package parsing

import (
	"math/big"
	"os"
	"testing"
)

func TestCliargs_Parse(t *testing.T) {
	tests := []struct {
		name    string
		args    []string
		want    *big.Int
		wantErr bool
	}{
		{
			name:    "Test with valid integer",
			args:    []string{"", "10"}, // the first argument is the program name
			want:    big.NewInt(10),
			wantErr: false,
		},
		{
			name:    "Test with non-integer",
			args:    []string{"", "abc"}, // the first argument is the program name
			want:    nil,
			wantErr: true,
		},
	}

	for _, tt := range tests {
		t.Run(tt.name, func(t *testing.T) {
			os.Args = tt.args
			parser := &Cliargs{}
			got, err := parser.Parse()
			if (err != nil) != tt.wantErr {
				t.Errorf("Parse() error = %v, wantErr %v", err, tt.wantErr)
				return
			}
			if !tt.wantErr && got.Cmp(tt.want) != 0 {
				t.Errorf("Parse() = %v, want %v", got, tt.want)
			}
		})
	}
}