diff --git a/test/js/bun/http/fetch-file-upload.test.ts b/test/js/bun/http/fetch-file-upload.test.ts
index ae8a26a8706bd1..b779e3b6c55ae8 100644
--- a/test/js/bun/http/fetch-file-upload.test.ts
+++ b/test/js/bun/http/fetch-file-upload.test.ts
@@ -171,7 +171,7 @@ test("missing file throws the expected error", async () => {
         proxy: "http://localhost:3000",
       });
       expect(Bun.peek.status(resp)).toBe("rejected");
-      expect(async () => await resp).toThrow("No such file or directory");
+      expect(async () => await resp).toThrow("no such file or directory");
     }
   });
   Bun.gc(true);
diff --git a/test/js/bun/io/bun-write.test.js b/test/js/bun/io/bun-write.test.js
index 18a744c3366f56..926ebba987fb5c 100644
--- a/test/js/bun/io/bun-write.test.js
+++ b/test/js/bun/io/bun-write.test.js
@@ -479,7 +479,7 @@ describe("ENOENT", () => {
       const file = join(dir, "file");
       try {
         expect(async () => await Bun.write(file, "contents", { createPath: false })).toThrow(
-          "No such file or directory",
+          "no such file or directory",
         );
         expect(fs.existsSync(file)).toBe(false);
       } finally {
diff --git a/test/js/bun/spawn/spawn.test.ts b/test/js/bun/spawn/spawn.test.ts
index 4f2adf20356932..50e2c0142697ee 100644
--- a/test/js/bun/spawn/spawn.test.ts
+++ b/test/js/bun/spawn/spawn.test.ts
@@ -81,7 +81,7 @@ for (let [gcTick, label] of [
             cmd: ["node", "-e", "console.log('hi')"],
             cwd: "./this-should-not-exist",
           });
-        }).toThrow("No such file or directory");
+        }).toThrow("no such file or directory");
       });
     });
 
@@ -525,7 +525,7 @@ for (let [gcTick, label] of [
             cmd: ["node", "-e", "console.log('hi')"],
             cwd: "./this-should-not-exist",
           });
-        }).toThrow("No such file or directory");
+        }).toThrow("no such file or directory");
       });
     });
   });
diff --git a/test/js/bun/test/stack.test.ts b/test/js/bun/test/stack.test.ts
index 2a55d5b0e15974..da6dcf3edffe93 100644
--- a/test/js/bun/test/stack.test.ts
+++ b/test/js/bun/test/stack.test.ts
@@ -113,7 +113,7 @@ test("throwing inside an error suppresses the error and continues printing prope
 
   const { stderr, exitCode } = result;
 
-  expect(stderr.toString().trim()).toStartWith(`error: No such file or directory
+  expect(stderr.toString().trim()).toStartWith(`ENOENT: no such file or directory, open 'this-file-path-is-bad'
     path: "this-file-path-is-bad",
  syscall: "open",
    errno: -2,
diff --git a/test/js/node/fs/fs.test.ts b/test/js/node/fs/fs.test.ts
index 86fc06de3080d7..5697c82f0e260a 100644
--- a/test/js/node/fs/fs.test.ts
+++ b/test/js/node/fs/fs.test.ts
@@ -584,8 +584,8 @@ describe("mkdirSync", () => {
   });
 
   it("should throw ENOENT for empty string", () => {
-    expect(() => mkdirSync("", { recursive: true })).toThrow("No such file or directory");
-    expect(() => mkdirSync("")).toThrow("No such file or directory");
+    expect(() => mkdirSync("", { recursive: true })).toThrow("no such file or directory");
+    expect(() => mkdirSync("")).toThrow("no such file or directory");
   });
 
   it("throws for invalid options", () => {
@@ -673,7 +673,7 @@ it("promises.readFile", async () => {
       expect.unreachable();
     } catch (e: any) {
       expect(e).toBeInstanceOf(Error);
-      expect(e.message).toBe("No such file or directory");
+      expect(e.message).toBe("ENOENT: no such file or directory, open '/i-dont-exist'");
       expect(e.code).toBe("ENOENT");
       expect(e.errno).toBe(-2);
       expect(e.path).toBe("/i-dont-exist");
@@ -1004,10 +1004,10 @@ it("statSync throwIfNoEntry", () => {
 
