Add eslint 7 to CI

.travis.yml

@@ -10,6 +10,7 @@ node_js:
 os: linux
 
 env:
+  - ESLINT_VERSION=^7.0.0-0
   - ESLINT_VERSION=6
   - ESLINT_VERSION=5
   - ESLINT_VERSION=4
@@ -65,8 +66,14 @@ matrix:
     env: ESLINT_VERSION=5
   - node_js: '4'
     env: ESLINT_VERSION=6
+  - node_js: '4'
+    env: ESLINT_VERSION=^7.0.0-0
   - node_js: '6'
     env: ESLINT_VERSION=6
+  - node_js: '6'
+    env: ESLINT_VERSION=^7.0.0-0
+  - node_js: '8'
+    env: ESLINT_VERSION=^7.0.0-0
 
   fast_finish: true
   allow_failures:

src/rules/dynamic-import-chunkname.js

@@ -42,7 +42,9 @@ module.exports = {
 
         const sourceCode = context.getSourceCode()
         const arg = node.arguments[0]
-        const leadingComments = sourceCode.getComments(arg).leading
+        const leadingComments = sourceCode.getCommentsBefore
+          ? sourceCode.getCommentsBefore(arg) // This method is available in ESLint >= 4.
+          : sourceCode.getComments(arg).leading // This method is deprecated in ESLint 7.
 
         if (!leadingComments || leadingComments.length === 0) {
           context.report({

tests/src/rules/exports-last.js

@@ -6,7 +6,6 @@ import rule from 'rules/exports-last'
 const ruleTester = new RuleTester()
 
 const error = type => ({
-  ruleId: 'exports-last',
   message: 'Export statements should appear at the end of the file',
   type,
 })

tests/src/rules/no-absolute-path.js

@@ -6,7 +6,6 @@ const ruleTester = new RuleTester()
     , rule = require('rules/no-absolute-path')
 
 const error = {
-  ruleId: 'no-absolute-path',
   message: 'Do not import modules using an absolute path',
 }
 

tests/src/rules/no-cycle.js

@@ -5,7 +5,7 @@ import { RuleTester } from 'eslint'
 const ruleTester = new RuleTester()
     , rule = require('rules/no-cycle')
 
-const error = message => ({ ruleId: 'no-cycle', message })
+const error = message => ({ message })
 
 const test = def => _test(Object.assign(def, {
   filename: testFilePath('./cycles/depth-zero.js'),

tests/src/rules/no-default-export.js

@@ -89,7 +89,7 @@ ruleTester.run('no-default-export', rule, {
     test({
       code: 'export default function bar() {};',
       errors: [{
-        ruleId: 'ExportDefaultDeclaration',
+        type: 'ExportDefaultDeclaration',
         message: 'Prefer named exports.',
       }],
     }),
@@ -98,14 +98,14 @@ ruleTester.run('no-default-export', rule, {
         export const foo = 'foo';
         export default bar;`,
       errors: [{
-        ruleId: 'ExportDefaultDeclaration',
+        type: 'ExportDefaultDeclaration',
         message: 'Prefer named exports.',
       }],
     }),
     test({
       code: 'let foo; export { foo as default }',
       errors: [{
-        ruleId: 'ExportNamedDeclaration',
+        type: 'ExportNamedDeclaration',
         message: 'Do not alias `foo` as `default`. Just export `foo` itself ' +
           'instead.',
       }],
@@ -114,7 +114,7 @@ ruleTester.run('no-default-export', rule, {
       code: 'export default from "foo.js"',
       parser: require.resolve('babel-eslint'),
       errors: [{
-        ruleId: 'ExportNamedDeclaration',
+        type: 'ExportNamedDeclaration',
         message: 'Prefer named exports.',
       }],
     }),

tests/src/rules/no-dynamic-require.js

@@ -6,7 +6,6 @@ const ruleTester = new RuleTester()
     , rule = require('rules/no-dynamic-require')
 
 const error = {
-  ruleId: 'no-dynamic-require',
   message: 'Calls to require() should use string literals',
 }
 

