diff --git a/setup.cfg b/setup.cfg
index dc721c76..d6bc1084 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -73,6 +73,7 @@ testing =
     pytest-xdist >= 2
     aboutcode-toolkit >= 6.0.0
     black
+    commoncode
 
 docs =
     Sphinx >= 3.3.1
diff --git a/src/univers/versions.py b/src/univers/versions.py
index 29cdedd0..3e8caa72 100644
--- a/src/univers/versions.py
+++ b/src/univers/versions.py
@@ -6,7 +6,6 @@
 
 from functools import total_ordering
 import functools
-import re
 
 import attr
 import semantic_version
diff --git a/tests/data/openssl/openssl_all_versions.txt b/tests/data/openssl/openssl_all_versions.txt
new file mode 100644
index 00000000..2c746a16
--- /dev/null
+++ b/tests/data/openssl/openssl_all_versions.txt
@@ -0,0 +1,172 @@
+3.0.0
+3.0.1
+1.1.1
+1.1.1a
+1.1.1b
+1.1.1c
+1.1.1d
+1.1.1e
+1.1.1f
+1.1.1g
+1.1.1h
+1.1.1i
+1.1.1j
+1.1.1k
+1.1.1l
+1.1.1m
+1.0.2
+1.0.2a
+1.0.2b
+1.0.2c
+1.0.2d
+1.0.2e
+1.0.2f
+1.0.2g
+1.0.2h
+1.0.2i
+1.0.2j
+1.0.2k
+1.0.2l
+1.0.2m
+1.0.2n
+1.0.2o
+1.0.2p
+1.0.2q
+1.0.2r
+1.0.2s
+1.0.2t
+1.0.2u
+1.0.2v
+1.0.2w
+1.0.2x
+1.0.2y
+1.0.2za
+1.0.2zb
+1.0.2zc
+3.0.2
+1.1.1n
+1.0.2zd
+1.0.2zc-dev
+1.1.0
+1.1.0a
+1.1.0b
+1.1.0c
+1.1.0d
+1.1.0e
+1.1.0f
+1.1.0g
+1.1.0h
+1.1.0i
+1.1.0j
+1.1.0k
+1.1.0l
+1.0.1
+1.0.1a
+1.0.1b
+1.0.1c
+1.0.1d
+1.0.1e
+1.0.1f
+1.0.1g
+1.0.1h
+1.0.1i
+1.0.1j
+1.0.1k
+1.0.1l
+1.0.1m
+1.0.1n
+1.0.1o
+1.0.1p
+1.0.1q
+1.0.1r
+1.0.1s
+1.0.1t
+1.0.1u
+0.9.8
+0.9.8a
+0.9.8b
+0.9.8c
+0.9.8d
+0.9.8e
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+0.9.8h
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+0.9.8l
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+0.9.8q
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+0.9.8u
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+0.9.8w
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+0.9.8za
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+1.0.0c
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+1.0.0e
+1.0.0f
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+1.0.0l
+1.0.0m
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+1.0.0o
+1.0.0p
+1.0.0q
+0.9.8zf
+1.0.0r
+0.9.8zg
+1.0.0h
+1.0.0s
+1.0.0t
+0.9.8zh
+0.9.6
+0.9.6a
+0.9.6b
+0.9.6c
+0.9.6d
+0.9.6e
+0.9.7-beta3
+0.9.7-beta5
+0.9.7-beta1
+0.9.7-alpha3
+0.9.7-alpha2
+0.9.7
+0.9.6f
+0.9.6g
+0.9.6h
+0.9.7a
+0.9.6i
+0.9.6j
+0.9.7b
+0.9.7c
+0.9.6k
+0.9.6l
+0.9.7d
+0.9.6m
+0.9.7e
+0.9.7f
+0.9.6-cvs
+0.9.7g
+0.9.7h
+0.9.7i
+0.9.7j
+0.9.7k
+0.9.7l
\ No newline at end of file
diff --git a/tests/data/openssl/openssl_versort_expected.json b/tests/data/openssl/openssl_versort_expected.json
new file mode 100644
index 00000000..cb62a14e
--- /dev/null
+++ b/tests/data/openssl/openssl_versort_expected.json
@@ -0,0 +1,862 @@
+[
+  {
+    "string": "0.9.6",
+    "normalized_string": "0.9.6",
+    "value": "0.9.6"
+  },
+  {
+    "string": "0.9.6-cvs",
+    "normalized_string": "0.9.6-cvs",
+    "value": "0.9.6-cvs"
+  },
+  {
+    "string": "0.9.6a",
+    "normalized_string": "0.9.6a",
+    "value": "0.9.6a"
+  },
+  {
+    "string": "0.9.6b",
+    "normalized_string": "0.9.6b",
+    "value": "0.9.6b"
+  },
+  {
+    "string": "0.9.6c",
+    "normalized_string": "0.9.6c",
+    "value": "0.9.6c"
+  },
+  {
