cli.js

/**
 * tests that require fully booting up ESLint
 */
import path from 'path';

import { expect } from 'chai';
import { CLIEngine, ESLint } from 'eslint';
import eslintPkg from 'eslint/package.json';
import semver from 'semver';
import * as importPlugin from '../../src/index';

describe('CLI regression tests', function () {
  describe('issue #210', function () {
    let eslint;
    let cli;
    before(function () {
      if (ESLint) {
        eslint = new ESLint({
          useEslintrc: false,
          overrideConfigFile: './tests/files/issue210.config.js',
          rulePaths: ['./src/rules'],
          overrideConfig: {
            rules: {
              'named': 2,
            },
          },
          plugins: { 'eslint-plugin-import': importPlugin },
        });
      } else {
        cli = new CLIEngine({
          useEslintrc: false,
          configFile: './tests/files/issue210.config.js',
          rulePaths: ['./src/rules'],
          rules: {
            'named': 2,
          },
        });
        cli.addPlugin('eslint-plugin-import', importPlugin);
      }
    });
    it("doesn't throw an error on gratuitous, erroneous self-reference", function () {
      if (eslint) {
        return eslint.lintFiles(['./tests/files/issue210.js'])
          .catch(() => expect.fail());
      } else {
        expect(() => cli.executeOnFiles(['./tests/files/issue210.js'])).not.to.throw();
      }
    });
  });

  describe('issue #1645', function () {
    let eslint;
    let cli;
    beforeEach(function () {
      if (semver.satisfies(eslintPkg.version, '< 6')) {
        this.skip();
      } else {
        if (ESLint) {
          eslint = new ESLint({
            useEslintrc: false,
            overrideConfigFile: './tests/files/just-json-files/.eslintrc.json',
            rulePaths: ['./src/rules'],
            ignore: false,
            plugins: { 'eslint-plugin-import': importPlugin },
          });
        } else {
          cli = new CLIEngine({
            useEslintrc: false,
            configFile: './tests/files/just-json-files/.eslintrc.json',
            rulePaths: ['./src/rules'],
            ignore: false,
          });
          cli.addPlugin('eslint-plugin-import', importPlugin);
        }
      }
    });

    it('throws an error on invalid JSON', () => {
      const invalidJSON = './tests/files/just-json-files/invalid.json';
      if (eslint) {
        return eslint.lintFiles([invalidJSON]).then(results => {
          expect(results).to.eql(
            [
              {
                filePath: path.resolve(invalidJSON),
                messages: [
                  {
                    column: 2,
                    endColumn: 3,
                    endLine: 1,
                    line: 1,
                    message: 'Expected a JSON object, array or literal.',
                    nodeType: results[0].messages[0].nodeType, // we don't care about this one
                    ruleId: 'json/*',
                    severity: 2,
                    source: results[0].messages[0].source, // NewLine-characters might differ depending on git-settings
                  },
                ],
                errorCount: 1,
                ...(semver.satisfies(eslintPkg.version, '>= 7.32 || ^8.0.0') && {
                  fatalErrorCount: 0,
                }),
                warningCount: 0,
                fixableErrorCount: 0,
                fixableWarningCount: 0,
                source: results[0].source, // NewLine-characters might differ depending on git-settings
                ...(semver.satisfies(eslintPkg.version, '>= 8.8') && {
                  suppressedMessages: [],
                }),
                usedDeprecatedRules: results[0].usedDeprecatedRules, // we don't care about this one
              },
            ],
          );
        });
      } else {
        const results = cli.executeOnFiles([invalidJSON]);
        expect(results).to.eql({
          results: [
            {
              filePath: path.resolve(invalidJSON),
              messages: [
                {
                  column: 2,
                  endColumn: 3,
                  endLine: 1,
                  line: 1,
                  message: 'Expected a JSON object, array or literal.',
                  nodeType: results.results[0].messages[0].nodeType, // we don't care about this one
                  ruleId: 'json/*',
                  severity: 2,
                  source: results.results[0].messages[0].source, // NewLine-characters might differ depending on git-settings
                },
              ],
              errorCount: 1,
              warningCount: 0,
              fixableErrorCount: 0,
              fixableWarningCount: 0,
              source: results.results[0].source, // NewLine-characters might differ depending on git-settings
            },
          ],
          errorCount: 1,
          warningCount: 0,
          fixableErrorCount: 0,
          fixableWarningCount: 0,
          usedDeprecatedRules: results.usedDeprecatedRules, // we don't care about this one
        });
      }
    });
  });
});