tests refactored into unit tests

27 files changed, 726 insertions, 195 deletions

diff --git a/.travis.yml b/.travis.yml
index fb280da..5fddbbb 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -10,10 +10,12 @@ python:
   - "3.6"
   - "nightly"
   - "pypy"
-# disable pypy till pyasn1 0.2.4+
-#  - "pypy3"
+  - "pypy3"
 install:
-  - pip install pyasn1
+  - pip install codecov pyasn1
   - python setup.py install
 script:
-  - sh runtests.sh
+  - PYTHONPATH=.:$PYTHONPATH python tests/__main__.py
+after_success:
+  - PYTHONPATH=.:$PYTHONPATH coverage run --omit=*test* tests/__main__.py
+  - codecov
diff --git a/CHANGES.txt b/CHANGES.txt
index 0d331d5..416f648 100644
--- a/CHANGES.txt
+++ b/CHANGES.txt
@@ -1,4 +1,10 @@
 
+Revision 0.1.1, released XX-08-2017
+-----------------------------------
+
+- Tests refactored into proper unit tests
+- pem.readBase64fromText() convenience function added
+
 Revision 0.0.11, released 04-08-2017
 ------------------------------------
 
diff --git a/MANIFEST.in b/MANIFEST.in
index 1c6a9dd..57135d7 100644
--- a/MANIFEST.in
+++ b/MANIFEST.in
@@ -1,3 +1,4 @@
-include *.txt *.md *.sh
+include *.txt *.md
 recursive-include tools *.py
-recursive-include test *.sh
+recursive-include tests *.py
+prune doc/build
diff --git a/pyasn1_modules/__init__.py b/pyasn1_modules/__init__.py
index 68d619b..548ede9 100644
--- a/pyasn1_modules/__init__.py
+++ b/pyasn1_modules/__init__.py
@@ -1,2 +1,2 @@
 # http://www.python.org/dev/peps/pep-0396/
-__version__ = '0.0.11'
+__version__ = '0.1.1'
diff --git a/pyasn1_modules/pem.py b/pyasn1_modules/pem.py
index 913f96d..9f16308 100644
--- a/pyasn1_modules/pem.py
+++ b/pyasn1_modules/pem.py
@@ -54,10 +54,12 @@ def readPemFromFile(fileObj,
     return substrate
 
 
-def readBase64FromFile(fileObj):
+def readBase64fromText(text):
     if sys.version_info[0] <= 2:
-        return ''.join([base64.b64decode(x) for x in fileObj.readlines()])
+        return base64.b64decode(text)
     else:
-        return ''.encode().join(
-            [base64.b64decode(x.encode()) for x in fileObj.readlines()]
-        )
+        return base64.b64decode(text.encode())
+
+
+def readBase64FromFile(fileObj):
+    return readBase64fromText(fileObj.read())
diff --git a/runtests.sh b/runtests.sh
deleted file mode 100755
index d0801c3..0000000
--- a/runtests.sh
+++ /dev/null
@@ -1,10 +0,0 @@
-#!/bin/sh
-
-set -e
-
-export PATH=tools:$PATH
-
-for script in test/*.sh
-do
-  ${script}
-done
\ No newline at end of file
diff --git a/setup.py b/setup.py
index 0b7906d..309ccde 100644
--- a/setup.py
+++ b/setup.py
@@ -98,4 +98,33 @@ params.update(
      'packages': ['pyasn1_modules']}
 )
 
+
+# handle unittest discovery feature
+try:
+    import unittest2 as unittest
+except ImportError:
+    import unittest
+
+
+class PyTest(Command):
+    user_options = []
+
+    def initialize_options(self):
+        pass
+
+    def finalize_options(self):
+        pass
+
+    def run(self):
+        suite = unittest.TestLoader().loadTestsFromNames(
+            ['tests.__main__.suite']
+        )
+
+        unittest.TextTestRunner(verbosity=2).run(suite)
+
+params['cmdclass'] = {
+    'test': PyTest,
+    'tests': PyTest
+}
+
 setup(**params)
diff --git a/test/cmcdump.sh b/test/cmcdump.sh
deleted file mode 100755
index 4a53f71..0000000
--- a/test/cmcdump.sh
+++ /dev/null
@@ -1,24 +0,0 @@
-#!/bin/sh
-
-cmcdump.py <<EOT
-MIIEJQYJKoZIhvcNAQcCoIIEFjCCBBICAQMxCzAJBgUrDgMCGgUAMIIDAgYIKwYBBQUHDAKgggL0
-BIIC8DCCAuwweDB2AgECBgorBgEEAYI3CgoBMWUwYwIBADADAgEBMVkwVwYJKwYBBAGCNxUUMUow
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-xicQmJP+VoMHo/ZpjFY9fYCjNZUArgKsEwK/s+p9yrVVeB1Nf8Mn
-EOT
-
diff --git a/test/crl.sh b/test/crl.sh
deleted file mode 100755
index 76526cb..0000000
--- a/test/crl.sh
+++ /dev/null
@@ -1,14 +0,0 @@
-#!/bin/sh
-
-crldump.py <<EOT
------BEGIN X509 CRL-----
-MIIBVjCBwAIBATANBgkqhkiG9w0BAQUFADB+MQswCQYDVQQGEwJBVTETMBEGA1UE
-CBMKU29tZS1TdGF0ZTEhMB8GA1UEChMYSW50ZXJuZXQgV2lkZ2l0cyBQdHkgTHRk