+    "string": "0.9.6d",
+    "normalized_string": "0.9.6d",
+    "value": "0.9.6d"
+  },
+  {
+    "string": "0.9.6e",
+    "normalized_string": "0.9.6e",
+    "value": "0.9.6e"
+  },
+  {
+    "string": "0.9.6f",
+    "normalized_string": "0.9.6f",
+    "value": "0.9.6f"
+  },
+  {
+    "string": "0.9.6g",
+    "normalized_string": "0.9.6g",
+    "value": "0.9.6g"
+  },
+  {
+    "string": "0.9.6h",
+    "normalized_string": "0.9.6h",
+    "value": "0.9.6h"
+  },
+  {
+    "string": "0.9.6i",
+    "normalized_string": "0.9.6i",
+    "value": "0.9.6i"
+  },
+  {
+    "string": "0.9.6j",
+    "normalized_string": "0.9.6j",
+    "value": "0.9.6j"
+  },
+  {
+    "string": "0.9.6k",
+    "normalized_string": "0.9.6k",
+    "value": "0.9.6k"
+  },
+  {
+    "string": "0.9.6l",
+    "normalized_string": "0.9.6l",
+    "value": "0.9.6l"
+  },
+  {
+    "string": "0.9.6m",
+    "normalized_string": "0.9.6m",
+    "value": "0.9.6m"
+  },
+  {
+    "string": "0.9.7-alpha2",
+    "normalized_string": "0.9.7-alpha2",
+    "value": "0.9.7-alpha2"
+  },
+  {
+    "string": "0.9.7-alpha3",
+    "normalized_string": "0.9.7-alpha3",
+    "value": "0.9.7-alpha3"
+  },
+  {
+    "string": "0.9.7-beta1",
+    "normalized_string": "0.9.7-beta1",
+    "value": "0.9.7-beta1"
+  },
+  {
+    "string": "0.9.7-beta3",
+    "normalized_string": "0.9.7-beta3",
+    "value": "0.9.7-beta3"
+  },
+  {
+    "string": "0.9.7-beta5",
+    "normalized_string": "0.9.7-beta5",
+    "value": "0.9.7-beta5"
+  },
+  {
+    "string": "0.9.7",
+    "normalized_string": "0.9.7",
+    "value": "0.9.7"
+  },
+  {
+    "string": "0.9.7a",
+    "normalized_string": "0.9.7a",
+    "value": "0.9.7a"
+  },
+  {
+    "string": "0.9.7b",
+    "normalized_string": "0.9.7b",
+    "value": "0.9.7b"
+  },
+  {
+    "string": "0.9.7c",
+    "normalized_string": "0.9.7c",
+    "value": "0.9.7c"
+  },
+  {
+    "string": "0.9.7d",
+    "normalized_string": "0.9.7d",
+    "value": "0.9.7d"
+  },
+  {
+    "string": "0.9.7e",
+    "normalized_string": "0.9.7e",
+    "value": "0.9.7e"
+  },
+  {
+    "string": "0.9.7f",
+    "normalized_string": "0.9.7f",
+    "value": "0.9.7f"
+  },
+  {
+    "string": "0.9.7g",
+    "normalized_string": "0.9.7g",
+    "value": "0.9.7g"
+  },
+  {
+    "string": "0.9.7h",
+    "normalized_string": "0.9.7h",
+    "value": "0.9.7h"
+  },
+  {
+    "string": "0.9.7i",
+    "normalized_string": "0.9.7i",
+    "value": "0.9.7i"
+  },
+  {
+    "string": "0.9.7j",
+    "normalized_string": "0.9.7j",
+    "value": "0.9.7j"
+  },
+  {
+    "string": "0.9.7k",
+    "normalized_string": "0.9.7k",
+    "value": "0.9.7k"
+  },
+  {
+    "string": "0.9.7l",
+    "normalized_string": "0.9.7l",
+    "value": "0.9.7l"
+  },
+  {
+    "string": "0.9.8",
+    "normalized_string": "0.9.8",
+    "value": "0.9.8"
+  },
+  {
+    "string": "0.9.8v",
+    "normalized_string": "0.9.8",
+    "value": "0.9.8"
+  },
+  {
+    "string": "0.9.8a",
+    "normalized_string": "0.9.8a",
+    "value": "0.9.8a"
+  },
+  {
+    "string": "0.9.8b",
+    "normalized_string": "0.9.8b",
+    "value": "0.9.8b"
+  },
+  {
+    "string": "0.9.8c",
+    "normalized_string": "0.9.8c",
+    "value": "0.9.8c"
+  },
+  {
+    "string": "0.9.8d",
