add from_versions in VersionRange

Signed-off-by: Keshav Priyadarshi <git@keshav.space>

Author: keshav-space

src/univers/version_range.py

@@ -147,6 +147,22 @@ def from_string(cls, vers, simplify=False, validate=False):
 
         return range_class(parsed_constraints)
 
+    @classmethod
+    def from_versions(cls, sequence):
+        """
+        Return a VersionRange built from a list of version strings,
+        such as ["3.0.0", "1.0.1b", "3.0.2", "0.9.7a", "1.1.1ka"]
+        """
+        if not cls.scheme or not cls.version_class:
+            return NotImplementedError
+
+        constraints = []
+        for version in sequence:
+            version_obj = cls.version_class(version)
+            constraint = VersionConstraint(comparator="=", version=version_obj)
+            constraints.append(constraint)
+        return cls(constraints=constraints)
+
     def __str__(self):
         constraints = "|".join(str(c) for c in sorted(self.constraints))
         return f"vers:{self.scheme}/{constraints}"

tests/test_version_range.py

@@ -264,6 +264,20 @@ def test_OpensslVersionRange_from_native_mixed(self):
         version_range = OpensslVersionRange.from_native(openssl_range)
         assert version_range == expected
 
+    def test_OpensslVersionRange_from_versions(self):
+        sequence = ["3.0.0", "1.0.1b", "3.0.2", "0.9.7a ", "1.1.1ka"]
+        expected = OpensslVersionRange(
+            constraints=(
+                VersionConstraint(comparator="=", version=OpensslVersion(string="0.9.7a")),
+                VersionConstraint(comparator="=", version=OpensslVersion(string="1.0.1b")),
+                VersionConstraint(comparator="=", version=OpensslVersion(string="1.1.1ka")),
+                VersionConstraint(comparator="=", version=OpensslVersion(string="3.0.0")),
+                VersionConstraint(comparator="=", version=OpensslVersion(string="3.0.2")),
+            )
+        )
+        version_range = OpensslVersionRange.from_versions(sequence)
+        assert version_range == expected
+
 
 VERSION_RANGE_TESTS_BY_SCHEME = {
     "nginx": ["0.8.40+", "0.7.52-0.8.39", "0.9.10", "1.5.0+, 1.4.1+"],