webpack/test/ContextModuleFactory.unitte...

124 lines
3.1 KiB
JavaScript

"use strict";
const { createFsFromVolume, Volume } = require("memfs");
const ContextModuleFactory = require("../lib/ContextModuleFactory");
describe("ContextModuleFactory", () => {
describe("resolveDependencies", () => {
let factory, memfs;
beforeEach(() => {
factory = new ContextModuleFactory([]);
memfs = createFsFromVolume(new Volume());
});
it("should not report an error when ENOENT errors happen", done => {
memfs.readdir = (dir, callback) => {
setTimeout(() => callback(null, ["/file"]));
};
memfs.stat = (file, callback) => {
let err = new Error("fake ENOENT error");
err.code = "ENOENT";
setTimeout(() => callback(err, null));
};
factory.resolveDependencies(
memfs,
{
resource: "/",
recursive: true,
regExp: /.*/
},
(err, res) => {
expect(err).toBeFalsy();
expect(Array.isArray(res)).toBe(true);
expect(res.length).toBe(0);
done();
}
);
});
it("should report an error when non-ENOENT errors happen", done => {
memfs.readdir = (dir, callback) => {
setTimeout(() => callback(null, ["/file"]));
};
memfs.stat = (file, callback) => {
let err = new Error("fake EACCES error");
err.code = "EACCES";
setTimeout(() => callback(err, null));
};
factory.resolveDependencies(
memfs,
{
resource: "/",
recursive: true,
regExp: /.*/
},
(err, res) => {
expect(err).toBeInstanceOf(Error);
expect(res).toBeFalsy();
done();
}
);
});
it("should return callback with [] if circular symlinks exist", done => {
let statDirStatus = 0;
memfs.readdir = (dir, callback) => {
statDirStatus++;
setTimeout(() => callback(null, ["/A"]));
};
memfs.stat = (file, callback) => {
const resolvedValue = {
isDirectory: () => statDirStatus === 1,
isFile: () => statDirStatus !== 1
};
setTimeout(() => callback(null, resolvedValue));
};
memfs.realpath = (dir, callback) => {
const realPath = dir.split("/");
setTimeout(() => callback(null, realPath[realPath.length - 1]));
};
factory.resolveDependencies(
memfs,
{
resource: "/A",
recursive: true,
regExp: /.*/
},
(err, res) => {
expect(res).toStrictEqual([]);
done();
}
);
});
it("should not return callback with [] if there are no circular symlinks", done => {
let statDirStatus = 0;
memfs.readdir = (dir, callback) => {
statDirStatus++;
setTimeout(() => callback(null, ["/B"]));
};
memfs.stat = (file, callback) => {
const resolvedValue = {
isDirectory: () => statDirStatus === 1,
isFile: () => statDirStatus !== 1
};
setTimeout(() => callback(null, resolvedValue));
};
memfs.realpath = (dir, callback) => {
const realPath = dir.split("/");
setTimeout(() => callback(null, realPath[realPath.length - 1]));
};
factory.resolveDependencies(
memfs,
{
resource: "/A",
recursive: true,
regExp: /.*/
},
(err, res) => {
expect(res).not.toStrictEqual([]);
expect(Array.isArray(res)).toBe(true);
expect(res.length).toBe(1);
done();
}
);
});
});
});