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tools: auto fix custom eslint rule for lowercase-name-for-primitive.js #17715

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tools: auto fix custom eslint rule for lowercase-name-for-primitive.js #17715

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tools: auto fix custom eslint rule for lowercase-name-for-primitive.js
shobhitchittora Dec 17, 2017
b2d1f5b
tools: auto fix custom eslint rule for lowercase-name-for-primitive.js
shobhitchittora Dec 18, 2017
42009c2
tools: auto fix custom eslint rule for lowercase-name-for-primitive.js
shobhitchittora Dec 19, 2017
1799ec3
tools: auto fix custom eslint rule for lowercase-name-for-primitive.js
shobhitchittora Dec 25, 2017
a23ca88
tools: auto fix custom eslint rule for lowercase-name-for-primitive.js
shobhitchittora Dec 26, 2017
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10 changes: 7 additions & 3 deletions test/parallel/test-eslint-lowercase-name-for-primitive.js
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Original file line number Diff line number Diff line change
Expand Up @@ -23,19 +23,23 @@ new RuleTester().run('lowercase-name-for-primitive', rule, {
invalid: [
{
code: 'new errors.TypeError("ERR_INVALID_ARG_TYPE", "a", "Number")',
errors: [{ message: 'primitive should use lowercase: Number' }]
errors: [{ message: 'primitive should use lowercase: Number' }],
output: 'new errors.TypeError("ERR_INVALID_ARG_TYPE", "a", "number")'
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CI failed due to a small problem:
The input code and expected output are using double quotes ", but the autofixer will change it to single quotes, which makes the actual output cannot match the expected output.

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@shobhitchittora Could you change these double quotes in code and output to using single quotes?

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@shobhitchittora shobhitchittora Dec 25, 2017 •
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@starkwang pushed a fix. How did you check the problem in Jenkins that the output is not correct?

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I modified some codes in eslint (eslint/lib/testers/rule-tester.js) to expose the error message.
You can see eslint/eslint#9769 for more detail. 😉

},
{
code: 'new errors.TypeError("ERR_INVALID_ARG_TYPE", "a", "STRING")',
errors: [{ message: 'primitive should use lowercase: STRING' }]
errors: [{ message: 'primitive should use lowercase: STRING' }],
output: 'new errors.TypeError("ERR_INVALID_ARG_TYPE", "a", "string")'
},
{
code: 'new errors.TypeError("ERR_INVALID_ARG_TYPE", "a",' +
'["String", "Number"])',
errors: [
{ message: 'primitive should use lowercase: String' },
{ message: 'primitive should use lowercase: Number' }
]
],
output: 'new errors.TypeError("ERR_INVALID_ARG_TYPE", "a",' +
'["string", "number"])'
}
]
});
21 changes: 16 additions & 5 deletions tools/eslint-rules/lowercase-name-for-primitive.js
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Original file line number Diff line number Diff line change
Expand Up @@ -22,22 +22,33 @@ module.exports = function(context) {

switch (names.type) {
case 'Literal':
checkName(node, names.value);
checkName(names);
break;
case 'ArrayExpression':
names.elements.forEach((name) => {
checkName(node, name.value);
checkName(name);
});
break;
}
}

function checkName(node, name) {
function checkName(node) {
const name = node.value;
const lowercaseName = name.toLowerCase();
if (primitives.includes(lowercaseName) && !primitives.includes(name)) {
if (name !== lowercaseName && primitives.includes(lowercaseName)) {
const msg = `primitive should use lowercase: ${name}`;
context.report(node, msg);
context.report({
node,
message: msg,
fix: (fixer) => {
return fixer.replaceText(
node,
`'${lowercaseName}'`
);
}
});
}

}

return {
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