M3 implementada e backlog atualizado

RI/tests/unit/test_prompt_version_store.py

@@ -0,0 +1,66 @@
+"""Prompt versioning (EP-13-T04, `could`)."""
+
+from __future__ import annotations
+
+from pathlib import Path
+
+import pytest
+from example_agent.prompts.store import PromptVersionStore, UnknownPromptError
+
+REPO_ROOT = Path(__file__).parents[2]
+V1_PROMPT = REPO_ROOT / "agents" / "example_agent" / "prompts" / "v1.txt"
+
+
+def test_publish_creates_version_one_for_a_new_prompt() -> None:
+    store = PromptVersionStore()
+
+    version = store.publish("system", "hello")
+
+    assert version.version == 1
+    assert version.content == "hello"
+
+
+def test_a_prompt_change_creates_a_new_version_without_overwriting_the_previous_one() -> None:
+    store = PromptVersionStore()
+    store.publish("system", "v1 content")
+
+    second = store.publish("system", "v2 content")
+
+    history = store.history("system")
+    assert [v.content for v in history] == ["v1 content", "v2 content"]
+    assert second.version == 2
+
+
+def test_latest_returns_the_most_recently_published_version() -> None:
+    store = PromptVersionStore()
+    store.publish("system", "v1 content")
+    store.publish("system", "v2 content")
+
+    assert store.latest("system").content == "v2 content"
+
+
+def test_publishing_identical_content_still_creates_a_new_trackable_version() -> None:
+    store = PromptVersionStore()
+    store.publish("system", "same content")
+
+    second = store.publish("system", "same content")
+
+    assert second.version == 2
+    assert len(store.history("system")) == 2
+
+
+def test_latest_raises_for_an_unpublished_prompt_name() -> None:
+    store = PromptVersionStore()
+
+    with pytest.raises(UnknownPromptError):
+        store.latest("does-not-exist")
+
+
+def test_the_seed_v1_prompt_file_can_be_published() -> None:
+    store = PromptVersionStore()
+    content = V1_PROMPT.read_text(encoding="utf-8").strip()
+
+    version = store.publish("example-agent-system", content)
+
+    assert version.content == content
+    assert "tools you are given" in version.content