-MRUwEwYDVQQDEwxzbm1wbGFicy5jb20xIDAeBgkqhkiG9w0BCQEWEWluZm9Ac25t
-cGxhYnMuY29tFw0xMjA0MTExMzQwNTlaFw0xMjA1MTExMzQwNTlaoA4wDDAKBgNV
-HRQEAwIBATANBgkqhkiG9w0BAQUFAAOBgQC1D/wwnrcY/uFBHGc6SyoYss2kn+nY
-RTwzXmmldbNTCQ03x5vkWGGIaRJdN8QeCzbEi7gpgxgpxAx6Y5WkxkMQ1UPjNM5n
-DGVDOtR0dskFrrbHuNpWqWrDaBN0/ryZiWKjr9JRbrpkHgVY29I1gLooQ6IHuKHY
-vjnIhxTFoCb5vA==
------END X509 CRL-----
-EOT
diff --git a/test/crmf.sh b/test/crmf.sh
deleted file mode 100755
index 4871598..0000000
--- a/test/crmf.sh
+++ /dev/null
@@ -1,14 +0,0 @@
-#!/bin/sh
-
-crmfdump.py <<EOT
-MIIBozCCAZ8wggEFAgUAwTnj2jCByoABAqURMA8xDTALBgNVBAMTBHVzZXKmgZ8w
-DQYJKoZIhvcNAQEBBQADgY0AMIGJAoGBAJ6ZQ2cYbn/lFsmBOlRltbRbFQUvvE0Q
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-xfu5YVWi81/fw8QQ6X6YGHFQkomLd7jxakVyjxSng9BhO6GpjJNF
-EOT
-
diff --git a/test/ocspreq.sh b/test/ocspreq.sh
deleted file mode 100755
index fff23c3..0000000
--- a/test/ocspreq.sh
+++ /dev/null
@@ -1,7 +0,0 @@
-#!/bin/sh
-
-ocspreqdump.py <<EOT
-MGowaDBBMD8wPTAJBgUrDgMCGgUABBS3ZrMV9C5Dko03aH13cEZeppg3wgQUkqR1LKSevoFE63n8
-isWVpesQdXMCBDXe9M+iIzAhMB8GCSsGAQUFBzABAgQSBBBjdJOiIW9EKJGELNNf/rdA
-EOT
-
diff --git a/test/pkcs1.sh b/test/pkcs1.sh
deleted file mode 100755
index cc45f94..0000000
--- a/test/pkcs1.sh
+++ /dev/null
@@ -1,26 +0,0 @@
-#!/bin/sh
-
-pkcs1dump.py <<EOT
------BEGIN DSA PRIVATE KEY-----
-MIIBugIBAAKBgQCN91+Cma8UPw09gjwP9WOJCdpv3mv3/qFqzgiODGZx0Q002iTl
-1dq36m5TsWYFEcMCEyC3tFuoQ0mGq5zUUOmJvHCIPufs0g8Av0fhY77uFqneHHUi
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-wontdTt9EtbF+CqIWnm2wpn3O+SbdtawzPOL1CcGB0jYABwbeQ81RwIUFKdyRYaa
-INow2I3/ks+0MxDabTY=
------END DSA PRIVATE KEY-----
------BEGIN RSA PRIVATE KEY-----
-MIIBPAIBAAJBAMfAjvBNDDYBCl1w3yNcagZkPhqd0q5KqeOTgKSLuJWfe5+VSeR5
-Y1PcF3DyH8dvS3t8PIQjxJLoKS7HVRlsfhECAwEAAQJBAIr93/gxhIenXbD7MykF
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-n8lDw3JT6NjvMnD6aM8KBsLyhazWSVVkaUSqmJzgCF0=
------END RSA PRIVATE KEY-----
-EOT
-
diff --git a/test/pkcs8.sh b/test/pkcs8.sh
deleted file mode 100755
index add2d7e..0000000
--- a/test/pkcs8.sh
+++ /dev/null
@@ -1,26 +0,0 @@
-#!/bin/sh
-
-pkcs8dump.py <<EOT
------BEGIN ENCRYPTED PRIVATE KEY-----
-MIIBgTAbBgkqhkiG9w0BBQMwDgQIdtFgDWnipT8CAggABIIBYN0hkm2xqkTCt8dJ
-iZS8+HNiyHxy8g+rmWSXv/i+bTHFUReZA2GINtTRUkWpXqWcSHxNslgf7QdfgbVJ
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-pvTU2+wtuoOFcttJregtR94ZHu5wgdYqRydmFNG8PnvZT1mRMmQgUe/vp88FMmsZ
-dLsZjNQ=
------END ENCRYPTED PRIVATE KEY-----
------BEGIN PRIVATE KEY-----
-MIIBVgIBADANBgkqhkiG9w0BAQEFAASCAUAwggE8AgEAAkEAx8CO8E0MNgEKXXDf
-I1xqBmQ+Gp3Srkqp45OApIu4lZ97n5VJ5HljU9wXcPIfx29Le3w8hCPEkugpLsdV
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-jAZHiKwJ8eXuhAeEVo4PyTREDmLeFjECIQCfyUPDclPo2O8ycPpozwoGwvKFrNZJ
-VWRpRKqYnOAIXQ==
------END PRIVATE KEY-----
-EOT
-
diff --git a/test/x509dump-rfc5280.sh b/test/x509dump-rfc5280.sh
deleted file mode 100755
index 17df260..0000000
--- a/test/x509dump-rfc5280.sh
+++ /dev/null
@@ -1,23 +0,0 @@
-#!/bin/sh
-
-x509dump-rfc5280.py <<EOT
------BEGIN CERTIFICATE-----
-MIIC5zCCAlACAQEwDQYJKoZIhvcNAQEFBQAwgbsxJDAiBgNVBAcTG1ZhbGlDZXJ0
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------END CERTIFICATE-----
-EOT
-
diff --git a/test/x509dump.sh b/test/x509dump.sh
deleted file mode 100755
index 6290497..0000000
--- a/test/x509dump.sh
+++ /dev/null
@@ -1,23 +0,0 @@
-#!/bin/sh
-
-x509dump.py <<EOT
------BEGIN CERTIFICATE-----
-MIIC5zCCAlACAQEwDQYJKoZIhvcNAQEFBQAwgbsxJDAiBgNVBAcTG1ZhbGlDZXJ0
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------END CERTIFICATE-----
-EOT
-
diff --git a/tests/__init__.py b/tests/__init__.py
new file mode 100644
index 0000000..8c3066b
--- /dev/null
+++ b/tests/__init__.py
@@ -0,0 +1 @@
+# This file is necessary to make this directory a package.
diff --git a/tests/__main__.py b/tests/__main__.py
new file mode 100644
index 0000000..c6377a6
--- /dev/null
+++ b/tests/__main__.py
@@ -0,0 +1,28 @@
+#
+# This file is part of pyasn1-modules software.