 it("statSync throwIfNoEntry: true", () => {
   const path = join(tmpdirSync(), "does", "not", "exist");
-  expect(() => statSync(path, { throwIfNoEntry: true })).toThrow("No such file or directory");
-  expect(() => statSync(path)).toThrow("No such file or directory");
-  expect(() => lstatSync(path, { throwIfNoEntry: true })).toThrow("No such file or directory");
-  expect(() => lstatSync(path)).toThrow("No such file or directory");
+  expect(() => statSync(path, { throwIfNoEntry: true })).toThrow("no such file or directory");
+  expect(() => statSync(path)).toThrow("no such file or directory");
+  expect(() => lstatSync(path, { throwIfNoEntry: true })).toThrow("no such file or directory");
+  expect(() => lstatSync(path)).toThrow("no such file or directory");
 });
 
 it("stat == statSync", async () => {
@@ -3279,20 +3279,20 @@ it("new Stats", () => {
 
 it("test syscall errno, issue#4198", () => {
   const path = `${tmpdir()}/non-existent-${Date.now()}.txt`;
-  expect(() => openSync(path, "r")).toThrow("No such file or directory");
-  expect(() => readSync(2147483640, Buffer.alloc(1))).toThrow("Bad file descriptor");
-  expect(() => readlinkSync(path)).toThrow("No such file or directory");
-  expect(() => realpathSync(path)).toThrow("No such file or directory");
-  expect(() => readFileSync(path)).toThrow("No such file or directory");
-  expect(() => renameSync(path, `${path}.2`)).toThrow("No such file or directory");
-  expect(() => statSync(path)).toThrow("No such file or directory");
-  expect(() => unlinkSync(path)).toThrow("No such file or directory");
-  expect(() => rmSync(path)).toThrow("No such file or directory");
-  expect(() => rmdirSync(path)).toThrow("No such file or directory");
-  expect(() => closeSync(2147483640)).toThrow("Bad file descriptor");
+  expect(() => openSync(path, "r")).toThrow("no such file or directory");
+  expect(() => readSync(2147483640, Buffer.alloc(1))).toThrow("bad file descriptor");
+  expect(() => readlinkSync(path)).toThrow("no such file or directory");
+  expect(() => realpathSync(path)).toThrow("no such file or directory");
+  expect(() => readFileSync(path)).toThrow("no such file or directory");
+  expect(() => renameSync(path, `${path}.2`)).toThrow("no such file or directory");
+  expect(() => statSync(path)).toThrow("no such file or directory");
+  expect(() => unlinkSync(path)).toThrow("no such file or directory");
+  expect(() => rmSync(path)).toThrow("no such file or directory");
+  expect(() => rmdirSync(path)).toThrow("no such file or directory");
+  expect(() => closeSync(2147483640)).toThrow("bad file descriptor");
 
   mkdirSync(path);
-  expect(() => mkdirSync(path)).toThrow("File or folder exists");
+  expect(() => mkdirSync(path)).toThrow("file or folder exists");
   expect(() => unlinkSync(path)).toThrow(
     (
       {
diff --git a/test/js/node/test/parallel/test-process-chdir-errormessage.js b/test/js/node/test/parallel/test-process-chdir-errormessage.js
index 16cdf4aa1deaf3..0ed368287b377e 100644
--- a/test/js/node/test/parallel/test-process-chdir-errormessage.js
+++ b/test/js/node/test/parallel/test-process-chdir-errormessage.js
@@ -12,7 +12,7 @@ assert.throws(
   {
     name: 'Error',
     code: 'ENOENT',
-    // message: /ENOENT: No such file or directory, chdir .+ -> 'does-not-exist'/,
+    message: /ENOENT: no such file or directory, chdir .+ -> 'does-not-exist'/,
     path: process.cwd(),
     syscall: 'chdir',
     dest: 'does-not-exist'
diff --git a/test/js/web/fetch/fetch.test.ts b/test/js/web/fetch/fetch.test.ts
index 6c67d638598dc5..deb497aa19a4ac 100644
--- a/test/js/web/fetch/fetch.test.ts
+++ b/test/js/web/fetch/fetch.test.ts
@@ -909,7 +909,7 @@ describe("Bun.file", () => {
 
     forEachMethod(m => async () => {
       const file = Bun.file(path);
-      expect(async () => await file[m]()).toThrow("No such file or directory");
+      expect(async () => await file[m]()).toThrow("no such file or directory");
     });
   });
 });
diff --git a/test/js/web/fetch/fetch.unix.test.ts b/test/js/web/fetch/fetch.unix.test.ts
index 3722a2c37275ff..c62ec91ed1f707 100644
--- a/test/js/web/fetch/fetch.unix.test.ts
+++ b/test/js/web/fetch/fetch.unix.test.ts
@@ -48,7 +48,7 @@ it("throws an error when the directory is not found", () => {
         return new Response("hello");
       },
     }),
-  ).toThrow("No such file or directory");
+  ).toThrow("no such file or directory");
 });
 
 if (process.platform === "linux") {