fix(snapshot): fix toMatchFileSnapshot with empty file (#5894)

vitest-dev · Jun 16, 2024 · 8800601 · 8800601
1 parent 64e200d
commit 8800601
Show file tree

Hide file tree

Showing 3 changed files with 5 additions and 1 deletion.
diff --git a/packages/snapshot/src/client.ts b/packages/snapshot/src/client.ts
@@ -159,7 +159,7 @@ export class SnapshotClient {
       options.filepath ||= filepath
       // resolve and read the raw snapshot file
       rawSnapshot.file = await snapshotState.environment.resolveRawPath(filepath, rawSnapshot.file)
-      rawSnapshot.content = await snapshotState.environment.readSnapshotFile(rawSnapshot.file) || undefined
+      rawSnapshot.content = await snapshotState.environment.readSnapshotFile(rawSnapshot.file) ?? undefined
     }
 
     return this.assert(options)

diff --git a/test/core/test/fixtures/snapshot-empty.txt b/test/core/test/fixtures/snapshot-empty.txt
diff --git a/test/core/test/snapshot-file.test.ts b/test/core/test/snapshot-file.test.ts
@@ -18,3 +18,7 @@ describe('snapshots', () => {
     })
   }
 })
+
+test('handle empty file', () => {
+  expect('').toMatchFileSnapshot('./fixtures/snapshot-empty.txt')
+})