/
no-identical-title.js
87 lines (81 loc) · 1.96 KB
/
no-identical-title.js
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'use strict';
const {
getDocsUrl,
isDescribe,
isTestCase,
isString,
hasExpressions,
getStringValue,
} = require('./util');
const newDescribeContext = () => ({
describeTitles: [],
testTitles: [],
});
const handleTestCaseTitles = (context, titles, node, title) => {
if (isTestCase(node)) {
if (titles.indexOf(title) !== -1) {
context.report({ messageId: 'multipleTestTitle', node });
}
titles.push(title);
}
};
const handleDescribeBlockTitles = (context, titles, node, title) => {
if (!isDescribe(node)) {
return;
}
if (titles.indexOf(title) !== -1) {
context.report({ messageId: 'multipleDescribeTitle', node });
}
titles.push(title);
};
const isFirstArgValid = arg => {
if (!arg || !isString(arg)) {
return false;
}
if (arg.type === 'TemplateLiteral' && hasExpressions(arg)) {
return false;
}
return true;
};
module.exports = {
meta: {
docs: {
url: getDocsUrl(__filename),
},
messages: {
multipleTestTitle:
'Test title is used multiple times in the same describe block.',
multipleDescribeTitle:
'Describe block title is used multiple times in the same describe block.',
},
schema: [],
},
create(context) {
const contexts = [newDescribeContext()];
return {
CallExpression(node) {
const currentLayer = contexts[contexts.length - 1];
if (isDescribe(node)) {
contexts.push(newDescribeContext());
}
const [firstArgument] = node.arguments;
if (!isFirstArgValid(firstArgument)) {
return;
}
const title = getStringValue(firstArgument);
handleTestCaseTitles(context, currentLayer.testTitles, node, title);
handleDescribeBlockTitles(
context,
currentLayer.describeTitles,
node,
title,
);
},
'CallExpression:exit'(node) {
if (isDescribe(node)) {
contexts.pop();
}
},
};
},
};