Skip to content

tools: auto fix custom eslint rule for prefer-assert-methods.js#16652

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Closed
shobhitchittora wants to merge 2 commits into from
Closed

tools: auto fix custom eslint rule for prefer-assert-methods.js #16652

Show file tree
Hide file tree
Changes from all commits
Commits
Show all changes
2 commits
Select commit Hold shift + click to select a range
16e64b5
tools: auto fix custom eslint rule for prefer-assert-methods.js
shobhitchittora Oct 31, 2017
0ee62da
updated as per new implementation
shobhitchittora Dec 15, 2017
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
37 changes: 26 additions & 11 deletions test/parallel/test-eslint-prefer-assert-methods.js
View file
Open in desktop
Original file line numberDiff line numberDiff line change
Expand Up@@ -7,31 +7,46 @@ const rule = require('../../tools/eslint-rules/prefer-assert-methods');

new RuleTester().run('prefer-assert-methods', rule, {
valid: [
'assert.strictEqual(foo, bar)',
'assert(foo === bar && baz)'
'assert.strictEqual(foo, bar);',
'assert(foo === bar && baz);',
'assert.notStrictEqual(foo, bar);',
'assert(foo !== bar && baz);',
'assert.equal(foo, bar);',
'assert(foo == bar && baz);',
'assert.notEqual(foo, bar);',
'assert(foo != bar && baz);',
'assert.ok(foo);',
'assert.ok(foo != bar);',

@apapirovskiapapirovskiDec 10, 2017•
edited
Loading

Copy link
Copy Markdown
Contributor

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

I could be wrong but I think the idea was that assert(foo != bar) should yield the same as assert.ok(foo != bar). Since the former is an alias for the latter. That is, they should both report an error.

(I realize that might be modifying the current rule and is somewhat outside of the scope of the original work.)

@BridgeARBridgeARDec 10, 2017

Copy link
Copy Markdown
Member

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

That would indeed be nice but I guess it is best to keep that for a separate PR and I am actually about to improve the assert message for cases like that in #17581

'assert.ok(foo === bar && baz);'
],
invalid: [
{
code: 'assert(foo == bar)',
errors: [{ message: "'assert.equal' should be used instead of '=='" }]
code: 'assert(foo == bar);',
errors: [{
message: "'assert.equal' should be used instead of '=='"
}],
output: 'assert.equal(foo, bar);'
},
{
code: 'assert(foo === bar)',
code: 'assert(foo === bar);',
errors: [{
message: "'assert.strictEqual' should be used instead of '==='"
}]
}],
output: 'assert.strictEqual(foo, bar);'
},
{
code: 'assert(foo != bar)',
code: 'assert(foo != bar);',
errors: [{
message: "'assert.notEqual' should be used instead of '!='"
}]
}],
output: 'assert.notEqual(foo, bar);'
},
{
code: 'assert(foo !== bar)',
code: 'assert(foo !== bar);',
errors: [{
message: "'assert.notStrictEqual' should be used instead of '!=='"
}]
},
}],
output: 'assert.notStrictEqual(foo, bar);'
}
]
});
18 changes: 17 additions & 1 deletion tools/eslint-rules/prefer-assert-methods.js
View file
Open in desktop
Original file line numberDiff line numberDiff line change
@@ -1,3 +1,7 @@
/**
* @fileoverview Prohibit the use of assert operators ( ===, !==, ==, != )
*/

'use strict';

const astSelector = 'ExpressionStatement[expression.type="CallExpression"]' +
Expand All@@ -21,7 +25,19 @@ module.exports = function(context) {
const arg = node.expression.arguments[0];
const assertMethod = preferedAssertMethod[arg.operator];
if (assertMethod) {
context.report(node, parseError(assertMethod, arg.operator));
context.report({
node,
message: parseError(assertMethod, arg.operator),
fix: (fixer) => {
const sourceCode = context.getSourceCode();
const left = sourceCode.getText(arg.left);
const right = sourceCode.getText(arg.right);
return fixer.replaceText(
node,
`assert.${assertMethod}(${left}, ${right});`
);
}
});
}
}
};
Expand Down