feat: display error frame if present (like Vite)

packages/vitest/src/node/error.ts

@@ -56,19 +56,23 @@ export async function printError(error: unknown, ctx: Vitest, options: PrintErro
 
   if (type)
     printErrorType(type, ctx)
-
   printErrorMessage(e, ctx.logger)
-  printStack(ctx, stacks, nearest, errorProperties, (s, pos) => {
-    if (showCodeFrame && s === nearest && nearest) {
-      const file = fileFromParsedStack(nearest)
-      // could point to non-existing original file
-      // for example, when there is a source map file, but no source in node_modules
-      if (existsSync(file)) {
-        const sourceCode = readFileSync(file, 'utf-8')
-        ctx.logger.log(c.yellow(generateCodeFrame(sourceCode, 4, pos)))
+  if (e.frame) {
+    ctx.logger.log(c.yellow(e.frame))
+  }
+  else {
+    printStack(ctx, stacks, nearest, errorProperties, (s, pos) => {
+      if (showCodeFrame && s === nearest && nearest) {
+        const file = fileFromParsedStack(nearest)
+        // could point to non-existing original file
+        // for example, when there is a source map file, but no source in node_modules
+        if (existsSync(file)) {
+          const sourceCode = readFileSync(file, 'utf-8')
+          ctx.logger.log(c.yellow(generateCodeFrame(sourceCode, 4, pos)))
+        }
       }
-    }
-  })
+    })
+  }
 
   if (e.cause && 'name' in e.cause) {
     (e.cause as any).name = `Caused by: ${(e.cause as any).name}`

packages/vitest/src/types/general.ts

@@ -72,6 +72,7 @@ export interface ErrorWithDiff extends Error {
   expected?: any
   operator?: string
   type?: string
+  frame?: string
 }
 
 export interface ModuleGraphData {

test/stacktraces/fixtures/frame.spec.imba

@@ -0,0 +1,4 @@
+describe "Test" do
+	test("1+1") do
+		expect(1+1).toBe 2
+		ciyet.

test/stacktraces/fixtures/vite.config.ts

@@ -4,6 +4,22 @@ export default defineConfig({
   plugins: [{
     name: 'vite-plugin-imba',
     transform(code, id) {
+      if (id.endsWith('frame.spec.imba')) {
+        // eslint-disable-next-line no-throw-literal
+        throw {
+          name: 'imba-parser error',
+          id,
+          message: 'Unexpected \'CALL_END\'',
+          code,
+          frame:
+              '4 | test("1+1") do\n5 |  expect(1+1).toBe 2\n6 |  frame.\n  |        ^\n7 |\n',
+          loc: {
+            line: 3,
+            column: 11,
+            file: id,
+          },
+        }
+      }
       if (id.endsWith('.imba')) {
         return {
           code:

test/stacktraces/test/__snapshots__/runner.test.ts.snap

@@ -1,5 +1,16 @@
 // Vitest Snapshot v1
 
+exports[`stacktraces should pick error frame if present > frame.spec.imba > frame.spec.imba 1`] = `
+" ❯ frame.spec.imba  (0 test)
+
+4 | test(\\"1+1\\") do
+5 |  expect(1+1).toBe 2
+6 |  frame.
+  |        ^
+7 |
+"
+`;
+
 exports[`stacktraces should respect sourcemaps > add.test.ts > add.test.ts 1`] = `
 " ❯ add.test.ts:12:23
      10| 

test/stacktraces/test/runner.test.ts

@@ -34,3 +34,35 @@ describe('stacktraces should respect sourcemaps', async () => {
     }, 30000)
   }
 })
+
+describe('stacktraces should pick error frame if present', async () => {
+  const root = resolve(__dirname, '../fixtures')
+  const files = ['frame.spec.imba']
+
+  for (const file of files) {
+    it(file, async () => {
+    // in Windows child_process is very unstable, we skip testing it
+      if (process.platform === 'win32' && process.env.CI)
+        return
+
+      let error: any
+      await execa('npx', ['vitest', 'run', file], {
+        cwd: root,
+        env: {
+          ...process.env,
+          CI: 'true',
+          NO_COLOR: 'true',
+        },
+      })
+        .catch((e) => {
+          error = e
+        })
+
+      expect(error).toBeTruthy()
+      const lines = String(error).split(/\n/g)
+      const index = lines.findIndex(val => val.includes('(0 test)'))
+      const msg = lines.slice(index, index + 8).join('\n')
+      expect(msg).toMatchSnapshot(file)
+    }, 30000)
+  }
+})