+    "normalized_string": "0.9.8d",
+    "value": "0.9.8d"
+  },
+  {
+    "string": "0.9.8e",
+    "normalized_string": "0.9.8e",
+    "value": "0.9.8e"
+  },
+  {
+    "string": "0.9.8f",
+    "normalized_string": "0.9.8f",
+    "value": "0.9.8f"
+  },
+  {
+    "string": "0.9.8g",
+    "normalized_string": "0.9.8g",
+    "value": "0.9.8g"
+  },
+  {
+    "string": "0.9.8h",
+    "normalized_string": "0.9.8h",
+    "value": "0.9.8h"
+  },
+  {
+    "string": "0.9.8i",
+    "normalized_string": "0.9.8i",
+    "value": "0.9.8i"
+  },
+  {
+    "string": "0.9.8j",
+    "normalized_string": "0.9.8j",
+    "value": "0.9.8j"
+  },
+  {
+    "string": "0.9.8k",
+    "normalized_string": "0.9.8k",
+    "value": "0.9.8k"
+  },
+  {
+    "string": "0.9.8l",
+    "normalized_string": "0.9.8l",
+    "value": "0.9.8l"
+  },
+  {
+    "string": "0.9.8m",
+    "normalized_string": "0.9.8m",
+    "value": "0.9.8m"
+  },
+  {
+    "string": "0.9.8n",
+    "normalized_string": "0.9.8n",
+    "value": "0.9.8n"
+  },
+  {
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+    "normalized_string": "0.9.8o",
+    "value": "0.9.8o"
+  },
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+    "normalized_string": "0.9.8p",
+    "value": "0.9.8p"
+  },
+  {
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+    "normalized_string": "0.9.8q",
+    "value": "0.9.8q"
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+    "normalized_string": "0.9.8r",
+    "value": "0.9.8r"
+  },
+  {
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+    "normalized_string": "0.9.8s",
+    "value": "0.9.8s"
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+    "normalized_string": "0.9.8t",
+    "value": "0.9.8t"
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+    "normalized_string": "0.9.8u",
+    "value": "0.9.8u"
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+    "normalized_string": "0.9.8w",
+    "value": "0.9.8w"
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+  {
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+    "normalized_string": "0.9.8x",
+    "value": "0.9.8x"
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+  {
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+    "normalized_string": "0.9.8y",
+    "value": "0.9.8y"
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+  {
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+    "normalized_string": "0.9.8za",
+    "value": "0.9.8za"
+  },
+  {
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+    "normalized_string": "0.9.8zb",
+    "value": "0.9.8zb"
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+    "value": "0.9.8zc"
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+    "value": "0.9.8ze"
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+  },
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+    "normalized_string": "1.0.0j",
+    "value": "1.0.0j"
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+  {
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+    "normalized_string": "1.0.0k",
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+  },
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+    "normalized_string": "1.0.0l",
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+  },
