fix(reporters): show project in github reporter (#9138)

### Description

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Resolves #issue-number

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.vscode/settings.json

@@ -23,7 +23,7 @@
   // ],
 
   "vitest.ignoreWorkspace": true,
-  "vitest.configSearchPatternInclude": "test/{core,cli,config,browser}/{vitest,vite}.{config.ts,config.unit.mts}",
+  "vitest.configSearchPatternInclude": "test/{core,cli,config,browser,reporters}/{vitest,vite}.{config.ts,config.unit.mts}",
   "testing.automaticallyOpenTestResults": "neverOpen",
 
   // Enable eslint for all supported languages

packages/vitest/src/node/reporters/github-actions.ts

@@ -80,7 +80,7 @@ export class GithubActionsReporter implements Reporter {
         for (const error of task.result?.errors ?? []) {
           projectErrors.push({
             project,
-            title,
+            title: project.name ? `[${project.name}] ${title}` : title,
             error,
             file,
           })

test/reporters/tests/github-actions.test.ts

@@ -18,6 +18,24 @@ describe(GithubActionsReporter, () => {
     expect(stderr).toBe('')
   })
 
+  it('prints the project name when there is one', async () => {
+    let { stdout, stderr } = await runVitest(
+      {
+        name: 'test-project',
+        reporters: new GithubActionsReporter(),
+        root: './fixtures',
+        include: ['**/some-failing.test.ts'],
+      },
+    )
+    stdout = stdout.replace(resolve(import.meta.dirname, '..').replace(/:/g, '%3A'), '__TEST_DIR__')
+    expect(stdout).toMatchInlineSnapshot(`
+      "
+      ::error file=__TEST_DIR__/fixtures/some-failing.test.ts,title=[test-project] some-failing.test.ts > 3 + 3 = 7,line=8,column=17::AssertionError: expected 6 to be 7 // Object.is equality%0A%0A- Expected%0A+ Received%0A%0A- 7%0A+ 6%0A%0A ❯ some-failing.test.ts:8:17%0A%0A
+      "
+    `)
+    expect(stderr).toBe('')
+  })
+
   it('uses onWritePath to format path', async () => {
     const { stdout, stderr } = await runVitest(
       {