fix: print uint and buffer as a simple string (#8141)

sheremet-va · web-flow · commit b86bf0d99fdf · 2025-06-10T13:24:17.000+02:00
diff --git a/packages/utils/src/error.ts b/packages/utils/src/error.ts
@@ -60,6 +60,12 @@ export function serializeValue(val: any, seen: WeakMap<WeakKey, any> = new WeakM
   if (typeof val !== 'object') {
     return val
   }
+  if (typeof Buffer !== 'undefined' && val instanceof Buffer) {
+    return `<Buffer(${val.length}) ...>`
+  }
+  if (typeof Uint8Array !== 'undefined' && val instanceof Uint8Array) {
+    return `<Uint8Array(${val.length}) ...>`
+  }
   // cannot serialize immutables as immutables
   if (isImmutable(val)) {
     return serializeValue(val.toJSON(), seen)
diff --git a/packages/vitest/src/node/printError.ts b/packages/vitest/src/node/printError.ts
@@ -130,7 +130,7 @@ function printErrorInner(
       : stacks.find((stack) => {
           try {
             return (
-              project.server
+              project._vite
               && project.getModuleById(stack.file)
               && existsSync(stack.file)
             )
diff --git a/test/cli/test/print-error.test.ts b/test/cli/test/print-error.test.ts
@@ -41,3 +41,19 @@ CustomError: custom error
 Serialized Error: { stack: [ 'custom stack 1', 'custom stack 2' ] }
     `.trim())
 })
+
+test('prints buffer and UintArray', async () => {
+  const { stderr } = await runInlineTests({
+    'basic.test.ts': `
+    test('failed test', () => {
+      throw {
+        buffer: Buffer.from([1, 2, 3]),
+        uintarray: Uint8Array.from([1, 2, 3]),
+      }
+    })
+    `,
+  }, { globals: true })
+
+  expect(stderr).toContain(`buffer: '<Buffer(3) ...>'`)
+  expect(stderr).toContain(`uintarray: '<Uint8Array(3) ...>'`)
+})

Original file line number	Diff line number	Diff line change
`@@ -130,7 +130,7 @@ function printErrorInner(`
`130`	`130`	`: stacks.find((stack) => {`
`131`	`131`	`try {`
`132`	`132`	`return (`
`133`		`- project.server`
	`133`	`+ project._vite`
`134`	`134`	`&& project.getModuleById(stack.file)`
`135`	`135`	`&& existsSync(stack.file)`
`136`	`136`	`)`