+  {
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+    "normalized_string": "1.0.0m",
+    "value": "1.0.0m"
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+    "normalized_string": "1.0.0n",
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+  {
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+    "normalized_string": "1.0.0o",
+    "value": "1.0.0o"
+  },
+  {
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+    "normalized_string": "1.0.0p",
+    "value": "1.0.0p"
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+  {
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+    "normalized_string": "1.0.0q",
+    "value": "1.0.0q"
+  },
+  {
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+    "normalized_string": "1.0.0r",
+    "value": "1.0.0r"
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+  {
+    "string": "1.0.0s",
+    "normalized_string": "1.0.0s",
+    "value": "1.0.0s"
+  },
+  {
+    "string": "1.0.0t",
+    "normalized_string": "1.0.0t",
+    "value": "1.0.0t"
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+  {
+    "string": "1.0.1",
+    "normalized_string": "1.0.1",
+    "value": "1.0.1"
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+  {
+    "string": "1.0.1a",
+    "normalized_string": "1.0.1a",
+    "value": "1.0.1a"
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+  {
+    "string": "1.0.1b",
+    "normalized_string": "1.0.1b",
+    "value": "1.0.1b"
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+  {
+    "string": "1.0.1c",
+    "normalized_string": "1.0.1c",
+    "value": "1.0.1c"
+  },
+  {
+    "string": "1.0.1d",
+    "normalized_string": "1.0.1d",
+    "value": "1.0.1d"
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+  {
+    "string": "1.0.1e",
+    "normalized_string": "1.0.1e",
+    "value": "1.0.1e"
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+  {
+    "string": "1.0.1f",
+    "normalized_string": "1.0.1f",
+    "value": "1.0.1f"
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+    "normalized_string": "1.0.1g",
+    "value": "1.0.1g"
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+  {
+    "string": "1.0.1h",
+    "normalized_string": "1.0.1h",
+    "value": "1.0.1h"
+  },
+  {
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+    "normalized_string": "1.0.1i",
+    "value": "1.0.1i"
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+  {
+    "string": "1.0.1j",
+    "normalized_string": "1.0.1j",
+    "value": "1.0.1j"
+  },
+  {
+    "string": "1.0.1k",
+    "normalized_string": "1.0.1k",
+    "value": "1.0.1k"
+  },
+  {
+    "string": "1.0.1l",
+    "normalized_string": "1.0.1l",
+    "value": "1.0.1l"
+  },
+  {
+    "string": "1.0.1m",
+    "normalized_string": "1.0.1m",
+    "value": "1.0.1m"
+  },
+  {
+    "string": "1.0.1n",
+    "normalized_string": "1.0.1n",
+    "value": "1.0.1n"
+  },
+  {
+    "string": "1.0.1o",
+    "normalized_string": "1.0.1o",
+    "value": "1.0.1o"
+  },
+  {
+    "string": "1.0.1p",
+    "normalized_string": "1.0.1p",
+    "value": "1.0.1p"
+  },
+  {
+    "string": "1.0.1q",
+    "normalized_string": "1.0.1q",
+    "value": "1.0.1q"
+  },
+  {
+    "string": "1.0.1r",
+    "normalized_string": "1.0.1r",
