class Libtasn1 < Formula
  desc "ASN.1 structure parser library"
  homepage "https://www.gnu.org/software/libtasn1/"
  url "https://ftp.gnu.org/gnu/libtasn1/libtasn1-4.19.0.tar.gz"
  mirror "https://ftpmirror.gnu.org/libtasn1/libtasn1-4.19.0.tar.gz"
  sha256 "1613f0ac1cf484d6ec0ce3b8c06d56263cc7242f1c23b30d82d23de345a63f7a"
  license "LGPL-2.1-or-later"

  def install
    system "./configure", "--prefix=#{prefix}", "--disable-dependency-tracking",
                          "--disable-silent-rules"
    system "make", "check"
    system "make", "install"
  end

  test do
    (testpath/"pkix.asn").write <<~EOS
      PKIX1 { }
      DEFINITIONS IMPLICIT TAGS ::=
      BEGIN
      Dss-Sig-Value ::= SEQUENCE {
           r       INTEGER,
           s       INTEGER
      }
      END
    EOS
    (testpath/"assign.asn1").write <<~EOS
      dp PKIX1.Dss-Sig-Value
      r 42
      s 47
    EOS
    system "#{bin}/asn1Coding", "pkix.asn", "assign.asn1"
    assert_match "Decoding: SUCCESS", shell_output("#{bin}/asn1Decoding pkix.asn assign.out PKIX1.Dss-Sig-Value 2>&1")
  end
end