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config.js
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config.js
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/**
* @fileoverview Tests for config object.
* @author Seth McLaughlin
*/
/* eslint no-undefined: "off" */
"use strict";
//------------------------------------------------------------------------------
// Requirements
//------------------------------------------------------------------------------
const assert = require("chai").assert,
path = require("path"),
fs = require("fs"),
os = require("os"),
Config = require("../../lib/config"),
Linter = require("../../lib/linter"),
environments = require("../../conf/environments"),
sinon = require("sinon"),
mockFs = require("mock-fs");
const DIRECTORY_CONFIG_HIERARCHY = require("../fixtures/config-hierarchy/file-structure.json");
const linter = new Linter();
require("shelljs/global");
const proxyquire = require("proxyquire").noCallThru().noPreserveCache();
/* global mkdir, rm, cp */
/**
* Creates a stubbed Config object that will bypass normal require() to load
* plugins by name from the objects specified.
* @param {Object} plugins The keys are the package names, values are plugin objects.
* @returns {Config} The stubbed instance of Config.
* @private
*/
function createStubbedConfigWithPlugins(plugins) {
// stub out plugins
const StubbedPlugins = proxyquire("../../lib/config/plugins", plugins);
// stub out config file to use stubbed plugins
const StubbedConfigFile = proxyquire("../../lib/config/config-file", {
"./plugins": StubbedPlugins
});
// stub out Config to use stub config file
return proxyquire("../../lib/config", {
"./config/config-file": StubbedConfigFile,
"./config/plugins": StubbedPlugins
});
}
/**
* Asserts that two configs are equal. This is necessary because assert.deepEqual()
* gets confused when properties are in different orders.
* @param {Object} actual The config object to check.
* @param {Object} expected What the config object should look like.
* @returns {void}
* @private
*/
function assertConfigsEqual(actual, expected) {
if (actual.env && expected.env) {
assert.deepEqual(actual.env, expected.env);
}
if (actual.parserOptions && expected.parserOptions) {
assert.deepEqual(actual.parserOptions, expected.parserOptions);
}
if (actual.globals && expected.globals) {
assert.deepEqual(actual.globals, expected.globals);
}
if (actual.rules && expected.rules) {
assert.deepEqual(actual.rules, expected.rules);
}
if (actual.plugins && expected.plugins) {
assert.deepEqual(actual.plugins, expected.plugins);
}
}
//------------------------------------------------------------------------------
// Tests
//------------------------------------------------------------------------------
describe("Config", () => {
let fixtureDir,
sandbox;
/**
* Returns the path inside of the fixture directory.
* @returns {string} The path inside the fixture directory.
* @private
*/
function getFixturePath() {
const args = Array.prototype.slice.call(arguments);
args.unshift("config-hierarchy");
args.unshift(fixtureDir);
return path.join.apply(path, args);
}
/**
* Mocks the current CWD path
* @param {string} fakeCWDPath - fake CWD path
* @returns {void}
* @private
*/
function mockCWDResponse(fakeCWDPath) {
sandbox.stub(process, "cwd")
.returns(fakeCWDPath);
}
/**
* Mocks the current user's home path
* @param {string} fakeUserHomePath - fake user's home path
* @returns {void}
* @private
*/
function mockOsHomedir(fakeUserHomePath) {
sandbox.stub(os, "homedir")
.returns(fakeUserHomePath);
}
// copy into clean area so as not to get "infected" by this project's .eslintrc files
before(() => {
fixtureDir = `${os.tmpdir()}/eslint/fixtures`;
mkdir("-p", fixtureDir);
cp("-r", "./tests/fixtures/config-hierarchy", fixtureDir);
});
beforeEach(() => {
sandbox = sinon.sandbox.create();
});
afterEach(() => {
sandbox.verifyAndRestore();
});
after(() => {
rm("-r", fixtureDir);
});
describe("new Config()", () => {
// https://github.com/eslint/eslint/issues/2380
it("should not modify baseConfig when format is specified", () => {
const customBaseConfig = { foo: "bar" },
configHelper = new Config({ baseConfig: customBaseConfig, format: "foo" }, linter);
// at one point, customBaseConfig.format would end up equal to "foo"...that's bad
assert.deepEqual(customBaseConfig, { foo: "bar" });
assert.equal(configHelper.options.format, "foo");
});
});
describe("findLocalConfigFiles()", () => {
/**
* Returns the path inside of the fixture directory.