+    "value": "1.0.1r"
+  },
+  {
+    "string": "1.0.1s",
+    "normalized_string": "1.0.1s",
+    "value": "1.0.1s"
+  },
+  {
+    "string": "1.0.1t",
+    "normalized_string": "1.0.1t",
+    "value": "1.0.1t"
+  },
+  {
+    "string": "1.0.1u",
+    "normalized_string": "1.0.1u",
+    "value": "1.0.1u"
+  },
+  {
+    "string": "1.0.2",
+    "normalized_string": "1.0.2",
+    "value": "1.0.2"
+  },
+  {
+    "string": "1.0.2v",
+    "normalized_string": "1.0.2",
+    "value": "1.0.2"
+  },
+  {
+    "string": "1.0.2a",
+    "normalized_string": "1.0.2a",
+    "value": "1.0.2a"
+  },
+  {
+    "string": "1.0.2b",
+    "normalized_string": "1.0.2b",
+    "value": "1.0.2b"
+  },
+  {
+    "string": "1.0.2c",
+    "normalized_string": "1.0.2c",
+    "value": "1.0.2c"
+  },
+  {
+    "string": "1.0.2d",
+    "normalized_string": "1.0.2d",
+    "value": "1.0.2d"
+  },
+  {
+    "string": "1.0.2e",
+    "normalized_string": "1.0.2e",
+    "value": "1.0.2e"
+  },
+  {
+    "string": "1.0.2f",
+    "normalized_string": "1.0.2f",
+    "value": "1.0.2f"
+  },
+  {
+    "string": "1.0.2g",
+    "normalized_string": "1.0.2g",
+    "value": "1.0.2g"
+  },
+  {
+    "string": "1.0.2h",
+    "normalized_string": "1.0.2h",
+    "value": "1.0.2h"
+  },
+  {
+    "string": "1.0.2i",
+    "normalized_string": "1.0.2i",
+    "value": "1.0.2i"
+  },
+  {
+    "string": "1.0.2j",
+    "normalized_string": "1.0.2j",
+    "value": "1.0.2j"
+  },
+  {
+    "string": "1.0.2k",
+    "normalized_string": "1.0.2k",
+    "value": "1.0.2k"
+  },
+  {
+    "string": "1.0.2l",
+    "normalized_string": "1.0.2l",
+    "value": "1.0.2l"
+  },
+  {
+    "string": "1.0.2m",
+    "normalized_string": "1.0.2m",
+    "value": "1.0.2m"
+  },
+  {
+    "string": "1.0.2n",
+    "normalized_string": "1.0.2n",
+    "value": "1.0.2n"
+  },
+  {
+    "string": "1.0.2o",
+    "normalized_string": "1.0.2o",
+    "value": "1.0.2o"
+  },
+  {
+    "string": "1.0.2p",
+    "normalized_string": "1.0.2p",
+    "value": "1.0.2p"
+  },
+  {
+    "string": "1.0.2q",
+    "normalized_string": "1.0.2q",
+    "value": "1.0.2q"
+  },
+  {
+    "string": "1.0.2r",
+    "normalized_string": "1.0.2r",
+    "value": "1.0.2r"
+  },
+  {
+    "string": "1.0.2s",
+    "normalized_string": "1.0.2s",
+    "value": "1.0.2s"
+  },
+  {
+    "string": "1.0.2t",
+    "normalized_string": "1.0.2t",
+    "value": "1.0.2t"
+  },
+  {
+    "string": "1.0.2u",
+    "normalized_string": "1.0.2u",
+    "value": "1.0.2u"
+  },
+  {
+    "string": "1.0.2w",
+    "normalized_string": "1.0.2w",
+    "value": "1.0.2w"
+  },
+  {
+    "string": "1.0.2x",
+    "normalized_string": "1.0.2x",
+    "value": "1.0.2x"
+  },
+  {
+    "string": "1.0.2y",
+    "normalized_string": "1.0.2y",
+    "value": "1.0.2y"
+  },
+  {
+    "string": "1.0.2za",
+    "normalized_string": "1.0.2za",
+    "value": "1.0.2za"
+  },
+  {
+    "string": "1.0.2zb",
+    "normalized_string": "1.0.2zb",
+    "value": "1.0.2zb"
+  },
+  {
+    "string": "1.0.2zc",
+    "normalized_string": "1.0.2zc",
+    "value": "1.0.2zc"
+  },
+  {
+    "string": "1.0.2zc-dev",
+    "normalized_string": "1.0.2zc-de",
+    "value": "1.0.2zc-de"
+  },
+  {
+    "string": "1.0.2zd",
