fix: support == as pinned

src/poetry_plugin_up/command.py

@@ -159,7 +159,7 @@ def is_bumpable(
 
         constraint = dependency.pretty_constraint
         if not latest:
-            if constraint[0].isdigit():
+            if is_pinned(constraint):
                 # pinned
                 return False
             if constraint[0] == "*":
@@ -182,7 +182,7 @@ def is_bumpable(
                 return False
 
         if not pinned:
-            if constraint[0].isdigit():
+            if is_pinned(constraint):
                 # pinned
                 return False
 
@@ -218,3 +218,8 @@ def bump_version_in_pyproject_content(
                 section[dependency.pretty_name] = new_version
             elif "version" in section.get(dependency.pretty_name, {}):
                 section[dependency.pretty_name]["version"] = new_version
+
+
+def is_pinned(version: str) -> bool:
+    """Returns if `version` is an exact version."""
+    return version[0].isdigit() or version[:2] == "=="

tests/unit/test_unit.py

@@ -1,6 +1,7 @@
 from poetry.core.packages.dependency import Dependency
 from tomlkit import parse
 
+from src.poetry_plugin_up.command import is_pinned
 from tests.helpers import TestUpCommand
 
 
@@ -387,6 +388,30 @@ def test_is_bumpable_is_true_when_version_pinned_and_latest_and_pinned(
     assert is_bumpable is True
 
 
+def test_is_pinned() -> None:
+    assert is_pinned("1.1.1")
+    assert is_pinned("==1.1.1")
+    assert not is_pinned("^1.1.1")
+    assert not is_pinned(">=1.1.1")
+    assert not is_pinned("~1.1.1")
+
+
+def test_is_bumpable_is_false_when_version_pinned_with_with_equals_and_latest(
+    up_cmd_tester: TestUpCommand,
+) -> None:
+    dependency = Dependency(
+        name="foo",
+        constraint="==1.2.3",
+    )
+    is_bumpable = up_cmd_tester.is_bumpable(
+        dependency=dependency,
+        only_packages=[],
+        latest=True,
+        pinned=False,
+    )
+    assert is_bumpable is False
+
+
 def test_is_bumpable_is_true_when_version_wildcard_and_latest(
     up_cmd_tester: TestUpCommand,
 ) -> None: