add initial tests

docs/resources/changelog.md

@@ -10,6 +10,7 @@ _During the beta period, these restrictions may be relaxed in the event of a mis
 
 - Added `?` to optional arguments in methods tables
 - Added the `scrollPosition()` method to `sl-textarea` to get/set scroll position
+- Added intial tests for `sl-dialog`, `sl-drawer`, `sl-dropdown`, and `sl-tooltip`
 - Fixed a bug in `sl-tab-group` where scrollable tab icons were not displaying correctly
 - Fixed a bug in `sl-dialog` and `sl-drawer` where preventing clicks on the overlay no longer worked as described [#452](https://github.com/shoelace-style/shoelace/issues/452)
 - Fixed a bug in `sl-dialog` and `sl-drawer` where setting initial focus no longer worked as described [#453](https://github.com/shoelace-style/shoelace/issues/453)
@@ -27,6 +28,8 @@ Technical reasons aside, canceling these events seldom led to a good user experi
 
 - 🚨 BREAKING: `sl-show` and `sl-hide` events are no longer cancelable
 - Added Iconoir example to the icon docs
+- Added Web Test Runner
+- Added intial tests for `sl-alert` and `sl-details`
 - Changed the `cancelable` default to `false` for the internal `@event` decorator
 - Fixed a bug where toggling `open` stopped working in `sl-alert`, `sl-dialog`, `sl-drawer`, `sl-dropdown`, and `sl-tooltip`
 - Fixed a bug in `sl-range` where setting a value outside the default `min` or `max` would clamp the value [#448](https://github.com/shoelace-style/shoelace/issues/448)

src/components/alert/alert.test.ts

@@ -13,10 +13,10 @@ describe('<sl-alert>', () => {
   });
 
   it('should not be visible without the open attribute', async () => {
-    const el = await fixture(html` <sl-alert open>I am an alert</sl-alert> `);
+    const el = await fixture(html` <sl-alert>I am an alert</sl-alert> `);
     const base = el.shadowRoot?.querySelector('[part="base"]') as HTMLElement;
 
-    expect(base.hidden).to.be.false;
+    expect(base.hidden).to.be.true;
   });
 
   it('should emit sl-show and sl-after-show when calling show()', async () => {
@@ -55,7 +55,7 @@ describe('<sl-alert>', () => {
     expect(base.hidden).to.be.true;
   });
 
-  it('should emit sl-show and sl-after-show when adding the open attribute', async () => {
+  it('should emit sl-show and sl-after-show when setting open = true', async () => {
     const el = (await fixture(html` <sl-alert>I am an alert</sl-alert> `)) as SlAlert;
     const base = el.shadowRoot?.querySelector('[part="base"]') as HTMLElement;
     const showHandler = sinon.spy();
@@ -73,7 +73,7 @@ describe('<sl-alert>', () => {
     expect(base.hidden).to.be.false;
   });
 
-  it('should emit sl-hide and sl-after-hide when removing the open attribute', async () => {
+  it('should emit sl-hide and sl-after-hide when setting open = false', async () => {
     const el = (await fixture(html` <sl-alert open>I am an alert</sl-alert> `)) as SlAlert;
     const base = el.shadowRoot?.querySelector('[part="base"]') as HTMLElement;
     const hideHandler = sinon.spy();

src/components/details/details.test.ts

@@ -79,7 +79,7 @@ describe('<sl-details>', () => {
     expect(body.hidden).to.be.true;
   });
 
-  it('should emit sl-show and sl-after-show when adding the open attribute', async () => {
+  it('should emit sl-show and sl-after-show when setting open = true', async () => {
     const el = (await fixture(html`
       <sl-details>
         Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore
@@ -103,7 +103,7 @@ describe('<sl-details>', () => {
     expect(body.hidden).to.be.false;
   });
 
-  it('should emit sl-hide and sl-after-hide when removing the open attribute', async () => {
+  it('should emit sl-hide and sl-after-hide when setting open = false', async () => {
     const el = (await fixture(html`
       <sl-details open>
         Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore

