github.com/arduino/arduino-cloud-cli@v0.0.0-20240517070944-e7a449561083/internal/serial/serial_test.go (about)

     1  // This file is part of arduino-cloud-cli.
     2  //
     3  // Copyright (C) 2021 ARDUINO SA (http://www.arduino.cc/)
     4  //
     5  // This program is free software: you can redistribute it and/or modify
     6  // it under the terms of the GNU Affero General Public License as published
     7  // by the Free Software Foundation, either version 3 of the License, or
     8  // (at your option) any later version.
     9  //
    10  // This program is distributed in the hope that it will be useful,
    11  // but WITHOUT ANY WARRANTY; without even the implied warranty of
    12  // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    13  // GNU Affero General Public License for more details.
    14  //
    15  // You should have received a copy of the GNU Affero General Public License
    16  // along with this program.  If not, see <https://www.gnu.org/licenses/>.
    17  
    18  package serial
    19  
    20  import (
    21  	"bytes"
    22  	"context"
    23  	"testing"
    24  
    25  	"github.com/arduino/arduino-cloud-cli/internal/serial/mocks"
    26  	"github.com/stretchr/testify/mock"
    27  )
    28  
    29  func TestSendReceive(t *testing.T) {
    30  	mockPort := &mocks.Port{}
    31  	mockSerial := &Serial{mockPort}
    32  
    33  	want := []byte{1, 2, 3}
    34  	resp := encode(Response, want)
    35  	respIdx := 0
    36  
    37  	mockRead := func(msg []uint8) int {
    38  		if respIdx >= len(resp) {
    39  			return 0
    40  		}
    41  		copy(msg, resp[respIdx:respIdx+2])
    42  		respIdx += 2
    43  		return 2
    44  	}
    45  
    46  	mockPort.On("Write", mock.AnythingOfType("[]uint8")).Return(0, nil)
    47  	mockPort.On("Read", mock.AnythingOfType("[]uint8")).Return(mockRead, nil)
    48  
    49  	res, err := mockSerial.SendReceive(context.TODO(), BeginStorage, []byte{1, 2})
    50  	if err != nil {
    51  		t.Error(err)
    52  	}
    53  
    54  	if !bytes.Equal(res, want) {
    55  		t.Errorf("Expected %v but received %v", want, res)
    56  	}
    57  }
    58  
    59  func TestSend(t *testing.T) {
    60  	mockPort := &mocks.Port{}
    61  	mockSerial := &Serial{mockPort}
    62  	mockPort.On("Write", mock.AnythingOfType("[]uint8")).Return(0, nil)
    63  
    64  	payload := []byte{1, 2}
    65  	cmd := SetDay
    66  	want := []byte{msgStart[0], msgStart[1], 1, 0, 5, 10, 1, 2, 143, 124, msgEnd[0], msgEnd[1]}
    67  
    68  	err := mockSerial.Send(context.TODO(), cmd, payload)
    69  	if err != nil {
    70  		t.Error(err)
    71  	}
    72  
    73  	mockPort.AssertCalled(t, "Write", want)
    74  }
    75  
    76  func TestEncode(t *testing.T) {
    77  	tests := []struct {
    78  		name string
    79  		msg  []byte
    80  		want []byte
    81  	}{
    82  		{
    83  			name: "begin-storage",
    84  			msg:  []byte{byte(BeginStorage)},
    85  			want: []byte{msgStart[0], msgStart[1], 1, 0, 3, 6, 0x95, 0x4e, msgEnd[0], msgEnd[1]},
    86  		},
    87  
    88  		{
    89  			name: "set-year",
    90  			msg:  append([]byte{byte(SetYear)}, []byte("2021")...),
    91  			want: []byte{msgStart[0], msgStart[1], 1, 0, 7, 0x8, 0x32, 0x30, 0x32, 0x31, 0xc3, 0x65, msgEnd[0], msgEnd[1]},
    92  		},
    93  	}
    94  	for _, tt := range tests {
    95  		t.Run(tt.name, func(t *testing.T) {
    96  			got := encode(Cmd, tt.msg)
    97  			if !bytes.Equal(tt.want, got) {
    98  				t.Errorf("Expected %v, received %v", tt.want, got)
    99  			}
   100  		})
   101  	}
   102  }