package decoders

import (
	"fmt"
	"reflect"
	"testing"
)

func TestGoodPacketHeaderChunkDecoding(t *testing.T) {
	testCases := []struct {
		description string
		bytes       []byte
		expected    PacketHeaderChunk
	}{
		{
			description: "PacketHeaderChunk",
			bytes: []byte{
				0, 0, 12, 0, 210, 2, 150, 73, 0, 0, 0, 0, 2, 3, 1, 123,
			},
			expected: PacketHeaderChunk{
				Chunk: Chunk{
					ChunkData: []byte{210, 2, 150, 73, 0, 0, 0, 0, 2, 3, 1, 123},
					Header:    ChunkHeader{DataLen: 12, Id: 0, HasSubchunks: false},
				},
				Data: PacketHeaderChunkData{
					PacketTimestamp:  1234567890,
					VersionHigh:      2,
					VersionLow:       3,
					FrameId:          1,
					FramePacketCount: 123,
				},
			},
		},
	}

	for _, testCase := range testCases {

		actual, err := DecodePacketHeaderChunk(testCase.bytes)

		if err != nil {
			t.Errorf("Test '%s' failed to decode chunk properly", testCase.description)
			fmt.Println(err)
		}

		if !reflect.DeepEqual(actual, testCase.expected) {
			t.Errorf("Test '%s' failed to decode chunk properly", testCase.description)
			fmt.Printf("expected: %+v\n", testCase.expected)
			fmt.Printf("actual: %+v\n", actual)
		}
	}
}