src/components/dialog/dialog.test.ts

@@ -0,0 +1,132 @@
+import { expect, fixture, html, waitUntil } from '@open-wc/testing';
+import sinon from 'sinon';
+
+import '../../../dist/shoelace.js';
+import type SlDialog from './dialog';
+
+describe('<sl-dialog>', () => {
+  it('should be visible with the open attribute', async () => {
+    const el = await fixture(html`
+      <sl-dialog open>Lorem ipsum dolor sit amet, consectetur adipiscing elit.</sl-dialog>
+    `);
+    const base = el.shadowRoot?.querySelector('[part="base"]') as HTMLElement;
+
+    expect(base.hidden).to.be.false;
+  });
+
+  it('should not be visible without the open attribute', async () => {
+    const el = await fixture(html` <sl-dialog>Lorem ipsum dolor sit amet, consectetur adipiscing elit.</sl-dialog> `);
+    const base = el.shadowRoot?.querySelector('[part="base"]') as HTMLElement;
+
+    expect(base.hidden).to.be.true;
+  });
+
+  it('should emit sl-show and sl-after-show when calling show()', async () => {
+    const el = (await fixture(html`
+      <sl-dialog>Lorem ipsum dolor sit amet, consectetur adipiscing elit.</sl-dialog>
+    `)) as SlDialog;
+    const base = el.shadowRoot?.querySelector('[part="base"]') as HTMLElement;
+    const showHandler = sinon.spy();
+    const afterShowHandler = sinon.spy();
+
+    el.addEventListener('sl-show', showHandler);
+    el.addEventListener('sl-after-show', afterShowHandler);
+    el.show();
+
+    await waitUntil(() => showHandler.calledOnce);
+    await waitUntil(() => afterShowHandler.calledOnce);
+
+    expect(showHandler).to.have.been.calledOnce;
+    expect(afterShowHandler).to.have.been.calledOnce;
+    expect(base.hidden).to.be.false;
+  });
+
+  it('should emit sl-hide and sl-after-hide when calling hide()', async () => {
+    const el = (await fixture(html`
+      <sl-dialog open>Lorem ipsum dolor sit amet, consectetur adipiscing elit.</sl-dialog>
+    `)) as SlDialog;
+    const base = el.shadowRoot?.querySelector('[part="base"]') as HTMLElement;
+    const hideHandler = sinon.spy();
+    const afterHideHandler = sinon.spy();
+
+    el.addEventListener('sl-hide', hideHandler);
+    el.addEventListener('sl-after-hide', afterHideHandler);
+    el.hide();
+
+    await waitUntil(() => hideHandler.calledOnce);
+    await waitUntil(() => afterHideHandler.calledOnce);
+
+    expect(hideHandler).to.have.been.calledOnce;
+    expect(afterHideHandler).to.have.been.calledOnce;
+    expect(base.hidden).to.be.true;
+  });
+
+  it('should emit sl-show and sl-after-show when setting open = true', async () => {
+    const el = (await fixture(html`
+      <sl-dialog>Lorem ipsum dolor sit amet, consectetur adipiscing elit.</sl-dialog>
+    `)) as SlDialog;
+    const base = el.shadowRoot?.querySelector('[part="base"]') as HTMLElement;
+    const showHandler = sinon.spy();
+    const afterShowHandler = sinon.spy();
+
+    el.addEventListener('sl-show', showHandler);
+    el.addEventListener('sl-after-show', afterShowHandler);
+    el.open = true;
+
+    await waitUntil(() => showHandler.calledOnce);
+    await waitUntil(() => afterShowHandler.calledOnce);
+
+    expect(showHandler).to.have.been.calledOnce;
+    expect(afterShowHandler).to.have.been.calledOnce;
+    expect(base.hidden).to.be.false;
+  });
+
+  it('should emit sl-hide and sl-after-hide when setting open = false', async () => {
+    const el = (await fixture(html`
+      <sl-dialog open>Lorem ipsum dolor sit amet, consectetur adipiscing elit.</sl-dialog>
+    `)) as SlDialog;
+    const base = el.shadowRoot?.querySelector('[part="base"]') as HTMLElement;
+    const hideHandler = sinon.spy();
+    const afterHideHandler = sinon.spy();
+
+    el.addEventListener('sl-hide', hideHandler);
+    el.addEventListener('sl-after-hide', afterHideHandler);
+    el.open = false;
+
+    await waitUntil(() => hideHandler.calledOnce);
+    await waitUntil(() => afterHideHandler.calledOnce);
+
+    expect(hideHandler).to.have.been.calledOnce;
+    expect(afterHideHandler).to.have.been.calledOnce;
+    expect(base.hidden).to.be.true;
+  });
+
+  it('should not close when sl-overlay-dismiss is prevented', async () => {
+    const el = (await fixture(html`
+      <sl-dialog open>Lorem ipsum dolor sit amet, consectetur adipiscing elit.</sl-dialog>
+    `)) as SlDialog;
+    const overlay = el.shadowRoot?.querySelector('[part="overlay"]') as HTMLElement;
+
+    el.addEventListener('sl-overlay-dismiss', event => event.preventDefault());
+    overlay.click();
+
+    expect(el.open).to.be.true;
+  });
+
+  it('should allow initial focus to be set', async () => {
+    const el = (await fixture(html` <sl-dialog><input /></sl-dialog> `)) as SlDialog;
+    const input = el.querySelector('input');
+    const initialFocusHandler = sinon.spy(event => {
+      event.preventDefault();
+      input.focus();
+    });
+
+    el.addEventListener('sl-initial-focus', initialFocusHandler);
+    el.show();
+
+    await waitUntil(() => initialFocusHandler.calledOnce);
+
+    expect(initialFocusHandler).to.have.been.calledOnce;
+    expect(document.activeElement).to.equal(input);
+  });
+});

src/components/drawer/drawer.test.ts

@@ -0,0 +1,132 @@
+import { expect, fixture, html, waitUntil } from '@open-wc/testing';
+import sinon from 'sinon';
+
+import '../../../dist/shoelace.js';
+import type SlDrawer from './drawer';
+
+describe('<sl-drawer>', () => {
+  it('should be visible with the open attribute', async () => {
+    const el = await fixture(html`
+      <sl-drawer open>Lorem ipsum dolor sit amet, consectetur adipiscing elit.</sl-drawer>
+    `);
+    const base = el.shadowRoot?.querySelector('[part="base"]') as HTMLElement;
+
+    expect(base.hidden).to.be.false;
+  });
+
+  it('should not be visible without the open attribute', async () => {
+    const el = await fixture(html` <sl-drawer>Lorem ipsum dolor sit amet, consectetur adipiscing elit.</sl-drawer> `);
+    const base = el.shadowRoot?.querySelector('[part="base"]') as HTMLElement;
+
+    expect(base.hidden).to.be.true;
+  });
+
+  it('should emit sl-show and sl-after-show when calling show()', async () => {
+    const el = (await fixture(html`
+      <sl-drawer>Lorem ipsum dolor sit amet, consectetur adipiscing elit.</sl-drawer>
+    `)) as SlDrawer;
+    const base = el.shadowRoot?.querySelector('[part="base"]') as HTMLElement;
+    const showHandler = sinon.spy();
+    const afterShowHandler = sinon.spy();
+
+    el.addEventListener('sl-show', showHandler);
+    el.addEventListener('sl-after-show', afterShowHandler);
+    el.show();
+
+    await waitUntil(() => showHandler.calledOnce);
+    await waitUntil(() => afterShowHandler.calledOnce);
+
+    expect(showHandler).to.have.been.calledOnce;
+    expect(afterShowHandler).to.have.been.calledOnce;
+    expect(base.hidden).to.be.false;
+  });
+
+  it('should emit sl-hide and sl-after-hide when calling hide()', async () => {
+    const el = (await fixture(html`
+      <sl-drawer open>Lorem ipsum dolor sit amet, consectetur adipiscing elit.</sl-drawer>
+    `)) as SlDrawer;
+    const base = el.shadowRoot?.querySelector('[part="base"]') as HTMLElement;
+    const hideHandler = sinon.spy();
+    const afterHideHandler = sinon.spy();
+
+    el.addEventListener('sl-hide', hideHandler);
+    el.addEventListener('sl-after-hide', afterHideHandler);
+    el.hide();
+
+    await waitUntil(() => hideHandler.calledOnce);
+    await waitUntil(() => afterHideHandler.calledOnce);
+
+    expect(hideHandler).to.have.been.calledOnce;
+    expect(afterHideHandler).to.have.been.calledOnce;
+    expect(base.hidden).to.be.true;
+  });
+
+  it('should emit sl-show and sl-after-show when setting open = true', async () => {
+    const el = (await fixture(html`
+      <sl-drawer>Lorem ipsum dolor sit amet, consectetur adipiscing elit.</sl-drawer>
+    `)) as SlDrawer;
+    const base = el.shadowRoot?.querySelector('[part="base"]') as HTMLElement;
+    const showHandler = sinon.spy();
+    const afterShowHandler = sinon.spy();
+
+    el.addEventListener('sl-show', showHandler);
+    el.addEventListener('sl-after-show', afterShowHandler);
+    el.open = true;
+
+    await waitUntil(() => showHandler.calledOnce);
+    await waitUntil(() => afterShowHandler.calledOnce);
+
+    expect(showHandler).to.have.been.calledOnce;
+    expect(afterShowHandler).to.have.been.calledOnce;
+    expect(base.hidden).to.be.false;
+  });
+
+  it('should emit sl-hide and sl-after-hide when setting open = false', async () => {
+    const el = (await fixture(html`
+      <sl-drawer open>Lorem ipsum dolor sit amet, consectetur adipiscing elit.</sl-drawer>
+    `)) as SlDrawer;
+    const base = el.shadowRoot?.querySelector('[part="base"]') as HTMLElement;
+    const hideHandler = sinon.spy();
+    const afterHideHandler = sinon.spy();
+
+    el.addEventListener('sl-hide', hideHandler);
+    el.addEventListener('sl-after-hide', afterHideHandler);
+    el.open = false;
+
+    await waitUntil(() => hideHandler.calledOnce);
+    await waitUntil(() => afterHideHandler.calledOnce);
+
+    expect(hideHandler).to.have.been.calledOnce;
+    expect(afterHideHandler).to.have.been.calledOnce;
+    expect(base.hidden).to.be.true;
+  });
+
+  it('should not close when sl-overlay-dismiss is prevented', async () => {
+    const el = (await fixture(html`
+      <sl-drawer open>Lorem ipsum dolor sit amet, consectetur adipiscing elit.</sl-drawer>
+    `)) as SlDrawer;
+    const overlay = el.shadowRoot?.querySelector('[part="overlay"]') as HTMLElement;
+
+    el.addEventListener('sl-overlay-dismiss', event => event.preventDefault());
+    overlay.click();
+
+    expect(el.open).to.be.true;
+  });
+
+  it('should allow initial focus to be set', async () => {
+    const el = (await fixture(html` <sl-drawer><input /></sl-drawer> `)) as SlDrawer;
+    const input = el.querySelector('input');
+    const initialFocusHandler = sinon.spy(event => {
+      event.preventDefault();
+      input.focus();
+    });
+
+    el.addEventListener('sl-initial-focus', initialFocusHandler);
+    el.show();
+
+    await waitUntil(() => initialFocusHandler.calledOnce);
+
+    expect(initialFocusHandler).to.have.been.calledOnce;
+    expect(document.activeElement).to.equal(input);
+  });
+});

