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to-be-checked.js
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to-be-checked.js
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import {roles} from 'aria-query'
import {checkHtmlElement, toSentence} from './utils'
export function toBeChecked(element) {
checkHtmlElement(element, toBeChecked, this)
const isValidInput = () => {
return (
element.tagName.toLowerCase() === 'input' &&
['checkbox', 'radio'].includes(element.type)
)
}
const isValidAriaElement = () => {
return (
roleSupportsChecked(element.getAttribute('role')) &&
['true', 'false'].includes(element.getAttribute('aria-checked'))
)
}
if (!isValidInput() && !isValidAriaElement()) {
return {
pass: false,
message: () =>
`only inputs with type="checkbox" or type="radio" or elements with ${supportedRolesSentence()} and a valid aria-checked attribute can be used with .toBeChecked(). Use .toHaveValue() instead`,
}
}
const isChecked = () => {
if (isValidInput()) return element.checked
return element.getAttribute('aria-checked') === 'true'
}
return {
pass: isChecked(),
message: () => {
const is = isChecked() ? 'is' : 'is not'
return [
this.utils.matcherHint(
`${this.isNot ? '.not' : ''}.toBeChecked`,
'element',
'',
),
'',
`Received element ${is} checked:`,
` ${this.utils.printReceived(element.cloneNode(false))}`,
].join('\n')
},
}
}
function supportedRolesSentence() {
return toSentence(
supportedRoles().map(role => `role="${role}"`),
{lastWordConnector: ' or '},
)
}
function supportedRoles() {
return roles.keys().filter(roleSupportsChecked)
}
function roleSupportsChecked(role) {
return roles.get(role)?.props['aria-checked'] !== undefined
}