AJ
9fa502c500
Records the file mtime at load time; before write_config() fires, re-checks it. If it changed (e.g. `claude mcp add`, a second BCC window, or Claude itself writing ~/.claude.json), StaleDialog prompts with the changed top-level key names and a masked server-section diff. "Merge & save" applies the user's in-memory server edits on top of the current on-disk file (preserving external non-server changes); "Overwrite anyway" proceeds as before. - bcc_core: config_mtime(), external_change_summary(), _server_sections() helper extracted from backup_diff for reuse - bcc.py: StaleDialog, MainWindow._loaded_mtime tracked through load/save - tests: 7 new tests (config_mtime, external_change_summary variants, AC merge test) Closes #4 Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
586 lines
21 KiB
Python
586 lines
21 KiB
Python
"""Pytest port of the original test_core.py script (same 23 behaviours, now
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proper test functions with tmp_path/monkeypatch fixtures)."""
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import json
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import sys
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import pytest
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import bcc_core as c
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# --------------------------------------------------------------------------- #
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# 1. Discovery
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# --------------------------------------------------------------------------- #
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@pytest.fixture
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def fake_base(tmp_path, monkeypatch):
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base = tmp_path / "AppSupport"
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for d in ("Claude", "Claude-Work", "NotClaude"):
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(base / d).mkdir(parents=True)
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(base / "Claude" / c.CONFIG_FILENAME).write_text("{}")
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monkeypatch.setattr(c, "app_support_base", lambda: base)
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return base
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def test_discovers_claude_dirs_not_others(fake_base):
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labels = sorted(p.label for p in c.discover_profiles())
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assert "Claude" in labels
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assert "Claude-Work" in labels
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assert "NotClaude" not in labels
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def test_flags_missing_config_file(fake_base):
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profs = c.discover_profiles()
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assert any(p.label == "Claude-Work" and not p.config_exists for p in profs)
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@pytest.fixture
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def fake_home(tmp_path, monkeypatch, fake_base):
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home = tmp_path / "home"
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(home / ".claude").mkdir(parents=True)
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monkeypatch.setattr(c.Path, "home", lambda: home)
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return home
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def test_claude_code_uses_dot_claude_json(fake_home):
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(fake_home / ".claude.json").write_text('{"mcpServers": {"x": {"command": "npx"}}}')
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profs = c.discover_profiles()
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cc = [p for p in profs if p.label == "Claude Code"]
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assert len(cc) == 1
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assert cc[0].path == fake_home / ".claude.json"
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assert cc[0].config_exists
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def test_legacy_settings_json_surfaced_only_with_servers(fake_home):
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# settings.json without mcpServers -> not listed
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(fake_home / ".claude" / "settings.json").write_text('{"permissions": {}}')
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assert not any("legacy" in p.label for p in c.discover_profiles())
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# settings.json WITH parked mcpServers -> listed so the user can migrate
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(fake_home / ".claude" / "settings.json").write_text(
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'{"mcpServers": {"old": {"command": "npx"}}}'
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)
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assert any("legacy" in p.label for p in c.discover_profiles())
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# --------------------------------------------------------------------------- #
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# 2. Write pipeline: preserves other keys + order, only touches mcpServers
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# --------------------------------------------------------------------------- #
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@pytest.fixture
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def written_config(tmp_path):
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cfgpath = tmp_path / "real.json"
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original = {
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"globalShortcut": "Cmd+Shift+Space",
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"mcpServers": {"old": {"command": "node", "args": ["x.js"]}},
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"someOtherTool": {"keep": True},
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}
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cfgpath.write_text(json.dumps(original, indent=2))
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cfg = c.load_config(cfgpath)
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servers = c.extract_servers(cfg)
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servers.append(c.ServerEntry("brave", {"command": "npx", "args": ["-y", "@x/brave"]}, True))
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servers[0].enabled = False
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c.apply_servers(cfg, servers)
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c.write_config(cfgpath, cfg)
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return cfgpath, json.loads(cfgpath.read_text())
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def test_preserves_unrelated_keys(written_config):
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_, written = written_config
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assert written.get("globalShortcut") == "Cmd+Shift+Space"
