Fix the root path (#180)

* fix root path * add test
dividab · Mar 13, 2022 · 02c37bc · 02c37bc
1 parent 60829c8
commit 02c37bc
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Showing 2 changed files with 55 additions and 6 deletions.
diff --git 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", () => {

diff --git 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;
   }