+#
+# Copyright (c) 2005-2017, Ilya Etingof <etingof@gmail.com>
+# License: http://pyasn1.sf.net/license.html
+#
+try:
+    import unittest2 as unittest
+
+except ImportError:
+    import unittest
+
+suite = unittest.TestLoader().loadTestsFromNames(
+    ['tests.test_rfc2314.suite',
+     'tests.test_rfc2315.suite',
+     'tests.test_rfc2437.suite',
+     'tests.test_rfc2459.suite',
+     'tests.test_rfc2511.suite',
+     'tests.test_rfc2560.suite',
+     'tests.test_rfc4210.suite',
+     'tests.test_rfc5208.suite',
+     'tests.test_rfc5280.suite',
+     'tests.test_rfc5652.suite',]
+)
+
+
+if __name__ == '__main__':
+    unittest.TextTestRunner(verbosity=2).run(suite)
diff --git a/test/pkcs10.sh b/tests/test_rfc2314.py
index d8f9e07..6dd5c47 100755..100644
--- a/test/pkcs10.sh
+++ b/tests/test_rfc2314.py
@@ -1,7 +1,23 @@
-#!/bin/sh
+#
+# This file is part of pyasn1-modules software.
+#
+# Copyright (c) 2005-2017, Ilya Etingof <etingof@gmail.com>
+# License: http://pyasn1.sf.net/license.html
+#
+import sys
+from pyasn1.codec.der import decoder as der_decoder
+from pyasn1.codec.der import encoder as der_encoder
 
-pkcs10dump.py <<EOT
------BEGIN CERTIFICATE REQUEST-----
+from pyasn1_modules import rfc2314, pem
+
+try:
+    import unittest2 as unittest
+except ImportError:
+    import unittest
+
+
+class CertificationRequestTestCase(unittest.TestCase):
+    pem_text = """\
 MIIDATCCAekCAQAwgZkxCzAJBgNVBAYTAlJVMRYwFAYDVQQIEw1Nb3Njb3cgUmVn
 aW9uMQ8wDQYDVQQHEwZNb3Njb3cxGjAYBgNVBAoTEVNOTVAgTGFib3JhdG9yaWVz
 MQwwCgYDVQQLFANSJkQxFTATBgNVBAMTDHNubXBsYWJzLmNvbTEgMB4GCSqGSIb3
@@ -19,6 +35,23 @@ Nv8sBmp9I1GdhGg52DIaWwL4t9O5WUHgfHSJpPxZ/zMP2qIsdPJ+8o19BbXRlufc
 WdApGGm0BePdLqboW1Yv70WRRFFD8sxeT7Yw4qrJojdnq0xMHPGfKpf6dJsqWkHk
 b5DRbjil1Zt9pJuF680S9wtBzSi0hsMHXR9TzS7HpMjykL2nmCVY6A78MZapsCzn
 GGbx7DI=
------END CERTIFICATE REQUEST-----
-EOT
+"""
+
+    def setUp(self):
+        self.asn1Spec = rfc2314.CertificationRequest()
+
+    def testDerCodec(self):
+
+        substrate = pem.readBase64fromText(self.pem_text)
+
+        asn1Object, rest = der_decoder.decode(substrate, asn1Spec=self.asn1Spec)
+
+        assert not rest
+        assert asn1Object.prettyPrint()
+        assert der_encoder.encode(asn1Object) == substrate
+
+
+suite = unittest.TestLoader().loadTestsFromModule(sys.modules[__name__])
 
+if __name__ == '__main__':
+    unittest.TextTestRunner(verbosity=2).run(suite)
diff --git a/test/pkcs7.sh b/tests/test_rfc2315.py
index 45b86c2..8a6d11f 100755..100644
--- a/test/pkcs7.sh
+++ b/tests/test_rfc2315.py
@@ -1,7 +1,23 @@
-#!/bin/sh
+#
+# This file is part of pyasn1-modules software.