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assert written.get("someOtherTool") == {"keep": True}
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def test_disabled_server_parked(written_config):
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_, written = written_config
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assert "old" in written.get(c.DISABLED_KEY, {})
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assert "old" not in written.get("mcpServers", {})
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def test_enabled_server_active(written_config):
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_, written = written_config
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assert "brave" in written.get("mcpServers", {})
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def test_key_order_kept(written_config):
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_, written = written_config
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keys = list(written.keys())
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assert keys.index("globalShortcut") < keys.index("mcpServers")
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def test_backup_created(written_config):
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cfgpath, _ = written_config
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bdir = cfgpath.parent / c.BACKUP_DIRNAME
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assert bdir.is_dir()
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assert any(bdir.iterdir())
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# --------------------------------------------------------------------------- #
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# 3. Paste parser — all accepted shapes
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# --------------------------------------------------------------------------- #
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def test_parse_full_config_shape():
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full = '{"mcpServers": {"a": {"command": "node", "args": ["a.js"]}}}'
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assert list(c.parse_pasted_json(full)) == ["a"]
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def test_parse_inner_block_shape():
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inner = '{"b": {"command": "uvx", "args": ["mcp-server-git"]}}'
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assert list(c.parse_pasted_json(inner)) == ["b"]
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def test_parse_bare_server_suggests_name():
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bare = '{"command": "npx", "args": ["-y", "@modelcontextprotocol/server-filesystem", "/tmp"]}'
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assert "filesystem" in c.parse_pasted_json(bare)
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def test_parse_remote_suggests_host_name():
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remote = '{"url": "https://mcp.asana.com/sse"}'
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assert "mcp" in c.parse_pasted_json(remote)
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def test_rejects_junk():
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with pytest.raises(ValueError):
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c.parse_pasted_json('{"junk": 5}')
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# --------------------------------------------------------------------------- #
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# 4. Validation
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# --------------------------------------------------------------------------- #
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@pytest.fixture
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def problems():
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bad = [
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c.ServerEntry("", {"command": "x"}, True),
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c.ServerEntry("dup", {"command": "x"}, True),
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c.ServerEntry("dup", {"command": "x"}, True),
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c.ServerEntry("r", {"url": ""}, True),
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c.ServerEntry("nocmd", {"command": ""}, True),
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]
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return c.validate_servers(bad)
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def test_validation_catches_empty_name(problems):
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assert any("empty name" in p for p in problems)
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def test_validation_catches_duplicate(problems):
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assert any("Duplicate" in p for p in problems)
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def test_validation_catches_missing_url(problems):
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assert any("no URL" in p for p in problems)
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def test_validation_catches_missing_command(problems):
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assert any("no command" in p for p in problems)
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def test_valid_set_passes_clean():
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assert c.validate_servers([c.ServerEntry("good", {"command": "node"}, True)]) == []
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# --------------------------------------------------------------------------- #
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# 5. Secrets: detection + redaction
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# --------------------------------------------------------------------------- #
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def test_is_secret_key_positives():
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for k in (
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"BRAVE_API_KEY",
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"BEARER_TOKEN",
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"password",
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"GH_TOKEN",
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"Authorization",
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"client_secret",
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"PRIVATE_KEY",
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"aws_access_key_id",
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):
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assert c.is_secret_key(k), k
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def test_is_secret_key_negatives():
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for k in ("JOOMLA_BASE_URL", "PORT", "HOME", "PATH", "debug", "TIMEOUT"):
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assert not c.is_secret_key(k), k
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def test_redact_args_flag_value():
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assert c.redact_args(["--token", "abc123", "run"]) == ["--token", c.MASK, "run"]
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def test_redact_args_inline_flag():
