Test watching modules included in a ConcatenatedModule

ModuleConcatenationPlugin creates a ConcatenatedModule from harmony
modules. It must be rebuilt when those modules change.

test/watchCases/plugins/module-concatenation-plugin/0/bar/a.js

@@ -0,0 +1 @@
+export default 'This ';

test/watchCases/plugins/module-concatenation-plugin/0/bar/abc.js

@@ -0,0 +1,5 @@
+import a from './a';
+import b from './b';
+import c from './c';
+
+export default a + b + c;

test/watchCases/plugins/module-concatenation-plugin/0/bar/b.js

@@ -0,0 +1 @@
+export default 'is only';

test/watchCases/plugins/module-concatenation-plugin/0/bar/c.js

@@ -0,0 +1 @@
+export default ' a test';

test/watchCases/plugins/module-concatenation-plugin/0/foo/0.js

@@ -0,0 +1 @@
+module.exports = require('../bar/abc').default + '.0';

test/watchCases/plugins/module-concatenation-plugin/0/index.js

@@ -0,0 +1,13 @@
+it("should watch for changes", function() {
+	if(WATCH_STEP === '0') {
+		require("./foo/" + WATCH_STEP).should.be.eql('This is only a test.' + WATCH_STEP);
+	}
+	else if(WATCH_STEP === '1') {
+		require("./foo/" + WATCH_STEP).should.be.eql('This should be a test.' + WATCH_STEP);
+	}
+	else if(WATCH_STEP === '2') {
+		require("./foo/" + WATCH_STEP).should.be.eql('This should be working.' + WATCH_STEP);
+	}
+
+	STATS_JSON.modules.length.should.equal(4 + Number(WATCH_STEP));
+});

test/watchCases/plugins/module-concatenation-plugin/1/bar/b.js

@@ -0,0 +1 @@
+export default 'should be';

test/watchCases/plugins/module-concatenation-plugin/1/foo/1.js

@@ -0,0 +1 @@
+module.exports = require('../bar/abc').default + '.1';

test/watchCases/plugins/module-concatenation-plugin/2/bar/c.js

@@ -0,0 +1 @@
+export default ' working';

test/watchCases/plugins/module-concatenation-plugin/2/foo/2.js

@@ -0,0 +1 @@
+module.exports = require('../bar/abc').default + '.2';

test/watchCases/plugins/module-concatenation-plugin/webpack.config.js

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+var webpack = require("../../../../");
+module.exports = {
+	plugins: [
+		new webpack.optimize.ModuleConcatenationPlugin()
+	]
+};