tests/src/rules/no-extraneous-dependencies.js

@@ -126,7 +126,6 @@ ruleTester.run('no-extraneous-dependencies', rule, {
       filename: path.join(packageDirMonoRepoRoot, 'foo.js'),
       options: [{packageDir: packageDirMonoRepoRoot }],
       errors: [{
-        ruleId: 'no-extraneous-dependencies',
         message: '\'not-a-dependency\' should be listed in the project\'s dependencies. Run \'npm i -S not-a-dependency\' to add it',
       }],
     }),
@@ -135,67 +134,58 @@ ruleTester.run('no-extraneous-dependencies', rule, {
       filename: path.join(packageDirMonoRepoWithNested, 'foo.js'),
       options: [{packageDir: packageDirMonoRepoRoot}],
       errors: [{
-        ruleId: 'no-extraneous-dependencies',
         message: '\'not-a-dependency\' should be listed in the project\'s dependencies. Run \'npm i -S not-a-dependency\' to add it',
       }],
     }),
     test({
       code: 'import "not-a-dependency"',
       options: [{packageDir: packageDirMonoRepoRoot}],
       errors: [{
-        ruleId: 'no-extraneous-dependencies',
         message: '\'not-a-dependency\' should be listed in the project\'s dependencies. Run \'npm i -S not-a-dependency\' to add it',
       }],
     }),
     test({
       code: 'import "not-a-dependency"',
       errors: [{
-        ruleId: 'no-extraneous-dependencies',
         message: '\'not-a-dependency\' should be listed in the project\'s dependencies. Run \'npm i -S not-a-dependency\' to add it',
       }],
     }),
     test({
       code: 'var donthaveit = require("@org/not-a-dependency")',
       errors: [{
-        ruleId: 'no-extraneous-dependencies',
         message: '\'@org/not-a-dependency\' should be listed in the project\'s dependencies. Run \'npm i -S @org/not-a-dependency\' to add it',
       }],
     }),
     test({
       code: 'var donthaveit = require("@org/not-a-dependency/foo")',
       errors: [{
-        ruleId: 'no-extraneous-dependencies',
         message: '\'@org/not-a-dependency\' should be listed in the project\'s dependencies. Run \'npm i -S @org/not-a-dependency\' to add it',
       }],
     }),
     test({
       code: 'import "eslint"',
       options: [{devDependencies: false, peerDependencies: false}],
       errors: [{
-        ruleId: 'no-extraneous-dependencies',
         message: '\'eslint\' should be listed in the project\'s dependencies, not devDependencies.',
       }],
     }),
     test({
       code: 'import "lodash.isarray"',
       options: [{optionalDependencies: false}],
       errors: [{
-        ruleId: 'no-extraneous-dependencies',
         message: '\'lodash.isarray\' should be listed in the project\'s dependencies, not optionalDependencies.',
       }],
     }),
     test({
       code: 'var foo = require("not-a-dependency")',
       errors: [{
-        ruleId: 'no-extraneous-dependencies',
         message: '\'not-a-dependency\' should be listed in the project\'s dependencies. Run \'npm i -S not-a-dependency\' to add it',
       }],
     }),
     test({
       code: 'var glob = require("glob")',
       options: [{devDependencies: false}],
       errors: [{
-        ruleId: 'no-extraneous-dependencies',
         message: '\'glob\' should be listed in the project\'s dependencies, not devDependencies.',
       }],
     }),
@@ -204,7 +194,6 @@ ruleTester.run('no-extraneous-dependencies', rule, {
       options: [{devDependencies: ['*.test.js']}],
       filename: 'foo.tes.js',
       errors: [{
-        ruleId: 'no-extraneous-dependencies',
         message: '\'chai\' should be listed in the project\'s dependencies, not devDependencies.',
       }],
     }),
@@ -213,7 +202,6 @@ ruleTester.run('no-extraneous-dependencies', rule, {
       options: [{devDependencies: ['*.test.js']}],
       filename: path.join(process.cwd(), 'foo.tes.js'),
       errors: [{
-        ruleId: 'no-extraneous-dependencies',
         message: '\'chai\' should be listed in the project\'s dependencies, not devDependencies.',
       }],
     }),
@@ -222,7 +210,6 @@ ruleTester.run('no-extraneous-dependencies', rule, {
