test: add strip_signature test

spec/helpers/git_helper_spec.rb

@@ -8,4 +8,163 @@ describe GitHelper do
 
     it { expect(short_sha).to eq('d4e043f6') }
   end
+
+  describe '#strip_signature' do
+    context 'strips PGP SIGNATURE' do
+      let(:strip_signature) { helper.strip_signature( pgp_signature_tag ) }
+
+      it { expect(strip_signature).to eq("Version 1.69.0\n\n") }
+    end
+    context 'strips PGP MESSAGE' do
+      let(:strip_signature) { helper.strip_signature( pgp_message_tag ) }
+
+      it { expect(strip_signature).to eq("Version 1.69.0\n\n") }
+    end
+    context 'strips SIGNED MESSAGE' do
+      let(:strip_signature) { helper.strip_signature( x509_message_tag ) }
+
+      it { expect(strip_signature).to eq("this is Roger's signed tag\n\n") }
+    end
+  end
+
+  def pgp_signature_tag
+    <<~SIGNATURE
+    Version 1.69.0
+    -----BEGIN PGP SIGNATURE-----
+
+    iQEzBAABCAAdFiEEFMo1pwRq9j04Jovq68Q/GjfvLIoFAl2l64QACgkQ68Q/Gjfv
+    LIqRDggAm0d1ceVRsfldlwC6guR2ly8aWoTtZZ19E12bsfXd4lJqcQv7JXTP0og0
+    cwbV0l92iBJKGW6bFBipKDFmSgr5le5zFsXYOr9bJCQNOhFNMmtAgaHEIeVI16+c
+    S3pA+qIe516d4wRs/hcbxDJKC68iIlDaLXObdzTTLGMgbCYBFTjYJldNUfTkdvbB
+    oGEpFXuxV9EyfBtPLsz2vUea5GdZcRSVyJbcgm9ZU+ekdLZckroP5M0I5SQTbD3y
+    VrbCY3ziYtau4zK4cV66ybRz1G7tR6dcoC4kGUbaZlKsVZ1Af80agx2d9k5MR1wS
+    4OFe1H0zIfpPRFsyX2toaum3EX6QBA==
+    =hefg
+    -----END PGP SIGNATURE-----
+    SIGNATURE
+  end
+
+  def pgp_message_tag
+    <<~SIGNATURE
+    Version 1.69.0
+    -----BEGIN PGP MESSAGE-----
+
+    iQEzBAABCAAdFiEEFMo1pwRq9j04Jovq68Q/GjfvLIoFAl2l64QACgkQ68Q/Gjfv
+    LIqRDggAm0d1ceVRsfldlwC6guR2ly8aWoTtZZ19E12bsfXd4lJqcQv7JXTP0og0
+    cwbV0l92iBJKGW6bFBipKDFmSgr5le5zFsXYOr9bJCQNOhFNMmtAgaHEIeVI16+c
+    S3pA+qIe516d4wRs/hcbxDJKC68iIlDaLXObdzTTLGMgbCYBFTjYJldNUfTkdvbB
+    oGEpFXuxV9EyfBtPLsz2vUea5GdZcRSVyJbcgm9ZU+ekdLZckroP5M0I5SQTbD3y
+    VrbCY3ziYtau4zK4cV66ybRz1G7tR6dcoC4kGUbaZlKsVZ1Af80agx2d9k5MR1wS
+    4OFe1H0zIfpPRFsyX2toaum3EX6QBA==
+    =hefg
+    -----END PGP MESSAGE-----
+    SIGNATURE
+  end
+
+  def x509_message_tag
+    <<~SIGNATURE
+    this is Roger's signed tag
+    -----BEGIN SIGNED MESSAGE-----
+    MIISfwYJKoZIhvcNAQcCoIIScDCCEmwCAQExDTALBglghkgBZQMEAgEwCwYJKoZI
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+    -----END SIGNED MESSAGE-----
+    SIGNATURE
+  end
 end