reconciler: Add test case for the example

Makefile

@@ -1,4 +1,4 @@
-.PHONY: all build test test-race bench
+.PHONY: all build test test-race test-example bench
 
 all: build test test-race bench
 
@@ -7,6 +7,7 @@ build:
 
 test:
 	go test ./... -cover -vet=all -test.count 1
+	./reconciler/example/test.sh
 
 test-race:
 	go test -race ./... -test.count 1

reconciler/example/.gitignore

@@ -1 +1,2 @@
 example
+test.log

reconciler/example/main.go

@@ -135,7 +135,7 @@ func NewReconcilerConfig(ops reconciler.Operations[*Memo], tbl statedb.RWTable[*
 	return reconciler.Config[*Memo]{
 		Table:                     tbl,
 		Metrics:                   m,
-		FullReconcilationInterval: 10 * time.Second,
+		FullReconcilationInterval: time.Second,
 		RetryBackoffMinDuration:   100 * time.Millisecond,
 		RetryBackoffMaxDuration:   5 * time.Second,
 		IncrementalRoundSize:      100,

reconciler/example/test.sh

@@ -0,0 +1,57 @@
+#!/usr/bin/env bash
+SCRIPT_DIR=$( cd -- "$( dirname -- "${BASH_SOURCE[0]}" )" &> /dev/null && pwd )
+cd $SCRIPT_DIR
+
+exec 3>&1
+exec &> test.log
+
+set -eux
+
+go build .
+./example &
+
+PID=$!
+cleanup() {
+  s=$?
+  set +eux
+  kill $PID
+  if [ "$s" -ne 0 ]; then
+    cat test.log >&3
+    echo "FAILED" >&3
+  else
+    echo "PASS" >&3
+  fi
+  kill -9 $PID
+  exit $s
+}
+trap 'cleanup' SIGINT SIGTERM EXIT
+
+for i in 1 2 3 4 5; do
+  curl -q http://localhost:8080/statedb &>/dev/null && break
+  sleep 0.5
+done
+
+: Insertion
+curl -d 'hello world' http://localhost:8080/memos/test
+for i in 1 2 3 4 5; do
+  test -f memos/test && break
+  sleep 0.5
+done
+test -f memos/test
+
+: Full reconciliation
+rm -f memos/test
+for i in 1 2 3 4 5; do
+  test -f memos/test && break
+  sleep 1
+done
+test -f memos/test 
+
+: Deletion
+curl -XDELETE http://localhost:8080/memos/test
+for i in 1 2 3 4 5; do
+  test ! -f memos/test && break
+  sleep 0.5
+done
+test ! -f memos/test
+