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path: root/servers/gitlab_python/tests/test_server.py
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import pytest
from mcp_server_gitlab_python.server import create_server, GitLabPythonServer
from unittest.mock import MagicMock, patch

def test_create_server():
    server = create_server()
    assert server is not None 

def make_mock_diff(old_path, new_path, diff):
    m = MagicMock()
    m.old_path = old_path
    m.new_path = new_path
    m.diff = diff
    return m

@patch("mcp_server_gitlab_python.server.get_gitlab_settings", return_value=("https://gitlab.com", "dummy-token"))
@patch("gitlab.Gitlab")
def test_get_mr_diff_small_diff(mock_gitlab, mock_settings):
    server = GitLabPythonServer(working_directory="/tmp")
    proj = MagicMock()
    mr = MagicMock()
    mock_gitlab.return_value.projects.get.return_value = proj
    proj.mergerequests.get.return_value = mr
    mr.diffs.list.return_value = [
        make_mock_diff("file1.txt", "file1.txt", "diff content 1"),
        make_mock_diff("file2.py", "file2.py", "diff content 2"),
    ]
    result = server.get_mr_diff("project/path", 1, max_size_kb=100)
    assert "diff" in result
    assert "file1.txt" in result["diff"]
    assert result["temp_file_path"] is None
    assert result["size_kb"] < 100

@patch("mcp_server_gitlab_python.server.get_gitlab_settings", return_value=("https://gitlab.com", "dummy-token"))
@patch("gitlab.Gitlab")
@patch("tempfile.NamedTemporaryFile")
def test_get_mr_diff_large_diff_temp_file(mock_tempfile, mock_gitlab, mock_settings):
    server = GitLabPythonServer(working_directory="/tmp")
    proj = MagicMock()
    mr = MagicMock()
    mock_gitlab.return_value.projects.get.return_value = proj
    proj.mergerequests.get.return_value = mr
    # Create a large diff
    large_diff = "x" * (101 * 1024)
    mock_diff = make_mock_diff("bigfile.txt", "bigfile.txt", large_diff)
    mr.diffs.list.return_value = [mock_diff]
    mock_file = MagicMock()
    mock_file.name = "/tmp/mr_diff_12345.diff"
    mock_tempfile.return_value.__enter__.return_value = mock_file
    result = server.get_mr_diff("project/path", 1, max_size_kb=100)
    assert result["diff_too_large"] is True
    assert result["temp_file_path"] == "/tmp/mr_diff_12345.diff"
    assert result["size_kb"] > 100
    assert "message" in result
    mock_file.write.assert_called_once()

@patch("mcp_server_gitlab_python.server.get_gitlab_settings", return_value=("https://gitlab.com", "dummy-token"))
@patch("gitlab.Gitlab")
def test_get_mr_diff_filter_extensions(mock_gitlab, mock_settings):
    server = GitLabPythonServer(working_directory="/tmp")
    proj = MagicMock()
    mr = MagicMock()
    mock_gitlab.return_value.projects.get.return_value = proj
    proj.mergerequests.get.return_value = mr
    # One file should be filtered out
    mr.diffs.list.return_value = [
        make_mock_diff("file.lock", "file.lock", "should be filtered"),
        make_mock_diff("file.txt", "file.txt", "should be present"),
    ]
    result = server.get_mr_diff("project/path", 1, max_size_kb=100, filter_extensions=[".lock"])
    assert "file.lock" not in result["diff"]
    assert "file.txt" in result["diff"]
    assert "should be present" in result["diff"]
    assert "should be filtered" not in result["diff"]

@patch("mcp_server_gitlab_python.server.get_gitlab_settings", return_value=("https://gitlab.com", "dummy-token"))
@patch("gitlab.Gitlab")
def test_get_mr_diff_error_handling(mock_gitlab, mock_settings):
    server = GitLabPythonServer(working_directory="/tmp")
    mock_gitlab.return_value.projects.get.side_effect = Exception("Not found")
    result = server.get_mr_diff("project/path", 1)
    assert "error" in result
    assert "Not found" in result["error"] 