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assert c.redact_args(["--api-key=abc123"]) == [f"--api-key={c.MASK}"]
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def test_redact_args_known_prefix():
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assert c.redact_args(["ghp_abcdef123456"]) == [c.MASK]
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def test_redact_args_leaves_normal_args():
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args = ["--directory", "/path/to/server", "run", "main.py", "-y"]
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assert c.redact_args(args) == args
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def test_diagnostics_redacts_token_args():
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txt = c.diagnostics_text("t", {"command": "npx", "args": ["--token", "s3cret-value"]})
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assert "s3cret-value" not in txt
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assert c.MASK in txt
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# --------------------------------------------------------------------------- #
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# 6. Dependency / PATH checking
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# --------------------------------------------------------------------------- #
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def test_dep_check_finds_python3():
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assert c.check_dependency({"command": "python3"})["status"] == "ok"
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def test_dep_check_flags_missing():
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assert c.check_dependency({"command": "definitely-not-real-binary-xyz"})["status"] == "missing"
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def test_dep_check_marks_remote():
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assert c.check_dependency({"url": "https://example.com/mcp"})["status"] == "remote"
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def test_dep_check_sees_through_shell_wrapper():
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r = c.check_dependency({"command": "cmd", "args": ["/c", "definitely-not-real-xyz", "foo"]})
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assert "definitely-not-real-xyz" in r["label"]
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# --------------------------------------------------------------------------- #
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# 7. Spawn test
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# --------------------------------------------------------------------------- #
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def test_spawn_test_ok_still_running():
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# A process that sleeps longer than the timeout → "ok" (server started)
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r = c.spawn_test(
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{"command": sys.executable, "args": ["-c", "import time; time.sleep(60)"]}, timeout=0.3
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)
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assert r["outcome"] == "ok"
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assert r["returncode"] is None
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def test_spawn_test_crashed():
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# A process that exits with a non-zero code immediately
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r = c.spawn_test(
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{"command": sys.executable, "args": ["-c", "raise SystemExit(1)"]}, timeout=0.3
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)
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assert r["outcome"] == "crashed"
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assert r["returncode"] == 1
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def test_spawn_test_exited_cleanly():
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# A process that exits 0 before timeout (unusual for a server)
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r = c.spawn_test({"command": sys.executable, "args": ["-c", "pass"]}, timeout=0.5)
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assert r["outcome"] == "exited"
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assert r["returncode"] == 0
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def test_spawn_test_not_found():
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r = c.spawn_test({"command": "definitely-not-a-real-binary-xyz"}, timeout=0.3)
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assert r["outcome"] == "not_found"
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def test_spawn_test_remote_not_applicable():
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r = c.spawn_test({"url": "https://example.com/mcp"}, timeout=0.3)
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assert r["outcome"] == "not_applicable"
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def test_spawn_test_stderr_captured():
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# A process that writes to stderr before crashing
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r = c.spawn_test(
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{
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"command": sys.executable,
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"args": ["-c", "import sys; sys.stderr.write('test-err\\n'); sys.exit(2)"],
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},
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timeout=0.5,
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)
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assert r["outcome"] == "crashed"
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assert "test-err" in r["stderr"]
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def test_spawn_test_stdin_not_closed():
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# A process that blocks reading stdin should stay alive (outcome=ok), not exit 0.
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# This guards against the regression where stdin=DEVNULL sends EOF and a server
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# that reads stdin exits cleanly, being misclassified as "exited" instead of "ok".
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r = c.spawn_test(
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{"command": sys.executable, "args": ["-c", "import sys; sys.stdin.read()"]},
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timeout=0.3,
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)
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assert r["outcome"] == "ok", f"expected ok (blocking on stdin), got {r['outcome']}"
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def test_spawn_test_large_stderr_does_not_deadlock():
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# A process that writes >4 KB (pipe buffer territory) to stderr then exits non-zero.
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# Without EOF-draining, the subprocess blocks on a full pipe and is wrongly
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# classified as "ok" (still running) instead of "crashed".
