Unit test generated by RoostGPT

.roost/runreport.json

@@ -0,0 +1,131 @@
+{
+  "run_id": "66bf2165",
+  "started_at": "2026-04-29T08:53:45.621073Z",
+  "ended_at": "2026-04-29T08:56:25.723592Z",
+  "status": "ok",
+  "config": {
+    "repo": "/private/var/tmp/Roost/RoostGPT/unit-adk-python/1777452750/source/adk-python",
+    "out": "/private/var/tmp/Roost/RoostGPT/unit-adk-python/1777452750/source/adk-python",
+    "workers": 5,
+    "scenarios_from": "planner",
+    "provider": "env:AI_TYPE",
+    "model": "gemini/gemini-3-flash-preview",
+    "jedi": true
+  },
+  "summary": {
+    "targets_total": 1,
+    "targets_passed": 1,
+    "targets_failed": 0,
+    "targets_partial": 0,
+    "targets_skipped": 0,
+    "scenarios_total": 7,
+    "scenarios_passed": 7,
+    "scenarios_failed": 0,
+    "coverage_weighted": null,
+    "llm_cost_usd": 0.1565,
+    "llm_input_tokens": 549347,
+    "llm_output_tokens": 17765,
+    "llm_cache_read_input_tokens": 380971,
+    "llm_cache_creation_input_tokens": 0,
+    "llm_api_calls": 18,
+    "elapsed_ms": 0
+  },
+  "targets": [
+    {
+      "target_symbol_id": "src.google.adk.a2a.converters.event_converter.convert_a2a_task_to_event",
+      "symbol_kind": "function",
+      "source_file": "src/google/adk/a2a/converters/event_converter.py",
+      "source_range": [
+        201,
+        265
+      ],
+      "test_file": "/private/var/tmp/Roost/RoostGPT/unit-adk-python/1777452750/source/adk-python/adk/a2a/converters/event_converter/test_convert_a2a_task_to_event.py",
+      "test_file_hash": "sha256:158d67202970f17d0a2764c6b77c2cc4fed47a1041ea91d5808d8d25ef8ec0b1",
+      "test_status": "passed",
+      "iterations": 18,
+      "pivots": 0,
+      "scenarios": [
+        {
+          "scenario_id": "src.google.adk.a2a.converters.event_converter.convert_a2a_task_to_event#0",
+          "scenario_name": "happy_path_artifacts",
+          "passed": true,
+          "duration_ms": null,
+          "failure_reason": null,
+          "stderr_excerpt": null
+        },
+        {
+          "scenario_id": "src.google.adk.a2a.converters.event_converter.convert_a2a_task_to_event#1",
+          "scenario_name": "happy_path_status_message",
+          "passed": true,
+          "duration_ms": null,
+          "failure_reason": null,
+          "stderr_excerpt": null
+        },
+        {
+          "scenario_id": "src.google.adk.a2a.converters.event_converter.convert_a2a_task_to_event#2",
+          "scenario_name": "happy_path_history",
+          "passed": true,
+          "duration_ms": null,
+          "failure_reason": null,
+          "stderr_excerpt": null
+        },
+        {
+          "scenario_id": "src.google.adk.a2a.converters.event_converter.convert_a2a_task_to_event#3",
+          "scenario_name": "edge_case_no_content",
+          "passed": true,
+          "duration_ms": null,
+          "failure_reason": null,
+          "stderr_excerpt": null
+        },
+        {
+          "scenario_id": "src.google.adk.a2a.converters.event_converter.convert_a2a_task_to_event#4",
+          "scenario_name": "with_invocation_context",
+          "passed": true,
+          "duration_ms": null,
+          "failure_reason": null,
+          "stderr_excerpt": null
+        },
+        {
+          "scenario_id": "src.google.adk.a2a.converters.event_converter.convert_a2a_task_to_event#5",
+          "scenario_name": "error_none_task",
+          "passed": true,
+          "duration_ms": null,
+          "failure_reason": null,
+          "stderr_excerpt": null
+        },
+        {
+          "scenario_id": "src.google.adk.a2a.converters.event_converter.convert_a2a_task_to_event#6",
+          "scenario_name": "error_conversion_failure",
+          "passed": true,
+          "duration_ms": null,
+          "failure_reason": null,
+          "stderr_excerpt": null
+        }
+      ],
+      "coverage_pct": null,
+      "writer_cost_usd": 0.15653155,
+      "writer_input_tokens": 549347,
+      "writer_output_tokens": 17765,
+      "writer_cache_read_input_tokens": 380971,
+      "writer_cache_creation_input_tokens": 0,
+      "diagnostics": []
+    }
+  ],
+  "files_written": [
+    {
+      "path": "adk/a2a/converters/event_converter/test_convert_a2a_task_to_event.py",
+      "hash": "sha256:158d67202970f17d0a2764c6b77c2cc4fed47a1041ea91d5808d8d25ef8ec0b1",
+      "status": "created"
+    }
+  ],
+  "pr_ready": {
+    "branch_suggestion": "roost/python-tests-20260429-0856",
+    "commit_message": "roost-pytest: add 1 test file(s)",
+    "pr_title": "Auto-generated Python unit tests (1 file(s))",
+    "pr_body_markdown": "## Summary\n- 1 targets with fully green tests\n\n## Generated test files\n- `adk/a2a/converters/event_converter/test_convert_a2a_task_to_event.py`",
+    "changed_files": [
+      "adk/a2a/converters/event_converter/test_convert_a2a_task_to_event.py"
+    ]
+  },
+  "diagnostics": []
+}

