section.
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@coderabbitai what's causing this error? |
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Tip For best results, initiate chat on the files or code changes. 🧩 Analysis chain@leynos The error is occurring because the function From the structure of other tests in the file, it appears this function should be annotated as a test. Here's what needs to be fixed: #[tokio::test]
async fn fairness_disabled_processes_all_high_first(
// ... rest of functionThe function is defined but not marked as a test, so the Rust compiler sees it as dead code since it's never called. You have a few options to fix this:
The most likely solution is that this function should have the 🏁 Script executed: Length of output: 9955 🏁 Script executed: Length of output: 681 🏁 Script executed: Length of output: 2529 @leynos I can see exactly what's causing the error. The function Looking at the code, all the other test functions have both async fn fairness_disabled_processes_all_high_first(It should be: #[rstest]
#[tokio::test]
async fn fairness_disabled_processes_all_high_first(The function appears to be a legitimate test that verifies fairness behavior when fairness is disabled (with The fix: Add the missing annotations at line 117: #[rstest]
#[tokio::test]
async fn fairness_disabled_processes_all_high_first(
queues: (PushQueues<u8>, wireframe::push::PushHandle<u8>),
shutdown_token: CancellationToken,
) {
// ... rest of the functionThe |
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Summary
max_high_before_lowis zeroTesting
make fmtmake lintmake testcargo test fairness_yields_low_with_time_slice -- --nocapturehttps://chatgpt.com/codex/tasks/task_e_68684cd037548322a494feb0d1e8476d
Summary by Sourcery
Tests: