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61 lines
1.3 KiB
61 lines
1.3 KiB
3 years ago
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export default {
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html: `
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<p>selected: null</p>
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<select>
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<option value='a'>a</option>
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<option value='b'>b</option>
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<option value='c'>c</option>
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</select>
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<p>selected: null</p>
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`,
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async test({ assert, component, target }) {
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const select = target.querySelector('select');
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const options = [...target.querySelectorAll('option')];
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assert.equal(component.selected, null);
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// no option should be selected since none of the options matches the bound value
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assert.equal(select.value, '');
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assert.equal(select.selectedIndex, -1);
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assert.ok(!options[0].selected);
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component.selected = 'a'; // first option should now be selected
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assert.equal(select.value, 'a');
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assert.ok(options[0].selected);
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assert.htmlEqual(target.innerHTML, `
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<p>selected: a</p>
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<select>
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<option value='a'>a</option>
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<option value='b'>b</option>
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<option value='c'>c</option>
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</select>
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<p>selected: a</p>
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`);
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component.selected = 'd'; // doesn't match an option
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// now no option should be selected again
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assert.equal(select.value, '');
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assert.equal(select.selectedIndex, -1);
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assert.ok(!options[0].selected);
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assert.htmlEqual(target.innerHTML, `
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<p>selected: d</p>
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<select>
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<option value='a'>a</option>
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<option value='b'>b</option>
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<option value='c'>c</option>
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</select>
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<p>selected: d</p>
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`);
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}
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};
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