fix(vitest): correctly filter by parent folder

packages/vitest/src/node/workspace.ts

@@ -266,6 +266,13 @@ export class WorkspaceProject {
         const testFile = relative(dir, t).toLocaleLowerCase()
         return filters.some((f) => {
           const relativePath = f.endsWith('/') ? join(relative(dir, f), '/') : relative(dir, f)
+
+          // the file is inside the filter path, so we should always include it,
+          // we don't include ../file because this condition is always true if
+          // the file doens't exist which cause false positives
+          if (relativePath === '..' || relativePath === '../' || relativePath.startsWith('../..'))
+            return true
+
           return testFile.includes(f.toLocaleLowerCase()) || testFile.includes(relativePath.toLocaleLowerCase())
         })
       })

test/filters/test/testname-pattern.test.ts

@@ -1,4 +1,4 @@
-import { resolve } from 'pathe'
+import { join, resolve } from 'pathe'
 import { expect, test } from 'vitest'
 
 import { runVitest } from '../../test-utils'
@@ -30,3 +30,15 @@ test('match by pattern that also matches current working directory', async () =>
   expect(stdout).toMatch('Test Files  1 passed (1)')
   expect(stdout).not.toMatch('test/example.test.ts')
 })
+
+test.each([
+  ['the parent of CWD', resolve(process.cwd(), '..')],
+  ['the parent of CWD with slash', join(resolve(process.cwd(), '..'), '/')],
+  ['the parent of a parent of CWD', resolve(process.cwd(), '..', '..')],
+])('match by pattern that also matches %s: %s', async (_, filter) => {
+  const { stdout } = await runVitest({ root: './fixtures' }, [filter])
+
+  expect(stdout).toMatch('✓ test/filters.test.ts > this will pass')
+  expect(stdout).toMatch('× test/dont-run-this.test.ts > this will fail')
+  expect(stdout).toMatch('✓ test/example.test.ts > this will pass')
+})