81 lines
2.5 KiB
JavaScript
81 lines
2.5 KiB
JavaScript
import { expect, fixture, html } from '@open-wc/testing';
|
|
|
|
import '../lion-textarea.js';
|
|
|
|
describe('<lion-textarea>', () => {
|
|
it(`can be used with the following declaration
|
|
~~~
|
|
<lion-textarea></lion-textarea>
|
|
~~~`, async () => {
|
|
const el = await fixture(`<lion-textarea></lion-textarea>`);
|
|
expect(el.querySelector('textarea').nodeName).to.equal('TEXTAREA');
|
|
});
|
|
|
|
it('has default minRows and maxRows', async () => {
|
|
const el = await fixture(`<lion-textarea></lion-textarea>`);
|
|
expect(el.rows).to.equal(2);
|
|
expect(el.maxRows).to.equal(6);
|
|
});
|
|
|
|
it('supports initial modelValue', async () => {
|
|
const el = await fixture(
|
|
html`
|
|
<lion-textarea .modelValue="${'From value attribute'}"></lion-textarea>
|
|
`,
|
|
);
|
|
expect(el.querySelector('textarea').value).to.equal('From value attribute');
|
|
});
|
|
|
|
it('adjusts height based on content', async () => {
|
|
const el = await fixture(`<lion-textarea></lion-textarea>`);
|
|
const initialHeight = el.offsetHeight;
|
|
el.modelValue = 'batman\nand\nrobin\nand\ncatwoman';
|
|
await el.updateComplete;
|
|
const hightWith5TextLines = el.offsetHeight;
|
|
expect(hightWith5TextLines > initialHeight).to.equal(true);
|
|
|
|
el.modelValue = 'batman';
|
|
await el.updateComplete;
|
|
const hightWith1Line = el.offsetHeight;
|
|
expect(hightWith1Line < hightWith5TextLines).to.equal(true);
|
|
});
|
|
|
|
it(`starts growing when content is bigger than "rows"
|
|
'and stops growing after property "maxRows" is reached`, async () => {
|
|
const el = await fixture(`<lion-textarea></lion-textarea>`);
|
|
return [1, 2, 3, 4, 5, 6, 7, 8].reduce(async (heightPromise, i) => {
|
|
const oldHeight = await heightPromise;
|
|
el.modelValue += '\n';
|
|
await el.updateComplete;
|
|
const newHeight = el.offsetHeight;
|
|
|
|
if (i > el.maxRows) {
|
|
// stop growing
|
|
expect(newHeight).to.equal(oldHeight);
|
|
} else if (i > el.rows) {
|
|
// growing normally
|
|
expect(newHeight >= oldHeight).to.equal(true);
|
|
}
|
|
|
|
return Promise.resolve(newHeight);
|
|
}, Promise.resolve(0));
|
|
});
|
|
|
|
it('stops shrinking after property "rows" is reached', async () => {
|
|
const el = await fixture(
|
|
html`
|
|
<lion-textarea rows="1" max-rows="3"></lion-textarea>
|
|
`,
|
|
);
|
|
|
|
expect(el.scrollHeight).to.be.equal(el.clientHeight);
|
|
const oneRowHeight = el.clientHeight;
|
|
|
|
el.rows = 3;
|
|
el.resizeTextarea();
|
|
await el.updateComplete;
|
|
expect(oneRowHeight)
|
|
.to.be.below(el.clientHeight)
|
|
.and.to.be.below(el.scrollHeight);
|
|
});
|
|
});
|