test(linkedin): add unit tests for the LinkedInChannel doctor branches

tests/test_linkedin_channel.py

@@ -0,0 +1,116 @@
+# -*- coding: utf-8 -*-
+"""Dedicated tests for the ``linkedin`` channel.
+
+LinkedIn routes through mcporter + linkedin-scraper-mcp and its ``check()``
+walks five distinct outcomes: mcporter missing (off, Jina Reader fallback
+hint), unreadable mcporter config (error), a LinkedIn MCP server present in
+config (warn — Doctor refuses to claim usability without a live probe),
+editor imports left unexpanded (warn — credential-read boundary), and
+mcporter installed but LinkedIn unconfigured (off with the exact add
+command). ``inspect_mcporter_config`` and ``shutil.which`` are stubbed so
+every branch runs offline. Follow-up to #331 — extends dedicated channel
+coverage after rss (#360), github (#361), web (#363), reddit (#364),
+xueqiu (#365), v2ex (#366) and youtube (#367).
+"""
+
+from unittest.mock import patch
+
+from agent_reach.channels import linkedin as li
+from agent_reach.channels.linkedin import LinkedInChannel
+from agent_reach.channels.mcporter import (
+    McporterConfigError,
+    McporterConfigInspection,
+)
+
+
+def _inspection(names=(), imports_unchecked=False):
+    return McporterConfigInspection(
+        server_names=frozenset(names),
+        source="~/.mcporter/mcporter.json",
+        imports_unchecked=imports_unchecked,
+    )
+
+
+# --- can_handle ---
+
+def test_can_handle_matches_linkedin_only():
+    ch = LinkedInChannel()
+    for url in [
+        "https://www.linkedin.com/in/someone",
+        "https://LINKEDIN.COM/jobs/view/123",
+    ]:
+        assert ch.can_handle(url) is True, url
+    for url in ["https://example.com", "https://notlinkedin.com.evil.com", ""]:
+        assert ch.can_handle(url) is False, url
+
+
+# --- check(): mcporter missing ---
+
+def test_check_off_without_mcporter_mentions_jina_fallback():
+    ch = LinkedInChannel()
+    with patch.object(li.shutil, "which", return_value=None):
+        status, message = ch.check()
+    assert status == "off"
+    assert "Jina Reader" in message
+    assert "linkedin-scraper-mcp" in message
+
+
+# --- check(): config error ---
+
+def test_check_error_when_config_inspection_fails():
+    ch = LinkedInChannel()
+    ch.active_backend = "stale"
+    with patch.object(li.shutil, "which", return_value="/usr/bin/mcporter"), \
+            patch.object(
+                li, "inspect_mcporter_config",
+                side_effect=McporterConfigError("mcpServers 缺失"),
+            ):
+        status, message = ch.check()
+    assert status == "error"
+    assert "mcpServers 缺失" in message
+    assert ch.active_backend is None
+
+
+# --- check(): server configured (any accepted alias) ---
+
+def test_check_configured_server_warns_not_ok():
+    """Config presence alone must not be sold as usable."""
+    for alias in ("linkedin", "linkedin-scraper", "linkedin-scraper-mcp"):
+        ch = LinkedInChannel()
+        with patch.object(li.shutil, "which", return_value="/usr/bin/mcporter"), \
+                patch.object(
+                    li, "inspect_mcporter_config",
+                    return_value=_inspection(names=[alias, "exa"]),
+                ):
+            status, message = ch.check()
+        assert status == "warn", alias
+        assert "未启动本地" in message
+        assert ch.active_backend is None
+
+
+# --- check(): editor imports unexpanded ---
+
+def test_check_unchecked_imports_warns_instead_of_off():
+    ch = LinkedInChannel()
+    with patch.object(li.shutil, "which", return_value="/usr/bin/mcporter"), \
+            patch.object(
+                li, "inspect_mcporter_config",
+                return_value=_inspection(imports_unchecked=True),
+            ):
+        status, message = ch.check()
+    assert status == "warn"
+    assert "editor" in message
+    assert "未验证" in message
+
+
+# --- check(): installed but unconfigured ---
+
+def test_check_off_with_add_command_when_unconfigured():
+    ch = LinkedInChannel()
+    with patch.object(li.shutil, "which", return_value="/usr/bin/mcporter"), \
+            patch.object(
+                li, "inspect_mcporter_config", return_value=_inspection(),
+            ):
+        status, message = ch.check()
+    assert status == "off"
+    assert "mcporter config add linkedin" in message