* @returns {string} The path inside the fixture directory.
* @private
*/
function getFakeFixturePath() {
const args = Array.prototype.slice.call(arguments);
args.unshift("config-hierarchy");
args.unshift("fixtures");
args.unshift("eslint");
args.unshift(process.cwd());
return path.join.apply(path, args);
}
before(() => {
mockFs({
eslint: {
fixtures: {
"config-hierarchy": DIRECTORY_CONFIG_HIERARCHY
}
}
});
});
after(() => {
mockFs.restore();
});
it("should return the path when an .eslintrc file is found", () => {
const configHelper = new Config({}, linter),
expected = getFakeFixturePath("broken", ".eslintrc"),
actual = Array.from(
configHelper.findLocalConfigFiles(getFakeFixturePath("broken")));
assert.equal(actual[0], expected);
});
it("should return an empty array when an .eslintrc file is not found", () => {
const configHelper = new Config({}, linter),
actual = Array.from(
configHelper.findLocalConfigFiles(getFakeFixturePath()));
assert.isArray(actual);
assert.lengthOf(actual, 0);
});
it("should return package.json only when no other config files are found", () => {
const configHelper = new Config({}, linter),
expected0 = getFakeFixturePath("packagejson", "subdir", "package.json"),
expected1 = getFakeFixturePath("packagejson", ".eslintrc"),
actual = Array.from(
configHelper.findLocalConfigFiles(getFakeFixturePath("packagejson", "subdir")));
assert.equal(actual[0], expected0);
assert.equal(actual[1], expected1);
});
it("should return the only one config file even if there are multiple found", () => {
const configHelper = new Config({}, linter),
expected = getFakeFixturePath("broken", ".eslintrc"),
// The first element of the array is the .eslintrc in the same directory.
actual = Array.from(
configHelper.findLocalConfigFiles(getFakeFixturePath("broken")));
assert.equal(actual.length, 1);
assert.equal(actual, expected);
});
it("should return all possible files when multiple are found", () => {
const configHelper = new Config({}, linter),
expected = [
getFakeFixturePath("fileexts/subdir/subsubdir/", ".eslintrc.json"),
getFakeFixturePath("fileexts/subdir/", ".eslintrc.yml"),
getFakeFixturePath("fileexts", ".eslintrc.js")
],
actual = Array.from(
configHelper.findLocalConfigFiles(getFakeFixturePath("fileexts/subdir/subsubdir")));
assert.deepEqual(actual.length, expected.length);
});
it("should return an empty array when a package.json file is not found", () => {
const configHelper = new Config({}, linter),
actual = Array.from(configHelper.findLocalConfigFiles(getFakeFixturePath()));
assert.isArray(actual);
assert.lengthOf(actual, 0);
});
});
describe("getConfig()", () => {
it("should return the project config when called in current working directory", () => {
const configHelper = new Config({ cwd: process.cwd() }, linter),
actual = configHelper.getConfig();
assert.equal(actual.rules.strict[1], "global");
});
it("should not retain configs from previous directories when called multiple times", () => {
const firstpath = path.resolve(__dirname, "..", "fixtures", "configurations", "single-quotes", "subdir", ".eslintrc");
const secondpath = path.resolve(__dirname, "..", "fixtures", "configurations", "single-quotes", ".eslintrc");
const configHelper = new Config({ cwd: process.cwd() }, linter);
let config;
config = configHelper.getConfig(firstpath);
assert.equal(config.rules["no-new"], 0);
config = configHelper.getConfig(secondpath);
assert.equal(config.rules["no-new"], 1);
});
it("should throw an error when an invalid path is given", () => {
const configPath = path.resolve(__dirname, "..", "fixtures", "configurations", "foobaz", ".eslintrc");
