Add internal debug bundle collaborators

internal/core/debugbundle/bundle_test.go

@@ -0,0 +1,75 @@
+package debugbundle
+
+import (
+	"os"
+	"path/filepath"
+	"testing"
+	"time"
+)
+
+func TestAllocateCreatesRestrictiveSummaryAndTrace(t *testing.T) {
+	parent := t.TempDir()
+	fixed := time.Unix(0, 42).UTC()
+	previous := utcNow
+	utcNow = func() time.Time { return fixed }
+	defer func() { utcNow = previous }()
+	bundle, err := Allocate(parent)
+	if err != nil {
+		t.Fatal(err)
+	}
+	if bundle.RunID() != "run-42" || bundle.SummaryRoot() != filepath.Join(bundle.Path(), "summary") || bundle.TraceRoot() != filepath.Join(bundle.Path(), "trace") {
+		t.Fatalf("bundle=%#v", bundle)
+	}
+	for _, path := range []string{bundle.Path(), bundle.SummaryRoot(), bundle.TraceRoot()} {
+		info, err := os.Stat(path)
+		if err != nil {
+			t.Fatal(err)
+		}
+		if info.Mode().Perm() != 0o700 {
+			t.Fatalf("%s mode=%#o", path, info.Mode().Perm())
+		}
+	}
+	if err := bundle.Summary().WriteError("failed"); err != nil {
+		t.Fatal(err)
+	}
+	info, err := os.Stat(filepath.Join(bundle.SummaryRoot(), ArtifactErrorLog))
+	if err != nil {
+		t.Fatal(err)
+	}
+	if info.Mode().Perm() != 0o600 {
+		t.Fatalf("file mode=%#o", info.Mode().Perm())
+	}
+}
+func TestAllocateRetriesAndDoesNotDeleteBundle(t *testing.T) {
+	parent := t.TempDir()
+	fixed := time.Unix(0, 9).UTC()
+	previous := utcNow
+	defer func() { utcNow = previous }()
+	calls := 0
+	utcNow = func() time.Time { calls++; return fixed.Add(time.Duration(calls-1) * time.Nanosecond) }
+	if err := os.Mkdir(filepath.Join(parent, "run-9"), 0o700); err != nil {
+		t.Fatal(err)
+	}
+	bundle, err := Allocate(parent)
+	if err != nil {
+		t.Fatal(err)
+	}
+	if bundle.RunID() != "run-10" {
+		t.Fatalf("run id=%q", bundle.RunID())
+	}
+	if _, err := os.Stat(bundle.Path()); err != nil {
+		t.Fatal(err)
+	}
+}
+func TestSummaryWriterConfinesArtifacts(t *testing.T) {
+	bundle, err := Allocate(t.TempDir())
+	if err != nil {
+		t.Fatal(err)
+	}
+	if err := bundle.Summary().WriteJSON("../outside.json", map[string]any{}); err == nil {
+		t.Fatal("accepted traversal")
+	}
+	if err := bundle.Summary().WriteBytes(`trace\\x`, []byte("x")); err == nil {
+		t.Fatal("accepted backslash")
+	}
+}