Add tests

Author: silvanocerza

discovery_test.go

@@ -0,0 +1,66 @@
+//
+// This file is part of dummy-discovery.
+//
+// Copyright 2021 ARDUINO SA (http://www.arduino.cc/)
+//
+// This software is released under the GNU General Public License version 3,
+// which covers the main part of arduino-cli.
+// The terms of this license can be found at:
+// https://www.gnu.org/licenses/gpl-3.0.en.html
+//
+// You can be released from the requirements of the above licenses by purchasing
+// a commercial license. Buying such a license is mandatory if you want to modify or
+// otherwise use the software for commercial activities involving the Arduino
+// software without disclosing the source code of your own applications. To purchase
+// a commercial license, send an email to [email protected].
+//
+
+package discovery
+
+import (
+	"testing"
+
+	"github.com/arduino/arduino-cli/executils"
+	"github.com/stretchr/testify/require"
+)
+
+func runDummyDiscovery(t *testing.T) *executils.Process {
+	discoveryDir := "dummy-discovery"
+	// Build dummy-discovery for testing
+	builder, err := executils.NewProcess("go", "build")
+	require.NoError(t, err)
+	builder.SetDir(discoveryDir)
+	require.NoError(t, builder.Run())
+	discovery, err := executils.NewProcess("./dummy-discovery")
+	require.NoError(t, err)
+	discovery.SetDir(discoveryDir)
+	return discovery
+}
+
+func TestDiscoveryStdioHandling(t *testing.T) {
+	discovery := runDummyDiscovery(t)
+
+	stdout, err := discovery.StdoutPipe()
+	require.NoError(t, err)
+	stdin, err := discovery.StdinPipe()
+	require.NoError(t, err)
+
+	require.NoError(t, discovery.Start())
+	defer discovery.Kill()
+
+	n, err := stdin.Write([]byte("quit\n"))
+	require.Greater(t, n, 0)
+	require.NoError(t, err)
+	output := [1024]byte{}
+	// require.NoError(t, discovery.Wait())
+	n, err = stdout.Read(output[:])
+	require.Greater(t, n, 0)
+	require.NoError(t, err)
+
+	expectedOutput := `{
+  "eventType": "quit",
+  "message": "OK"
+}
+`
+	require.Equal(t, expectedOutput, string(output[:n]))
+}

go.mod

@@ -2,4 +2,8 @@ module github.com/arduino/pluggable-discovery-protocol-handler/v2
 
 go 1.16
 
-require github.com/arduino/go-properties-orderedmap v1.4.0
+require (
+	github.com/arduino/arduino-cli v0.0.0-20211123110800-c756a0f1305d // indirect
+	github.com/arduino/go-properties-orderedmap v1.6.0
+	github.com/stretchr/testify v1.7.0 // indirect
+)