entity/dag: proper base operation for simplified implementation

- reduce boilerplace necessary to implement an operation
- consolidate what an operation is in the core, which in turn pave the way for a generic cache layer mechanism
- avoid the previously complex unmarshalling process
- support operation metadata from the core
- simplified testing

1 files changed, 4 insertions, 27 deletions

diff --git a/bug/op_set_title_test.go b/bug/op_set_title_test.go
index 2a227709..8b45c74e 100644
--- a/bug/op_set_title_test.go
+++ b/bug/op_set_title_test.go
@@ -1,37 +1,14 @@
 package bug
 
 import (
-	"encoding/json"
 	"testing"
-	"time"
-
-	"github.com/stretchr/testify/require"
 
+	"github.com/MichaelMure/git-bug/entity/dag"
 	"github.com/MichaelMure/git-bug/identity"
-	"github.com/MichaelMure/git-bug/repository"
 )
 
 func TestSetTitleSerialize(t *testing.T) {
-	repo := repository.NewMockRepo()
-
-	rene, err := identity.NewIdentity(repo, "René Descartes", "rene@descartes.fr")
-	require.NoError(t, err)
-
-	unix := time.Now().Unix()
-	before := NewSetTitleOp(rene, unix, "title", "was")
-
-	data, err := json.Marshal(before)
-	require.NoError(t, err)
-
-	var after SetTitleOperation
-	err = json.Unmarshal(data, &after)
-	require.NoError(t, err)
-
-	// enforce creating the ID
-	before.Id()
-
-	// Replace the identity as it's not serialized
-	after.Author_ = rene
-
-	require.Equal(t, before, &after)
+	dag.SerializeRoundTripTest(t, func(author identity.Interface, unixTime int64) *SetTitleOperation {
+		return NewSetTitleOp(author, unixTime, "title", "was")
+	})
 }