fix: terminal pretty printer also prints BigInt's value/amount

hide BigInt and assume it is a "Balance" (possible liability)

aeternity/terminal.go

@@ -8,6 +8,7 @@ import (
 	"time"
 
 	"github.com/aeternity/aepp-sdk-go/generated/models"
+	"github.com/aeternity/aepp-sdk-go/utils"
 )
 
 func times(str string, n int) (out string) {
@@ -67,13 +68,18 @@ func printIf(title string, v interface{}) {
 		case reflect.Interface:
 			p(title, n, v.Elem(), dept)
 		case reflect.Struct:
-			PpT(dept, fmt.Sprintf("<%s>", v.Type().Name()))
-			dept++
-			for i := 0; i < v.NumField(); i++ {
-				p("", v.Type().Field(i).Name, v.Field(i), dept)
+			if v.Type().Name() == "BigInt" {
+				vc := v.Interface().(utils.BigInt)
+				PpI(dept, "Balance", vc.Text(10))
+			} else {
+				PpT(dept, fmt.Sprintf("<%s>", v.Type().Name()))
+				dept++
+				for i := 0; i < v.NumField(); i++ {
+					p("", v.Type().Field(i).Name, v.Field(i), dept)
+				}
+				dept--
+				PpT(dept, fmt.Sprintf("</%s>", v.Type().Name()))
 			}
-			dept--
-			PpT(dept, fmt.Sprintf("</%s>", v.Type().Name()))
 		case reflect.Slice:
 			for i := 0; i < v.Len(); i++ {
 				p("", "", v.Index(i), dept)

aeternity/terminal_test.go

@@ -0,0 +1,50 @@
+package aeternity
+
+import (
+	"fmt"
+	"io/ioutil"
+	"os"
+	"strings"
+	"testing"
+
+	"github.com/aeternity/aepp-sdk-go/utils"
+)
+
+func Test_printIf_BigIntBalancePrinted(t *testing.T) {
+	type args struct {
+		title string
+		v     *utils.BigInt
+	}
+	tests := []struct {
+		name string
+		args args
+	}{
+		{
+			name: "Test that printIf() recognizes the utils.BigInt special case",
+			args: args{
+				title: "Title",
+				v:     utils.NewBigIntFromUint64(1377),
+			},
+		},
+	}
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			rescueStdout := os.Stdout
+			r, w, _ := os.Pipe()
+			os.Stdout = w
+
+			printIf(tt.args.title, tt.args.v)
+
+			w.Close()
+			out, _ := ioutil.ReadAll(r)
+			outs := string(out)
+			os.Stdout = rescueStdout
+			fmt.Println("DEBUG", outs)
+
+			expected := tt.args.v.Text(10)
+			if !strings.Contains(outs, expected) {
+				t.Fatalf("The terminal pretty printer printIf did not print out the value of the BigInt, which was %s", expected)
+			}
+		})
+	}
+}