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label-has-associated-control-test.js
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label-has-associated-control-test.js
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/* eslint-env jest */
/**
* @fileoverview Enforce label tags have an associated control.
* @author Jesse Beach
*/
// -----------------------------------------------------------------------------
// Requirements
// -----------------------------------------------------------------------------
import { RuleTester } from 'eslint';
import parserOptionsMapper from '../../__util__/parserOptionsMapper';
import rule from '../../../src/rules/label-has-associated-control';
import ruleOptionsMapperFactory from '../../__util__/ruleOptionsMapperFactory';
// -----------------------------------------------------------------------------
// Tests
// -----------------------------------------------------------------------------
const ruleTester = new RuleTester();
const ruleName = 'label-has-associated-control';
const expectedError = {
message: 'A form label must be associated with a control.',
type: 'JSXOpeningElement',
};
const htmlForValid = [
{ code: '<label htmlFor="js_id"><span><span><span>A label</span></span></span></label>', options: [{ depth: 4 }] },
{ code: '<label htmlFor="js_id" aria-label="A label" />' },
{ code: '<label htmlFor="js_id" aria-labelledby="A label" />' },
{ code: '<div><label htmlFor="js_id">A label</label><input id="js_id" /></div>' },
// Custom label component.
{ code: '<CustomLabel htmlFor="js_id" aria-label="A label" />', options: [{ labelComponents: ['CustomLabel'] }] },
{ code: '<CustomLabel htmlFor="js_id" label="A label" />', options: [{ labelAttributes: ['label'], labelComponents: ['CustomLabel'] }] },
// Custom label attributes.
{ code: '<label htmlFor="js_id" label="A label" />', options: [{ labelAttributes: ['label'] }] },
// Glob support for controlComponents option.
{ code: '<CustomLabel htmlFor="js_id" aria-label="A label" />', options: [{ controlComponents: ['Custom*'] }] },
{ code: '<CustomLabel htmlFor="js_id" aria-label="A label" />', options: [{ controlComponents: ['*Label'] }] },
];
const nestingValid = [
{ code: '<label>A label<input /></label>' },
{ code: '<label>A label<textarea /></label>' },
{ code: '<label><img alt="A label" /><input /></label>' },
{ code: '<label><img aria-label="A label" /><input /></label>' },
{ code: '<label><span>A label<input /></span></label>' },
{ code: '<label><span><span>A label<input /></span></span></label>', options: [{ depth: 3 }] },
{ code: '<label><span><span><span>A label<input /></span></span></span></label>', options: [{ depth: 4 }] },
{ code: '<label><span><span><span><span>A label</span><input /></span></span></span></label>', options: [{ depth: 5 }] },
{ code: '<label><span><span><span><span aria-label="A label" /><input /></span></span></span></label>', options: [{ depth: 5 }] },
{ code: '<label><span><span><span><input aria-label="A label" /></span></span></span></label>', options: [{ depth: 5 }] },
// Other controls
{ code: '<label>foo<meter /></label>' },
{ code: '<label>foo<output /></label>' },
{ code: '<label>foo<progress /></label>' },
{ code: '<label>foo<textarea /></label>' },
// Custom controlComponents.
{ code: '<label><span>A label<CustomInput /></span></label>', options: [{ controlComponents: ['CustomInput'] }] },
{ code: '<CustomLabel><span>A label<CustomInput /></span></CustomLabel>', options: [{ controlComponents: ['CustomInput'], labelComponents: ['CustomLabel'] }] },
{ code: '<CustomLabel><span label="A label"><CustomInput /></span></CustomLabel>', options: [{ controlComponents: ['CustomInput'], labelComponents: ['CustomLabel'], labelAttributes: ['label'] }] },
// Glob support for controlComponents option.
{ code: '<label><span>A label<CustomInput /></span></label>', options: [{ controlComponents: ['Custom*'] }] },
{ code: '<label><span>A label<CustomInput /></span></label>', options: [{ controlComponents: ['*Input'] }] },
];
const bothValid = [
{ code: '<label htmlFor="js_id"><span><span><span>A label<input /></span></span></span></label>', options: [{ depth: 4 }] },
{ code: '<label htmlFor="js_id" aria-label="A label"><input /></label>' },
{ code: '<label htmlFor="js_id" aria-labelledby="A label"><input /></label>' },
{ code: '<label htmlFor="js_id" aria-labelledby="A label"><textarea /></label>' },
// Custom label component.
{ code: '<CustomLabel htmlFor="js_id" aria-label="A label"><input /></CustomLabel>', options: [{ labelComponents: ['CustomLabel'] }] },
{ code: '<CustomLabel htmlFor="js_id" label="A label"><input /></CustomLabel>', options: [{ labelAttributes: ['label'], labelComponents: ['CustomLabel'] }] },
// Custom label attributes.
{ code: '<label htmlFor="js_id" label="A label"><input /></label>', options: [{ labelAttributes: ['label'] }] },
{ code: '<label htmlFor="selectInput">Some text<select id="selectInput" /></label>' },
];
const alwaysValid = [
{ code: '<div />' },
{ code: '<CustomElement />' },
{ code: '<input type="hidden" />' },
];
const htmlForInvalid = [
{ code: '<label htmlFor="js_id"><span><span><span>A label</span></span></span></label>', options: [{ depth: 4 }], errors: [expectedError] },
{ code: '<label htmlFor="js_id" aria-label="A label" />', errors: [expectedError] },
{ code: '<label htmlFor="js_id" aria-labelledby="A label" />', errors: [expectedError] },
// Custom label component.
