[#4] 增加端到端测试

src/bind/tests/scripts/03_reload_test.sh

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+#!/bin/bash
+
+# Test DNS configuration reload with IP modification
+# Usage: ./03_reload_test.sh
+
+set -e
+
+SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+TEST_DIR="$(dirname "$SCRIPT_DIR")"
+
+echo "=== DNS Configuration Reload Test ==="
+
+# Check if container is running
+if ! docker compose ps | grep -q "Up"; then
+    echo "Error: BIND9 container is not running"
+    echo "Please start the container first with: ./01_start_container.sh"
+    exit 1
+fi
+
+# Check if dig is available
+if ! command -v dig &> /dev/null; then
+    echo "Installing dig (dnsutils)..."
+    apt-get update && apt-get install -y dnsutils
+fi
+
+# Function to test DNS query
+test_dns_query() {
+    local hostname="$1"
+    local expected_ip="$2"
+    local description="$3"
+
+    echo "Testing: $description"
+    echo "Query: $hostname.argus.com -> Expected: $expected_ip"
+
+    result=$(dig @localhost $hostname.argus.com A +short 2>/dev/null || echo "QUERY_FAILED")
+
+    if [ "$result" = "$expected_ip" ]; then
+        echo "✓ $result"
+        return 0
+    else
+        echo "✗ Got: $result, Expected: $expected_ip"
+        return 1
+    fi
+}
+
+echo ""
+echo "Step 1: Testing initial DNS configuration..."
+
+# Test initial configuration
+if ! test_dns_query "web" "12.4.5.6" "Initial web.argus.com resolution"; then
+    echo "Initial DNS test failed"
+    exit 1
+fi
+
+echo ""
+echo "Step 2: Modifying DNS configuration..."
+
+# Backup original configuration
+cp "$TEST_DIR/private/argus/bind/db.argus.com" "$TEST_DIR/private/argus/bind/db.argus.com.backup" 2>/dev/null || true
+
+# Create new configuration with modified IP
+DB_FILE="$TEST_DIR/private/argus/bind/db.argus.com"
+
+# Check if persistent config exists, if not use from container
+if [ ! -f "$DB_FILE" ]; then
+    echo "Persistent config not found, copying from container..."
+    docker compose exec bind9 cp /etc/bind/db.argus.com /private/argus/bind/db.argus.com
+    docker compose exec bind9 chown bind:bind /private/argus/bind/db.argus.com
+fi
+
+# Modify the IP address (12.4.5.6 -> 192.168.1.100)
+sed -i 's/12\.4\.5\.6/192.168.1.100/g' "$DB_FILE"
+
+# Increment serial number for DNS cache invalidation
+current_serial=$(grep -o "2[[:space:]]*;" "$DB_FILE" | grep -o "2")
+new_serial=$((current_serial + 1))
+sed -i "s/2[[:space:]]*;/${new_serial}         ;/" "$DB_FILE"
+
+echo "Modified configuration:"
+echo "- Changed web.argus.com IP: 12.4.5.6 -> 192.168.1.100"
+echo "- Updated serial number: $current_serial -> $new_serial"
+
+echo ""
+echo "Step 3: Reloading BIND9 configuration..."
+
+# Reload BIND9 configuration
+docker compose exec bind9 /usr/local/bin/reload-bind9.sh
+
+echo "Configuration reloaded"
+
+# Wait a moment for changes to take effect
+sleep 3
+
+echo ""
+echo "Step 4: Testing modified DNS configuration..."
+
+# Test modified configuration
+if ! test_dns_query "web" "192.168.1.100" "Modified web.argus.com resolution"; then
+    echo "Modified DNS test failed"
+    exit 1
+fi
+
+# Also verify ns1 still works
+if ! test_dns_query "ns1" "127.0.0.1" "ns1.argus.com still working"; then
+    echo "ns1 DNS test failed after reload"
+    exit 1
+fi
+
+echo ""
+echo "✓ DNS configuration reload test completed successfully!"
+echo "✓ IP address changed from 12.4.5.6 to 192.168.1.100"
+echo "✓ Configuration persisted and reloaded correctly"