Agent-System/internal/app/docflow/commands_test.go

package docflow

import (
	"context"
	"fmt"
	"sync"
	"testing"

	"chat-agent-system/internal/app/uow"
	"chat-agent-system/internal/docgov"
	"chat-agent-system/internal/docrevision"
)

func TestHumanEditCharacterizationSameETagOneWinner(t *testing.T) {
	ctx := context.Background()
	rev := docrevision.NewService(nil)
	st, err := rev.OpenTemplateVersion(ctx, "doc_flow_etag", "# base\n", docrevision.ActorSnapshot{}, 1, "")
	if err != nil {
		t.Fatal(err)
	}
	cmds := &Commands{Rev: rev}
	var wg sync.WaitGroup
	var mu sync.Mutex
	wins, losses := 0, 0
	for i := 0; i < 8; i++ {
		wg.Add(1)
		go func(i int) {
			defer wg.Done()
			_, err := cmds.HumanEdit(ctx, Principal{UserID: int64(i + 1)}, HumanEditCommand{
				DocID: "doc_flow_etag",
				Request: docrevision.HumanRevisionRequest{
					DocID: "doc_flow_etag", Markdown: fmt.Sprintf("# base\n\nedit %d\n", i),
					ExpectedHeadSnapshot: &st.HeadSnapshotID, ExpectedRevisionNo: &st.HeadRevisionNo,
					IdempotencyKey: fmt.Sprintf("flow-%d", i), ActorUserID: int64(i + 1), LifecycleState: "drafting",
				},
			})
			mu.Lock()
			defer mu.Unlock()
			if err == nil {
				wins++
			} else if err == docrevision.ErrHeadConflict {
				losses++
			} else {
				t.Errorf("unexpected %v", err)
			}
		}(i)
	}
	wg.Wait()
	if wins != 1 || losses != 7 {
		t.Fatalf("wins=%d losses=%d", wins, losses)
	}
	got, err := rev.GetRevisionState(ctx, "doc_flow_etag")
	if err != nil || got.HeadRevisionNo != 1 {
		t.Fatalf("head=%+v err=%v", got, err)
	}
}

func TestApproveRejectCharacterizationOneTerminal(t *testing.T) {
	ctx := context.Background()
	gov := docgov.NewGovernanceEngine(nil)
	doc, err := gov.CreateOrGetDocument(ctx, "doc_flow_appr", 1, "intake", "t", "V0.5_feasibility", "", 1, "A", 2, "R", 3, "P")
	if err != nil {
		t.Fatal(err)
	}
	if _, err := gov.SubmitForReview(ctx, doc.DocID, 1, docgov.RoleAuthor, "A"); err != nil {
		t.Fatal(err)
	}
	if _, err := gov.ReviewApprove(ctx, doc.DocID, 2, docgov.RoleReviewer, "R", "ok"); err != nil {
		t.Fatal(err)
	}
	cmds := &Commands{Gov: gov}
	var wg sync.WaitGroup
	results := make(chan string, 2)
	wg.Add(2)
	go func() {
		defer wg.Done()
		doc, err := cmds.Approve(ctx, Principal{UserID: 3, Role: docgov.RoleApprover, Name: "P"}, DecisionCommand{DocID: doc.DocID})
		if err == nil && doc != nil {
			results <- string(doc.CurrentState)
		} else {
			results <- "err"
		}
	}()
	go func() {
		defer wg.Done()
		doc, err := cmds.Reject(ctx, Principal{UserID: 3, Role: docgov.RoleApprover, Name: "P"}, DecisionCommand{
			DocID: doc.DocID, RejectReason: "no", RollbackTo: docgov.StateDrafting,
		})
		if err == nil && doc != nil {
			results <- string(doc.CurrentState)
		} else {
			results <- "err"
		}
	}()
	wg.Wait()
	close(results)
	var states []string
	for s := range results {
		states = append(states, s)
	}
	if len(states) != 2 {
		t.Fatalf("%v", states)
	}
	approved, rejected := 0, 0
	for _, s := range states {
		switch s {
		case string(docgov.StateApproved):
			approved++
		case string(docgov.StateDrafting), string(docgov.StateRejected):
			rejected++
		}
	}
	if approved+rejected != 1 {
		t.Fatalf("expected one legal terminal, got %v", states)
	}
}

func TestIdempotentHumanEditSameDigest(t *testing.T) {
	ctx := context.Background()
	rev := docrevision.NewService(nil)
	st, err := rev.OpenTemplateVersion(ctx, "doc_flow_idemp", "# base\n", docrevision.ActorSnapshot{}, 1, "")
	if err != nil {
		t.Fatal(err)
	}
	cmds := &Commands{Rev: rev}
	req := docrevision.HumanRevisionRequest{
		DocID: "doc_flow_idemp", Markdown: "# base\n\nedit\n",
		ExpectedHeadSnapshot: &st.HeadSnapshotID, ExpectedRevisionNo: &st.HeadRevisionNo,
		IdempotencyKey: "same-key", ActorUserID: 1, LifecycleState: "drafting",
	}
	first, err := cmds.HumanEdit(ctx, Principal{UserID: 1}, HumanEditCommand{DocID: req.DocID, Request: req})
	if err != nil {
		t.Fatal(err)
	}
	second, err := cmds.HumanEdit(ctx, Principal{UserID: 1}, HumanEditCommand{DocID: req.DocID, Request: req})
	if err != nil {
		t.Fatal(err)
	}
	if first.State.HeadSnapshotID != second.State.HeadSnapshotID {
		t.Fatal("same key+digest must replay")
	}
	req.Markdown = "# base\n\nother digest\n"
	if _, err := cmds.HumanEdit(ctx, Principal{UserID: 1}, HumanEditCommand{DocID: req.DocID, Request: req}); err != docrevision.ErrIdempotencyConflict {
		t.Fatalf("different digest: %v", err)
	}
}

func TestReauthDeniesWrongAuthor(t *testing.T) {
	ctx := context.Background()
	gov := docgov.NewGovernanceEngine(nil)
	if _, err := gov.CreateOrGetDocument(ctx, "doc_flow_authz", 1, "intake", "t", "V0.5_feasibility", "", 1, "A", 2, "R", 3, "P"); err != nil {
		t.Fatal(err)
	}
	rev := docrevision.NewService(nil)
	st, err := rev.OpenTemplateVersion(ctx, "doc_flow_authz", "# base\n", docrevision.ActorSnapshot{}, 1, "")
	if err != nil {
		t.Fatal(err)
	}
	cmds := &Commands{Gov: gov, Rev: rev}
	_, err = cmds.HumanEdit(ctx, Principal{UserID: 99}, HumanEditCommand{
		DocID: "doc_flow_authz",
		Request: docrevision.HumanRevisionRequest{
			DocID: "doc_flow_authz", Markdown: "# base\n\nnope\n",
			ExpectedHeadSnapshot: &st.HeadSnapshotID, ExpectedRevisionNo: &st.HeadRevisionNo,
			IdempotencyKey: "authz-deny", ActorUserID: 99, LifecycleState: "drafting",
		},
	})
	if err != uow.ErrPermissionDenied {
		t.Fatalf("want permission denied, got %v", err)
	}
}