+#
+# Copyright (c) 2005-2017, Ilya Etingof <etingof@gmail.com>
+# License: http://pyasn1.sf.net/license.html
+#
+import sys
+from pyasn1.codec.der import decoder as der_decoder
+from pyasn1.codec.der import encoder as der_encoder
 
-pkcs7dump.py <<EOT
------BEGIN PKCS7-----
+from pyasn1_modules import rfc2315, pem
+
+try:
+    import unittest2 as unittest
+except ImportError:
+    import unittest
+
+
+class Pkcs7TestCase(unittest.TestCase):
+    pem_text = """\
 MIIKdQYJKoZIhvcNAQcCoIIKZjCCCmICAQExADALBgkqhkiG9w0BBwGgggpIMIIC
 XjCCAcegAwIBAgIBADANBgkqhkiG9w0BAQQFADB1MQswCQYDVQQGEwJSVTEPMA0G
 A1UEBxMGTW9zY293MRcwFQYDVQQKEw5Tb3ZhbSBUZWxlcG9ydDEMMAoGA1UECxMD
@@ -58,6 +74,44 @@ AgMBAAGjGzAZMBcGCWCGSAGG+EIBDQQKFghDPS07Uz0tOzANBgkqhkiG9w0BAQQF
 AAOBgQDEttS70qYCA+MGBA3hOR88XiBcTmuBarJDwn/rj31vRjYZUgp9bbFwscRI
 Ic4lDnlyvunwNitl+341bDg7u6Ebu9hCMbciyu4EtrsDh77DlLzbmNcXbnhlvbFL
 K9GiPz3dNyvQMfmaA0twd62zJDOVJ1SmO04lLmu/pAx8GhBZkqEAMQA=
------END PKCS7-----
-EOT
+"""
+
+    def setUp(self):
+        self.asn1Spec = rfc2315.ContentInfo()
+
+    def testDerCodec(self):
+
+        substrate = pem.readBase64fromText(self.pem_text)
+
+        asn1Object, rest = der_decoder.decode(substrate, asn1Spec=self.asn1Spec)
+
+        assert not rest
+        assert asn1Object.prettyPrint()
+        assert der_encoder.encode(asn1Object) == substrate
+
+        contentType = asn1Object.getComponentByName('contentType')
+
+        contentInfoMap = {
+            (1, 2, 840, 113549, 1, 7, 1): rfc2315.Data(),
+            (1, 2, 840, 113549, 1, 7, 2): rfc2315.SignedData(),
+            (1, 2, 840, 113549, 1, 7, 3): rfc2315.EnvelopedData(),
+            (1, 2, 840, 113549, 1, 7, 4): rfc2315.SignedAndEnvelopedData(),
+            (1, 2, 840, 113549, 1, 7, 5): rfc2315.DigestedData(),
+            (1, 2, 840, 113549, 1, 7, 6): rfc2315.EncryptedData()
+        }
+
+        substrate = asn1Object.getComponentByName('content')
+
+        asn1Object, rest = der_decoder.decode(
+            substrate, asn1Spec=contentInfoMap[contentType]
+        )
+
+        assert not rest
+        assert asn1Object.prettyPrint()
+        assert der_encoder.encode(asn1Object) == substrate
+
+
+suite = unittest.TestLoader().loadTestsFromModule(sys.modules[__name__])
 
+if __name__ == '__main__':
+    unittest.TextTestRunner(verbosity=2).run(suite)
diff --git a/tests/test_rfc2437.py b/tests/test_rfc2437.py
new file mode 100644
index 0000000..8d3539a
--- /dev/null
+++ b/tests/test_rfc2437.py
@@ -0,0 +1,47 @@
+#
+# This file is part of pyasn1-modules software.
+#
+# Copyright (c) 2005-2017, Ilya Etingof <etingof@gmail.com>
+# License: http://pyasn1.sf.net/license.html
+#
+import sys
+from pyasn1.codec.der import decoder as der_decoder
+from pyasn1.codec.der import encoder as der_encoder
+
+from pyasn1_modules import rfc2437, pem
+
+try:
+    import unittest2 as unittest
+except ImportError:
+    import unittest
+
+
+class RSAPrivateKeyTestCase(unittest.TestCase):
+    pem_text = """\
+MIIBPAIBAAJBAMfAjvBNDDYBCl1w3yNcagZkPhqd0q5KqeOTgKSLuJWfe5+VSeR5
+Y1PcF3DyH8dvS3t8PIQjxJLoKS7HVRlsfhECAwEAAQJBAIr93/gxhIenXbD7MykF
+yvi7k8MtgkWoymICZwcX+c6RudFyuPPfQJ/sf6RmFZlRA9X9CQm5NwVG7+x1Yi6t
+KoECIQDmJUCWkPCiQYow6YxetpXFa0K6hTzOPmax7MNHVWNgmQIhAN4xOZ4JFT34
+xVhK+8EudBCYRomJUHmOJfoQAxiIXVw5AiEAyB7ecc5on/5zhqKef4Eu7LKfHIdc
+304diFuDVpTmTAkCIC2ZmKOQZaWkSowGR4isCfHl7oQHhFaOD8k0RA5i3hYxAiEA
+n8lDw3JT6NjvMnD6aM8KBsLyhazWSVVkaUSqmJzgCF0=
+"""
+
+    def setUp(self):
+        self.asn1Spec = rfc2437.RSAPrivateKey()
+
+    def testDerCodec(self):
+
+        substrate = pem.readBase64fromText(self.pem_text)
+
+        asn1Object, rest = der_decoder.decode(substrate, asn1Spec=self.asn1Spec)
+
+        assert not rest
+        assert asn1Object.prettyPrint()
+        assert der_encoder.encode(asn1Object) == substrate
+
+
+suite = unittest.TestLoader().loadTestsFromModule(sys.modules[__name__])
+
+if __name__ == '__main__':
+    unittest.TextTestRunner(verbosity=2).run(suite)
diff --git a/tests/test_rfc2459.py b/tests/test_rfc2459.py
new file mode 100644
index 0000000..1fa9d07
--- /dev/null
+++ b/tests/test_rfc2459.py
@@ -0,0 +1,111 @@
+#
+# This file is part of pyasn1-modules software.
