webpack/test/Validation.test.js

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

describe("Validation", function() {
	var testCases = [{
		name: "undefined configuration",
		config: undefined,
		message: [
			" - configuration should be an object."
		]
	}, {
		name: "null configuration",
		config: null,
		message: [
			" - configuration should be an object."
		]
	}, {
		name: "empty configuration",
		config: {},
		message: [
			" - configuration misses the property 'entry'.",
			"   object { <key>: string | [string] } | string | [string]",
			"   The entry point(s) of the compilation."
		]
	}, {
		name: "empty entry string",
		config: {
			entry: ""
		},
		message: [
			" - configuration.entry should be one of these:",
			"   object { <key>: string | [string] } | string | [string]",
			"   The entry point(s) of the compilation."
		]
	}, {
		name: "multiple errors",
		config: {
			entry: [/a/],
			output: {
				filename: /a/
			}
		},
		message: [
			" - configuration.entry[0] should be a string.",
			" - configuration.entry should be one of these:",
			"   object { <key>: string | [string] } | string | [string]",
			"   The entry point(s) of the compilation.",
			" - configuration.output.filename should be a string."
		]
	}, {
		name: "multiple configurations",
		config: [{
			entry: [/a/],
		}, {
			entry: "a",
			output: {
				filename: /a/
			}
		}],
		message: [
			" - configuration[0].entry[0] should be a string.",
			" - configuration[0].entry should be one of these:",
			"   object { <key>: string | [string] } | string | [string]",
			"   The entry point(s) of the compilation.",
			" - configuration[1].output.filename should be a string."
		]
	}, {
		name: "deep error",
		config: {
			entry: "a",
			module: {
				rules: [{
					oneOf: [{
						test: "a",
						paser: {
							amd: false
						}
					}]
				}]
			}
		},
		message: [
			" - configuration.module.rules[0].oneOf[0] has an unknown property 'paser'. These properties are valid:",
			"   object { resource?, issuer?, test?, include?, exclude?, loader?, loaders?, options?, query?, use?, parser?, rules?, oneOf? }"
		]
	}];
	testCases.forEach(function(testCase) {
		it("should fail validation for " + testCase.name, function() {
			try {
				webpack(testCase.config);
			} catch(e) {
				if(!(e instanceof WebpackOptionsValidationError))
					throw e;
				e.message.should.startWith("Invalid configuration object.");
				e.message.split("\n").slice(1).should.be.eql(testCase.message);
				return;
			}
			throw new Error("Validation didn't fail");
		})
	});
});