const homePath = "does-not-exist";
mockOsHomedir(homePath);
const StubbedConfig = proxyquire("../../lib/config", {});
const configHelper = new StubbedConfig({ cwd: process.cwd() }, linter);
sandbox.stub(fs, "readdirSync").throws(new Error());
assert.throws(() => {
configHelper.getConfig(configPath);
}, "No ESLint configuration found.");
});
it("should throw error when a configuration file doesn't exist", () => {
const configPath = path.resolve(__dirname, "..", "fixtures", "configurations", ".eslintrc");
const configHelper = new Config({ cwd: process.cwd() }, linter);
sandbox.stub(fs, "readFileSync").throws(new Error());
assert.throws(() => {
configHelper.getConfig(configPath);
}, "Cannot read config file");
});
it("should throw error when a configuration file is not require-able", () => {
const configPath = ".eslintrc";
const configHelper = new Config({ cwd: process.cwd() }, linter);
sandbox.stub(fs, "readFileSync").throws(new Error());
assert.throws(() => {
configHelper.getConfig(configPath);
}, "Cannot read config file");
});
it("should cache config when the same directory is passed twice", () => {
const configPath = path.resolve(__dirname, "..", "fixtures", "configurations", "single-quotes", ".eslintrc");
const configHelper = new Config({ cwd: process.cwd() }, linter);
sandbox.spy(configHelper, "findLocalConfigFiles");
// If cached this should be called only once
configHelper.getConfig(configPath);
const callcount = configHelper.findLocalConfigFiles.callcount;
configHelper.getConfig(configPath);
assert.equal(configHelper.findLocalConfigFiles.callcount, callcount);
});
// make sure JS-style comments don't throw an error
it("should load the config file when there are JS-style comments in the text", () => {
const configPath = path.resolve(__dirname, "..", "fixtures", "configurations", "comments.json"),
configHelper = new Config({ configFile: configPath }, linter),
semi = configHelper.useSpecificConfig.rules.semi,
strict = configHelper.useSpecificConfig.rules.strict;
assert.equal(semi, 1);
assert.equal(strict, 0);
});
// make sure YAML files work correctly
it("should load the config file when a YAML file is used", () => {
const configPath = path.resolve(__dirname, "..", "fixtures", "configurations", "env-browser.yaml"),
configHelper = new Config({ configFile: configPath }, linter),
noAlert = configHelper.useSpecificConfig.rules["no-alert"],
noUndef = configHelper.useSpecificConfig.rules["no-undef"];
assert.equal(noAlert, 0);
assert.equal(noUndef, 2);
});
it("should contain the correct value for parser when a custom parser is specified", () => {
const configPath = path.resolve(__dirname, "../fixtures/configurations/parser/.eslintrc.json"),
configHelper = new Config({ cwd: process.cwd() }, linter),
config = configHelper.getConfig(configPath);
assert.equal(config.parser, path.resolve(path.dirname(configPath), "./custom.js"));
});
// Configuration hierarchy ---------------------------------------------
// https://github.com/eslint/eslint/issues/3915
it("should correctly merge environment settings", () => {
const configHelper = new Config({ useEslintrc: true, cwd: process.cwd() }, linter),
file = getFixturePath("envs", "sub", "foo.js"),
expected = {
rules: {},
env: {
browser: true,
node: false
},
globals: environments.browser.globals
},
actual = configHelper.getConfig(file);
assertConfigsEqual(actual, expected);
});
// Default configuration - blank
it("should return a blank config when using no .eslintrc", () => {
const configHelper = new Config({ useEslintrc: false }, linter),
