Function TestMigrateBodyAttachmentsMerge

db/attachment_test.go:1022–1159

TestMigrateBodyAttachmentsMerge will set up a document with attachments in both pre-2.5 and post-2.5 metadata, making sure that both attachments are preserved.

(t *testing.T)

// TestMigrateBodyAttachmentsMerge will set up a document with attachments in both pre-2.5 and post-2.5 metadata, making sure that both attachments are preserved.
func TestMigrateBodyAttachmentsMerge(t *testing.T) {
	base.SetUpTestLogging(t, base.LevelDebug, base.KeyCRUD)

	const docKey = "TestMigrateBodyAttachmentsMerge"

	db, ctx := setupTestDB(t)
	defer db.Close(ctx)
	collection, ctx := GetSingleDatabaseCollectionWithUser(ctx, t, db)

	// Put a document 2 attachments, to write attachment to the bucket
	rev1input := `{"_attachments": {"hello.txt": {"data":"aGVsbG8gd29ybGQ="},"bye.txt": {"data":"Z29vZGJ5ZSBjcnVlbCB3b3JsZA=="}}}`
	var body Body
	assert.NoError(t, base.JSONUnmarshal([]byte(rev1input), &body))
	_, _, err := collection.Put(ctx, "doc1", body)
	require.NoError(t, err, "Couldn't create document")

	gotbody, err := collection.Get1xRevBody(ctx, "doc1", "", false, []string{})
	require.NoError(t, err)
	require.Equal(t, AttachmentMap{
		"hello.txt": DocAttachment{
			Digest: "sha1-Kq5sNclPz7QV2+lfQIuc6R7oRu0=",
			Length: 11,
			Data:   []byte("hello world"),
			Revpos: 1,
		},
		"bye.txt": DocAttachment{
			Digest: "sha1-l+N7VpXGnoxMm8xfvtWPbz2YvDc=",
			Length: 19,
			Data:   []byte("goodbye cruel world"),
			Revpos: 1,
		},
	}, GetAttachmentsFrom1xBody(t, gotbody))

	// Create 2.1 style document - metadata in sync data, _attachments in body, referencing attachments created above
	bodyPre25 := `{
  "test":true,
  "_attachments": {
    "hello.txt": {
      "digest": "sha1-Kq5sNclPz7QV2+lfQIuc6R7oRu0=",
      "length": 11,
      "revpos": 1,
      "stub": true
    }
  }
}`

	syncData := `{
  "rev": "3-a",
  "sequence": 4,
  "recent_sequences": [
    4
  ],
  "history": {
    "revs": [
      "2-a",
      "3-a",
      "1-a"
    ],