test balances push

ledger/balances_test.go

@@ -0,0 +1,19 @@
+package ledger
+
+import "testing"
+
+func TestBalances(t *testing.T) {
+	t.Run("push", func(t *testing.T) {
+		b := make(Balances)
+		b.Push(Delta{Name: "x", Currency: "y", Value: 0.1})
+		b.Push(Delta{Name: "x", Currency: "y", Value: 1.2})
+		b.Push(Delta{Name: "x", Currency: "z", Value: 2.3})
+		ba := b["x"]
+		if ba["y"] != 1.3 {
+			t.Error(ba["y"])
+		}
+		if ba["z"] != 2.3 {
+			t.Error(ba["z"])
+		}
+	})
+}