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fix: add HTTP backend readiness probes (#97)

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lukaszraczylo
2026-09-26 23:43:10 +01:00
committed by GitHub
parent 85531966fe
commit c41f7907dd
8 changed files with 355 additions and 74 deletions
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connection_resilience_test.go
+7 -15
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@@ -77,16 +77,8 @@ func (suite *ConnectionResilienceTestSuite) TearDownTest() {
// TestBackendHealthManager tests the backend health monitoring
func (suite *ConnectionResilienceTestSuite) TestBackendHealthManager() {
suite.Run("initialization", func() {
healthMgr := NewBackendHealthManager(cfg.Client.FastProxyClient, cfg.Server.HostGraphQL, cfg.Logger)
suite.NotNil(healthMgr)
suite.Equal(cfg.Server.HostGraphQL, healthMgr.backendURL)
suite.Equal(5*time.Second, healthMgr.checkInterval)
suite.Equal(30, healthMgr.maxRetries)
})
suite.Run("health check success", func() {
healthMgr := NewBackendHealthManager(cfg.Client.FastProxyClient, cfg.Server.HostGraphQL, cfg.Logger)
healthMgr := NewBackendHealthManager(cfg.Client.FastProxyClient, cfg.Server.HostGraphQL, "", cfg.Logger)
isHealthy := healthMgr.checkBackendHealth()
suite.True(isHealthy)
suite.GreaterOrEqual(suite.mockServerCalled.Load(), int32(1))
@@ -94,13 +86,13 @@ func (suite *ConnectionResilienceTestSuite) TestBackendHealthManager() {
suite.Run("health check failure", func() {
// Use invalid URL to simulate failure
healthMgr := NewBackendHealthManager(cfg.Client.FastProxyClient, "http://invalid-url:99999", cfg.Logger)
healthMgr := NewBackendHealthManager(cfg.Client.FastProxyClient, "http://invalid-url:99999", "", cfg.Logger)
isHealthy := healthMgr.checkBackendHealth()
suite.False(isHealthy)
})
suite.Run("startup readiness with healthy backend", func() {
healthMgr := NewBackendHealthManager(cfg.Client.FastProxyClient, cfg.Server.HostGraphQL, cfg.Logger)
healthMgr := NewBackendHealthManager(cfg.Client.FastProxyClient, cfg.Server.HostGraphQL, "", cfg.Logger)
err := healthMgr.WaitForBackendReady(10 * time.Second)
suite.NoError(err)
suite.True(healthMgr.IsHealthy())
@@ -108,7 +100,7 @@ func (suite *ConnectionResilienceTestSuite) TestBackendHealthManager() {
suite.Run("startup readiness timeout", func() {
// Use invalid URL to simulate backend not ready
healthMgr := NewBackendHealthManager(cfg.Client.FastProxyClient, "http://invalid-url:99999", cfg.Logger)
healthMgr := NewBackendHealthManager(cfg.Client.FastProxyClient, "http://invalid-url:99999", "", cfg.Logger)
err := healthMgr.WaitForBackendReady(2 * time.Second)
suite.Error(err)
suite.Contains(err.Error(), "did not become ready")
@@ -177,7 +169,7 @@ func (suite *ConnectionResilienceTestSuite) TestConnectionPoolManager() {
func (suite *ConnectionResilienceTestSuite) TestIntegratedHealthManagement() {
suite.Run("global initialization", func() {
// Initialize global instances
healthMgr := InitializeBackendHealth(cfg.Client.FastProxyClient, cfg.Server.HostGraphQL, cfg.Logger)
healthMgr := InitializeBackendHealth(cfg.Client.FastProxyClient, cfg.Server.HostGraphQL, "", cfg.Logger)
poolMgr := NewConnectionPoolManager(cfg.Client.FastProxyClient)
// Set global instances
@@ -194,7 +186,7 @@ func (suite *ConnectionResilienceTestSuite) TestIntegratedHealthManagement() {
// and may have already fired earlier in the process (e.g. via parseConfig in
// another test), in which case it returns whatever the global currently is —
// which TearDownTest above just nilled.
healthMgr := NewBackendHealthManager(cfg.Client.FastProxyClient, cfg.Server.HostGraphQL, cfg.Logger)
healthMgr := NewBackendHealthManager(cfg.Client.FastProxyClient, cfg.Server.HostGraphQL, "", cfg.Logger)
backendHealthManager = healthMgr
// Start health checking
@@ -272,7 +264,7 @@ func TestConnectionResilienceSuite(t *testing.T) {
// periodic checking — otherwise the backend could never be marked healthy
// again even after it recovers.
func (suite *ConnectionResilienceTestSuite) TestHealthChecksStartAfterStartupTimeout() {
bhm := NewBackendHealthManager(cfg.Client.FastProxyClient, "http://invalid-url:99999", cfg.Logger)
bhm := NewBackendHealthManager(cfg.Client.FastProxyClient, "http://invalid-url:99999", "", cfg.Logger)
err := bhm.WaitForBackendReady(200 * time.Millisecond)
suite.Error(err, "expected timeout for unreachable backend")