chore: import upstream snapshot with attribution

2026-07-13 12:30:44 +08:00
commit bcbd1bdb22
5748 changed files with 562488 additions and 0 deletions
@@ -0,0 +1,55 @@
+# ========= Copyright 2026 @ Strukto.AI All Rights Reserved. =========
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+# ========= Copyright 2026 @ Strukto.AI All Rights Reserved. =========
+
+import asyncio
+
+from mirage.resource.ram import RAMResource
+from mirage.types import MountMode
+from mirage.workspace import Workspace
+
+
+def _make_ws() -> tuple[Workspace, RAMResource]:
+    resource = RAMResource()
+    resource._store.files["/file.txt"] = b"OLD"
+    ws = Workspace(
+        {"/data": (resource, MountMode.WRITE)},
+        mode=MountMode.WRITE,
+    )
+    return ws, resource
+
+
+def test_redirect_write_overrides_cached_read():
+    ws, resource = _make_ws()
+
+    async def run() -> None:
+        await ws.execute("cat /data/file.txt")
+        await ws.execute('echo -n "NEW" > /data/file.txt')
+
+    asyncio.run(run())
+    assert resource._store.files["/file.txt"] == b"NEW", (
+        "redirect-write should reach the backend even when the path was "
+        "previously cached by a read")
+
+
+def test_redirect_append_after_cached_read():
+    ws, resource = _make_ws()
+
+    async def run() -> None:
+        await ws.execute("cat /data/file.txt")
+        await ws.execute('echo -n "MORE" >> /data/file.txt')
+
+    asyncio.run(run())
+    assert resource._store.files["/file.txt"] == b"OLDMORE", (
+        "redirect-append should reach the backend even when the path was "
+        "previously cached by a read")