From b89b536106338a1862215687c8d404fb2df5121f Mon Sep 17 00:00:00 2001
From: dmattia <david@transcend.io>
Date: Sat, 6 Mar 2021 12:25:19 -0600
Subject: [PATCH] Add a test case for resolve.fallback

---
 test/configCases/resolve/fallback/a/1.js            | 1 +
 test/configCases/resolve/fallback/a/2.js            | 1 +
 test/configCases/resolve/fallback/b/2.js            | 1 +
 test/configCases/resolve/fallback/index.js          | 9 +++++++++
 test/configCases/resolve/fallback/webpack.config.js | 9 +++++++++
 5 files changed, 21 insertions(+)
 create mode 100644 test/configCases/resolve/fallback/a/1.js
 create mode 100644 test/configCases/resolve/fallback/a/2.js
 create mode 100644 test/configCases/resolve/fallback/b/2.js
 create mode 100644 test/configCases/resolve/fallback/index.js
 create mode 100644 test/configCases/resolve/fallback/webpack.config.js

diff --git a/test/configCases/resolve/fallback/a/1.js b/test/configCases/resolve/fallback/a/1.js
new file mode 100644
index 00000000000..bd816eaba4c
--- /dev/null
+++ b/test/configCases/resolve/fallback/a/1.js
@@ -0,0 +1 @@
+module.exports = 1;
diff --git a/test/configCases/resolve/fallback/a/2.js b/test/configCases/resolve/fallback/a/2.js
new file mode 100644
index 00000000000..f7377f82003
--- /dev/null
+++ b/test/configCases/resolve/fallback/a/2.js
@@ -0,0 +1 @@
+module.exports = 'not 2';
diff --git a/test/configCases/resolve/fallback/b/2.js b/test/configCases/resolve/fallback/b/2.js
new file mode 100644
index 00000000000..4bbffde1044
--- /dev/null
+++ b/test/configCases/resolve/fallback/b/2.js
@@ -0,0 +1 @@
+module.exports = 2;
diff --git a/test/configCases/resolve/fallback/index.js b/test/configCases/resolve/fallback/index.js
new file mode 100644
index 00000000000..81e29b548d2
--- /dev/null
+++ b/test/configCases/resolve/fallback/index.js
@@ -0,0 +1,9 @@
+it("ignores the fallback if an existing module is present", () => {
+	const two = require("./b/2");
+	expect(two).toBe(2);
+});
+
+it("can fallback if the module does not exist", () => {
+	const one = require("./b/1");
+	expect(one).toBe(1);
+});
diff --git a/test/configCases/resolve/fallback/webpack.config.js b/test/configCases/resolve/fallback/webpack.config.js
new file mode 100644
index 00000000000..f6ba0ba6714
--- /dev/null
+++ b/test/configCases/resolve/fallback/webpack.config.js
@@ -0,0 +1,9 @@
+const path = require("path");
+/** @type {import("../../../../").Configuration} */
+module.exports = {
+	resolve: {
+		fallback: {
+			"./b": path.resolve(__dirname, "a")
+		}
+	}
+};