@patch("mcp_server_gitlab_python.server.get_gitlab_settings", return_value=("https://gitlab.com", "dummy-token"))
@patch("gitlab.Gitlab")
def test_run_ci_pipeline_success_with_branch(mock_gitlab, mock_settings):
    server = GitLabPythonServer(working_directory="/tmp")
    proj = MagicMock()
    pipeline = MagicMock()
    pipeline.id = 123
    pipeline.web_url = "https://gitlab.com/project/-/pipelines/123"
    proj.pipelines.create.return_value = pipeline
    mock_gitlab.return_value.projects.get.return_value = proj
    result = server.run_ci_pipeline(
        project="project/path",
        branch="main",
        variables={"FOO": "bar"},
        web_mode=False,
        working_directory="/tmp"
    )
    assert result["success"] is True
    assert result["pipeline_id"] == 123
    assert result["pipeline_url"] == "https://gitlab.com/project/-/pipelines/123"
    assert result["branch"] == "main"
    assert result["web_mode"] is False
    proj.pipelines.create.assert_called_once()
    args = proj.pipelines.create.call_args[0][0]
    assert args["ref"] == "main"
    assert {"key": "FOO", "value": "bar"} in args["variables"]

@patch("mcp_server_gitlab_python.server.get_gitlab_settings", return_value=("https://gitlab.com", "dummy-token"))
@patch("gitlab.Gitlab")
@patch("git.Repo")
def test_run_ci_pipeline_success_current_branch(mock_repo, mock_gitlab, mock_settings):
    server = GitLabPythonServer(working_directory="/tmp")
    proj = MagicMock()
    pipeline = MagicMock()
    pipeline.id = 456
    pipeline.web_url = "https://gitlab.com/project/-/pipelines/456"
    proj.pipelines.create.return_value = pipeline
    proj.default_branch = "main"
    mock_gitlab.return_value.projects.get.return_value = proj
    # Simulate git branch detection using GitPython
    mock_branch = MagicMock()
    mock_branch.name = "feature-branch"
    mock_repo.return_value.active_branch = mock_branch
    result = server.run_ci_pipeline(
        project="project/path",
        branch=None,
        variables=None,
        web_mode=False,
        working_directory="/tmp"
    )
    assert result["success"] is True
    assert result["pipeline_id"] == 456
    assert result["pipeline_url"] == "https://gitlab.com/project/-/pipelines/456"
    assert result["branch"] == "feature-branch"
    proj.pipelines.create.assert_called_once()

@patch("mcp_server_gitlab_python.server.get_gitlab_settings", return_value=("https://gitlab.com", "dummy-token"))
@patch("gitlab.Gitlab")
@patch("git.Repo")
def test_run_ci_pipeline_fallback_to_default_branch(mock_repo, mock_gitlab, mock_settings):
    server = GitLabPythonServer(working_directory="/tmp")
    proj = MagicMock()
    pipeline = MagicMock()
    pipeline.id = 789
    pipeline.web_url = "https://gitlab.com/project/-/pipelines/789"
    proj.pipelines.create.return_value = pipeline
    proj.default_branch = "main"
    mock_gitlab.return_value.projects.get.return_value = proj
    # Simulate git branch detection failure by raising an exception
    mock_repo.return_value.active_branch = property(lambda self: (_ for _ in ()).throw(Exception("No branch")))
    result = server.run_ci_pipeline(
        project="project/path",
        branch=None,
        variables=None,
        web_mode=False,
        working_directory="/tmp"
    )
    assert result["success"] is True
    assert result["pipeline_id"] == 789
    assert result["pipeline_url"] == "https://gitlab.com/project/-/pipelines/789"
    assert result["branch"] == "main"
    proj.pipelines.create.assert_called_once()

@patch("mcp_server_gitlab_python.server.get_gitlab_settings", return_value=("https://gitlab.com", "dummy-token"))
@patch("gitlab.Gitlab")
def test_run_ci_pipeline_web_mode(mock_gitlab, mock_settings):
    server = GitLabPythonServer(working_directory="/tmp")
    proj = MagicMock()
    pipeline = MagicMock()
    pipeline.id = 321
    pipeline.web_url = "https://gitlab.com/project/-/pipelines/321"
    proj.pipelines.create.return_value = pipeline
    mock_gitlab.return_value.projects.get.return_value = proj
    result = server.run_ci_pipeline(
        project="project/path",
        branch="main",
        variables={"FOO": "bar"},
        web_mode=True,
        working_directory="/tmp"
    )
    assert result["success"] is True
    assert result["web_mode"] is True
    args = proj.pipelines.create.call_args[0][0]
    # Should include CI_PIPELINE_SOURCE=web
    assert {"key": "CI_PIPELINE_SOURCE", "value": "web"} in args["variables"]

