/
prefer-to-be-undefined.js
56 lines (53 loc) · 1.24 KB
/
prefer-to-be-undefined.js
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'use strict';
const {
argument,
argument2,
expectToBeCase,
expectNotToBeCase,
expectToEqualCase,
expectNotToEqualCase,
getDocsUrl,
method,
method2,
} = require('./util');
module.exports = {
meta: {
docs: {
url: getDocsUrl(__filename),
},
messages: {
useToBeUndefined: 'Use toBeUndefined() instead',
},
fixable: 'code',
schema: [],
},
create(context) {
return {
CallExpression(node) {
const is =
expectToBeCase(node, undefined) || expectToEqualCase(node, undefined);
const isNot =
expectNotToEqualCase(node, undefined) ||
expectNotToBeCase(node, undefined);
if (is || isNot) {
context.report({
fix(fixer) {
if (is) {
return [
fixer.replaceText(method(node), 'toBeUndefined'),
fixer.remove(argument(node)),
];
}
return [
fixer.replaceText(method2(node), 'toBeUndefined'),
fixer.remove(argument2(node)),
];
},
messageId: 'useToBeUndefined',
node: is ? method(node) : method2(node),
});
}
},
};
},
};