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script = "import sys; sys.stderr.write('x' * 65536); sys.stderr.flush(); sys.exit(3)"
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r = c.spawn_test(
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{"command": sys.executable, "args": ["-c", script]},
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timeout=2.0,
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)
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assert r["outcome"] == "crashed", f"expected crashed, got {r['outcome']}"
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assert r["returncode"] == 3
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# stderr is capped, not the full 64 KB
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assert len(r["stderr"]) <= c._STDERR_CAP
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# --------------------------------------------------------------------------- #
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# 8. Backup restore
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# --------------------------------------------------------------------------- #
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@pytest.fixture
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def config_with_backup(tmp_path):
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"""A config file with two backups already present."""
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cfgpath = tmp_path / "claude_desktop_config.json"
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original = {
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"globalShortcut": "Cmd+Shift+Space",
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"mcpServers": {"server-v1": {"command": "node", "args": ["v1.js"]}},
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}
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cfgpath.write_text(json.dumps(original, indent=2))
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# Create first backup (v1 state) by writing a new version
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cfg = c.load_config(cfgpath)
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servers = c.extract_servers(cfg)
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servers[0] = c.ServerEntry("server-v2", {"command": "node", "args": ["v2.js"]}, True)
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c.apply_servers(cfg, servers)
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c.write_config(cfgpath, cfg)
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return cfgpath
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def test_list_backups_returns_newest_first(config_with_backup):
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backups = c.list_backups(config_with_backup)
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assert len(backups) >= 1
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# Sorted newest-first means descending lexicographic order on timestamps
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names = [b.name for b in backups]
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assert names == sorted(names, reverse=True)
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def test_list_backups_empty_when_no_bdir(tmp_path):
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cfgpath = tmp_path / "claude_desktop_config.json"
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cfgpath.write_text("{}")
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assert c.list_backups(cfgpath) == []
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def test_backup_label_parses_timestamp(config_with_backup):
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backup = c.list_backups(config_with_backup)[0]
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label = c.backup_label(backup)
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# label should look like "2026-07-02 00:41:24" (date + time, separated by two spaces)
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assert "-" in label and ":" in label
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assert len(label) == 20 # "YYYY-MM-DD HH:MM:SS" = 10 + 2 + 8
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def test_backup_diff_shows_server_change(config_with_backup):
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backup = c.list_backups(config_with_backup)[0]
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diff = c.backup_diff(config_with_backup, backup)
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# The diff should show the transition back to v1 servers
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assert "server-v1" in diff or "server-v2" in diff
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def test_backup_diff_no_diff_when_identical(tmp_path):
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cfgpath = tmp_path / "cfg.json"
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content = {"mcpServers": {"s": {"command": "node"}}}
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cfgpath.write_text(json.dumps(content, indent=2))
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bdir = cfgpath.parent / c.BACKUP_DIRNAME
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bdir.mkdir(exist_ok=True)
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import time as _time
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stamp = _time.strftime("%Y%m%d-%H%M%S")
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backup_path = bdir / f"cfg.{stamp}.json"
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backup_path.write_text(json.dumps(content, indent=2))
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diff = c.backup_diff(cfgpath, backup_path)
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assert "(no differences" in diff
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def test_restore_backup_replaces_servers(config_with_backup):
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# Get the v1 backup (only backup we have)
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backups = c.list_backups(config_with_backup)
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assert len(backups) >= 1
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v1_backup = backups[0]
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# Current file has server-v2; restore should bring back server-v1
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c.restore_backup(config_with_backup, v1_backup)
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restored = json.loads(config_with_backup.read_text())
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assert "server-v1" in restored.get("mcpServers", {})
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assert "server-v2" not in restored.get("mcpServers", {})
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def test_restore_preserves_non_server_keys(config_with_backup):
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backups = c.list_backups(config_with_backup)
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c.restore_backup(config_with_backup, backups[0])
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restored = json.loads(config_with_backup.read_text())
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# Non-server key must survive
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assert restored.get("globalShortcut") == "Cmd+Shift+Space"
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def test_restore_creates_pre_restore_backup(config_with_backup):
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before_count = len(c.list_backups(config_with_backup))
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backups = c.list_backups(config_with_backup)
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c.restore_backup(config_with_backup, backups[0])
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after_count = len(c.list_backups(config_with_backup))
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# restore_backup goes through write_config which makes a backup first
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assert after_count == before_count + 1
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def test_restore_with_current_cfg_passed(config_with_backup):
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# When current_cfg is passed in (the GUI's in-memory config), it should be
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# used instead of re-reading from disk.
