From bf91e917952d62d6c3553466b6b41ddb2e5ced48 Mon Sep 17 00:00:00 2001
From: Bright Lee <benevbright@gmail.com>
Date: Thu, 7 Oct 2021 16:27:35 +0200
Subject: [PATCH 1/2] fix root path

---
 src/try-path.ts | 7 +------
 1 file changed, 1 insertion(+), 6 deletions(-)

diff --git a/src/try-path.ts b/src/try-path.ts
index bf72304..f7ebede 100644
--- a/src/try-path.ts
+++ b/src/try-path.ts
@@ -20,12 +20,7 @@ export function getPathsToTry(
   absolutePathMappings: ReadonlyArray<MappingEntry>,
   requestedModule: string
 ): ReadonlyArray<TryPath> | undefined {
-  if (
-    !absolutePathMappings ||
-    !requestedModule ||
-    requestedModule[0] === "." ||
-    requestedModule[0] === path.sep
-  ) {
+  if (!absolutePathMappings || !requestedModule || requestedModule[0] === ".") {
     return undefined;
   }
 

From 5932f578534cac286db2ae80b233389eba31751d Mon Sep 17 00:00:00 2001
From: Bright Lee <benevbright@gmail.com>
Date: Sun, 13 Mar 2022 21:30:10 +0100
Subject: [PATCH 2/2] add test

---
 src/__tests__/try-path.test.ts | 54 ++++++++++++++++++++++++++++++++++
 1 file changed, 54 insertions(+)

diff --git a/src/__tests__/try-path.test.ts b/src/__tests__/try-path.test.ts
index f681362..deb69a0 100644
--- a/src/__tests__/try-path.test.ts
+++ b/src/__tests__/try-path.test.ts
@@ -10,6 +10,16 @@ describe("mapping-entry", () => {
     { pattern: "pre/fix/*", paths: [join("/absolute", "base", "url", "foo3")] },
     { pattern: "*", paths: [join("/absolute", "base", "url", "foo1")] },
   ];
+  const abosolutePathMappingsStarstWithSlash = [
+    {
+      pattern: "/opt/*",
+      paths: [join("/absolute", "src", "aws-layer")],
+    },
+    {
+      pattern: "*",
+      paths: [join("/absolute", "src")],
+    },
+  ];
   it("should return no paths for relative requested module", () => {
     const result = getPathsToTry(
       [".ts", "tsx"],
@@ -125,6 +135,50 @@ describe("mapping-entry", () => {
       },
     ]);
   });
+
+  it("should resolve paths starting with a slash", () => {
+    const result = getPathsToTry(
+      [".ts"],
+      abosolutePathMappingsStarstWithSlash,
+      "/opt/utils"
+    );
+    expect(result).toEqual([
+      // "opt/*"
+      {
+        path: join("/absolute", "src", "aws-layer"),
+        type: "file",
+      },
+      {
+        path: join("/absolute", "src", "aws-layer.ts"),
+        type: "extension",
+      },
+      {
+        path: join("/absolute", "src", "aws-layer", "package.json"),
+        type: "package",
+      },
+      {
+        path: join("/absolute", "src", "aws-layer", "index.ts"),
+        type: "index",
+      },
+      // "*"
+      {
+        path: join("/absolute", "src"),
+        type: "file",
+      },
+      {
+        path: join("/absolute", "src.ts"),
+        type: "extension",
+      },
+      {
+        path: join("/absolute", "src", "package.json"),
+        type: "package",
+      },
+      {
+        path: join("/absolute", "src", "index.ts"),
+        type: "index",
+      },
+    ]);
+  });
 });
 
 // describe("match-star", () => {