feat: complete remaining Go backend modules

backend/internal/orchestration/creation_test.go

@@ -0,0 +1,49 @@
+package orchestration
+
+import (
+	"context"
+	"encoding/json"
+	"errors"
+	"testing"
+
+	"git.nianxx.cn/wangxuming/NianAIGC/backend/internal/billing"
+	"git.nianxx.cn/wangxuming/NianAIGC/backend/internal/jobs"
+)
+
+func TestCreationCoordinatorDoesNotFailCreationWhenAtomicCommitOutcomeIsUnknown(t *testing.T) {
+	state := &commitUnknownCreationState{}
+	coordinator := &CreationCoordinator{charges: &chargeLedgerStub{}, state: state}
+	job := jobs.Job{
+		ID:           "job-1",
+		Capability:   "image.generate",
+		ReqKey:       "wanx",
+		Billing:      json.RawMessage(`{"status":"pending","amountFen":35}`),
+		UsageContext: json.RawMessage(`{"accountId":"account","organizationId":"org"}`),
+	}
+
+	_, _, err := coordinator.charge(context.Background(), job, false)
+	if err == nil || err.Error() != "charge generation job" {
+		t.Fatalf("err=%v, want generic infrastructure error", err)
+	}
+	if state.failCalls != 0 {
+		t.Fatalf("FailCreation calls=%d, want 0", state.failCalls)
+	}
+}
+
+type commitUnknownCreationState struct {
+	failCalls int
+}
+
+func (*commitUnknownCreationState) ChargeAndActivateCreation(context.Context, billing.ChargeRequest, json.RawMessage) (json.RawMessage, error) {
+	return nil, errors.Join(errors.New("commit response and reconciliation failed"), billing.ErrCommitOutcomeUnknown)
+}
+func (*commitUnknownCreationState) WriteBilling(context.Context, string, json.RawMessage) error {
+	return nil
+}
+func (*commitUnknownCreationState) ActivateCreation(context.Context, string, json.RawMessage) error {
+	return nil
+}
+func (s *commitUnknownCreationState) FailCreation(context.Context, jobs.Job) error {
+	s.failCalls++
+	return nil
+}