mv /ana, /ledger to /src/

src/ledger/deltas_test.go

@@ -0,0 +1,67 @@
+package ledger
+
+import "testing"
+
+func TestDeltas(t *testing.T) {
+	t.Run("Groups", func(t *testing.T) {
+		deltas := Deltas{
+			{Name: "a1"},
+			{Name: "b1"},
+			{Name: "b2"},
+			{Name: "b3"},
+		}
+
+		deltas = deltas.Group(GroupName("^."))
+		if len(deltas) != 4 {
+			t.Error(len(deltas))
+		}
+		if deltas[0].Name != "a" {
+			t.Error(deltas[0].Name)
+		}
+		if deltas[1].Name != "b" {
+			t.Error(deltas[1].Name)
+		}
+		if deltas[2].Name != "b" {
+			t.Error(deltas[2].Name)
+		}
+		if deltas[3].Name != "b" {
+			t.Error(deltas[3].Name)
+		}
+	})
+
+	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"][""][""])
+		}
+	})
+}