Add auto-fix of misspelled 'falsey' to 'falsy'

fix avajs#190

Author: Guillaume Martigny

rules/use-t-well.js

@@ -12,13 +12,16 @@ const isCallExpression = node =>
 const getMemberStats = members => {
 	const initial = {
 		skip: [],
+		falsey: [],
 		method: [],
 		other: []
 	};
 
 	return members.reduce((res, member) => {
 		if (member === 'skip') {
 			res.skip.push(member);
+		} else if (member === 'falsey') {
+			res.falsey.push(member);
 		} else if (isMethod(member)) {
 			res.method.push(member);
 		} else {
@@ -81,6 +84,14 @@ const create = context => {
 						node,
 						message: 'Too many chained uses of `skip`.'
 					});
+				} else if (stats.falsey.length > 0) {
+					context.report({
+						node,
+						message: 'Misspelled `falsy` to `falsey`.',
+						fix: fixer => {
+							return fixer.replaceTextRange(node.property.range, 'falsy');
+						}
+					});
 				} else if (stats.method.length > 1) {
 					context.report({
 						node,
@@ -107,6 +118,7 @@ module.exports = {
 	meta: {
 		docs: {
 			url: util.getDocsUrl(__filename)
-		}
+		},
+		fixable: 'code'
 	}
 };

test/use-t-well.js

@@ -114,6 +114,11 @@ ruleTester.run('use-t-well', rule, {
 		{
 			code: testCase('t.deepEqual.skip.skip(a, a);'),
 			errors: [error('Too many chained uses of `skip`.')]
+		},
+		{
+			code: testCase('t.falsey(a);'),
+			output: testCase('t.falsy(a);'),
+			errors: [error('Misspelled `falsy` to `falsey`.')]
 		}
 	]
 });