+#
+# Copyright (c) 2005-2017, Ilya Etingof <etingof@gmail.com>
+# License: http://pyasn1.sf.net/license.html
+#
+import sys
+from pyasn1.codec.der import decoder as der_decoder
+from pyasn1.codec.der import encoder as der_encoder
+
+from pyasn1_modules import rfc2459, pem
+
+try:
+    import unittest2 as unittest
+except ImportError:
+    import unittest
+
+
+class CertificateTestCase(unittest.TestCase):
+    pem_text = """\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+"""
+
+    def setUp(self):
+        self.asn1Spec = rfc2459.Certificate()
+
+    def testDerCodec(self):
+
+        substrate = pem.readBase64fromText(self.pem_text)
+
+        asn1Object, rest = der_decoder.decode(substrate, asn1Spec=self.asn1Spec)
+
+        assert not rest
+        assert asn1Object.prettyPrint()
+        assert der_encoder.encode(asn1Object) == substrate
+
+
+class CertificateListTestCase(unittest.TestCase):
+    pem_text = """\
+MIIBVjCBwAIBATANBgkqhkiG9w0BAQUFADB+MQswCQYDVQQGEwJBVTETMBEGA1UE
+CBMKU29tZS1TdGF0ZTEhMB8GA1UEChMYSW50ZXJuZXQgV2lkZ2l0cyBQdHkgTHRk
+MRUwEwYDVQQDEwxzbm1wbGFicy5jb20xIDAeBgkqhkiG9w0BCQEWEWluZm9Ac25t
+cGxhYnMuY29tFw0xMjA0MTExMzQwNTlaFw0xMjA1MTExMzQwNTlaoA4wDDAKBgNV
+HRQEAwIBATANBgkqhkiG9w0BAQUFAAOBgQC1D/wwnrcY/uFBHGc6SyoYss2kn+nY
+RTwzXmmldbNTCQ03x5vkWGGIaRJdN8QeCzbEi7gpgxgpxAx6Y5WkxkMQ1UPjNM5n
+DGVDOtR0dskFrrbHuNpWqWrDaBN0/ryZiWKjr9JRbrpkHgVY29I1gLooQ6IHuKHY
+vjnIhxTFoCb5vA==
+"""
+
+    def setUp(self):
+        self.asn1Spec = rfc2459.CertificateList()
+
+    def testDerCodec(self):
+
+        substrate = pem.readBase64fromText(self.pem_text)
+
+        asn1Object, rest = der_decoder.decode(substrate, asn1Spec=self.asn1Spec)
+
+        assert not rest
+        assert asn1Object.prettyPrint()
+        assert der_encoder.encode(asn1Object) == substrate
+
+
+class DSAPrivateKeyTestCase(unittest.TestCase):
+    pem_text = """\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+"""
+
+    def setUp(self):
+        self.asn1Spec = rfc2459.DSAPrivateKey()
+
+    def testDerCodec(self):
+
+        substrate = pem.readBase64fromText(self.pem_text)
+
+        asn1Object, rest = der_decoder.decode(substrate, asn1Spec=self.asn1Spec)
+
+        assert not rest
+        assert asn1Object.prettyPrint()
+        assert der_encoder.encode(asn1Object) == substrate
+
+
+
+suite = unittest.TestLoader().loadTestsFromModule(sys.modules[__name__])
+
+if __name__ == '__main__':
+    unittest.TextTestRunner(verbosity=2).run(suite)
diff --git a/tests/test_rfc2511.py b/tests/test_rfc2511.py
new file mode 100644
index 0000000..ef4cc00
--- /dev/null
+++ b/tests/test_rfc2511.py
@@ -0,0 +1,49 @@
+#
+# This file is part of pyasn1-modules software.
+#
+# Copyright (c) 2005-2017, Ilya Etingof <etingof@gmail.com>
+# License: http://pyasn1.sf.net/license.html
+#
+import sys
+from pyasn1.codec.der import decoder as der_decoder
+from pyasn1.codec.der import encoder as der_encoder
+
+from pyasn1_modules import rfc2511, pem
+
+try:
+    import unittest2 as unittest
+except ImportError:
+    import unittest
+
+
+class CertificateReqTestCase(unittest.TestCase):
+    pem_text = """\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+"""
+
+    def setUp(self):
+        self.asn1Spec = rfc2511.CertReqMessages()
+
+    def testDerCodec(self):
+
+        substrate = pem.readBase64fromText(self.pem_text)
+
+        asn1Object, rest = der_decoder.decode(substrate, asn1Spec=self.asn1Spec)
+
+        assert not rest
+        assert asn1Object.prettyPrint()
+        assert der_encoder.encode(asn1Object) == substrate
+
+
+suite = unittest.TestLoader().loadTestsFromModule(sys.modules[__name__])
+
+if __name__ == '__main__':
+    unittest.TextTestRunner(verbosity=2).run(suite)
diff --git a/test/ocsprsp.sh b/tests/test_rfc2560.py
index ea314de..8de8cbe 100755..100644
--- a/test/ocsprsp.sh
+++ b/tests/test_rfc2560.py
@@ -1,6 +1,43 @@
-#!/bin/sh
+#
+# This file is part of pyasn1-modules software.
