add test case

test/configCases/entry/depend-on-non-js/a.css

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+module.exports = [[module.id, "body { background-color: green; }"]];

test/configCases/entry/depend-on-non-js/a.js

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+if (Math.random() < 0) require("./a.css");

test/configCases/entry/depend-on-non-js/b.css

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+module.exports = [[module.id, "body { color: red; }"]];

test/configCases/entry/depend-on-non-js/b.js

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+if (Math.random() < 0) require("./b.css");
+
+it("should run the test", () => {});

test/configCases/entry/depend-on-non-js/test.config.js

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+module.exports = {
+	findBundle: function () {
+		return ["./runtime.js", "./a.js", "./b.js"];
+	}
+};

test/configCases/entry/depend-on-non-js/webpack.config.js

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+const MiniCssPlugin = require("mini-css-extract-plugin");
+
+/** @type {import("../../../../").Configuration} */
+module.exports = {
+	entry: {
+		a: "./a.js",
+		b: { import: "./b.js", dependOn: "a" }
+	},
+	module: {
+		rules: [
+			{
+				test: /\.css$/,
+				loader: MiniCssPlugin.loader
+			}
+		]
+	},
+	output: {
+		filename: "[name].js"
+	},
+	optimization: {
+		runtimeChunk: "single",
+		splitChunks: {
+			chunks: "all",
+			cacheGroups: {
+				styles: {
+					type: "css/mini-extract",
+					enforce: true
+				}
+			}
+		}
+	},
+	target: "web",
+	plugins: [
+		new MiniCssPlugin({
+			experimentalUseImportModule: true
+		})
+	]
+};