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36 lines
1.4 KiB
HTML
36 lines
1.4 KiB
HTML
<!DOCTYPE html>
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<meta charset="utf-8">
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<title>Async local storage: undefined keys</title>
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<!-- https://github.com/domenic/async-local-storage/commit/5bf31109f37d1371f619ea33d0e2391f10e8b8f5 -->
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<script src="/resources/testharness.js"></script>
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<script src="/resources/testharnessreport.js"></script>
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<script type="module">
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import { StorageArea } from "std:async-local-storage";
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import { testWithArea } from "./helpers/als-tests.js";
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testWithArea(async (area) => {
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assert_equals(await area.get("key"), undefined);
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}, "Get on a non-existant key returns undefined");
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testWithArea(async (area) => {
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await area.set("key", undefined);
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assert_equals(await area.get("key"), undefined);
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assert_equals((await area.keys()).length, 0, "number of keys");
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assert_equals((await area.values()).length, 0, "number of values");
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assert_equals((await area.entries()).length, 0, "number of entries");
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}, "Setting undefined as a value when nothing was present is a no-op");
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testWithArea(async (area) => {
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await area.set("key", "value");
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await area.set("key", undefined);
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assert_equals(await area.get("key"), undefined);
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assert_equals((await area.keys()).length, 0, "number of keys");
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assert_equals((await area.values()).length, 0, "number of values");
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assert_equals((await area.entries()).length, 0, "number of entries");
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}, "Setting undefined as a value deletes what was previously there");
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</script>
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