src/components/dropdown/dropdown.test.ts

@@ -0,0 +1,147 @@
+import { expect, fixture, html, waitUntil } from '@open-wc/testing';
+import sinon from 'sinon';
+
+import '../../../dist/shoelace.js';
+import type SlDropdown from './dropdown';
+
+describe('<sl-dropdown>', () => {
+  it('should be visible with the open attribute', async () => {
+    const el = await fixture(html`
+      <sl-dropdown open>
+        <sl-button slot="trigger" caret>Toggle</sl-button>
+        <sl-menu>
+          <sl-menu-item>Item 1</sl-menu-item>
+          <sl-menu-item>Item 2</sl-menu-item>
+          <sl-menu-item>Item 3</sl-menu-item>
+        </sl-menu>
+      </sl-dropdown>
+    `);
+    const panel = el.shadowRoot?.querySelector('[part="panel"]') as HTMLElement;
+
+    expect(panel.hidden).to.be.false;
+  });
+
+  it('should not be visible without the open attribute', async () => {
+    const el = await fixture(html`
+      <sl-dropdown>
+        <sl-button slot="trigger" caret>Toggle</sl-button>
+        <sl-menu>
+          <sl-menu-item>Item 1</sl-menu-item>
+          <sl-menu-item>Item 2</sl-menu-item>
+          <sl-menu-item>Item 3</sl-menu-item>
+        </sl-menu>
+      </sl-dropdown>
+    `);
+    const panel = el.shadowRoot?.querySelector('[part="panel"]') as HTMLElement;
+
+    expect(panel.hidden).to.be.true;
+  });
+
+  it('should emit sl-show and sl-after-show when calling show()', async () => {
+    const el = (await fixture(html`
+      <sl-dropdown>
+        <sl-button slot="trigger" caret>Toggle</sl-button>
+        <sl-menu>
+          <sl-menu-item>Item 1</sl-menu-item>
+          <sl-menu-item>Item 2</sl-menu-item>
+          <sl-menu-item>Item 3</sl-menu-item>
+        </sl-menu>
+      </sl-dropdown>
+    `)) as SlDropdown;
+    const panel = el.shadowRoot?.querySelector('[part="panel"]') as HTMLElement;
+    const showHandler = sinon.spy();
+    const afterShowHandler = sinon.spy();
+
+    el.addEventListener('sl-show', showHandler);
+    el.addEventListener('sl-after-show', afterShowHandler);
+    el.show();
+
+    await waitUntil(() => showHandler.calledOnce);
+    await waitUntil(() => afterShowHandler.calledOnce);
+
+    expect(showHandler).to.have.been.calledOnce;
+    expect(afterShowHandler).to.have.been.calledOnce;
+    expect(panel.hidden).to.be.false;
+  });
+
+  it('should emit sl-hide and sl-after-hide when calling hide()', async () => {
+    const el = (await fixture(html`
+      <sl-dropdown open>
+        <sl-button slot="trigger" caret>Toggle</sl-button>
+        <sl-menu>
+          <sl-menu-item>Item 1</sl-menu-item>
+          <sl-menu-item>Item 2</sl-menu-item>