adk/a2a/converters/event_converter/test_convert_a2a_task_to_event.py

@@ -0,0 +1,166 @@
+# ROOST_METHOD_HASH=convert_a2a_task_to_event_40cb3ce258
+# ROOST_METHOD_SIG_HASH=convert_a2a_task_to_event_124ed678ea
+
+"""Tests for `src.google.adk.a2a.converters.event_converter.convert_a2a_task_to_event`.
+
+Auto-generated by roost-pytest. Re-generate when the source
+changes; see the run report for generation details.
+"""
+# Source: src/google/adk/a2a/converters/event_converter.py:201-265
+# Scenarios:
+#   - [happy_path] happy_path_artifacts: Verifies that when a task has artifacts, the last artifact's parts are used to create a message for conversion.
+#   - [happy_path] happy_path_status_message: Verifies that when a task has no artifacts but has a status message, that message is used for conversion.
+#   - [happy_path] happy_path_history: Verifies that when a task has no artifacts or status message but has history, the last message in history is used.
+#   - [edge_case] edge_case_no_content: Verifies that a minimal Event is returned when no message content is found in the task.
+#   - [happy_path] with_invocation_context: Verifies that invocation_id and branch are correctly propagated from the InvocationContext.
+#   - [error_path] error_none_task: Verifies that passing None as a2a_task raises a ValueError.
+#   - [error_path] error_conversion_failure: Verifies that a RuntimeError is raised if the underlying message conversion fails.
+
+import pytest
+from unittest.mock import MagicMock, patch
+from google.adk.a2a.converters.event_converter import convert_a2a_task_to_event
+
+@pytest.mark.generated
+@pytest.mark.happy_path
+def test_happy_path_artifacts():
+    """Verifies that when a task has artifacts, the last artifact's parts are used to create a message for conversion."""
+    mock_task = MagicMock()
+    mock_task.artifacts = [MagicMock(parts=['part1', 'part2'])]
+    mock_task.status = None
+    mock_task.history = []
+
+    mock_event = MagicMock()
+
+    with patch('google.adk.a2a.converters.event_converter.Message') as mock_message_cls, \
+         patch('google.adk.a2a.converters.event_converter.Role') as mock_role_cls, \
+         patch('google.adk.a2a.converters.event_converter.convert_a2a_message_to_event') as mock_convert:
+
+        mock_convert.return_value = mock_event
+        mock_message_instance = MagicMock()
+        mock_message_cls.return_value = mock_message_instance
+
+        result = convert_a2a_task_to_event(mock_task)
+
+        mock_message_cls.assert_called_once_with(
+            message_id="", role=mock_role_cls.agent, parts=['part1', 'part2']
+        )
+        mock_convert.assert_called_once()
+        args, kwargs = mock_convert.call_args
+        assert args[0] == mock_message_instance
+        assert result == mock_event
+
+@pytest.mark.generated
+@pytest.mark.happy_path
+def test_happy_path_status_message():
+    """Verifies that when a task has no artifacts but has a status message, that message is used for conversion."""
+    mock_task = MagicMock()
+    mock_task.artifacts = []
+    mock_task.status.message.parts = ['status_part']
+    mock_task.status.message.role = 'agent'
+    mock_task.history = []
+
+    mock_event = MagicMock()
+
+    with patch('google.adk.a2a.converters.event_converter.convert_a2a_message_to_event') as mock_convert:
+        mock_convert.return_value = mock_event
+
+        result = convert_a2a_task_to_event(mock_task)
+
+        mock_convert.assert_called_once()
+        args, kwargs = mock_convert.call_args
+        assert args[0] == mock_task.status.message
+        assert result == mock_event
+
+@pytest.mark.generated
+@pytest.mark.happy_path
+def test_happy_path_history():
+    """Verifies that when a task has no artifacts or status message but has history, the last message in history is used."""
+    mock_task = MagicMock()
+    mock_task.artifacts = []
+    mock_task.status = None
+    mock_task.history = [MagicMock(parts=['hist1']), MagicMock(parts=['hist2'])]
+
+    mock_event = MagicMock()
+
+    with patch('google.adk.a2a.converters.event_converter.convert_a2a_message_to_event') as mock_convert:
+        mock_convert.return_value = mock_event
