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fix: return explicit message when changes() compares identical versions #3

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Merged
practicalmind-dev merged 1 commit into from
May 28, 2026
Merged

fix: return explicit message when changes() compares identical versions #3

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3 changes: 3 additions & 0 deletions graver/core.py
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Original file line number Diff line number Diff line change
Expand Up @@ -84,6 +84,9 @@ def changes(self, v1: str | None = None, v2: str | None = None) -> str:
added = [line for line in result["added"] if line.strip()]
removed = [line for line in result["removed"] if line.strip()]

if not added and not removed:
return f"No changes between {v1} and {v2}."

lines = [
f"\n{self.name} | {v1} -> {v2}",
"=" * 55,
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9 changes: 9 additions & 0 deletions tests/test_core.py
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Original file line number Diff line number Diff line change
Expand Up @@ -205,3 +205,12 @@ def test_list_all_returns_sorted(tmp_path):
Prompt("alpha", base_dir=str(tmp_path)).save("content")
names = Prompt.list_all(base_dir=str(tmp_path))
assert names == sorted(names)


def test_changes_identical_versions_returns_no_changes_message(tmp_path):
p = Prompt("system", base_dir=str(tmp_path))
same_content = "You are a helpful assistant."
p.save(same_content)
p.save(same_content)
result = p.changes()
assert result == "No changes between v1 and v2."
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