add test means

plugin/dapp/unfreeze/executor/means_test.go

-package main
+package executor
 
-func main() {
+import (
+	"github.com/stretchr/testify/assert"
+	"testing"
 
+	pty "github.com/33cn/plugin/plugin/dapp/unfreeze/types"
+)
+
+func TestCalcFrozen(t *testing.T) {
+	m, err := newMeans("LeftProportion")
+	assert.Nil(t, err)
+	assert.NotNil(t, m)
+
+	cases := []struct {
+		start         int64
+		now           int64
+		period        int64
+		total         int64
+		tenThousandth int64
+		expect        int64
+	}{
+		{10000, 10001, 10, 10000, 2, 9998},
+		{10000, 10011, 10, 10000, 2, 9996},
+		{10000, 10001, 10, 1e17, 2, 9998 * 1e13},
+		{10000, 10011, 10, 1e17, 2, 9998 * 9998 * 1e9},
+	}
+
+	for _, c := range cases {
+		c := c
+		t.Run("test LeftProportion", func(t *testing.T) {
+			create := pty.UnfreezeCreate{
+				StartTime:   c.start,
+				AssetExec:   "coins",
+				AssetSymbol: "bty",
+				TotalCount:  c.total,
+				Beneficiary: "x",
+				Means:       "LeftProportion",
+				MeansOpt: &pty.UnfreezeCreate_LeftProportion{
+					LeftProportion: &pty.LeftProportion{
+						Period:        c.period,
+						TenThousandth: c.tenThousandth,
+					},
+				},
+			}
+			u := &pty.Unfreeze{
+				TotalCount: c.total,
+				Means:      "LeftProportion",
+				StartTime:  c.start,
+				MeansOpt: &pty.Unfreeze_LeftProportion{
+					LeftProportion: &pty.LeftProportion{
+						Period:        c.period,
+						TenThousandth: c.tenThousandth,
+					},
+				},
+			}
+			u, err = m.setOpt(u, &create)
+			assert.Nil(t, err)
+
+			f, err := m.calcFrozen(u, c.now)
+			assert.Nil(t, err)
+
+			assert.Equal(t, c.expect, f)
+
+		})
+	}
 }