feat(modules): port arduino-cli module to Go

internal/modules/arduinocli/arduinocli_test.go

@@ -0,0 +1,94 @@
+package arduinocli
+
+import (
+	"archive/tar"
+	"compress/gzip"
+	"context"
+	"net/http"
+	"net/http/httptest"
+	"os"
+	"path/filepath"
+	"testing"
+
+	"github.com/MDietermann/ArduinoArchSetup/internal/config"
+	"github.com/MDietermann/ArduinoArchSetup/internal/module"
+)
+
+type fakeRunner struct {
+	runCalls    [][]string
+	outCalls    [][]string
+	coreListOut []byte
+}
+
+func (f *fakeRunner) Run(_ context.Context, name string, args ...string) error {
+	f.runCalls = append(f.runCalls, append([]string{name}, args...))
+	return nil
+}
+
+func (f *fakeRunner) Output(_ context.Context, name string, args ...string) ([]byte, error) {
+	f.outCalls = append(f.outCalls, append([]string{name}, args...))
+	if filepath.Base(name) == "arduino-cli" && len(args) >= 2 && args[0] == "core" && args[1] == "list" {
+		return f.coreListOut, nil
+	}
+	return nil, nil
+}
+
+type nop struct{}
+
+func (nop) Progress(string, int, int, string) {}
+func (nop) Log(string, string)                 {}
+
+func makeTarGz(t *testing.T, entries map[string][]byte) string {
+	t.Helper()
+	p := filepath.Join(t.TempDir(), "a.tgz")
+	f, _ := os.Create(p)
+	gz := gzip.NewWriter(f)
+	tw := tar.NewWriter(gz)
+	for name, data := range entries {
+		_ = tw.WriteHeader(&tar.Header{Name: name, Mode: 0o755, Size: int64(len(data))})
+		_, _ = tw.Write(data)
+	}
+	tw.Close()
+	gz.Close()
+	f.Close()
+	return p
+}
+
+func TestArduinoCLIDownloadsAndInstallsCore(t *testing.T) {
+	home := t.TempDir()
+	t.Setenv("HOME", home)
+	archive := makeTarGz(t, map[string][]byte{"arduino-cli": []byte("#!/bin/sh\n")})
+	srv := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		data, _ := os.ReadFile(archive)
+		w.Write(data)
+	}))
+	defer srv.Close()
+
+	r := &fakeRunner{coreListOut: []byte("ID  Installed\n")}
+	m := New(config.ArduinoCLIConfig{
+		Version: "1.0.0",
+		URL:     srv.URL + "/arduino-cli.tgz",
+		Cores:   []string{"arduino:avr"},
+	}, r)
+
+	st, _ := m.Detect(context.Background())
+	p, _ := m.Plan(context.Background(), st)
+	if err := m.Apply(context.Background(), p, nop{}); err != nil {
+		t.Fatal(err)
+	}
+
+	if _, err := os.Stat(filepath.Join(home, ".local", "bin", "arduino-cli")); err != nil {
+		t.Fatalf("binary not installed: %v", err)
+	}
+	sawCore := false
+	for _, c := range r.runCalls {
+		if filepath.Base(c[0]) == "arduino-cli" && len(c) >= 4 && c[1] == "core" && c[2] == "install" && c[3] == "arduino:avr" {
+			sawCore = true
+		}
+	}
+	if !sawCore {
+		t.Fatalf("core install not run; calls=%v", r.runCalls)
+	}
+}
+
+var _ module.Module = Module{}