feat: complete contract-driven business development and MySQL integration

scripts/testdata/mysqlGenerated_test.go

@@ -0,0 +1,76 @@
+package main
+
+import (
+	"bytes"
+	"context"
+	"crypto/tls"
+	"errors"
+	"strings"
+	"testing"
+	"time"
+
+	"example.com/mysqlAcceptance/internal/config"
+	"example.com/mysqlAcceptance/internal/svc"
+	"git.yuntuo.hk/k2safe/go-omni/logx"
+)
+
+func TestGeneratedMySQLConfigurationAndLifecycle(t *testing.T) {
+	cfg, err := config.Load("etc/config.yaml")
+	if err != nil {
+		t.Fatal(err)
+	}
+	if cfg.Database.User != "omni_test" || cfg.Database.TLS.ServerName != "localhost" || cfg.Database.Pool.MaxOpenConns != 2 {
+		t.Fatal("structured environment overlay was not applied")
+	}
+	ctx, cancel := context.WithTimeout(context.Background(), 10*time.Second)
+	defer cancel()
+	var logs bytes.Buffer
+	logger, err := logx.New(logx.Config{Writer: &logs})
+	if err != nil {
+		t.Fatal(err)
+	}
+	defer logger.Close()
+	first, err := svc.New(ctx, logger, cfg)
+	if err != nil {
+		t.Fatal(err)
+	}
+	defer first.Close()
+	second, err := svc.New(ctx, logger, cfg)
+	if err != nil {
+		t.Fatal(err)
+	}
+	defer second.Close()
+	if first.DB == second.DB {
+		t.Fatal("contexts share a pool")
+	}
+	if err = first.DB.Health(ctx); err != nil {
+		t.Fatal(err)
+	}
+	var key, cipher string
+	if err = first.DB.QueryRowContext(ctx, "SHOW SESSION STATUS LIKE 'Ssl_cipher'").Scan(&key, &cipher); err != nil || cipher == "" {
+		t.Fatal("generated pool has no TLS", err)
+	}
+	if err = first.Finish(nil); err != nil {
+		t.Fatal(err)
+	}
+	if err = first.Finish(nil); err != nil {
+		t.Fatal("cleanup not idempotent", err)
+	}
+	if err = first.DB.PingContext(ctx); err == nil {
+		t.Fatal("dependency pool remains open")
+	}
+	if err = second.DB.Health(ctx); err != nil {
+		t.Fatal("another context was closed", err)
+	}
+	bad := cfg
+	bad.Database.TLS.ServerName = "wrong.invalid"
+	failed, err := svc.New(ctx, logger, bad)
+	var verify *tls.CertificateVerificationError
+	if failed != nil || !errors.As(err, &verify) {
+		t.Fatal("TLS failure not propagated", err)
+	}
+	logger.Info("logger remains usable")
+	if !strings.Contains(logs.String(), "logger remains usable") {
+		t.Fatal("borrowed logger was closed")
+	}
+}