Added integration test

Author: cmaglie

internal/integrationtest/arduino-cli.go

@@ -190,6 +190,12 @@ func (cli *ArduinoCLI) Run(args ...string) ([]byte, []byte, error) {
 	return cli.RunWithCustomEnv(cli.cliEnvVars, args...)
 }
 
+// RunWithContext executes the given arduino-cli command with the given context and returns the output.
+// If the context is canceled, the command is killed.
+func (cli *ArduinoCLI) RunWithContext(ctx context.Context, args ...string) ([]byte, []byte, error) {
+	return cli.RunWithCustomEnvContext(ctx, cli.cliEnvVars, args...)
+}
+
 // GetDefaultEnv returns a copy of the default execution env used with the Run method.
 func (cli *ArduinoCLI) GetDefaultEnv() map[string]string {
 	res := map[string]string{}
@@ -324,8 +330,13 @@ func (cli *ArduinoCLI) InstallMockedAvrdude(t *testing.T) {
 
 // RunWithCustomEnv executes the given arduino-cli command with the given custom env and returns the output.
 func (cli *ArduinoCLI) RunWithCustomEnv(env map[string]string, args ...string) ([]byte, []byte, error) {
+	return cli.RunWithCustomEnvContext(context.Background(), env, args...)
+}
+
+// RunWithCustomEnv executes the given arduino-cli command with the given custom env and returns the output.
+func (cli *ArduinoCLI) RunWithCustomEnvContext(ctx context.Context, env map[string]string, args ...string) ([]byte, []byte, error) {
 	var stdoutBuf, stderrBuf bytes.Buffer
-	err := cli.run(&stdoutBuf, &stderrBuf, nil, env, args...)
+	err := cli.run(ctx, &stdoutBuf, &stderrBuf, nil, env, args...)
 
 	errBuf := stderrBuf.Bytes()
 	cli.t.NotContains(string(errBuf), "panic: runtime error:", "arduino-cli panicked")
@@ -336,15 +347,15 @@ func (cli *ArduinoCLI) RunWithCustomEnv(env map[string]string, args ...string) (
 // RunWithCustomInput executes the given arduino-cli command pushing the given input stream and returns the output.
 func (cli *ArduinoCLI) RunWithCustomInput(in io.Reader, args ...string) ([]byte, []byte, error) {
 	var stdoutBuf, stderrBuf bytes.Buffer
-	err := cli.run(&stdoutBuf, &stderrBuf, in, cli.cliEnvVars, args...)
+	err := cli.run(context.Background(), &stdoutBuf, &stderrBuf, in, cli.cliEnvVars, args...)
 
 	errBuf := stderrBuf.Bytes()
 	cli.t.NotContains(string(errBuf), "panic: runtime error:", "arduino-cli panicked")
 
 	return stdoutBuf.Bytes(), errBuf, err
 }
 
-func (cli *ArduinoCLI) run(stdoutBuff, stderrBuff io.Writer, stdinBuff io.Reader, env map[string]string, args ...string) error {
+func (cli *ArduinoCLI) run(ctx context.Context, stdoutBuff, stderrBuff io.Writer, stdinBuff io.Reader, env map[string]string, args ...string) error {
 	if cli.cliConfigPath != nil {
 		args = append([]string{"--config-file", cli.cliConfigPath.String()}, args...)
 	}
@@ -402,8 +413,8 @@ func (cli *ArduinoCLI) run(stdoutBuff, stderrBuff io.Writer, stdinBuff io.Reader
 			}
 		}()
 	}
+	cliErr := cliProc.WaitWithinContext(ctx)
 	wg.Wait()
-	cliErr := cliProc.Wait()
 	fmt.Fprintln(terminalOut, color.HiBlackString("<<< Run completed (err = %v)", cliErr))
 
 	return cliErr

internal/integrationtest/compile_5/recusive_include_test.go

@@ -0,0 +1,44 @@
+// This file is part of arduino-cli.
+//
+// Copyright 2025 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 license@arduino.cc.
+
+package compile_test
+
+import (
+	"context"
+	"testing"
+	"time"
+
+	"github.com/arduino/arduino-cli/internal/integrationtest"
+	"github.com/arduino/go-paths-helper"
+	"github.com/stretchr/testify/require"
+)
+
+func TestCompileWithInfiniteMultipleIncludeRecursion(t *testing.T) {
+	env, cli := integrationtest.CreateArduinoCLIWithEnvironment(t)
+	t.Cleanup(env.CleanUp)
+
+	// Install Arduino AVR Boards
+	_, _, err := cli.Run("core", "install", "arduino:avr@1.8.6")
+	require.NoError(t, err)
+
+	sketch, err := paths.New("testdata", "SketchWithRecursiveIncludes").Abs()
+	require.NoError(t, err)
+
+	// Time-limited test to prevent OOM
+	ctx, cancel := context.WithTimeout(t.Context(), 10*time.Second)
+	t.Cleanup(cancel)
+	_, _, _ = cli.RunWithContext(ctx, "compile", "-b", "arduino:avr:uno", sketch.String())
+	require.NotErrorIs(t, ctx.Err(), context.DeadlineExceeded, "compilation should not hang")
+}

internal/integrationtest/compile_5/testdata/SketchWithRecursiveIncludes/SketchWithRecursiveIncludes.ino

@@ -0,0 +1 @@
+#include "a.h"

internal/integrationtest/compile_5/testdata/SketchWithRecursiveIncludes/a.h

@@ -0,0 +1,2 @@
+#include "a.h"
+#include "a.h"