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backups = c.list_backups(config_with_backup)
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# Simulate the GUI passing a repaired in-memory version
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in_memory_cfg = {
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"globalShortcut": "Cmd+Shift+Space",
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"extraKey": "preserved",
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"mcpServers": {"server-v2": {"command": "node", "args": ["v2.js"]}},
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}
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c.restore_backup(config_with_backup, backups[0], current_cfg=in_memory_cfg)
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restored = json.loads(config_with_backup.read_text())
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assert restored.get("extraKey") == "preserved"
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assert "server-v1" in restored.get("mcpServers", {})
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def test_backup_diff_masks_secrets(tmp_path):
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cfgpath = tmp_path / "cfg.json"
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current = {
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"mcpServers": {
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"s": {
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"command": "node",
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"args": ["--token", "super-secret"],
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"env": {"API_KEY": "my-api-key-value"},
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}
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}
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}
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cfgpath.write_text(json.dumps(current, indent=2))
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bdir = cfgpath.parent / c.BACKUP_DIRNAME
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bdir.mkdir()
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import time as _t
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bp = bdir / f"cfg.{_t.strftime('%Y%m%d-%H%M%S')}.json"
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bp.write_text(
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json.dumps(
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|
{
|
|
"mcpServers": {
|
|
"s2": {
|
|
"command": "python",
|
|
"args": ["--api-key", "another-secret"],
|
|
"env": {"SECRET_KEY": "backup-secret-value"},
|
|
}
|
|
}
|
|
},
|
|
indent=2,
|
|
)
|
|
)
|
|
diff = c.backup_diff(cfgpath, bp)
|
|
# Raw secret values must not appear in the diff
|
|
assert "super-secret" not in diff
|
|
assert "my-api-key-value" not in diff
|
|
assert "another-secret" not in diff
|
|
assert "backup-secret-value" not in diff
|
|
# The mask placeholder must appear (secrets were present in both sides)
|
|
assert c.MASK in diff
|
|
|
|
|
|
def test_restore_backup_restores_disabled_servers(tmp_path):
|
|
cfgpath = tmp_path / "cfg.json"
|
|
original = {
|
|
"mcpServers": {"active": {"command": "node"}},
|
|
c.DISABLED_KEY: {"parked": {"command": "python"}},
|
|
}
|
|
cfgpath.write_text(json.dumps(original, indent=2))
|
|
|
|
# Overwrite: add new server, drop the disabled one
|
|
cfg = c.load_config(cfgpath)
|
|
servers = c.extract_servers(cfg)
|
|
servers = [s for s in servers if s.name != "parked"]
|
|
servers.append(c.ServerEntry("newcomer", {"command": "uvx"}, True))
|
|
c.apply_servers(cfg, servers)
|
|
c.write_config(cfgpath, cfg)
|
|
|
|
# Restore from the v1 backup
|
|
backups = c.list_backups(cfgpath)
|
|
c.restore_backup(cfgpath, backups[0])
|
|