file = getFixturePath("broken", "console-wrong-quotes.js"),
expected = {
rules: {},
globals: {},
env: {}
},
actual = configHelper.getConfig(file);
assertConfigsEqual(actual, expected);
});
it("should return a blank config when baseConfig is set to false and no .eslintrc", () => {
const configHelper = new Config({ baseConfig: false, useEslintrc: false }, linter),
file = getFixturePath("broken", "console-wrong-quotes.js"),
expected = {
rules: {},
globals: {},
env: {}
},
actual = configHelper.getConfig(file);
assertConfigsEqual(actual, expected);
});
// No default configuration
it("should return an empty config when not using .eslintrc", () => {
const configHelper = new Config({ useEslintrc: false }, linter),
file = getFixturePath("broken", "console-wrong-quotes.js"),
actual = configHelper.getConfig(file);
assertConfigsEqual(actual, {});
});
it("should return a modified config when baseConfig is set to an object and no .eslintrc", () => {
const configHelper = new Config({
baseConfig: {
env: {
node: true
},
rules: {
quotes: [2, "single"]
}
},
useEslintrc: false
}, linter),
file = getFixturePath("broken", "console-wrong-quotes.js"),
expected = {
env: {
node: true
},
rules: {
quotes: [2, "single"]
}
},
actual = configHelper.getConfig(file);
assertConfigsEqual(actual, expected);
});
it("should return a modified config without plugin rules enabled when baseConfig is set to an object with plugin and no .eslintrc", () => {
const customRule = require("../fixtures/rules/custom-rule");
const examplePluginName = "eslint-plugin-example";
const requireStubs = {};
requireStubs[examplePluginName] = {
rules: { "example-rule": customRule },
// rulesConfig support removed in 2.0.0, so this should have no effect
rulesConfig: { "example-rule": 1 }
};
const StubbedConfig = proxyquire("../../lib/config", requireStubs);
const configHelper = new StubbedConfig({
baseConfig: {
env: {
node: true
},
rules: {
quotes: [2, "single"]
},
plugins: [examplePluginName]
},
useEslintrc: false
}, linter),
file = getFixturePath("broken", "plugins", "console-wrong-quotes.js"),
expected = {
env: {
node: true
},
rules: {
quotes: [2, "single"]
}
},
actual = configHelper.getConfig(file);
assertConfigsEqual(actual, expected);
});
// Project configuration - second level .eslintrc
it("should merge configs when local .eslintrc overrides parent .eslintrc", () => {
const configHelper = new Config({ cwd: process.cwd() }, linter),
file = getFixturePath("broken", "subbroken", "console-wrong-quotes.js"),
expected = {
env: {
node: true
},
rules: {
"no-console": 1,
quotes: [2, "single"]
}
},
actual = configHelper.getConfig(file);
expected.env.node = true;
assertConfigsEqual(actual, expected);
});
// Project configuration - third level .eslintrc
it("should merge configs when local .eslintrc overrides parent and grandparent .eslintrc", () => {
const configHelper = new Config({ cwd: process.cwd() }, linter),
file = getFixturePath("broken", "subbroken", "subsubbroken", "console-wrong-quotes.js"),
expected = {
env: {
node: true
},
rules: {
"no-console": 0,
quotes: [1, "double"]
}
},
actual = configHelper.getConfig(file);
expected.env.node = true;
assertConfigsEqual(actual, expected);
});
// Project configuration - root set in second level .eslintrc
it("should not return or traverse configurations in parents of config with root:true", () => {
const configHelper = new Config({ cwd: process.cwd() }, linter),
file = getFixturePath("root-true", "parent", "root", "wrong-semi.js"),
expected = {
rules: {
semi: [2, "never"]
}
},
