webpack/test/HotModuleReplacementPlugin....

74 lines
2.6 KiB
JavaScript

var should = require("should");
var path = require("path");
var fs = require("fs");
var webpack = require("../");
describe("HotModuleReplacementPlugin", function() {
this.timeout(10000);
it("should not have circular hashes but equal if unmodified", function(done) {
var entryFile = path.join(__dirname, "js", "entry.js");
var statsFile1 = path.join(__dirname, "js", "HotModuleReplacementPlugin.test.stats1.txt");
var statsFile2 = path.join(__dirname, "js", "HotModuleReplacementPlugin.test.stats2.txt");
var recordsFile = path.join(__dirname, "js", "records.json");
try {
fs.mkdirSync(path.join(__dirname, "js"));
} catch(e) {}
try {
fs.unlinkSync(recordsFile);
} catch(e) {}
var compiler = webpack({
cache: false,
entry: entryFile,
recordsPath: recordsFile,
output: {
path: path.join(__dirname, "js")
},
plugins: [
new webpack.HotModuleReplacementPlugin(),
new webpack.optimize.OccurrenceOrderPlugin()
]
});
fs.writeFileSync(entryFile, "1", "utf-8");
compiler.run(function(err, stats) {
if(err) throw err;
var oldHash1 = stats.toJson().hash;
fs.writeFileSync(statsFile1, stats.toString());
compiler.run(function(err, stats) {
if(err) throw err;
var lastHash1 = stats.toJson().hash;
fs.writeFileSync(statsFile2, stats.toString());
lastHash1.should.be.eql(oldHash1, "hash shouldn't change when bundle stay equal");
fs.writeFileSync(entryFile, "2", "utf-8");
compiler.run(function(err, stats) {
if(err) throw err;
var lastHash2 = stats.toJson().hash;
fs.writeFileSync(statsFile1, stats.toString());
lastHash2.should.not.be.eql(lastHash1, "hash should change when bundle changes");
fs.writeFileSync(entryFile, "1", "utf-8");
compiler.run(function(err, stats) {
if(err) throw err;
var currentHash1 = stats.toJson().hash;
fs.writeFileSync(statsFile2, stats.toString());
currentHash1.should.not.be.eql(lastHash1, "hash shouldn't change to the first hash if bundle changed back to first bundle");
fs.writeFileSync(entryFile, "2", "utf-8");
compiler.run(function(err, stats) {
if(err) throw err;
var currentHash2 = stats.toJson().hash;
fs.writeFileSync(statsFile1, stats.toString());
compiler.run(function(err, stats) {
if(err) throw err;
stats.toJson().hash.should.be.eql(currentHash2);
currentHash2.should.not.be.eql(lastHash2);
currentHash1.should.not.be.eql(currentHash2);
lastHash1.should.not.be.eql(lastHash2);
done();
});
});
});
});
});
});
});
});