+    "normalized_string": "1.0.2zd",
+    "value": "1.0.2zd"
+  },
+  {
+    "string": "1.1.0",
+    "normalized_string": "1.1.0",
+    "value": "1.1.0"
+  },
+  {
+    "string": "1.1.0a",
+    "normalized_string": "1.1.0a",
+    "value": "1.1.0a"
+  },
+  {
+    "string": "1.1.0b",
+    "normalized_string": "1.1.0b",
+    "value": "1.1.0b"
+  },
+  {
+    "string": "1.1.0c",
+    "normalized_string": "1.1.0c",
+    "value": "1.1.0c"
+  },
+  {
+    "string": "1.1.0d",
+    "normalized_string": "1.1.0d",
+    "value": "1.1.0d"
+  },
+  {
+    "string": "1.1.0e",
+    "normalized_string": "1.1.0e",
+    "value": "1.1.0e"
+  },
+  {
+    "string": "1.1.0f",
+    "normalized_string": "1.1.0f",
+    "value": "1.1.0f"
+  },
+  {
+    "string": "1.1.0g",
+    "normalized_string": "1.1.0g",
+    "value": "1.1.0g"
+  },
+  {
+    "string": "1.1.0h",
+    "normalized_string": "1.1.0h",
+    "value": "1.1.0h"
+  },
+  {
+    "string": "1.1.0i",
+    "normalized_string": "1.1.0i",
+    "value": "1.1.0i"
+  },
+  {
+    "string": "1.1.0j",
+    "normalized_string": "1.1.0j",
+    "value": "1.1.0j"
+  },
+  {
+    "string": "1.1.0k",
+    "normalized_string": "1.1.0k",
+    "value": "1.1.0k"
+  },
+  {
+    "string": "1.1.0l",
+    "normalized_string": "1.1.0l",
+    "value": "1.1.0l"
+  },
+  {
+    "string": "1.1.1",
+    "normalized_string": "1.1.1",
+    "value": "1.1.1"
+  },
+  {
+    "string": "1.1.1a",
+    "normalized_string": "1.1.1a",
+    "value": "1.1.1a"
+  },
+  {
+    "string": "1.1.1b",
+    "normalized_string": "1.1.1b",
+    "value": "1.1.1b"
+  },
+  {
+    "string": "1.1.1c",
+    "normalized_string": "1.1.1c",
+    "value": "1.1.1c"
+  },
+  {
+    "string": "1.1.1d",
+    "normalized_string": "1.1.1d",
+    "value": "1.1.1d"
+  },
+  {
+    "string": "1.1.1e",
+    "normalized_string": "1.1.1e",
+    "value": "1.1.1e"
+  },
+  {
+    "string": "1.1.1f",
+    "normalized_string": "1.1.1f",
+    "value": "1.1.1f"
+  },
+  {
+    "string": "1.1.1g",
+    "normalized_string": "1.1.1g",
+    "value": "1.1.1g"
+  },
+  {
+    "string": "1.1.1h",
+    "normalized_string": "1.1.1h",
+    "value": "1.1.1h"
+  },
+  {
+    "string": "1.1.1i",
+    "normalized_string": "1.1.1i",
+    "value": "1.1.1i"
+  },
+  {
+    "string": "1.1.1j",
+    "normalized_string": "1.1.1j",
+    "value": "1.1.1j"
+  },
+  {
+    "string": "1.1.1k",
+    "normalized_string": "1.1.1k",
+    "value": "1.1.1k"
+  },
+  {
+    "string": "1.1.1l",
+    "normalized_string": "1.1.1l",
+    "value": "1.1.1l"
+  },
+  {
+    "string": "1.1.1m",
+    "normalized_string": "1.1.1m",
+    "value": "1.1.1m"
+  },
+  {
+    "string": "1.1.1n",
+    "normalized_string": "1.1.1n",
+    "value": "1.1.1n"
+  },
+  {
+    "string": "3.0.0",
+    "normalized_string": "3.0.0",
+    "value": "3.0.0"
+  },
+  {
+    "string": "3.0.1",
+    "normalized_string": "3.0.1",
+    "value": "3.0.1"
+  },
+  {
+    "string": "3.0.2",
+    "normalized_string": "3.0.2",
+    "value": "3.0.2"
+  }
+]
\ No newline at end of file
diff --git a/tests/test_openssl_versort.py b/tests/test_openssl_versort.py
new file mode 100644
index 00000000..6706fed4
--- /dev/null
+++ b/tests/test_openssl_versort.py
@@ -0,0 +1,33 @@
+#
+# Copyright (c) nexB Inc. and others.