       options: [{devDependencies: ['*.test.js', '*.spec.js']}],
       filename: 'foo.tes.js',
       errors: [{
-        ruleId: 'no-extraneous-dependencies',
         message: '\'chai\' should be listed in the project\'s dependencies, not devDependencies.',
       }],
     }),
@@ -231,39 +218,34 @@ ruleTester.run('no-extraneous-dependencies', rule, {
       options: [{devDependencies: ['*.test.js', '*.spec.js']}],
       filename: path.join(process.cwd(), 'foo.tes.js'),
       errors: [{
-        ruleId: 'no-extraneous-dependencies',
         message: '\'chai\' should be listed in the project\'s dependencies, not devDependencies.',
       }],
     }),
     test({
       code: 'var eslint = require("lodash.isarray")',
       options: [{optionalDependencies: false}],
       errors: [{
-        ruleId: 'no-extraneous-dependencies',
         message: '\'lodash.isarray\' should be listed in the project\'s dependencies, not optionalDependencies.',
       }],
     }),
     test({
       code: 'import "not-a-dependency"',
       options: [{packageDir: path.join(__dirname, '../../../')}],
       errors: [{
-        ruleId: 'no-extraneous-dependencies',
         message: '\'not-a-dependency\' should be listed in the project\'s dependencies. Run \'npm i -S not-a-dependency\' to add it',
       }],
     }),
     test({
       code: 'import "bar"',
       options: [{packageDir: path.join(__dirname, './doesn-exist/')}],
       errors: [{
-        ruleId: 'no-extraneous-dependencies',
         message: 'The package.json file could not be found.',
       }],
     }),
     test({
       code: 'import foo from "foo"',
       options: [{packageDir: packageDirWithSyntaxError}],
       errors: [{
-        ruleId: 'no-extraneous-dependencies',
         message: 'The package.json file could not be parsed: ' + packageFileWithSyntaxErrorMessage,
       }],
     }),
@@ -272,15 +254,13 @@ ruleTester.run('no-extraneous-dependencies', rule, {
       filename: path.join(packageDirMonoRepoWithNested, 'foo.js'),
       options: [{packageDir: packageDirMonoRepoWithNested}],
       errors: [{
-        ruleId: 'no-extraneous-dependencies',
         message: "'left-pad' should be listed in the project's dependencies. Run 'npm i -S left-pad' to add it",
       }],
     }),
     test({
       code: 'import react from "react";',
       filename: path.join(packageDirMonoRepoRoot, 'foo.js'),
       errors: [{
-        ruleId: 'no-extraneous-dependencies',
         message: "'react' should be listed in the project's dependencies. Run 'npm i -S react' to add it",
       }],
     }),
@@ -289,7 +269,6 @@ ruleTester.run('no-extraneous-dependencies', rule, {
       filename: path.join(packageDirMonoRepoWithNested, 'foo.js'),
       options: [{packageDir: packageDirMonoRepoRoot}],
       errors: [{
-        ruleId: 'no-extraneous-dependencies',
         message: "'react' should be listed in the project's dependencies. Run 'npm i -S react' to add it",
       }],
     }),
@@ -298,7 +277,6 @@ ruleTester.run('no-extraneous-dependencies', rule, {
       filename: path.join(packageDirWithEmpty, 'index.js'),
       options: [{packageDir: packageDirWithEmpty}],
       errors: [{
-        ruleId: 'no-extraneous-dependencies',
         message: "'react' should be listed in the project's dependencies. Run 'npm i -S react' to add it",
       }],
     }),
@@ -319,14 +297,12 @@ ruleTester.run('no-extraneous-dependencies', rule, {
     test({
       code: 'export { foo } from "not-a-dependency";',
       errors: [{
-        ruleId: 'no-extraneous-dependencies',
         message: '\'not-a-dependency\' should be listed in the project\'s dependencies. Run \'npm i -S not-a-dependency\' to add it',
       }],
     }),
     test({
       code: 'export * from "not-a-dependency";',
       errors: [{
-        ruleId: 'no-extraneous-dependencies',
         message: '\'not-a-dependency\' should be listed in the project\'s dependencies. Run \'npm i -S not-a-dependency\' to add it',
       }],
     }),