actual = configHelper.getConfig(file);
assertConfigsEqual(actual, expected);
});
// Project configuration - root set in second level .eslintrc
it("should return project config when called with a relative path from a subdir", () => {
const configHelper = new Config({ cwd: getFixturePath("root-true", "parent", "root", "subdir") }, linter),
dir = ".",
expected = {
rules: {
semi: [2, "never"]
}
},
actual = configHelper.getConfig(dir);
assertConfigsEqual(actual, expected);
});
// Command line configuration - --config with first level .eslintrc
it("should merge command line config when config file adds to local .eslintrc", () => {
const configHelper = new Config({
configFile: getFixturePath("broken", "add-conf.yaml"),
cwd: process.cwd()
}, linter),
file = getFixturePath("broken", "console-wrong-quotes.js"),
expected = {
env: {
node: true
},
rules: {
quotes: [2, "double"],
semi: [1, "never"]
}
},
actual = configHelper.getConfig(file);
expected.env.node = true;
assertConfigsEqual(actual, expected);
});
// Command line configuration - --config with first level .eslintrc
it("should merge command line config when config file overrides local .eslintrc", () => {
const configHelper = new Config({
configFile: getFixturePath("broken", "override-conf.yaml"),
cwd: process.cwd()
}, linter),
file = getFixturePath("broken", "console-wrong-quotes.js"),
expected = {
env: {
node: true
},
rules: {
quotes: [0, "double"]
}
},
actual = configHelper.getConfig(file);
expected.env.node = true;
assertConfigsEqual(actual, expected);
});
// Command line configuration - --config with second level .eslintrc
it("should merge command line config when config file adds to local and parent .eslintrc", () => {
const configHelper = new Config({
configFile: getFixturePath("broken", "add-conf.yaml"),
cwd: process.cwd()
}, linter),
file = getFixturePath("broken", "subbroken", "console-wrong-quotes.js"),
expected = {
env: {
node: true
},
rules: {
quotes: [2, "single"],
"no-console": 1,
semi: [1, "never"]
}
},
actual = configHelper.getConfig(file);
expected.env.node = true;
assertConfigsEqual(actual, expected);
});
// Command line configuration - --config with second level .eslintrc
it("should merge command line config when config file overrides local and parent .eslintrc", () => {
const configHelper = new Config({
configFile: getFixturePath("broken", "override-conf.yaml"),
cwd: process.cwd()
}, linter),
file = getFixturePath("broken", "subbroken", "console-wrong-quotes.js"),
expected = {
env: {
node: true
},
rules: {
quotes: [0, "single"],
"no-console": 1
}
},
actual = configHelper.getConfig(file);
expected.env.node = true;
assertConfigsEqual(actual, expected);
});
// Command line configuration - --rule with --config and first level .eslintrc
it("should merge command line config and rule when rule and config file overrides local .eslintrc", () => {
const configHelper = new Config({
configFile: getFixturePath("broken", "override-conf.yaml"),
rules: {
quotes: [1, "double"]
},
cwd: process.cwd()
}, linter),
file = getFixturePath("broken", "console-wrong-quotes.js"),
expected = {
env: {
node: true
},
rules: {
quotes: [1, "double"]
}
},
actual = configHelper.getConfig(file);
expected.env.node = true;
assertConfigsEqual(actual, expected);
});
// Command line configuration - --plugin
it("should merge command line plugin with local .eslintrc", () => {
// stub out Config to use stub config file
const StubbedConfig = createStubbedConfigWithPlugins({
"eslint-plugin-example": {},
"eslint-plugin-another-plugin": {}
});
const configHelper = new StubbedConfig({