@patch("mcp_server_gitlab_python.server.get_gitlab_settings", return_value=("https://gitlab.com", "dummy-token"))
@patch("gitlab.Gitlab")
def test_run_ci_pipeline_error_handling(mock_gitlab, mock_settings):
    server = GitLabPythonServer(working_directory="/tmp")
    mock_gitlab.return_value.projects.get.side_effect = Exception("Not found")
    result = server.run_ci_pipeline(
        project="project/path",
        branch="main",
        variables=None,
        web_mode=False,
        working_directory="/tmp"
    )
    assert "error" in result
    assert "Not found" in result["error"] 

@patch("mcp_server_gitlab_python.server.get_gitlab_settings", return_value=("https://gitlab.com", "dummy-token"))
@patch("gitlab.Gitlab")
def test_find_group(mock_gitlab, mock_settings):
    server = GitLabPythonServer(working_directory="/tmp")
    group1 = MagicMock()
    group1.id = 1
    group1.name = "Test Group"
    group1.full_path = "test-group"
    group1.web_url = "https://gitlab.com/groups/test-group"
    group1.description = "A test group"
    mock_gitlab.return_value.groups.list.return_value = [group1]
    result = server.find_group("test-group")
    assert isinstance(result, list)
    assert result[0]["name"] == "Test Group"
    assert result[0]["full_path"] == "test-group"

@patch("mcp_server_gitlab_python.server.get_gitlab_settings", return_value=("https://gitlab.com", "dummy-token"))
@patch("gitlab.Gitlab")
def test_search_epics_success(mock_gitlab, mock_settings):
    server = GitLabPythonServer(working_directory="/tmp")
    group = MagicMock()
    epic = MagicMock()
    epic.id = 1
    epic.iid = 101
    epic.title = "Epic Title"
    epic.web_url = "https://gitlab.com/groups/test-group/-/epics/101"
    epic.state = "opened"
    epic.created_at = "2024-01-01T00:00:00Z"
    epic.updated_at = "2024-01-02T00:00:00Z"
    epic.author = {"id": 2, "name": "Author"}
    epic.labels = ["label1"]
    epic.description = "Epic description"
    group.epics.list.return_value = [epic]
    mock_gitlab.return_value.groups.get.return_value = group
    result = server.search_epics("test-group", state="opened")
    assert "epics" in result
    assert result["epics"][0]["title"] == "Epic Title"
    assert result["epics"][0]["state"] == "opened"
    assert result["epics"][0]["author"]["name"] == "Author"

@patch("mcp_server_gitlab_python.server.get_gitlab_settings", return_value=("https://gitlab.com", "dummy-token"))
@patch("gitlab.Gitlab")
def test_search_epics_error(mock_gitlab, mock_settings):
    server = GitLabPythonServer(working_directory="/tmp")
    mock_gitlab.return_value.groups.get.side_effect = Exception("Group not found")
    result = server.search_epics("bad-group")
    assert "error" in result
    assert "Group not found" in result["error"]

@patch("mcp_server_gitlab_python.server.get_gitlab_settings", return_value=("https://gitlab.com", "dummy-token"))
@patch("gitlab.Gitlab")
def test_create_epic_success(mock_gitlab, mock_settings):
    server = GitLabPythonServer(working_directory="/tmp")
    group = MagicMock()
    epic = MagicMock()
    epic.web_url = "https://gitlab.com/groups/test-group/-/epics/101"
    group.epics.create.return_value = epic
    mock_gitlab.return_value.groups.get.return_value = group
    result = server.create_epic("test-group", "Epic Title", "Epic description", labels=["label1"])
    assert "url" in result
    assert result["url"] == "https://gitlab.com/groups/test-group/-/epics/101"
    group.epics.create.assert_called_once()
    args = group.epics.create.call_args[0][0]
    assert args["title"] == "Epic Title"
    assert args["description"] == "Epic description"
    assert args["labels"] == ["label1"]

@patch("mcp_server_gitlab_python.server.get_gitlab_settings", return_value=("https://gitlab.com", "dummy-token"))
@patch("gitlab.Gitlab")
def test_create_epic_error(mock_gitlab, mock_settings):
    server = GitLabPythonServer(working_directory="/tmp")
    mock_gitlab.return_value.groups.get.side_effect = Exception("Group not found")
    result = server.create_epic("bad-group", "Epic Title", "Epic description")
    assert "error" in result
    assert "Group not found" in result["error"]