added first HMR test case

sokra · sokra · commit 358c457d8c32 · 2015-11-01T16:11:35.000+01:00
diff --git a/test/HotTestCases.test.js b/test/HotTestCases.test.js
@@ -0,0 +1,105 @@
+var should = require("should");
+var path = require("path");
+var fs = require("fs");
+var vm = require("vm");
+var Test = require("mocha/lib/test");
+var checkArrayExpectation = require("./checkArrayExpectation");
+
+var webpack = require("../lib/webpack");
+
+describe("HotTestCases", function() {
+	var casesPath = path.join(__dirname, "hotCases");
+	var categories = fs.readdirSync(casesPath).filter(function(dir) {
+		return fs.statSync(path.join(casesPath, dir)).isDirectory();
+	});
+	categories = categories.map(function(cat) {
+		return {
+			name: cat,
+			tests: fs.readdirSync(path.join(casesPath, cat)).filter(function(folder) {
+				return folder.indexOf("_") < 0;
+			})
+		};
+	});
+	categories.forEach(function(category) {
+		describe(category.name, function() {
+			category.tests.forEach(function(testName) {
+				var suite = describe(testName, function() {});
+				it(testName + " should compile", function(done) {
+					this.timeout(10000);
+					var testDirectory = path.join(casesPath, category.name, testName);
+					var outputDirectory = path.join(__dirname, "js", "hot-cases", category.name, testName);
+					var recordsPath = path.join(outputDirectory, "records.json");
+					if(fs.exists(recordsPath))
+						fs.unlinkSync(recordsPath);
+					var options = {
+						context: testDirectory,
+						entry: "./index.js",
+						output: {
+							path: outputDirectory,
+							filename: "bundle.js"
+						},
+						module: {
+							loaders: [
+								{
+									test: /\.js$/,
+									loader: path.join(__dirname, "hotCases", "fake-update-loader.js")
+								}
+							]
+						},
+						target: "async-node",
+						plugins: [
+							new webpack.HotModuleReplacementPlugin()
+						],
+						recordsPath: recordsPath,
+						updateIndex: 0
+					}
+					var compiler = webpack(options);
+					compiler.run(function(err, stats) {
+						if(err) return done(err);
+						var jsonStats = stats.toJson({
+							errorDetails: true
+						});
+						if(checkArrayExpectation(testDirectory, jsonStats, "error", "Error", done)) return;
+						if(checkArrayExpectation(testDirectory, jsonStats, "warning", "Warning", done)) return;
+						var exportedTests = 0;
+
+						function _it(title, fn) {
+							var test = new Test(title, fn);
+							suite.addTest(test);
+							exportedTests++;
+							return test;
+						}
+
+						function _next(callback) {
+							options.updateIndex++;
+							compiler.run(function(err, stats) {
+								if(err) return done(err);
+								var jsonStats = stats.toJson({
+									errorDetails: true
+								});
+								if(checkArrayExpectation(testDirectory, jsonStats, "error", "Error", done)) return;
+								if(checkArrayExpectation(testDirectory, jsonStats, "warning", "Warning", done)) return;
+								if(callback) callback();
+							})
+						}
+
+						function _require(module) {
+							if(module.substr(0, 2) === "./") {
+								var p = path.join(outputDirectory, module);
+								var fn = vm.runInThisContext("(function(require, module, exports, __dirname, __filename, it, NEXT) {" + fs.readFileSync(p, "utf-8") + "\n})", p);
+								var module = {
+									exports: {}
+								};
+								fn.call(module.exports, _require, module, module.exports, outputDirectory, p, _it, _next);
+								return module.exports;
+							} else return require(module);
+						}
+						_require("./bundle.js");
+						if(exportedTests < 1) return done(new Error("No tests exported by test case"));
+						process.nextTick(done);
+					});
+				});
+			});
+		});
+	});
+});
diff --git a/test/hotCases/accept/simple/file.js b/test/hotCases/accept/simple/file.js
@@ -0,0 +1,3 @@
+module.exports = 1;
+---
+module.exports = 2;
diff --git a/test/hotCases/accept/simple/index.js b/test/hotCases/accept/simple/index.js
@@ -0,0 +1,16 @@
+var value = require("./file");
+
+it("should accept a dependencies and require a new value", function(done) {
+	value.should.be.eql(1);
+	module.hot.accept("./file", function() {
+		value = require("./file");
+		value.should.be.eql(2);
+		outside();
+		done();
+	});
+	NEXT(require("../../update")(done));
+});
+
+function outside() {
+	value.should.be.eql(2);
+}
diff --git a/test/hotCases/fake-update-loader.js b/test/hotCases/fake-update-loader.js
@@ -0,0 +1,5 @@
+module.exports = function(source) {
+	var idx = this.options.updateIndex;
+	var items = source.split(/---+\r?\n/g);
+	return items[idx] || items[items.length - 1];
+}
diff --git a/test/hotCases/update.js b/test/hotCases/update.js
@@ -0,0 +1,7 @@
+module.exports = function(done) {
+	return function() {
+		module.hot.check(true, function(err) {
+			if(err) done(err);
+		});
+	}
+};

Original file line number	Diff line number	Diff line change
`@@ -0,0 +1,3 @@`
	`1`	`+module.exports = 1;`
	`2`	`+---`
	`3`	`+module.exports = 2;`