diff --git a/README.md b/README.md
index 0f6a737..c3b74de 100644
--- a/README.md
+++ b/README.md
@@ -22,7 +22,7 @@
| ❌ | aria-roledescription | https://dequeuniversity.com/rules/axe/4.4/aria-roledescription?application=RuleDescription | Ensure aria-roledescription is only used on elements with an implicit or explicit role | Serious | cat.aria, wcag2a, wcag412 | failure, needs review | |
| ✅ | aria-roles | https://dequeuniversity.com/rules/axe/4.4/aria-roles?application=RuleDescription | Ensures all elements with a role attribute use a valid value | Minor, Serious, Critical | cat.aria, wcag2a, wcag412 | failure | [674b10](https://act-rules.github.io/rules/674b10) |
| ❌ | aria-toggle-field-name | https://dequeuniversity.com/rules/axe/4.4/aria-toggle-field-name?application=RuleDescription | Ensures every ARIA toggle field has an accessible name | Moderate, Serious | cat.aria, wcag2a, wcag412, ACT | failure, needs review | [e086e5](https://act-rules.github.io/rules/e086e5) |
-| ❌ | aria-tooltip-name | https://dequeuniversity.com/rules/axe/4.4/aria-tooltip-name?application=RuleDescription | Ensures every ARIA tooltip node has an accessible name | Serious | cat.aria, wcag2a, wcag412 | failure, needs review | |
+| ✅ | aria-tooltip-name | https://dequeuniversity.com/rules/axe/4.4/aria-tooltip-name?application=RuleDescription | Ensures every ARIA tooltip node has an accessible name | Serious | cat.aria, wcag2a, wcag412 | failure, needs review | |
| ✅ | aria-valid-attr-value | https://dequeuniversity.com/rules/axe/4.4/aria-valid-attr-value?application=RuleDescription | Ensures all ARIA attributes have valid values | Serious, Critical | cat.aria, wcag2a, wcag412 | failure, needs review | [6a7281](https://act-rules.github.io/rules/6a7281) |
| ✅ | aria-valid-attr | https://dequeuniversity.com/rules/axe/4.4/aria-valid-attr?application=RuleDescription | Ensures attributes that begin with aria- are valid ARIA attributes | Critical | cat.aria, wcag2a, wcag412 | failure | [5f99a7](https://act-rules.github.io/rules/5f99a7) |
| ✅ | audio-caption | https://dequeuniversity.com/rules/axe/4.4/audio-caption?application=RuleDescription | Ensures <audio> elements have captions | Critical | cat.time-and-media, wcag2a, wcag121, section508, section508.22.a | needs review | [2eb176](https://act-rules.github.io/rules/2eb176), [afb423](https://act-rules.github.io/rules/afb423) |
diff --git a/src/rules/aria-tooltip-name.ts b/src/rules/aria-tooltip-name.ts
new file mode 100644
index 0000000..a2ee52a
--- /dev/null
+++ b/src/rules/aria-tooltip-name.ts
@@ -0,0 +1,48 @@
+import { AccessibilityError } from "../scanner";
+import { labelledByIsValid, querySelectorAll } from "../utils";
+
+// Metadata
+const id = "aria-tooltip-name";
+const text = "ARIA tooltip must have an accessible name";
+const url = `https://dequeuniversity.com/rules/axe/4.4/${id}?application=RuleDescription`;
+
+/**
+ * Make sure that a elements text is "visible" to a screenreader user.
+ *
+ * - Inner text that is discernible to screen reader users.
+ * - Non-empty aria-label attribute.
+ * - aria-labelledby pointing to element with text which is discernible to screen reader users.
+ */
+function hasAccessibleText(el: Element): boolean {
+ if (el.hasAttribute("aria-label")) {
+ return el.getAttribute("aria-label")!.trim() !== "";
+ }
+
+ if (!labelledByIsValid(el)) return false;
+
+ if (el.getAttribute("title")) {
+ return el.getAttribute("title")!.trim() !== "";
+ }
+
+ if (el.textContent) {
+ return el.textContent.trim() !== "";
+ }
+
+ return true;
+}
+
+export function ariaTooltipName(el: Element): AccessibilityError[] {
+ const errors = [];
+ const tooltips = querySelectorAll("[role=tooltip]", el);
+ if (el.matches("[role=tooltip]")) tooltips.push(el);
+ for (const tooltip of tooltips) {
+ if (!hasAccessibleText(tooltip)) {
+ errors.push({
+ element: tooltip,
+ url,
+ text,
+ });
+ }
+ }
+ return errors;
+}
diff --git a/tests/aria-tooltip-name.ts b/tests/aria-tooltip-name.ts
new file mode 100644
index 0000000..1e8fe99
--- /dev/null
+++ b/tests/aria-tooltip-name.ts
@@ -0,0 +1,58 @@
+import { fixture, html, expect } from "@open-wc/testing";
+import { Scanner } from "../src/scanner";
+import { ariaTooltipName } from "../src/rules/aria-tooltip-name";
+
+const scanner = new Scanner([ariaTooltipName]);
+
+const passes = [
+ ``,
+ ``,
+ `Name
`,
+ ``,
+];
+
+const violations = [
+ ``,
+ ``,
+ ``,
+ ``,
+];
+
+describe("aria-tooltip-name", async function () {
+ for (const markup of passes) {
+ const el = await fixture(html`${markup}`);
+ it(el.outerHTML, async () => {
+ const results = (await scanner.scan(el)).map(({ text, url }) => {
+ return { text, url };
+ });
+
+ expect(results).to.be.empty;
+ });
+ }
+
+ for await (const markup of violations) {
+ const el = await fixture(html`${markup}`);
+ it(el.outerHTML, async () => {
+ const results = (await scanner.scan(el)).map(({ text, url }) => {
+ return { text, url };
+ });
+
+ expect(results).to.eql([
+ {
+ text: "ARIA tooltip must have an accessible name",
+ url: "https://dequeuniversity.com/rules/axe/4.4/aria-tooltip-name?application=RuleDescription",
+ },
+ ]);
+ });
+ }
+});