The architecture has been updated

tests/test_display.py

@@ -1,85 +0,0 @@
-"""Tests for agent/display.py — build_tool_preview()."""
-
-import pytest
-from agent.display import build_tool_preview
-
-
-class TestBuildToolPreview:
-    """Tests for build_tool_preview defensive handling and normal operation."""
-
-    def test_none_args_returns_none(self):
-        """PR #453: None args should not crash, should return None."""
-        assert build_tool_preview("terminal", None) is None
-
-    def test_empty_dict_returns_none(self):
-        """Empty dict has no keys to preview."""
-        assert build_tool_preview("terminal", {}) is None
-
-    def test_known_tool_with_primary_arg(self):
-        """Known tool with its primary arg should return a preview string."""
-        result = build_tool_preview("terminal", {"command": "ls -la"})
-        assert result is not None
-        assert "ls -la" in result
-
-    def test_web_search_preview(self):
-        result = build_tool_preview("web_search", {"query": "hello world"})
-        assert result is not None
-        assert "hello world" in result
-
-    def test_read_file_preview(self):
-        result = build_tool_preview("read_file", {"path": "/tmp/test.py", "offset": 1})
-        assert result is not None
-        assert "/tmp/test.py" in result
-
-    def test_unknown_tool_with_fallback_key(self):
-        """Unknown tool but with a recognized fallback key should still preview."""
-        result = build_tool_preview("custom_tool", {"query": "test query"})
-        assert result is not None
-        assert "test query" in result
-
-    def test_unknown_tool_no_matching_key(self):
-        """Unknown tool with no recognized keys should return None."""
-        result = build_tool_preview("custom_tool", {"foo": "bar"})
-        assert result is None
-
-    def test_long_value_truncated(self):
-        """Preview should truncate long values."""
-        long_cmd = "a" * 100
-        result = build_tool_preview("terminal", {"command": long_cmd}, max_len=40)
-        assert result is not None
-        assert len(result) <= 43  # max_len + "..."
-
-    def test_process_tool_with_none_args(self):
-        """Process tool special case should also handle None args."""
-        assert build_tool_preview("process", None) is None
-
-    def test_process_tool_normal(self):
-        result = build_tool_preview("process", {"action": "poll", "session_id": "abc123"})
-        assert result is not None
-        assert "poll" in result
-
-    def test_todo_tool_read(self):
-        result = build_tool_preview("todo", {"merge": False})
-        assert result is not None
-        assert "reading" in result
-
-    def test_todo_tool_with_todos(self):
-        result = build_tool_preview("todo", {"todos": [{"id": "1", "content": "test", "status": "pending"}]})
-        assert result is not None
-        assert "1 task" in result
-
-    def test_memory_tool_add(self):
-        result = build_tool_preview("memory", {"action": "add", "target": "user", "content": "test note"})
-        assert result is not None
-        assert "user" in result
-
-    def test_session_search_preview(self):
-        result = build_tool_preview("session_search", {"query": "find something"})
-        assert result is not None
-        assert "find something" in result
-
-    def test_false_like_args_zero(self):
-        """Non-dict falsy values should return None, not crash."""
-        assert build_tool_preview("terminal", 0) is None
-        assert build_tool_preview("terminal", "") is None
-        assert build_tool_preview("terminal", []) is None