+# SPDX-License-Identifier: Apache-2.0
+#
+# Visit https://aboutcode.org and https://github.com/nexB/univers for support and download.
+
+from pathlib import Path
+
+from commoncode import testcase
+from tests import util_tests
+from univers.versions import OpensslVersion
+
+
+class TestOpenssl(testcase.FileBasedTesting):
+    test_data_dir = str(Path(__file__).resolve().parent / "data" / "openssl")
+
+    def test_openssl_version_sort(self):
+        versions_file = self.get_test_loc("openssl_all_versions.txt")
+        with open(versions_file) as f:
+            all_openssl_versions = f.readlines()
+        results = [OpensslVersion(x.strip()) for x in all_openssl_versions]
+        results.sort()
+        results = [version_to_dict(x) for x in results]
+        expected_file = self.get_test_loc("openssl_versort_expected.json", must_exist=False)
+        util_tests.check_results_against_json(results, expected_file)
+
+
+def version_to_dict(version):
+    return {
+        "string": version.string,
+        "normalized_string": version.normalized_string,
+        "value": str(version.value),
+    }
diff --git a/tests/util_tests.py b/tests/util_tests.py
new file mode 100644
index 00000000..023678c0
--- /dev/null
+++ b/tests/util_tests.py
@@ -0,0 +1,45 @@
+#
+# Copyright (c) nexB Inc. and others.
+# SPDX-License-Identifier: Apache-2.0
+#
+# Visit https://aboutcode.org and https://github.com/nexB/univers for support and download.
+
+import json
+import os
+
+import saneyaml
+
+"""
+Shared testing utilities
+"""
+
+# Used for tests to regenerate fixtures with regen=True: run a test with this
+# env. var set to any value to regenarte expected result files. For example with:
+# "UNIVERS_REGEN_TEST_FIXTURES=yes pytest -vvs tests"
+UNIVERS_REGEN_TEST_FIXTURES = os.getenv("UNIVERS_REGEN_TEST_FIXTURES", False)
+
+
+def check_results_against_json(
+    results,
+    expected_file,
+    regen=UNIVERS_REGEN_TEST_FIXTURES,
+):
+    """
+    Check the JSON-serializable mapping or sequence ``results`` against the
+    expected  data in the JSON ``expected_file``
+
+    If ``regen`` is True, the ``expected_file`` is overwritten with the
+    ``results`` data. This is convenient for updating tests expectations.
+    """
+    if regen:
+        with open(expected_file, "w") as reg:
+            json.dump(results, reg, indent=2, separators=(",", ": "))
+        expected = results
+    else:
+        with open(expected_file) as exp:
+            expected = json.load(exp)
+
+    # NOTE we redump the JSON as a YAML string for easier display of
+    # the failures comparison/diff
+    if results != expected:
+        assert saneyaml.dump(results) == saneyaml.dump(expected)