+          <sl-menu-item>Item 3</sl-menu-item>
+        </sl-menu>
+      </sl-dropdown>
+    `)) as SlDropdown;
+    const panel = el.shadowRoot?.querySelector('[part="panel"]') as HTMLElement;
+    const hideHandler = sinon.spy();
+    const afterHideHandler = sinon.spy();
+
+    el.addEventListener('sl-hide', hideHandler);
+    el.addEventListener('sl-after-hide', afterHideHandler);
+    el.hide();
+
+    await waitUntil(() => hideHandler.calledOnce);
+    await waitUntil(() => afterHideHandler.calledOnce);
+
+    expect(hideHandler).to.have.been.calledOnce;
+    expect(afterHideHandler).to.have.been.calledOnce;
+    expect(panel.hidden).to.be.true;
+  });
+
+  it('should emit sl-show and sl-after-show when setting open = true', async () => {
+    const el = (await fixture(html`
+      <sl-dropdown>
+        <sl-button slot="trigger" caret>Toggle</sl-button>
+        <sl-menu>
+          <sl-menu-item>Item 1</sl-menu-item>
+          <sl-menu-item>Item 2</sl-menu-item>
+          <sl-menu-item>Item 3</sl-menu-item>
+        </sl-menu>
+      </sl-dropdown>
+    `)) as SlDropdown;
+    const panel = el.shadowRoot?.querySelector('[part="panel"]') as HTMLElement;
+    const showHandler = sinon.spy();
+    const afterShowHandler = sinon.spy();
+
+    el.addEventListener('sl-show', showHandler);
+    el.addEventListener('sl-after-show', afterShowHandler);
+    el.open = true;
+
+    await waitUntil(() => showHandler.calledOnce);
+    await waitUntil(() => afterShowHandler.calledOnce);
+
+    expect(showHandler).to.have.been.calledOnce;
+    expect(afterShowHandler).to.have.been.calledOnce;
+    expect(panel.hidden).to.be.false;
+  });
+
+  it('should emit sl-hide and sl-after-hide when setting open = false', async () => {
+    const el = (await fixture(html`
+      <sl-dropdown open>
+        <sl-button slot="trigger" caret>Toggle</sl-button>
+        <sl-menu>
+          <sl-menu-item>Item 1</sl-menu-item>
+          <sl-menu-item>Item 2</sl-menu-item>
+          <sl-menu-item>Item 3</sl-menu-item>
+        </sl-menu>
+      </sl-dropdown>
+    `)) as SlDropdown;
+    const panel = el.shadowRoot?.querySelector('[part="panel"]') as HTMLElement;
+    const hideHandler = sinon.spy();
+    const afterHideHandler = sinon.spy();
+
+    el.addEventListener('sl-hide', hideHandler);
+    el.addEventListener('sl-after-hide', afterHideHandler);
+    el.open = false;
+
+    await waitUntil(() => hideHandler.calledOnce);
+    await waitUntil(() => afterHideHandler.calledOnce);
+
+    expect(hideHandler).to.have.been.calledOnce;
+    expect(afterHideHandler).to.have.been.calledOnce;
+    expect(panel.hidden).to.be.true;
+  });
+});

