fix bug without async chunks, add more tests

lib/TemplatedPathPlugin.js

@@ -156,7 +156,9 @@ class TemplatedPathPlugin {
 						hash.update(JSON.stringify(chunk.getChunkMaps(true).hash));
 					if (REGEXP_CONTENTHASH_FOR_TEST.test(chunkFilename)) {
 						hash.update(
-							JSON.stringify(chunk.getChunkMaps(true).contentHash.javascript)
+							JSON.stringify(
+								chunk.getChunkMaps(true).contentHash.javascript || {}
+							)
 						);
 					}
 					if (REGEXP_NAME_FOR_TEST.test(chunkFilename))

test/configCases/hash-length/output-filename/no-async.js

@@ -0,0 +1,5 @@
+it("should compile and run the test " + NAME, function() {});
+
+if (Math.random() < -1) {
+	require(["./chunk"], function() {});
+}

test/configCases/hash-length/output-filename/test.config.js

@@ -17,24 +17,31 @@ module.exports = {
 	findBundle: function(i, options) {
 		var files = fs.readdirSync(options.output.path);
 
-		var bundleDetects = [{
+		var bundleDetects = [
+			options.amd.expectedChunkFilenameLength && {
 				regex: new RegExp("^0.bundle" + i, "i"),
 				expectedNameLength: options.amd.expectedChunkFilenameLength
-		}, {
+			},
+			{
 				regex: new RegExp("^bundle" + i, "i"),
 				expectedNameLength: options.amd.expectedFilenameLength
-		}];
+			}
+		].filter(Boolean);
 
 		var bundleDetect;
 		var filename;
 
 		for (bundleDetect of bundleDetects) {
 			filename = findFile(files, bundleDetect.regex);
-			verifyFilenameLength(
-				filename,
-				bundleDetect.expectedNameLength
+			if (!filename) {
+				throw new Error(
+					`No file found with correct name (regex: ${
+						bundleDetect.regex.source
+					}, files: ${files.join(", ")})`
 				);
 			}
+			verifyFilenameLength(filename, bundleDetect.expectedNameLength);
+		}
 
 		return "./" + filename;
 	}

test/configCases/hash-length/output-filename/webpack.config.js

@@ -139,6 +139,58 @@ module.exports = [
 			expectedFilenameLength: 9 + 7 + 3,
 			expectedChunkFilenameLength: 2 + 9 + 7 + 3
 		}
+	},
+	{
+		name: "contenthash in async-node",
+		output: {
+			filename: "bundle12.[contenthash].js",
+			chunkFilename: "[id].bundle12.[contenthash].js"
+		},
+		target: "async-node",
+		amd: {
+			expectedFilenameLength: 32,
+			expectedChunkFilenameLength: 34
+		}
+	},
+	{
+		name: "contenthash in async-node with length",
+		output: {
+			filename: "bundle13.[contenthash:7].js",
+			chunkFilename: "[id].bundle13.[contenthash:7].js"
+		},
+		target: "async-node",
+		amd: {
+			expectedFilenameLength: 9 + 7 + 3,
+			expectedChunkFilenameLength: 2 + 9 + 7 + 3
+		}
+	},
+	{
+		name: "contenthash in webpack",
+		entry: "./no-async",
+		output: {
+			filename: "bundle14.[contenthash].js",
+			chunkFilename: "[id].bundle14.[contenthash].js",
+			globalObject: "this"
+		},
+		target: "web",
+		amd: {
+			expectedFilenameLength: 32,
+			expectedChunkFilenameLength: 34
+		}
+	},
+	{
+		name: "contenthash in async-node with length",
+		entry: "./no-async",
+		output: {
+			filename: "bundle15.[contenthash:7].js",
+			chunkFilename: "[id].bundle15.[contenthash:7].js",
+			globalObject: "this"
+		},
+		target: "web",
+		amd: {
+			expectedFilenameLength: 9 + 7 + 3,
+			expectedChunkFilenameLength: 2 + 9 + 7 + 3
+		}
 	}
 ];