mirror of https://github.com/webpack/webpack.git
Merge pull request #3510 from webpack/test/watch-tests
add infrastructure for watch tests
This commit is contained in:
Tobias Koppers
GitHub
commit
ea46fdac08
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@ -178,6 +178,7 @@ NormalModule.prototype.build = function build(options, compilation, resolver, fs
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_this.error = null;
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_this.errors.length = 0;
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_this.warnings.length = 0;
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_this.meta = {};
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return _this.doBuild(options, compilation, resolver, fs, function(err) {
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_this.dependencies.length = 0;
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_this.variables.length = 0;
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@ -0,0 +1,175 @@
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var should = require("should");
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var path = require("path");
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var fs = require("fs");
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var vm = require("vm");
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var Test = require("mocha/lib/test");
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var checkArrayExpectation = require("./checkArrayExpectation");
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var Stats = require("../lib/Stats");
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var webpack = require("../lib/webpack");
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function copyDiff(src, dest) {
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if(!fs.existsSync(dest))
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fs.mkdirSync(dest);
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var files = fs.readdirSync(src);
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files.forEach(function(filename) {
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var srcFile = path.join(src, filename);
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var destFile = path.join(dest, filename);
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var directory = fs.statSync(srcFile).isDirectory();
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if(directory) {
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copyDiff(srcFile, destFile);
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} else {
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fs.writeFileSync(destFile, fs.readFileSync(srcFile));
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}
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});
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}
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function remove(src) {
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if(!fs.existsSync(src))
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return;
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var files = fs.readdirSync(src);
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files.forEach(function(filename) {
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var srcFile = path.join(src, filename);
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var directory = fs.statSync(srcFile).isDirectory();
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if(directory) {
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remove(srcFile);
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} else {
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fs.unlinkSync(srcFile);
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}
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});
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}
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describe("WatchTestCases", function() {
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var casesPath = path.join(__dirname, "watchCases");
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var categories = fs.readdirSync(casesPath);
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categories = categories.map(function(cat) {
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return {
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name: cat,
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tests: fs.readdirSync(path.join(casesPath, cat)).filter(function(folder) {
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return folder.indexOf("_") < 0;
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}).sort()
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};
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});
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before(function() {
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var dest = path.join(__dirname, "js");
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if(!fs.existsSync(dest))
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fs.mkdirSync(dest);
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dest = path.join(__dirname, "js", "watch-src");
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if(!fs.existsSync(dest))
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fs.mkdirSync(dest);
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});
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categories.forEach(function(category) {
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before(function() {
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var dest = path.join(__dirname, "js", "watch-src", category.name);
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if(!fs.existsSync(dest))
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fs.mkdirSync(dest);
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})
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describe(category.name, function() {
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category.tests.forEach(function(testName) {
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describe(testName, function() {
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var tempDirectory = path.join(__dirname, "js", "watch-src", category.name, testName);
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var testDirectory = path.join(casesPath, category.name, testName);
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var runs = fs.readdirSync(testDirectory).sort().map(function(name) {
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return {
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name: name,
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suite: describe(name, function() {})
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}
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});
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before(function() {
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remove(tempDirectory);
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});
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it("should compile", function(done) {
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this.timeout(30000);
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var outputDirectory = path.join(__dirname, "js", "watch", category.name, testName);
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var options = {
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context: tempDirectory,
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entry: "./index.js",
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output: {
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path: outputDirectory,
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pathinfo: true,
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filename: "bundle.js"
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}
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};
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var runIdx = 0;
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var run = runs[runIdx];
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var lastHash = "";
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copyDiff(path.join(testDirectory, run.name), tempDirectory);
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var compiler = webpack(options);
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compiler.watch({}, function(err, stats) {
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if(stats.hash === lastHash)
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return;
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lastHash = stats.hash;
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if(run.done)
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return done(new Error("Compilation changed but no change was issued " + lastHash + " != " + stats.hash + " (run " + runIdx + ")"));
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run.done = true;
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if(err) return done(err);
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var statOptions = Stats.presetToOptions("verbose");
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statOptions.colors = false;
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fs.writeFileSync(path.join(outputDirectory, "stats.txt"), stats.toString(statOptions), "utf-8");
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var jsonStats = stats.toJson({
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errorDetails: true