+#
+# Copyright (c) 2005-2017, Ilya Etingof <etingof@gmail.com>
+# License: http://pyasn1.sf.net/license.html
+#
+import sys
+from pyasn1.codec.der import decoder as der_decoder
+from pyasn1.codec.der import encoder as der_encoder
 
-ocsprspdump.py <<EOT
+from pyasn1_modules import rfc2560, pem
+
+try:
+    import unittest2 as unittest
+except ImportError:
+    import unittest
+
+
+class OCSPRequestTestCase(unittest.TestCase):
+    pem_text = """\
+MGowaDBBMD8wPTAJBgUrDgMCGgUABBS3ZrMV9C5Dko03aH13cEZeppg3wgQUkqR1LKSevoFE63n8
+isWVpesQdXMCBDXe9M+iIzAhMB8GCSsGAQUFBzABAgQSBBBjdJOiIW9EKJGELNNf/rdA
+"""
+
+    def setUp(self):
+        self.asn1Spec = rfc2560.OCSPRequest()
+
+    def testDerCodec(self):
+
+        substrate = pem.readBase64fromText(self.pem_text)
+
+        asn1Object, rest = der_decoder.decode(substrate, asn1Spec=self.asn1Spec)
+
+        assert not rest
+        assert asn1Object.prettyPrint()
+        assert der_encoder.encode(asn1Object) == substrate
+
+
+class OCSPResponseTestCase(unittest.TestCase):
+    pem_text = """\
 MIIExAoBAKCCBL0wggS5BgkrBgEFBQcwAQEkggSqBIID6DCCBJ8wggEPoYGAMH4xCzAJBgNVBAYT
 AkFVMRMwEQYDVQQIEwpTb21lLVN0YXRlMSEwHwYDVQQKExhJbnRlcm5ldCBXaWRnaXRzIFB0eSBM
 dGQxFTATBgNVBAMTDHNubXBsYWJzLmNvbTEgMB4GCSqGSIb3DQEJARYRaW5mb0Bzbm1wbGFicy5j
@@ -23,4 +60,23 @@ RSzB5cmOew8EgbuATZpapxHGMB8GA1UdIwQYMBaAFPGLNnaSRSzB5cmOew+ATZpapxHGMA0GCSqG
 SIb3DQEBBQUAA4GBAFkdLhSVZUCHeoVaVG4FxU6csLTYrTVxYmGJEUb++zHEiaiwmv3NcJ7i5qnB
 XLkVCtKDevGSQz9hwwynvDAmfPrMfgheeHjPFQoDfbkPV8hO8fV61w3d1MPUSVWlkiHs5DSjXgRN
 JQzNo1IwuBwBEnX+53m89cLagDlxNY1hf8vI
-EOT
+"""
+
+    def setUp(self):
+        self.asn1Spec = rfc2560.OCSPResponse()
+
+    def testDerCodec(self):
+
+        substrate = pem.readBase64fromText(self.pem_text)
+
+        asn1Object, rest = der_decoder.decode(substrate, asn1Spec=self.asn1Spec)
+
+        assert not rest
+        assert asn1Object.prettyPrint()
+        assert der_encoder.encode(asn1Object) == substrate
+
+
+suite = unittest.TestLoader().loadTestsFromModule(sys.modules[__name__])
+
+if __name__ == '__main__':
+    unittest.TextTestRunner(verbosity=2).run(suite)
diff --git a/test/cmp.sh b/tests/test_rfc4210.py
index f734f20..35451c8 100755..100644
--- a/test/cmp.sh
+++ b/tests/test_rfc4210.py
@@ -1,6 +1,23 @@
-#!/bin/sh
+#
+# This file is part of pyasn1-modules software.
+#
+# Copyright (c) 2005-2017, Ilya Etingof <etingof@gmail.com>
+# License: http://pyasn1.sf.net/license.html
+#
+import sys
+from pyasn1.codec.der import decoder as der_decoder
+from pyasn1.codec.der import encoder as der_encoder
 
-cmpdump.py <<EOT
+from pyasn1_modules import rfc4210, pem
+
+try:
+    import unittest2 as unittest
+except ImportError:
+    import unittest
+
+
+class PKIMessageTestCase(unittest.TestCase):
+    pem_text = """\
 MIITuTCCARECAQKkWTBXMQswCQYDVQQGEwJUUjEQMA4GA1UEChMHRS1HdXZlbjEUMBIGA1UECxML
 VHJ1c3RDZW50ZXIxIDAeBgNVBAMTF1JTQSBTZWN1cml0eSBDTVAgU2VydmVypC0wKzELMAkGA1UE
 BhMCVFIxHDAaBgNVBAMME1ZhbGltby1WZXR0b3ItMTdEZWOgERgPMjAxMjA1MDMxMTE2MTdaoQ8w
@@ -90,4 +107,23 @@ vnCx2LfBn1wf1u7q30p/GgMVX+mR3QHs7feGewEjlkxuEyLVVD+uBwWCT6zcad17oaAyXV5RV28L
 vH0WNg6pFUpwOP0l+nIOqqCBhAOBgQBAtTB5Qd18sTxEKhSzRiN2OycFPrqoqlZZTHBohe8bE2D4
 Xc1ejkFWUEvQivkqJxCD6C7I37xgDaq8DZnaczIBxbPkY0QMdeL4MiEqlw/tlrJGrWoC5Twb0t/m
 JA5RSwQoMDYTj2WrwtM/nsP12T39or4JRZhlLSM43IaTwEBtQw==
-EOT
+"""
+
+    def setUp(self):
+        self.asn1Spec = rfc4210.PKIMessage()
+
+    def testDerCodec(self):
+
+        substrate = pem.readBase64fromText(self.pem_text)
+
+        asn1Object, rest = der_decoder.decode(substrate, asn1Spec=self.asn1Spec)
+
+        assert not rest
+        assert asn1Object.prettyPrint()
+        assert der_encoder.encode(asn1Object) == substrate
+
+
+suite = unittest.TestLoader().loadTestsFromModule(sys.modules[__name__])
+
+if __name__ == '__main__':
+    unittest.TextTestRunner(verbosity=2).run(suite)
diff --git a/tests/test_rfc5208.py b/tests/test_rfc5208.py
new file mode 100644
index 0000000..94d1d0e
--- /dev/null
+++ b/tests/test_rfc5208.py
@@ -0,0 +1,74 @@
+#
+# This file is part of pyasn1-modules software.