restored = json.loads(cfgpath.read_text())
|
|
|
|
assert "parked" in restored.get(c.DISABLED_KEY, {})
|
|
assert "active" in restored.get("mcpServers", {})
|
|
assert "newcomer" not in restored.get("mcpServers", {})
|
|
|
|
|
|
# --------------------------------------------------------------------------- #
|
|
# 9 — Stale-file protection
|
|
# --------------------------------------------------------------------------- #
|
|
|
|
|
|
def test_config_mtime_returns_float_for_existing_file(tmp_path):
|
|
f = tmp_path / "cfg.json"
|
|
f.write_text("{}")
|
|
assert isinstance(c.config_mtime(f), float)
|
|
|
|
|
|
def test_config_mtime_returns_none_for_missing_file(tmp_path):
|
|
assert c.config_mtime(tmp_path / "nonexistent.json") is None
|
|
|
|
|
|
def test_external_change_summary_detects_non_server_key_change(tmp_path):
|
|
cfgpath = tmp_path / "cfg.json"
|
|
original = {"numStartups": 1, "mcpServers": {"s": {"command": "node"}}}
|
|
cfgpath.write_text(json.dumps({"numStartups": 2, "mcpServers": {"s": {"command": "node"}}}))
|
|
changed_keys, server_diff = c.external_change_summary(original, cfgpath)
|
|
assert "numStartups" in changed_keys
|
|
assert server_diff == "" # server sections unchanged
|
|
|
|
|
|
def test_external_change_summary_detects_server_section_change(tmp_path):
|
|
cfgpath = tmp_path / "cfg.json"
|
|
original = {"mcpServers": {"s1": {"command": "node"}}}
|
|
cfgpath.write_text(json.dumps({"mcpServers": {"s2": {"command": "python"}}}))
|
|
changed_keys, server_diff = c.external_change_summary(original, cfgpath)
|
|
assert "mcpServers" in changed_keys
|
|
assert "s1" in server_diff or "s2" in server_diff
|
|
|
|
|
|
def test_external_change_summary_server_diff_masks_secrets(tmp_path):
|
|
cfgpath = tmp_path / "cfg.json"
|
|
original = {"mcpServers": {"a": {"command": "node", "env": {"SECRET_KEY": "s3cr3t"}}}}
|
|
# command changes (visible in diff) AND secret value changes (both sides masked →
|
|
# MASK appears in context lines, raw secret never appears)
|
|
cfgpath.write_text(
|
|
json.dumps(
|
|
{"mcpServers": {"a": {"command": "python", "env": {"SECRET_KEY": "n3w_s3cr3t"}}}}
|
|
)
|
|
)
|
|
changed_keys, server_diff = c.external_change_summary(original, cfgpath)
|
|
assert "mcpServers" in changed_keys
|
|
assert "s3cr3t" not in server_diff
|
|
assert "n3w_s3cr3t" not in server_diff
|
|
assert c.MASK in server_diff # appears in context for the masked env value
|
|
|
|
|
|
def test_external_change_summary_empty_when_unchanged(tmp_path):
|
|
cfgpath = tmp_path / "cfg.json"
|
|
cfg = {"mcpServers": {"s": {"command": "node"}}}
|
|
cfgpath.write_text(json.dumps(cfg))
|
|
changed_keys, server_diff = c.external_change_summary(cfg, cfgpath)
|
|
assert changed_keys == []
|
|
assert server_diff == ""
|
|
|
|
|
|
def test_merge_and_reapply_preserves_both_edits(tmp_path):
|
|
"""AC test: external non-server change + in-memory server edit both survive merge."""
|
|
cfgpath = tmp_path / "cfg.json"
|
|
original = {"numStartups": 1, "mcpServers": {"s1": {"command": "node"}}}
|
|
cfgpath.write_text(json.dumps(original, indent=2))
|
|
|
|
user_servers = [c.ServerEntry("s2", {"command": "python"}, True)]
|
|
|
|
# External process bumps numStartups without touching servers
|
|
disk_changed = dict(original)
|
|
disk_changed["numStartups"] = 42
|
|
cfgpath.write_text(json.dumps(disk_changed, indent=2))
|
|
|
|
# Merge: load fresh from disk, apply user's server edits, write back
|
|
fresh = c.load_config(cfgpath)
|
|
c.apply_servers(fresh, user_servers)
|
|
c.write_config(cfgpath, fresh)
|
|
|
|
result = json.loads(cfgpath.read_text())
|
|
assert result["numStartups"] == 42 # external change preserved
|
|
assert "s2" in result["mcpServers"] # user's server edit preserved
|
|
assert "s1" not in result["mcpServers"] # old server replaced
|