package graph
import (
"testing"
"github.com/cayleygraph/quad"
)
func TestTransaction(t *testing.T) {
var tx *Transaction
// simples adds / removes
tx = NewTransaction()
tx.AddQuad(quad.Make("E", "follows", "F", nil))
tx.AddQuad(quad.Make("F", "follows", "G", nil))
tx.RemoveQuad(quad.Make("A", "follows", "Z", nil))
if len(tx.Deltas) != 3 {
t.Errorf("Expected 3 Deltas, have %d delta(s)", len(tx.Deltas))
}
// add, remove -> nothing
tx = NewTransaction()
tx.AddQuad(quad.Make("E", "follows", "G", nil))
tx.RemoveQuad(quad.Make("E", "follows", "G", nil))
if len(tx.Deltas) != 0 {
t.Errorf("Expected [add, remove]->[], have %d Deltas", len(tx.Deltas))
}
// remove, add -> nothing
tx = NewTransaction()
tx.RemoveQuad(quad.Make("E", "follows", "G", nil))
tx.AddQuad(quad.Make("E", "follows", "G", nil))
if len(tx.Deltas) != 0 {
t.Errorf("Expected [add, remove]->[], have %d delta(s)", len(tx.Deltas))
}
// add x2 -> add x1
tx = NewTransaction()
tx.AddQuad(quad.Make("E", "follows", "G", nil))
tx.AddQuad(quad.Make("E", "follows", "G", nil))
if len(tx.Deltas) != 1 {
t.Errorf("Expected [add, add]->[add], have %d delta(s)", len(tx.Deltas))
}
// remove x2 -> remove x1
tx = NewTransaction()
tx.RemoveQuad(quad.Make("E", "follows", "G", nil))
tx.RemoveQuad(quad.Make("E", "follows", "G", nil))
if len(tx.Deltas) != 1 {
t.Errorf("Expected [remove, remove]->[remove], have %d delta(s)", len(tx.Deltas))
}
// add, remove x2 -> remove x1
tx = NewTransaction()
tx.AddQuad(quad.Make("E", "follows", "G", nil))
tx.RemoveQuad(quad.Make("E", "follows", "G", nil))
tx.RemoveQuad(quad.Make("E", "follows", "G", nil))
if len(tx.Deltas) != 1 {
t.Errorf("Expected [add, remove, remove]->[remove], have %d delta(s)", len(tx.Deltas))
}
}