1 files changed, 101 insertions, 0 deletions
diff --git a/python/mozrelease/test/test_versions.py b/python/mozrelease/test/test_versions.py
new file mode 100644
index 0000000000..f3bca91f1f
--- /dev/null
+++ b/python/mozrelease/test/test_versions.py
@@ -0,0 +1,101 @@
+import mozunit
+import pytest
+
+from mozrelease.versions import MozillaVersion
+
+ALL_VERSIONS = [  # Keep this sorted
+    "3.0",
+    "3.0.1",
+    "3.0.2",
+    "3.0.3",
+    "3.0.4",
+    "3.0.5",
+    "3.0.6",
+    "3.0.7",
+    "3.0.8",
+    "3.0.9",
+    "3.0.10",
+    "3.0.11",
+    "3.0.12",
+    "3.0.13",
+    "3.0.14",
+    "3.0.15",
+    "3.0.16",
+    "3.0.17",
+    "3.0.18",
+    "3.0.19",
+    "3.1b1",
+    "3.1b2",
+    "3.1b3",
+    "3.5b4",
+    "3.5b99",
+    "3.5rc1",
+    "3.5rc2",
+    "3.5rc3",
+    "3.5",
+    "3.5.1",
+    "3.5.2",
+    "3.5.3",
+    "3.5.4",
+    "3.5.5",
+    "3.5.6",
+    "3.5.7",
+    "3.5.8",
+    "3.5.9",
+    "3.5.10",
+    # ... Start skipping around...
+    "4.0b9",
+    "10.0.2esr",
+    "10.0.3esr",
+    "32.0",
+    "49.0a1",
+    "49.0a2",
+    "59.0",
+    "60.0",
+    "60.0esr",
+    "60.0.1esr",
+    "60.1",
+    "60.1esr",
+    "61.0",
+]
+
+
+@pytest.fixture(
+    scope="function",
+    params=range(len(ALL_VERSIONS) - 1),
+    ids=lambda x: "{}, {}".format(ALL_VERSIONS[x], ALL_VERSIONS[x + 1]),
+)
+def comparable_versions(request):
+    index = request.param
+    return ALL_VERSIONS[index], ALL_VERSIONS[index + 1]
+
+
+@pytest.mark.parametrize("version", ALL_VERSIONS)
+def test_versions_parseable(version):
+    """Test that we can parse previously shipped versions.
+
+    We only test 3.0 and up, since we never generate updates against
+    versions that old."""
+    assert MozillaVersion(version) is not None
+
+
+def test_versions_compare_less(comparable_versions):
+    """Test that versions properly compare in order."""
+    smaller_version, larger_version = comparable_versions
+    assert MozillaVersion(smaller_version) < MozillaVersion(larger_version)
+
+
+def test_versions_compare_greater(comparable_versions):
+    """Test that versions properly compare in order."""
+    smaller_version, larger_version = comparable_versions
+    assert MozillaVersion(larger_version) > MozillaVersion(smaller_version)
+
+
+@pytest.mark.parametrize("version", ALL_VERSIONS)
+def test_versions_compare_equal(version):
+    """Test that versions properly compare as equal through multiple passes."""
+    assert MozillaVersion(version) == MozillaVersion(version)
+
+
+if __name__ == "__main__":
+    mozunit.main()