From 3a41ca4ee223a93803cb9e0cfc27e2306699f154 Mon Sep 17 00:00:00 2001
From: zacanger <zac@zacanger.com>
Date: Thu, 1 Mar 2018 17:09:01 -0700
Subject: [PATCH 1/2] Fix #6644

---
 lib/optimize/SplitChunksPlugin.js                   |  2 +-
 test/configCases/split-chunks/no-options/a.js       |  1 +
 test/configCases/split-chunks/no-options/index.js   |  6 ++++++
 .../split-chunks/no-options/test.config.js          |  5 +++++
 .../split-chunks/no-options/webpack.config.js       | 13 +++++++++++++
 5 files changed, 26 insertions(+), 1 deletion(-)
 create mode 100644 test/configCases/split-chunks/no-options/a.js
 create mode 100644 test/configCases/split-chunks/no-options/index.js
 create mode 100644 test/configCases/split-chunks/no-options/test.config.js
 create mode 100644 test/configCases/split-chunks/no-options/webpack.config.js

diff --git a/lib/optimize/SplitChunksPlugin.js b/lib/optimize/SplitChunksPlugin.js
index 9cbd3408780..f971534ed6f 100644
--- a/lib/optimize/SplitChunksPlugin.js
+++ b/lib/optimize/SplitChunksPlugin.js
@@ -83,7 +83,7 @@ module.exports = class SplitChunksPlugin {
 		this.options = SplitChunksPlugin.normalizeOptions(options);
 	}
 
-	static normalizeOptions(options) {
+	static normalizeOptions(options = {}) {
 		return {
 			chunks: options.chunks || "all",
 			minSize: options.minSize || 0,
diff --git a/test/configCases/split-chunks/no-options/a.js b/test/configCases/split-chunks/no-options/a.js
new file mode 100644
index 00000000000..6cd1d0075d4
--- /dev/null
+++ b/test/configCases/split-chunks/no-options/a.js
@@ -0,0 +1 @@
+module.exports = "a";
diff --git a/test/configCases/split-chunks/no-options/index.js b/test/configCases/split-chunks/no-options/index.js
new file mode 100644
index 00000000000..b5158af8104
--- /dev/null
+++ b/test/configCases/split-chunks/no-options/index.js
@@ -0,0 +1,6 @@
+require("should");
+
+it("should run", function() {
+	var a = require("./a");
+	a.should.be.eql("a");
+});
diff --git a/test/configCases/split-chunks/no-options/test.config.js b/test/configCases/split-chunks/no-options/test.config.js
new file mode 100644
index 00000000000..6f3aaf93f4f
--- /dev/null
+++ b/test/configCases/split-chunks/no-options/test.config.js
@@ -0,0 +1,5 @@
+module.exports = {
+	findBundle: function(i, options) {
+		return ["vendor.js", "main.js"];
+	}
+};
diff --git a/test/configCases/split-chunks/no-options/webpack.config.js b/test/configCases/split-chunks/no-options/webpack.config.js
new file mode 100644
index 00000000000..16fb5373352
--- /dev/null
+++ b/test/configCases/split-chunks/no-options/webpack.config.js
@@ -0,0 +1,13 @@
+const SplitChunksPlugin = require("../../../../lib/optimize/SplitChunksPlugin");
+
+module.exports = {
+	entry: {
+		vendor: ["./a"],
+		main: "./index"
+	},
+	target: "web",
+	output: {
+		filename: "[name].js"
+	},
+	plugins: [new SplitChunksPlugin()]
+};

From b0e14df9ce2af4efafe98be44c2235ffa1ba9d7e Mon Sep 17 00:00:00 2001
From: zacanger <zac@zacanger.com>
Date: Fri, 2 Mar 2018 09:50:13 -0700
Subject: [PATCH 2/2] Set optimization.splitChunks to false in test webpack
 config.

---
 test/configCases/split-chunks/no-options/webpack.config.js | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/test/configCases/split-chunks/no-options/webpack.config.js b/test/configCases/split-chunks/no-options/webpack.config.js
index 16fb5373352..eb349acba83 100644
--- a/test/configCases/split-chunks/no-options/webpack.config.js
+++ b/test/configCases/split-chunks/no-options/webpack.config.js
@@ -9,5 +9,8 @@ module.exports = {
 	output: {
 		filename: "[name].js"
 	},
+	optimization: {
+		splitChunks: false
+	},
 	plugins: [new SplitChunksPlugin()]
 };