webpack/test/CaseSensitiveModulesWarning.test.js

"use strict";

const should = require("should");
const CaseSensitiveModulesWarning = require("../lib/CaseSensitiveModulesWarning");

const createModule = function(identifier, numberOfReasons) {
	const reasons = new Array(numberOfReasons || 0).fill(null).map((value, index) => {
		return {
			module: createModule(`${identifier}-reason-${index}`)
		};
	});

	return {
		identifier: () => identifier,
		reasons
	};
};

describe("CaseSensitiveModulesWarning", () => {
	let myCaseSensitiveModulesWarning;
	let modules;

	beforeEach(() => {
		modules = [
			createModule("FOOBAR"),
			createModule("FooBar", 1),
			createModule("foobar", 2)
		];
		myCaseSensitiveModulesWarning = new CaseSensitiveModulesWarning(modules);
	});

	it("has the a name", () => myCaseSensitiveModulesWarning.name.should.be.exactly("CaseSensitiveModulesWarning"));

	it("has the a message", () => {
		myCaseSensitiveModulesWarning.message.should.be.exactly(`
There are multiple modules with names that only differ in casing.
This can lead to unexpected behavior when compiling on a filesystem with other case-semantic.
Use equal casing. Compare these module identifiers:
* FOOBAR
* FooBar
    Used by 1 module(s), i. e.
    FooBar-reason-0
* foobar
    Used by 2 module(s), i. e.
    foobar-reason-0
`.trim());
	});

	it("has the an origin", () =>
		myCaseSensitiveModulesWarning.origin.should.be.exactly(modules[0]));

	it('has the a module', () =>
		myCaseSensitiveModulesWarning.module.should.be.exactly(modules[0]));
});