+#
+# Copyright (c) 2005-2017, Ilya Etingof <etingof@gmail.com>
+# License: http://pyasn1.sf.net/license.html
+#
+import sys
+from pyasn1.codec.der import decoder as der_decoder
+from pyasn1.codec.der import encoder as der_encoder
+
+from pyasn1_modules import rfc5208, pem
+
+try:
+    import unittest2 as unittest
+except ImportError:
+    import unittest
+
+
+class PrivateKeyInfoTestCase(unittest.TestCase):
+    pem_text = """\
+MIIBVgIBADANBgkqhkiG9w0BAQEFAASCAUAwggE8AgEAAkEAx8CO8E0MNgEKXXDf
+I1xqBmQ+Gp3Srkqp45OApIu4lZ97n5VJ5HljU9wXcPIfx29Le3w8hCPEkugpLsdV
+GWx+EQIDAQABAkEAiv3f+DGEh6ddsPszKQXK+LuTwy2CRajKYgJnBxf5zpG50XK4
+899An+x/pGYVmVED1f0JCbk3BUbv7HViLq0qgQIhAOYlQJaQ8KJBijDpjF62lcVr
+QrqFPM4+ZrHsw0dVY2CZAiEA3jE5ngkVPfjFWEr7wS50EJhGiYlQeY4l+hADGIhd
+XDkCIQDIHt5xzmif/nOGop5/gS7ssp8ch1zfTh2IW4NWlOZMCQIgLZmYo5BlpaRK
+jAZHiKwJ8eXuhAeEVo4PyTREDmLeFjECIQCfyUPDclPo2O8ycPpozwoGwvKFrNZJ
+VWRpRKqYnOAIXQ==
+"""
+
+    def setUp(self):
+        self.asn1Spec = rfc5208.PrivateKeyInfo()
+
+    def testDerCodec(self):
+
+        substrate = pem.readBase64fromText(self.pem_text)
+
+        asn1Object, rest = der_decoder.decode(substrate, asn1Spec=self.asn1Spec)
+
+        assert not rest
+        assert asn1Object.prettyPrint()
+        assert der_encoder.encode(asn1Object) == substrate
+
+
+class EncryptedPrivateKeyInfoInfoTestCase(unittest.TestCase):
+    pem_text = """\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+"""
+
+    def setUp(self):
+        self.asn1Spec = rfc5208.EncryptedPrivateKeyInfo()
+
+    def testDerCodec(self):
+        substrate = pem.readBase64fromText(self.pem_text)
+
+        asn1Object, rest = der_decoder.decode(substrate, asn1Spec=self.asn1Spec)
+
+        assert not rest
+        assert asn1Object.prettyPrint()
+        assert der_encoder.encode(asn1Object) == substrate
+
+
+suite = unittest.TestLoader().loadTestsFromModule(sys.modules[__name__])
+
+if __name__ == '__main__':
+    unittest.TextTestRunner(verbosity=2).run(suite)
diff --git a/tests/test_rfc5280.py b/tests/test_rfc5280.py
new file mode 100644
index 0000000..49983ef
--- /dev/null
+++ b/tests/test_rfc5280.py
@@ -0,0 +1,82 @@
+#
+# This file is part of pyasn1-modules software.
+#
+# Copyright (c) 2005-2017, Ilya Etingof <etingof@gmail.com>
+# License: http://pyasn1.sf.net/license.html
+#
+import sys
+from pyasn1.codec.der import decoder as der_decoder
+from pyasn1.codec.der import encoder as der_encoder
+
+from pyasn1_modules import rfc5280, pem
+
+try:
+    import unittest2 as unittest
+except ImportError:
+    import unittest
+
+
+class CertificateTestCase(unittest.TestCase):
+    pem_text = """\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+"""
+
+    def setUp(self):
+        self.asn1Spec = rfc5280.Certificate()
+
+    def testDerCodec(self):
+
+        substrate = pem.readBase64fromText(self.pem_text)
+
+        asn1Object, rest = der_decoder.decode(substrate, asn1Spec=self.asn1Spec)
+
+        assert not rest
+        assert asn1Object.prettyPrint()
+        assert der_encoder.encode(asn1Object) == substrate
+
+
+class CertificateListTestCase(unittest.TestCase):
+    pem_text = """\
+MIIBVjCBwAIBATANBgkqhkiG9w0BAQUFADB+MQswCQYDVQQGEwJBVTETMBEGA1UE
+CBMKU29tZS1TdGF0ZTEhMB8GA1UEChMYSW50ZXJuZXQgV2lkZ2l0cyBQdHkgTHRk
+MRUwEwYDVQQDEwxzbm1wbGFicy5jb20xIDAeBgkqhkiG9w0BCQEWEWluZm9Ac25t
+cGxhYnMuY29tFw0xMjA0MTExMzQwNTlaFw0xMjA1MTExMzQwNTlaoA4wDDAKBgNV
+HRQEAwIBATANBgkqhkiG9w0BAQUFAAOBgQC1D/wwnrcY/uFBHGc6SyoYss2kn+nY
+RTwzXmmldbNTCQ03x5vkWGGIaRJdN8QeCzbEi7gpgxgpxAx6Y5WkxkMQ1UPjNM5n
+DGVDOtR0dskFrrbHuNpWqWrDaBN0/ryZiWKjr9JRbrpkHgVY29I1gLooQ6IHuKHY
+vjnIhxTFoCb5vA==
+"""
+
+    def setUp(self):
+        self.asn1Spec = rfc5280.CertificateList()
+
+    def testDerCodec(self):
+
+        substrate = pem.readBase64fromText(self.pem_text)
+
+        asn1Object, rest = der_decoder.decode(substrate, asn1Spec=self.asn1Spec)
+
+        assert not rest
+        assert asn1Object.prettyPrint()
+        assert der_encoder.encode(asn1Object) == substrate
+
+
+suite = unittest.TestLoader().loadTestsFromModule(sys.modules[__name__])
+
+if __name__ == '__main__':
+    unittest.TextTestRunner(verbosity=2).run(suite)
diff --git a/tests/test_rfc5652.py b/tests/test_rfc5652.py
new file mode 100644
index 0000000..5fa4296
--- /dev/null
+++ b/tests/test_rfc5652.py
@@ -0,0 +1,87 @@
+#
+# This file is part of pyasn1-modules software.
