package ledger

import "testing"

func TestDeltas(t *testing.T) {
	t.Run("balances", func(t *testing.T) {
		deltas := Deltas{
			{Name: "a", Value: 0},
			{Name: "b", Value: 1},
			{Name: "b", Value: -.999999999999999999999999},
			{Name: "b", Value: 1.3},
		}

		balances := deltas.Balances()
		if len(balances) != 1 {
			t.Error(len(balances), balances)
		}
		if balances["b"][""] != 1.3 {
			t.Error(balances["b"])
		}
	})

	t.Run("register", func(t *testing.T) {
		deltas := Deltas{
			{Date: "a", Value: 0.1},
			{Date: "a", Value: 2.2},
			{Date: "b", Value: 4.3},
		}
		got := deltas.Register()
		t.Logf("%+v", got)
		if len(got) != 2 {
			t.Error(len(got))
		}
		if int(10*got["a"][""][""]) != 23 {
			t.Error(got["a"][""][""])
		}
		if int(10*got["b"][""][""]) != 66 {
			t.Error(got["b"][""][""])
		}
	})
}