cmd/mbf: cancel remote cure

This exposes the new fine-grained cancel API in cmd/mbf.

Signed-off-by: Ophestra <cat@gensokyo.uk>

cmd/mbf/daemon_test.go

@@ -9,6 +9,8 @@ import (
 	"net"
 	"os"
 	"path/filepath"
+	"slices"
+	"strings"
 	"testing"
 	"time"
 
@@ -104,11 +106,17 @@ func TestDaemon(t *testing.T) {
 		}
 	}()
 
+	if err = cancelRemote(ctx, &addr, pkg.NewFile("nonexistent", nil)); err != nil {
+		t.Fatalf("cancelRemote: error = %v", err)
+	}
+
+	// keep this last for synchronisation
 	var p *check.Absolute
 	p, err = cureRemote(ctx, &addr, pkg.NewFile("check", []byte{0}), 0)
 	if err != nil {
 		t.Fatalf("cureRemote: error = %v", err)
 	}
+
 	cancel()
 	<-done
 
@@ -117,9 +125,17 @@ func TestDaemon(t *testing.T) {
 		t.Errorf("cureRemote: %s, want %s", got, want)
 	}
 
-	const wantLog = `daemon: fulfilled artifact fiZf-ZY_Yq6qxJNrHbMiIPYCsGkUiKCRsZrcSELXTqZWtCnESlHmzV5ThhWWGGYG
-`
-	if gotLog := buf.String(); gotLog != wantLog {
-		t.Errorf("serve: logged\n%s\nwant\n%s", gotLog, wantLog)
+	wantLog := []string{
+		"",
+		"daemon: attempting to cancel invalid artifact kQm9fmnCmXST1-MMmxzcau2oKZCXXrlZydo4PkeV5hO_2PKfeC8t98hrbV_ZZx_j",
+		"daemon: fulfilled artifact fiZf-ZY_Yq6qxJNrHbMiIPYCsGkUiKCRsZrcSELXTqZWtCnESlHmzV5ThhWWGGYG",
+	}
+	gotLog := strings.Split(buf.String(), "\n")
+	slices.Sort(gotLog)
+	if !slices.Equal(gotLog, wantLog) {
+		t.Errorf(
+			"serve: logged\n%s\nwant\n%s",
+			strings.Join(gotLog, "\n"), strings.Join(wantLog, "\n"),
+		)
 	}
 }