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});
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if(checkArrayExpectation(testDirectory, jsonStats, "error", "Error", done)) return;
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if(checkArrayExpectation(testDirectory, jsonStats, "warning", "Warning", done)) return;
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var exportedTests = 0;
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function _it(title, fn) {
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var test = new Test(title, fn);
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run.suite.addTest(test);
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exportedTests++;
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return test;
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}
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function _require(currentDirectory, module) {
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if(Array.isArray(module) || /^\.\.?\//.test(module)) {
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var fn;
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var content;
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if(Array.isArray(module)) {
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var p = path.join(currentDirectory, module[0]);
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content = module.map(function(p) {
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var p = path.join(currentDirectory, p);
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return fs.readFileSync(p, "utf-8");
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}).join("\n");
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} else {
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var p = path.join(currentDirectory, module);
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content = fs.readFileSync(p, "utf-8");
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}
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fn = vm.runInThisContext("(function(require, module, exports, __dirname, __filename, it, WATCH_STEP) {" + content + "\n})", p);
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var module = {
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exports: {}
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};
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fn.call(module.exports, _require.bind(null, path.dirname(p)), module, module.exports, path.dirname(p), p, _it, run.name);
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return module.exports;
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} else if(testConfig.modules && module in testConfig.modules) {
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return testConfig.modules[module];
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} else return require(module);
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}
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var testConfig = {};
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try {
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// try to load a test file
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testConfig = require(path.join(testDirectory, "test.config.js"));
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} catch(e) {}
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if(testConfig.noTests) return process.nextTick(done);
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_require(outputDirectory, "./bundle.js");
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if(exportedTests < 1) return done(new Error("No tests exported by test case"));
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runIdx++;
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if(runIdx < runs.length) {
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run = runs[runIdx];
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copyDiff(path.join(testDirectory, run.name), tempDirectory);
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} else {
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process.nextTick(done);
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}
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});
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});
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});
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});
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});
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});
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});
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@ -0,0 +1 @@
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export default "original";
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@ -0,0 +1,14 @@
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import m from "./module";
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import cm from "./changing-module";
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it("should flag harmony modules correctly", function() {
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m.should.be.eql("module" + WATCH_STEP);
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switch(WATCH_STEP) {
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case 0:
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cm.should.be.eql("original");
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break;
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case 1:
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cm.should.be.eql("change");
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break;
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}
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});
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@ -0,0 +1 @@
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export default "module" + WATCH_STEP;
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@ -0,0 +1 @@
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export default "change";
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@ -0,0 +1 @@
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module.exports = "cc0";
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module.exports = "ch0";
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@ -0,0 +1 @@
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export default "hc0";
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@ -0,0 +1 @@
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export default "hh0";
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@ -0,0 +1,23 @@
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import hh from "./hh";
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import hc from "./hc";
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import ch from "./ch";
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import cc from "./cc";
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it("should flag modules correctly", function() {
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hh.should.be.eql("hh" + WATCH_STEP);
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cc.should.be.eql("cc" + WATCH_STEP);
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hc.should.be.eql("hc" + WATCH_STEP);
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ch.should.be.eql("ch" + WATCH_STEP);
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require("./hh").default.should.be.eql("hh" + WATCH_STEP);
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require("./cc").should.be.eql("cc" + WATCH_STEP);
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switch(WATCH_STEP) {
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case 0:
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require("./hc").default.should.be.eql("hc0");
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require("./ch").should.be.eql("ch0");
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break;
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case 1:
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require("./hc").should.be.eql("hc1");
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require("./ch").default.should.be.eql("ch1");
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break;
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}
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});
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@ -0,0 +1 @@
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module.exports = "cc1";
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@ -0,0 +1 @@
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export default "ch1";
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@ -0,0 +1 @@
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module.exports = "hc1";
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export default "hh1";
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module.exports = "0";
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it("should watch for changes", function() {
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require("./changing-file").should.be.eql(WATCH_STEP);
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})
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@ -0,0 +1 @@
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module.exports = "1";
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@ -0,0 +1 @@
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module.exports = "2";
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