+
+        result = convert_a2a_task_to_event(mock_task)
+
+        mock_convert.assert_called_once()
+        args, kwargs = mock_convert.call_args
+        assert args[0] == mock_task.history[-1]
+        assert result == mock_event
+
+@pytest.mark.generated
+@pytest.mark.edge_case
+def test_edge_case_no_content():
+    """Verifies that a minimal Event is returned when no message content is found in the task."""
+    mock_task = MagicMock()
+    mock_task.artifacts = []
+    mock_task.status = None
+    mock_task.history = []
+
+    with patch('google.adk.a2a.converters.event_converter.Event') as mock_event_cls, \
+         patch('google.adk.a2a.converters.event_converter.uuid.uuid4') as mock_uuid:
+
+        mock_uuid.return_value = 'generated-id'
+        mock_event_instance = MagicMock()
+        mock_event_cls.return_value = mock_event_instance
+
+        result = convert_a2a_task_to_event(mock_task)
+
+        mock_event_cls.assert_called_once_with(
+            invocation_id='generated-id',
+            author='a2a agent',
+            branch=None
+        )
+        assert result == mock_event_instance
+
+@pytest.mark.generated
+@pytest.mark.happy_path
+def test_with_invocation_context():
+    """Verifies that invocation_id and branch are correctly propagated from the InvocationContext."""
+    mock_task = MagicMock()
+    mock_task.artifacts = []
+    mock_task.status = None
+    mock_task.history = []
+
+    mock_context = MagicMock()
+    mock_context.invocation_id = 'ctx-id'
+    mock_context.branch = 'ctx-branch'
+
+    with patch('google.adk.a2a.converters.event_converter.Event') as mock_event_cls:
+        mock_event_instance = MagicMock()
+        mock_event_cls.return_value = mock_event_instance
+
+        result = convert_a2a_task_to_event(mock_task, invocation_context=mock_context)
+
+        mock_event_cls.assert_called_once_with(
+            invocation_id='ctx-id',
+            author='a2a agent',
+            branch='ctx-branch'
+        )
+        assert result == mock_event_instance
+
+@pytest.mark.generated
+@pytest.mark.error_path
+def test_error_none_task():
+    """Verifies that passing None as a2a_task raises a ValueError."""
+    with pytest.raises(ValueError, match="A2A task cannot be None"):
+        convert_a2a_task_to_event(None)
+
+@pytest.mark.generated
+@pytest.mark.error_path
+def test_error_conversion_failure():
+    """Verifies that a RuntimeError is raised if the underlying message conversion fails."""
+    mock_task = MagicMock()
+    mock_task.artifacts = [MagicMock(parts=['p1'])]
+    mock_task.status = None
+    mock_task.history = []
+
+    with patch('google.adk.a2a.converters.event_converter.Message'), \
+         patch('google.adk.a2a.converters.event_converter.Role'), \
+         patch('google.adk.a2a.converters.event_converter.convert_a2a_message_to_event', side_effect=Exception('inner error')):
+        with pytest.raises(RuntimeError, match="Failed to convert task message: inner error"):
+            convert_a2a_task_to_event(mock_task)

conftest.py

@@ -0,0 +1,27 @@
+"""roost-pytest test-suite configuration.
+
+This file is auto-generated. It registers the custom markers used by
+generated tests so pytest doesn't warn ``PytestUnknownMarkWarning``.
+Add your own fixtures/hooks below the marker block as you would in
+any pytest project.
+"""
+
+from __future__ import annotations
+
+import pytest
+
+
+_GENERATED_MARKERS = {
+    'generated': 'test was auto-generated by roost-pytest',
+    'happy_path': 'exercises the primary success path',
+    'edge_case': 'exercises an edge / boundary condition',
+    'error_path': 'exercises an exception or failure path',
+    'security': 'exercises a security-sensitive behaviour',
+    'property': 'property / invariant test (often parametrised)',
+    'regression': 'guards against a previously fixed bug',
+}
+
+
+def pytest_configure(config: pytest.Config) -> None:
+    for name, description in _GENERATED_MARKERS.items():
+        config.addinivalue_line("markers", f"{name}: {description}")

pyproject.toml

@@ -136,6 +136,7 @@ test = [
   "rouge-score>=0.1.2",
   "tabulate>=0.9.0",
   # go/keep-sorted end
+  "google"
 ]
 
 docs = [