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class="kw">pub</span>(<span class="kw">crate</span>) remaining: usize, <span class="kw">pub</span>(<span class="kw">crate</span>) reset_epoch_utc: usize, } <span class="kw">impl </span>Status { <span class="doccomment">/// Constructs status limit status from parts. </span><span class="attr">#[must_use] </span><span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">fn </span>new(count: usize, limit: usize, reset_epoch_utc: usize) -> <span class="self">Self </span>{ <span class="kw">let </span>remaining = <span class="kw">if </span>count >= limit { <span class="number">0 </span>} <span class="kw">else </span>{ limit - count }; Status { limit, remaining, reset_epoch_utc, } } <span class="doccomment">/// Returns the maximum number of requests allowed in the current period. </span><span class="attr">#[must_use] </span><span class="kw">pub fn </span>limit(<span class="kw-2">&</span><span class="self">self</span>) -> usize { <span class="self">self</span>.limit } <span class="doccomment">/// Returns how many requests are left in the current period. </span><span class="attr">#[must_use] </span><span class="kw">pub fn </span>remaining(<span class="kw-2">&</span><span class="self">self</span>) -> usize { <span class="self">self</span>.remaining } <span class="doccomment">/// Returns a UNIX timestamp in UTC approximately when the next period will begin. </span><span class="attr">#[must_use] </span><span class="kw">pub fn </span>reset_epoch_utc(<span class="kw-2">&</span><span class="self">self</span>) -> usize { <span class="self">self</span>.reset_epoch_utc } <span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">fn </span>epoch_utc_plus(duration: Duration) -> <span class="prelude-ty">Result</span><usize, LimitationError> { <span class="kw">match </span>chrono::Duration::from_std(duration) { <span class="prelude-val">Ok</span>(value) => <span class="prelude-val">Ok</span>(chrono::Utc::now() .add(value) .round_subsecs(<span class="number">0</span>) .timestamp() .try_into() .unwrap_or(<span class="number">0</span>)), <span class="prelude-val">Err</span>(<span class="kw">_</span>) => <span class="prelude-val">Err</span>(LimitationError::Other( <span class="string">"Source duration value is out of range for the target type"</span>.to_string(), )), } } } <span class="attr">#[cfg(test)] </span><span class="kw">mod </span>tests { <span class="kw">use super</span>::<span class="kw-2">*</span>; <span class="attr">#[test] </span><span class="kw">fn </span>test_create_status() { <span class="kw">let </span>status = Status { limit: <span class="number">100</span>, remaining: <span class="number">0</span>, reset_epoch_utc: <span class="number">1000</span>, }; <span class="macro">assert_eq!</span>(status.limit(), <span class="number">100</span>); <span class="macro">assert_eq!</span>(status.remaining(), <span class="number">0</span>); <span class="macro">assert_eq!</span>(status.reset_epoch_utc(), <span class="number">1000</span>); } <span class="attr">#[test] </span><span class="kw">fn </span>test_build_status() { <span class="kw">let </span>count = <span class="number">200</span>; <span class="kw">let </span>limit = <span class="number">100</span>; <span class="kw">let </span>status = Status::new(count, limit, <span class="number">2000</span>); <span class="macro">assert_eq!</span>(status.limit(), limit); <span class="macro">assert_eq!</span>(status.remaining(), <span class="number">0</span>); <span class="macro">assert_eq!</span>(status.reset_epoch_utc(), <span class="number">2000</span>); } <span class="attr">#[test] </span><span class="kw">fn </span>test_build_status_limit() { <span class="kw">let </span>limit = <span class="number">100</span>; <span class="kw">let </span>status = Status::new(<span class="number">0</span>, limit, <span class="number">2000</span>); <span class="macro">assert_eq!</span>(status.limit(), limit); <span class="macro">assert_eq!</span>(status.remaining(), limit); <span class="macro">assert_eq!</span>(status.reset_epoch_utc(), <span class="number">2000</span>); } <span class="attr">#[test] </span><span class="kw">fn </span>test_epoch_utc_plus_zero() { <span class="kw">let </span>duration = Duration::from_secs(<span class="number">0</span>); <span class="kw">let </span>seconds = Status::epoch_utc_plus(duration).unwrap(); <span class="macro">assert!</span>(seconds <span class="kw">as </span>u64 >= duration.as_secs()); } <span class="attr">#[test] </span><span class="kw">fn </span>test_epoch_utc_plus() { <span class="kw">let </span>duration = Duration::from_secs(<span class="number">10</span>); <span class="kw">let </span>seconds = Status::epoch_utc_plus(duration).unwrap(); <span class="macro">assert!</span>(seconds <span class="kw">as </span>u64 >= duration.as_secs() + <span class="number">10</span>); } <span class="attr">#[test] #[should_panic = <span class="string">"Source duration value is out of range for the target type"</span>] </span><span class="kw">fn </span>test_epoch_utc_plus_overflow() { <span class="kw">let </span>duration = Duration::from_secs(<span class="number">10000000000000000000</span>); Status::epoch_utc_plus(duration).unwrap(); } } </code></pre></div></section></main></body></html>