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internal/knowledge/indexer_rebuild_state_test.go

@@ -0,0 +1,20 @@
+package knowledge
+
+import "testing"
+
+func TestIndexerRejectsConcurrentIndexRuns(t *testing.T) {
+	idx := &Indexer{}
+
+	if err := idx.beginIndexRun(); err != nil {
+		t.Fatalf("first index run should start: %v", err)
+	}
+	if err := idx.beginIndexRun(); err == nil {
+		t.Fatal("second index run should be rejected while one is active")
+	}
+
+	idx.FinishIndexRun()
+	if err := idx.beginIndexRun(); err != nil {
+		t.Fatalf("index run should start again after finish: %v", err)
+	}
+	idx.FinishIndexRun()
+}