webpack/test/MultiWatching.unittest.js

66 lines
1.5 KiB
JavaScript

"use strict";
const Tapable = require("tapable").Tapable;
const SyncHook = require("tapable").SyncHook;
const sinon = require("sinon");
const MultiWatching = require("../lib/MultiWatching");
const createWatching = () => {
return {
invalidate: sinon.spy(),
close: sinon.spy()
};
};
const createCompiler = () => {
const compiler = {
hooks: {
watchClose: new SyncHook([])
}
};
Tapable.addCompatLayer(compiler);
return compiler;
};
describe("MultiWatching", () => {
let watchings, compiler, myMultiWatching;
beforeEach(() => {
watchings = [createWatching(), createWatching()];
compiler = createCompiler();
myMultiWatching = new MultiWatching(watchings, compiler);
});
describe("invalidate", () => {
beforeEach(() => {
myMultiWatching.invalidate();
});
it("invalidates each watching", () => {
expect(watchings[0].invalidate.callCount).toBe(1);
expect(watchings[1].invalidate.callCount).toBe(1);
});
});
describe("close", () => {
let callback;
const callClosedFinishedCallback = (watching) => watching.close.getCall(0).args[0]();
beforeEach(() => {
callback = sinon.spy();
myMultiWatching.close(callback);
});
it("closes each watching", () => {
expect(watchings[0].close.callCount).toBe(1);
expect(watchings[1].close.callCount).toBe(1);
});
it("calls callback after each watching has closed", () => {
callClosedFinishedCallback(watchings[0]);
callClosedFinishedCallback(watchings[1]);
expect(callback.callCount).toBe(1);
});
});
});