plugins: ["another-plugin"],
cwd: process.cwd()
}, linter),
file = getFixturePath("broken", "plugins", "console-wrong-quotes.js"),
expected = {
plugins: [
"example",
"another-plugin"
]
},
actual = configHelper.getConfig(file);
assertConfigsEqual(actual, expected);
});
it("should merge multiple different config file formats", () => {
const configHelper = new Config({ cwd: process.cwd() }, linter),
file = getFixturePath("fileexts/subdir/subsubdir/foo.js"),
expected = {
env: {
browser: true
},
rules: {
semi: [2, "always"],
eqeqeq: 2
}
},
actual = configHelper.getConfig(file);
assertConfigsEqual(actual, expected);
});
it("should load user config globals", () => {
const configPath = path.resolve(__dirname, "..", "fixtures", "globals", "conf.yaml"),
configHelper = new Config({ configFile: configPath, useEslintrc: false }, linter);
const expected = {
globals: {
foo: true
}
};
const actual = configHelper.getConfig(configPath);
assertConfigsEqual(actual, expected);
});
it("should not load disabled environments", () => {
const configPath = path.resolve(__dirname, "..", "fixtures", "environments", "disable.yaml");
const configHelper = new Config({ configFile: configPath, useEslintrc: false }, linter);
const config = configHelper.getConfig(configPath);
assert.isUndefined(config.globals.window);
});
it("should error on fake environments", () => {
const configPath = path.resolve(__dirname, "..", "fixtures", "environments", "fake.yaml");
assert.throw(() => {
new Config({ configFile: configPath, useEslintrc: false, cwd: process.cwd() }, linter); // eslint-disable-line no-new
});
});
it("should gracefully handle empty files", () => {
const configPath = path.resolve(__dirname, "..", "fixtures", "configurations", "env-node.json"),
configHelper = new Config({ configFile: configPath, cwd: process.cwd() }, linter);
configHelper.getConfig(path.resolve(__dirname, "..", "fixtures", "configurations", "empty", "empty.json"));
});
// Meaningful stack-traces
it("should include references to where an `extends` configuration was loaded from", () => {
const configPath = path.resolve(__dirname, "..", "fixtures", "config-extends", "error.json");
assert.throws(() => {
const configHelper = new Config({ useEslintrc: false, configFile: configPath }, linter);
configHelper.getConfig(configPath);
}, /Referenced from:.*?error\.json/);
});
// Keep order with the last array element taking highest precedence
it("should make the last element in an array take the highest precedence", () => {
const configPath = path.resolve(__dirname, "..", "fixtures", "config-extends", "array", ".eslintrc"),
configHelper = new Config({ useEslintrc: false, configFile: configPath }, linter),
expected = {
rules: { "no-empty": 1, "comma-dangle": 2, "no-console": 2 },
env: { browser: false, node: true, es6: true }
},
actual = configHelper.getConfig(configPath);
assertConfigsEqual(actual, expected);
});
describe("with env in a child configuration file", () => {
it("should not overwrite parserOptions of the parent with env of the child", () => {
const config = new Config({ cwd: process.cwd() }, linter);
const targetPath = getFixturePath("overwrite-ecmaFeatures", "child", "foo.js");
const expected = {
rules: {},
env: { commonjs: true },
parserOptions: { ecmaFeatures: { globalReturn: false } }
};
const actual = config.getConfig(targetPath);
assertConfigsEqual(actual, expected);
});
});
describe("personal config file within home directory", () => {
/**
* Returns the path inside of the fixture directory.
* @returns {string} The path inside the fixture directory.
