chore: establish local platform baseline

internal/app/app_integration_test.go

@@ -0,0 +1,71 @@
+package app
+
+import (
+	"context"
+	"strings"
+	"testing"
+	"time"
+
+	"data-terminal-cloud/internal/cache"
+	"data-terminal-cloud/internal/config"
+	"data-terminal-cloud/internal/ratelimit"
+)
+
+func TestCallbacksApplicationStartsAndShutsDown(t *testing.T) {
+	t.Setenv("APP_ENV", "test")
+	t.Setenv("HTTP_ADDR", "127.0.0.1:0")
+	t.Setenv("DATABASE_URL", "postgres://voice:voice_dev_only@localhost:55432/voice_platform?sslmode=disable")
+	t.Setenv("REDIS_ADDR", "localhost:56379")
+	t.Setenv("SHUTDOWN_TIMEOUT", "1s")
+	t.Setenv("DEPENDENCY_TIMEOUT", "1s")
+	ctx, cancel := context.WithTimeout(context.Background(), 300*time.Millisecond)
+	defer cancel()
+	if err := Run(ctx, "callbacks"); err != nil {
+		t.Fatalf("callbacks lifecycle: %v", err)
+	}
+}
+
+func TestApplicationRejectsInvalidConfiguration(t *testing.T) {
+	t.Setenv("REDIS_DB", "not-an-integer")
+	if err := Run(context.Background(), "callbacks"); err == nil || !strings.Contains(err.Error(), "load configuration") {
+		t.Fatalf("invalid configuration error=%v", err)
+	}
+}
+
+func TestLoggerLevelsAndRateLimiterAdapter(t *testing.T) {
+	for _, level := range []string{"debug", "info", "warn", "error"} {
+		logger := newLogger(config.Config{ServiceName: "app-integration", LogLevel: level})
+		if logger == nil {
+			t.Fatalf("nil logger for level %s", level)
+		}
+	}
+	redisClient := cache.Open("localhost:56379", "", 0)
+	defer redisClient.Close()
+	limiter, err := ratelimit.NewPolicies(redisClient, "app-integration", map[string]ratelimit.Policy{"network": {RatePerSecond: 100, Burst: 2}})
+	if err != nil {
+		t.Fatal(err)
+	}
+	result, err := (rateLimiterAdapter{limiter: limiter}).Allow(context.Background(), "network", "synthetic-client")
+	if err != nil || !result.Allowed || result.Remaining < 0 {
+		t.Fatalf("rate limit result=%+v err=%v", result, err)
+	}
+}
+
+func TestExternalProbeChecksIncludeManagedContentSafetyWithoutCallingIt(t *testing.T) {
+	cfg := config.Config{
+		ServiceName: "worker", ContentSafetyProvider: "managed_http",
+		ContentSafetyEndpoint: "https://content-safety.example.com/v1/classify",
+	}
+	checks, err := externalProbeChecks(cfg)
+	if err != nil {
+		t.Fatal(err)
+	}
+	if len(checks) != 1 || checks["content_safety_tls"] == nil {
+		t.Fatalf("unexpected external probes: %+v", checks)
+	}
+	cfg.ContentSafetyProvider = "local"
+	checks, err = externalProbeChecks(cfg)
+	if err != nil || len(checks) != 0 {
+		t.Fatalf("local content safety must not create an external probe: checks=%+v err=%v", checks, err)
+	}
+}