+#
+# Copyright (c) 2005-2017, Ilya Etingof <etingof@gmail.com>
+# License: http://pyasn1.sf.net/license.html
+#
+import sys
+from pyasn1.codec.der import decoder as der_decoder
+from pyasn1.codec.der import encoder as der_encoder
+
+from pyasn1_modules import rfc5652, rfc6402, pem
+
+try:
+    import unittest2 as unittest
+except ImportError:
+    import unittest
+
+
+class ContentInfoTestCase(unittest.TestCase):
+    pem_text = """\
+MIIEJQYJKoZIhvcNAQcCoIIEFjCCBBICAQMxCzAJBgUrDgMCGgUAMIIDAgYIKwYBBQUHDAKgggL0
+BIIC8DCCAuwweDB2AgECBgorBgEEAYI3CgoBMWUwYwIBADADAgEBMVkwVwYJKwYBBAGCNxUUMUow
+SAIBBQwZcGl0dWNoYTEuZW1lYS5ocHFjb3JwLm5ldAwMRU1FQVxwaXR1Y2hhDBpDTUNSZXFHZW5l
+cmF0b3IudnNob3N0LmV4ZTCCAmqgggJmAgEBMIICXzCCAcgCAQAwADCBnzANBgkqhkiG9w0BAQEF
+AAOBjQAwgYkCgYEA0jm7SSSm2wyEAzuNKtFZFJKo91SrJq9wQwEhEKHDavZwMQOm1rZ2PF8NWCEb
+PqrhToQ7rtiGLSZa4dF4bzgmBqQ9aoSfEX4jISt31Vy+skHidXjHHpbsjT24NPhrZgANivL7CxD6
+Ft+s7qS1gL4HRm2twQkqSwOLrE/q2QeXl2UCAwEAAaCCAR0wGgYKKwYBBAGCNw0CAzEMFgo2LjIu
+OTIwMC4yMD4GCSqGSIb3DQEJDjExMC8wHQYDVR0OBBYEFMW2skn88gxhONWZQA4sWGBDb68yMA4G
+A1UdDwEB/wQEAwIHgDBXBgkrBgEEAYI3FRQxSjBIAgEFDBlwaXR1Y2hhMS5lbWVhLmhwcWNvcnAu
+bmV0DAxFTUVBXHBpdHVjaGEMGkNNQ1JlcUdlbmVyYXRvci52c2hvc3QuZXhlMGYGCisGAQQBgjcN
+AgIxWDBWAgECHk4ATQBpAGMAcgBvAHMAbwBmAHQAIABTAHQAcgBvAG4AZwAgAEMAcgB5AHAAdABv
+AGcAcgBhAHAAaABpAGMAIABQAHIAbwB2AGkAZABlAHIDAQAwDQYJKoZIhvcNAQEFBQADgYEAJZlu
+mxjtCxSOQi27jsVdd3y8NSIlzNv0b3LqmzvAly6L+CstXcnuG2MPQqPH9R7tbJonGUniBQO9sQ7C
+KhYWj2gfhiEkSID82lV5chINVUFKoUlSiEhWr0tPGgvOaqdsKQcrHfzrsBbFkhDqrFSVy7Yivbnh
+qYszKrOjJKiiCPMwADAAMYH5MIH2AgEDgBTFtrJJ/PIMYTjVmUAOLFhgQ2+vMjAJBgUrDgMCGgUA
+oD4wFwYJKoZIhvcNAQkDMQoGCCsGAQUFBwwCMCMGCSqGSIb3DQEJBDEWBBTFTkK/OifaFjwqHiJu
+xM7qXcg/VzANBgkqhkiG9w0BAQEFAASBgKfC6jOi1Wgy4xxDCQVK9+e5tktL8wE/j2cb9JSqq+aU
+5UxEgXEw7q7BoYZCAzcxMRriGzakXr8aXHcgkRJ7XcFvLPUjpmGg9SOZ2sGW4zQdWAwImN/i8loc
+xicQmJP+VoMHo/ZpjFY9fYCjNZUArgKsEwK/s+p9yrVVeB1Nf8Mn
+"""
+
+    def setUp(self):
+        self.asn1Spec = rfc5652.ContentInfo()
+
+    def testDerCodec(self):
+
+        substrate = pem.readBase64fromText(self.pem_text)
+
+        layers = {
+            rfc5652.id_ct_contentInfo: rfc5652.ContentInfo(),
+            rfc5652.id_signedData: rfc5652.SignedData(),
+            rfc6402.id_cct_PKIData: rfc6402.PKIData()
+        }
+
+        getNextLayer = {
+            rfc5652.id_ct_contentInfo: lambda x: x['contentType'],
+            rfc5652.id_signedData: lambda x: x['encapContentInfo']['eContentType'],
+            rfc6402.id_cct_PKIData: lambda x: None
+        }
+
+        getNextSubstrate = {
+            rfc5652.id_ct_contentInfo: lambda x: x['content'],
+            rfc5652.id_signedData: lambda x: x['encapContentInfo']['eContent'],
+            rfc6402.id_cct_PKIData: lambda x: None
+        }
+
+
+        next_layer = rfc5652.id_ct_contentInfo
+
+        while next_layer:
+
+            asn1Object, rest = der_decoder.decode(
+                substrate, asn1Spec=layers[next_layer]
+            )
+
+            assert not rest
+            assert asn1Object.prettyPrint()
+            assert der_encoder.encode(asn1Object) == substrate
+
+            substrate = getNextSubstrate[next_layer](asn1Object)
+            next_layer = getNextLayer[next_layer](asn1Object)
+
+
+suite = unittest.TestLoader().loadTestsFromModule(sys.modules[__name__])
+
+if __name__ == '__main__':
+    unittest.TextTestRunner(verbosity=2).run(suite)