Add some more tests and implement getElection

internal/mappers/elections.go

@@ -0,0 +1,19 @@
+package mappers
+
+import (
+	api "code.dlmw.ch/dlmw/qv/internal"
+	"code.dlmw.ch/dlmw/qv/internal/models"
+)
+
+func ElectionResponse(election *models.Election) *api.Election {
+	return &api.Election{
+		Id:             election.ID,
+		Name:           election.Name,
+		Tokens:         election.Tokens,
+		AreVotersKnown: election.AreVotersKnown,
+		MaxVoters:      election.MaxVoters,
+		CreatedAt:      election.CreatedAt.String(),
+		ExpiresAt:      election.ExpiresAt.String(),
+		Choices:        election.Choices,
+	}
+}