{ code: '<CustomLabel htmlFor="js_id" aria-label="A label" />', options: [{ labelComponents: ['CustomLabel'] }], errors: [expectedError] },
{ code: '<CustomLabel htmlFor="js_id" label="A label" />', options: [{ labelAttributes: ['label'], labelComponents: ['CustomLabel'] }], errors: [expectedError] },
// Custom label attributes.
{ code: '<label htmlFor="js_id" label="A label" />', options: [{ labelAttributes: ['label'] }], errors: [expectedError] },
];
const nestingInvalid = [
{ code: '<label>A label<input /></label>', errors: [expectedError] },
{ code: '<label>A label<textarea /></label>', errors: [expectedError] },
{ code: '<label><img alt="A label" /><input /></label>', errors: [expectedError] },
{ code: '<label><img aria-label="A label" /><input /></label>', errors: [expectedError] },
{ code: '<label><span>A label<input /></span></label>', errors: [expectedError] },
{ code: '<label><span><span>A label<input /></span></span></label>', options: [{ depth: 3 }], errors: [expectedError] },
{ code: '<label><span><span><span>A label<input /></span></span></span></label>', options: [{ depth: 4 }], errors: [expectedError] },
{ code: '<label><span><span><span><span>A label</span><input /></span></span></span></label>', options: [{ depth: 5 }], errors: [expectedError] },
{ code: '<label><span><span><span><span aria-label="A label" /><input /></span></span></span></label>', options: [{ depth: 5 }], errors: [expectedError] },
{ code: '<label><span><span><span><input aria-label="A label" /></span></span></span></label>', options: [{ depth: 5 }], errors: [expectedError] },
// Custom controlComponents.
{ code: '<label><span>A label<CustomInput /></span></label>', options: [{ controlComponents: ['CustomInput'] }], errors: [expectedError] },
{ code: '<CustomLabel><span>A label<CustomInput /></span></CustomLabel>', options: [{ controlComponents: ['CustomInput'], labelComponents: ['CustomLabel'] }], errors: [expectedError] },
{ code: '<CustomLabel><span label="A label"><CustomInput /></span></CustomLabel>', options: [{ controlComponents: ['CustomInput'], labelComponents: ['CustomLabel'], labelAttributes: ['label'] }], errors: [expectedError] },
];
const neverValid = [
{ code: '<label htmlFor="js_id" />', errors: [expectedError] },
{ code: '<label htmlFor="js_id"><input /></label>', errors: [expectedError] },
{ code: '<label htmlFor="js_id"><textarea /></label>', errors: [expectedError] },
{ code: '<label></label>', errors: [expectedError] },
{ code: '<label>A label</label>', errors: [expectedError] },
{ code: '<div><label /><input /></div>', errors: [expectedError] },
{ code: '<div><label>A label</label><input /></div>', errors: [expectedError] },
// Custom label component.
{ code: '<CustomLabel aria-label="A label" />', options: [{ labelComponents: ['CustomLabel'] }], errors: [expectedError] },
{ code: '<CustomLabel label="A label" />', options: [{ labelAttributes: ['label'], labelComponents: ['CustomLabel'] }], errors: [expectedError] },
// Custom label attributes.
{ code: '<label label="A label" />', options: [{ labelAttributes: ['label'] }], errors: [expectedError] },
// Custom controlComponents.
{ code: '<label><span><CustomInput /></span></label>', options: [{ controlComponents: ['CustomInput'] }], errors: [expectedError] },
{ code: '<CustomLabel><span><CustomInput /></span></CustomLabel>', options: [{ controlComponents: ['CustomInput'], labelComponents: ['CustomLabel'] }], errors: [expectedError] },
{ code: '<CustomLabel><span><CustomInput /></span></CustomLabel>', options: [{ controlComponents: ['CustomInput'], labelComponents: ['CustomLabel'], labelAttributes: ['label'] }], errors: [expectedError] },
];
// htmlFor valid
ruleTester.run(ruleName, rule, {
valid: [
...alwaysValid,
...htmlForValid,
]
.map(ruleOptionsMapperFactory({
assert: 'htmlFor',
}))
.map(parserOptionsMapper),
invalid: [
...neverValid,
...nestingInvalid,
]
.map(ruleOptionsMapperFactory({
assert: 'htmlFor',
}))
.map(parserOptionsMapper),
});
// nesting valid
ruleTester.run(ruleName, rule, {
valid: [
...alwaysValid,
...nestingValid,
]
.map(ruleOptionsMapperFactory({
assert: 'nesting',
}))
.map(parserOptionsMapper),
invalid: [
...neverValid,
...htmlForInvalid,
]
.map(ruleOptionsMapperFactory({
assert: 'nesting',
}))
.map(parserOptionsMapper),
});
// either valid
ruleTester.run(ruleName, rule, {
valid: [
...alwaysValid,
...htmlForValid,
...nestingValid,
]
.map(ruleOptionsMapperFactory({
assert: 'either',
}))
.map(parserOptionsMapper),
invalid: [
...neverValid,
].map(parserOptionsMapper),
});
// both valid
ruleTester.run(ruleName, rule, {
valid: [
...alwaysValid,
...bothValid,
]
.map(ruleOptionsMapperFactory({
assert: 'both',
}))
.map(parserOptionsMapper),
invalid: [
...neverValid,
].map(parserOptionsMapper),
});