* @private
*/
function getFakeFixturePath() {
const args = Array.prototype.slice.call(arguments);
args.unshift("config-hierarchy");
args.unshift("fixtures");
args.unshift("eslint");
args.unshift(process.cwd());
return path.join.apply(path, args);
}
/**
* Mocks the file system for personal-config files
* @returns {undefined}
* @private
*/
function mockPersonalConfigFileSystem() {
mockFs({
eslint: {
fixtures: {
"config-hierarchy": DIRECTORY_CONFIG_HIERARCHY
}
}
});
}
afterEach(() => {
mockFs.restore();
});
it("should load the personal config if no local config was found", () => {
const projectPath = getFakeFixturePath("personal-config", "project-without-config"),
homePath = getFakeFixturePath("personal-config", "home-folder"),
filePath = getFakeFixturePath("personal-config", "project-without-config", "foo.js");
mockOsHomedir(homePath);
const StubbedConfig = proxyquire("../../lib/config", {});
mockPersonalConfigFileSystem();
mockCWDResponse(projectPath);
const config = new StubbedConfig({ cwd: process.cwd() }, linter),
actual = config.getConfig(filePath),
expected = {
parserOptions: {},
env: {},
globals: {},
parser: undefined,
rules: {
"home-folder-rule": 2
}
};
assert.deepEqual(actual, expected);
});
it("should ignore the personal config if a local config was found", () => {
const projectPath = getFakeFixturePath("personal-config", "home-folder", "project"),
homePath = getFakeFixturePath("personal-config", "home-folder"),
filePath = getFakeFixturePath("personal-config", "home-folder", "project", "foo.js");
mockOsHomedir(homePath);
const StubbedConfig = proxyquire("../../lib/config", {});
mockPersonalConfigFileSystem();
mockCWDResponse(projectPath);
const config = new StubbedConfig({ cwd: process.cwd() }, linter),
actual = config.getConfig(filePath),
expected = {
parserOptions: {},
env: {},
globals: {},
parser: undefined,
rules: {
"project-level-rule": 2
}
};
assert.deepEqual(actual, expected);
});
it("should ignore the personal config if config is passed through cli", () => {
const configPath = getFakeFixturePath("quotes-error.json");
const projectPath = getFakeFixturePath("personal-config", "project-without-config"),
homePath = getFakeFixturePath("personal-config", "home-folder"),
filePath = getFakeFixturePath("personal-config", "project-without-config", "foo.js");
mockOsHomedir(homePath);
const StubbedConfig = proxyquire("../../lib/config", {});
mockPersonalConfigFileSystem();
mockCWDResponse(projectPath);
const config = new StubbedConfig({ configFile: configPath, cwd: process.cwd() }, linter),
actual = config.getConfig(filePath),
expected = {
parserOptions: {},
env: {},
globals: {},
parser: undefined,
rules: {
quotes: [2, "double"]
}
};
assert.deepEqual(actual, expected);
});
it("should still load the project config if the current working directory is the same as the home folder", () => {
const projectPath = getFakeFixturePath("personal-config", "project-with-config"),
filePath = getFakeFixturePath("personal-config", "project-with-config", "subfolder", "foo.js");
mockOsHomedir(projectPath);
const StubbedConfig = proxyquire("../../lib/config", {});
mockPersonalConfigFileSystem();
mockCWDResponse(projectPath);
const config = new StubbedConfig({ cwd: process.cwd() }, linter),
actual = config.getConfig(filePath),
expected = {
parserOptions: {},
env: {},
globals: {},
parser: undefined,
rules: {
"project-level-rule": 2,
"subfolder-level-rule": 2
}
};
assert.deepEqual(actual, expected);
});
});
describe("when no local or personal config is found", () => {
/**
* Returns the path inside of the fixture directory.
* @returns {string} The path inside the fixture directory.
* @private
*/
function getFakeFixturePath() {
const args = Array.prototype.slice.call(arguments);
args.unshift("config-hierarchy");
args.unshift("fixtures");
args.unshift("eslint");
args.unshift(process.cwd());
return path.join.apply(path, args);
}
/**
* Mocks the file system for personal-config files
* @returns {undefined}
* @private
*/
function mockPersonalConfigFileSystem() {
mockFs({
eslint: {
fixtures: {
"config-hierarchy": DIRECTORY_CONFIG_HIERARCHY
}
}
});
}
afterEach(() => {
mockFs.restore();
});
it("should throw an error if no local config and no personal config was found", () => {
const projectPath = getFakeFixturePath("personal-config", "project-without-config"),
homePath = getFakeFixturePath("personal-config", "folder-does-not-exist"),
filePath = getFakeFixturePath("personal-config", "project-without-config", "foo.js");
mockOsHomedir(homePath);
const StubbedConfig = proxyquire("../../lib/config", {});
mockPersonalConfigFileSystem();
mockCWDResponse(projectPath);
const config = new StubbedConfig({ cwd: process.cwd() }, linter);
assert.throws(() => {
config.getConfig(filePath);
}, "No ESLint configuration found");