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[onechat] / memory_test.go

diff --git a/memory_test.go b/memory_test.go
index 8c34149cb07b18997df2d1a950e93e6c41f0fb34..7b3979503a012f666acc99d887ed792fd16bd485 100644 (file)
--- a/memory_test.go
+++ b/memory_test.go
@@ -54,6 +54,33 @@ func TestMemoryRestartLoadsTheSameView(t *testing.T) {
        require.Equal(t, saved, loaded)
 }
 
+func TestMemoryOpensAfterACrashBeforeTheViewSave(t *testing.T) {
+       root := t.TempDir()
+       clock := newTestClock()
+       memory, err := openMemory(t.Context(), root, clock.Now, newFakeSummarizer())
+       require.NoError(t, err)
+
+       _, err = memory.Append("user", "first")
+       require.NoError(t, err)
+
+       saved, err := os.ReadFile(filepath.Join(root, "view.json"))
+       require.NoError(t, err)
+
+       _, err = memory.Append("user", "second")
+       require.NoError(t, err)
+
+       view := memory.View()
+       require.NoError(t, memory.Close())
+
+       // The log and the tree hold message 1, but the view does not.
+       require.NoError(t, os.WriteFile(filepath.Join(root, "view.json"), saved, 0o600))
+
+       memory, err = openMemory(t.Context(), root, clock.Now, newFakeSummarizer())
+       require.NoError(t, err)
+       require.Equal(t, view, memory.View())
+       require.NoError(t, memory.Close())
+}
+
 func TestMemoryKeepsTheCompactionViewCoarser(t *testing.T) {
        memory, err := openMemory(t.Context(), t.TempDir(), newTestClock().Now, newFakeSummarizer())
        require.NoError(t, err)