webpack/test/Errors.test.js

Packs CommonJs/AMD modules for the browser. Allows to split your codebase into multiple bundles, which can be loaded on demand. Support loaders to preprocess files, i.e. json, jade, coffee, css, less, ... and your custom stuff.

var should = require("should");
var path = require("path");

var webpack = require("../lib/webpack");

var base = path.join(__dirname, "fixtures", "errors");

describe("Errors", function() {
	function getErrors(options, callback) {
		options.context = base;
		var c = webpack(options);
		var files = {};
		c.outputFileSystem = {
			join: path.join.bind(path),
			mkdirp: function(path, callback) {
				callback();
			},
			writeFile: function(name, content, callback) {
				files[name] = content.toString("utf-8");
				callback();
			}
		};
		c.run(function(err, stats) {
			if(err) throw err;
			should.strictEqual(typeof stats, "object");
			stats = stats.toJson({ errorDetails: false });
			should.strictEqual(typeof stats, "object");
			stats.should.have.property("errors");
			stats.should.have.property("warnings");
			Array.isArray(stats.errors).should.be.ok;
			Array.isArray(stats.warnings).should.be.ok;
			callback(stats.errors, stats.warnings);
		});
	}
	it("should throw an error if file doesn't exist", function(done) {
		getErrors({
			entry: "./missingFile"
		}, function(errors, warnings) {
			errors.length.should.be.eql(2);
			warnings.length.should.be.eql(0);
			errors.sort();
			var lines = errors[0].split("\n");
			lines[0].should.match(/missingFile.js/);
			lines[1].should.match(/^Module not found/);
			lines[1].should.match(/\.\/dir\/missing2/);
			lines[2].should.match(/missingFile.js 12:9/);
			var lines = errors[1].split("\n");
			lines[0].should.match(/missingFile.js/);
			lines[1].should.match(/^Module not found/);
			lines[1].should.match(/\.\/missing/);
			lines[2].should.match(/missingFile.js 4:0/);
			done();
		});
	});
	it("should report require.extensions as unsupported", function(done) {
		getErrors({
			entry: "./require.extensions"
		}, function(errors, warnings) {
			errors.length.should.be.eql(0);
			warnings.length.should.be.eql(1);
			var lines = warnings[0].split("\n");
			lines[0].should.match(/require.extensions\.js/);
			lines[1].should.match(/require.extensions is not supported by webpack/);
			done();
		});
	});
	it("should throw an error if you try to require an entry point", function(done) {
		getErrors({
			entry: {
				a: "./require-entry-point",
				b: "./entry-point",
				c: ["./entry-point2"]
			}
		}, function(errors, warnings) {
			errors.length.should.be.eql(2);
			warnings.length.should.be.eql(0);
			var lines = errors[0].split("\n");
			lines[0].should.match(/require-entry-point\.js/);
			lines[1].should.match(/a dependency to an entry point is not allowed/);
			lines = errors[1].split("\n");
			lines[0].should.match(/require-entry-point\.js/);
			lines[1].should.match(/a dependency to an entry point is not allowed/);
			done();
		});
	});
	it("should warn about case-sensitive module names", function(done) {
		getErrors({
			entry: "./case-sensitive"
		}, function(errors, warnings) {
			if(errors.length === 0) {
				warnings.length.should.be.eql(2);
				warnings.sort().reverse();
				var lines = warnings[0].split("\n");
				lines[0].should.match(/file\.js/);
				lines = warnings[1].split("\n");
				lines[0].should.match(/FILE\.js/);
			} else {
				errors.length.should.be.eql(1);
				warnings.length.should.be.eql(0);
			}
			done();
		});
	});
});