src/components/tooltip/tooltip.test.ts

@@ -0,0 +1,117 @@
+import { expect, fixture, html, waitUntil } from '@open-wc/testing';
+import sinon from 'sinon';
+
+import '../../../dist/shoelace.js';
+import type SlTooltip from './tooltip';
+
+describe('<sl-tooltip>', () => {
+  it('should be visible with the open attribute', async () => {
+    const el = await fixture(html`
+      <sl-tooltip content="This is a tooltip" open>
+        <sl-button>Hover Me</sl-button>
+      </sl-tooltip>
+    `);
+    const base = el.shadowRoot?.querySelector('[part="base"]') as HTMLElement;
+
+    expect(base.hidden).to.be.false;
+  });
+
+  it('should not be visible without the open attribute', async () => {
+    const el = await fixture(html`
+      <sl-tooltip content="This is a tooltip">
+        <sl-button>Hover Me</sl-button>
+      </sl-tooltip>
+    `);
+    const base = el.shadowRoot?.querySelector('[part="base"]') as HTMLElement;
+
+    expect(base.hidden).to.be.true;
+  });
+
+  it('should emit sl-show and sl-after-show when calling show()', async () => {
+    const el = (await fixture(html`
+      <sl-tooltip content="This is a tooltip">
+        <sl-button>Hover Me</sl-button>
+      </sl-tooltip>
+    `)) as SlTooltip;
+    const base = el.shadowRoot?.querySelector('[part="base"]') as HTMLElement;
+    const showHandler = sinon.spy();
+    const afterShowHandler = sinon.spy();
+
+    el.addEventListener('sl-show', showHandler);
+    el.addEventListener('sl-after-show', afterShowHandler);
+    el.show();
+
+    await waitUntil(() => showHandler.calledOnce);
+    await waitUntil(() => afterShowHandler.calledOnce);
+
+    expect(showHandler).to.have.been.calledOnce;
+    expect(afterShowHandler).to.have.been.calledOnce;
+    expect(base.hidden).to.be.false;
+  });
+
+  it('should emit sl-hide and sl-after-hide when calling hide()', async () => {
+    const el = (await fixture(html`
+      <sl-tooltip content="This is a tooltip" open>
+        <sl-button>Hover Me</sl-button>
+      </sl-tooltip>
+    `)) as SlTooltip;
+    const base = el.shadowRoot?.querySelector('[part="base"]') as HTMLElement;
+    const hideHandler = sinon.spy();
+    const afterHideHandler = sinon.spy();
+
+    el.addEventListener('sl-hide', hideHandler);
+    el.addEventListener('sl-after-hide', afterHideHandler);
+    el.hide();
+
+    await waitUntil(() => hideHandler.calledOnce);
+    await waitUntil(() => afterHideHandler.calledOnce);
+
+    expect(hideHandler).to.have.been.calledOnce;
+    expect(afterHideHandler).to.have.been.calledOnce;
+    expect(base.hidden).to.be.true;
+  });
+
+  it('should emit sl-show and sl-after-show when setting open = true', async () => {
+    const el = (await fixture(html`
+      <sl-tooltip content="This is a tooltip">
+        <sl-button>Hover Me</sl-button>
+      </sl-tooltip>
+    `)) as SlTooltip;
+    const base = el.shadowRoot?.querySelector('[part="base"]') as HTMLElement;
+    const showHandler = sinon.spy();
+    const afterShowHandler = sinon.spy();
+
+    el.addEventListener('sl-show', showHandler);
+    el.addEventListener('sl-after-show', afterShowHandler);
+    el.open = true;
+
+    await waitUntil(() => showHandler.calledOnce);
+    await waitUntil(() => afterShowHandler.calledOnce);
+
+    expect(showHandler).to.have.been.calledOnce;
+    expect(afterShowHandler).to.have.been.calledOnce;
+    expect(base.hidden).to.be.false;
+  });
+
+  it('should emit sl-hide and sl-after-hide when setting open = false', async () => {
+    const el = (await fixture(html`
+      <sl-tooltip content="This is a tooltip" open>
+        <sl-button>Hover Me</sl-button>
+      </sl-tooltip>
+    `)) as SlTooltip;
+    const base = el.shadowRoot?.querySelector('[part="base"]') as HTMLElement;
+    const hideHandler = sinon.spy();
+    const afterHideHandler = sinon.spy();
+
+    el.addEventListener('sl-hide', hideHandler);
+    el.addEventListener('sl-after-hide', afterHideHandler);
+    el.open = false;
+
+    await waitUntil(() => hideHandler.calledOnce);
+    await waitUntil(() => afterHideHandler.calledOnce);
+
+    expect(hideHandler).to.have.been.calledOnce;
+    expect(afterHideHandler).to.have.been.calledOnce;
+    expect(base.hidden).to.be.true;
+  });
+});