webpack/test/JsonpHotUpdateChunkTemplate...

64 lines
1.9 KiB
JavaScript

"use strict";
const should = require("should");
const sinon = require("sinon");
const ConcatSource = require("webpack-sources").ConcatSource;
const JsonpHotUpdateChunkTemplatePlugin = require("../lib/JsonpHotUpdateChunkTemplatePlugin");
const applyPluginWithOptions = require("./helpers/applyPluginWithOptions");
describe("JsonpHotUpdateChunkTemplatePlugin", () => {
let handlerContext;
beforeEach(() =>
handlerContext = {
outputOptions: {
hotUpdateFunction: "Foo",
library: "Bar"
}
});
it("has apply function", () => (new JsonpHotUpdateChunkTemplatePlugin()).apply.should.be.a.Function());
describe("when applied", () => {
let eventBindings, eventBinding;
beforeEach(() => eventBindings = applyPluginWithOptions(JsonpHotUpdateChunkTemplatePlugin));
it("binds two event handlers", () => eventBindings.length.should.be.exactly(2));
describe("render handler", () => {
beforeEach(() => eventBinding = eventBindings[0]);
it("binds to render event", () => eventBinding.name.should.be.exactly("render"));
it("creates source wrapper with export", () => {
const source = eventBinding.handler.call(handlerContext, "moduleSource()", [], [], {}, 100);
source.should.be.instanceof(ConcatSource);
source.source().should.be.exactly("Foo(100,moduleSource())");
});
});
describe("hash handler", () => {
let hashMock;
beforeEach(() => {
eventBinding = eventBindings[1];
hashMock = {
update: sinon.spy()
};
});
it("binds to hash event", () => eventBinding.name.should.be.exactly("hash"));
it("updates hash object", () => {
eventBinding.handler.call(handlerContext, hashMock);
hashMock.update.callCount.should.be.exactly(4);
sinon.assert.calledWith(hashMock.update, "JsonpHotUpdateChunkTemplatePlugin");
sinon.assert.calledWith(hashMock.update, "3");
sinon.assert.calledWith(hashMock.update, "Foo");
sinon.assert.calledWith(hashMock.update, "Bar");
});
});
});
});