Close out the repository audit

internal/testutil/symlink_test.go

@@ -0,0 +1,25 @@
+package testutil
+
+import (
+	"errors"
+	"io/fs"
+	"testing"
+)
+
+func TestSymlinkUnavailableClassifiesOnlyCapabilityErrors(t *testing.T) {
+	for _, test := range []struct {
+		name string
+		err  error
+		want bool
+	}{
+		{name: "permission", err: fs.ErrPermission, want: true},
+		{name: "unsupported", err: errors.ErrUnsupported, want: true},
+		{name: "unexpected", err: errors.New("fixture path is invalid"), want: false},
+	} {
+		t.Run(test.name, func(t *testing.T) {
+			if got := symlinkUnavailable(test.err); got != test.want {
+				t.Fatalf("symlinkUnavailable(%v) = %t, want %t", test.err, got, test.want)
+			}
+		})
+	}
+}