add external vm/matrix tests

testdata/matrix.txt

@@ -0,0 +1,4 @@
+Point(ASIO128.IN[1..4],ASIO128.OUT[1]).dBGain = -3
+Point(ASIO128.IN[1..4],ASIO128.OUT[2]).dBGain = -3
+Point(ASIO128.IN[1..4],ASIO128.OUT[1]).Mute = 1
+Point(ASIO128.IN[1..4],ASIO128.OUT[2]).Mute = 1

testdata/vm.txt

@@ -0,0 +1,3 @@
+strip[0].mute=1;strip[0].mono=0
+strip[1].mute=0;strip[1].mono=1
+bus[3].eq.On=0

vbantxt_test.go

@@ -0,0 +1,42 @@
+package vbantxt_test
+
+import (
+	"bufio"
+	"bytes"
+	_ "embed"
+	"testing"
+
+	"github.com/onyx-and-iris/vbantxt"
+	"github.com/stretchr/testify/require"
+)
+
+//go:embed testdata/vm.txt
+var vm []byte
+
+//go:embed testdata/matrix.txt
+var matrix []byte
+
+func run(t *testing.T, client *vbantxt.VbanTxt, script []byte) {
+	t.Helper()
+
+	r := bytes.NewReader(script)
+	scanner := bufio.NewScanner(r)
+	for scanner.Scan() {
+		err := client.Send(scanner.Text())
+		require.NoError(t, err)
+	}
+}
+
+func TestSendVm(t *testing.T) {
+	client, err := vbantxt.New("vm.local", 6980, "onyx")
+	require.NoError(t, err)
+
+	run(t, client, vm)
+}
+
+func TestSendMatrix(t *testing.T) {
+	client, err := vbantxt.New("vm.local", 6990, "onyx")
+	require.NoError(t, err)
+
+	run(t, client, matrix)
+}