test: expand browser command coverage

- Add mocked Click CLI tests across DOM, cookies, page, storage, perf, navigation, tabs, groups, sessions, and windows commands.
- Cover integration paths for cookies, page info, performance profiles, and web storage commands.
- Extend DOM integration coverage for eval, scrolling, waiting, focus, hover, typing, selection, keyboard, and checkbox interactions.
- Add native host unit coverage for message framing, socket helpers, paging guards, timeouts, and profile alias resolution.

tests/test_storage.py

@@ -0,0 +1,54 @@
+"""Integration tests for storage.get / storage.set — require a live browser."""
+import time
+
+_KEY_PREFIX = "__pytest_storage_"
+
+def test_storage_set_and_get_roundtrip(browser, http_tab):
+    """Set a localStorage key then read it back."""
+    browser("tabs.active", {"tabId": http_tab["id"]})
+    key = _KEY_PREFIX + "roundtrip"
+    value = "hello-storage"
+
+    browser("storage.set", {"key": key, "value": value, "type": "local", "tabId": http_tab["id"]})
+    result = browser("storage.get", {"key": key, "type": "local", "tabId": http_tab["id"]})
+    assert result == value
+
+def test_storage_get_nonexistent_returns_null(browser, http_tab):
+    """Getting a key that was never set returns None."""
+    browser("tabs.active", {"tabId": http_tab["id"]})
+    result = browser("storage.get", {
+        "key": _KEY_PREFIX + "no_such_key_zzz",
+        "type": "local",
+        "tabId": http_tab["id"],
+    })
+    assert result is None
+
+def test_storage_get_all_returns_dict(browser, http_tab):
+    """Calling storage.get without a key dumps all entries as a dict."""
+    browser("tabs.active", {"tabId": http_tab["id"]})
+    # Plant at least one key so the dump isn't trivially empty
+    browser("storage.set", {"key": _KEY_PREFIX + "dump", "value": "present", "type": "local", "tabId": http_tab["id"]})
+
+    result = browser("storage.get", {"key": None, "type": "local", "tabId": http_tab["id"]})
+    assert isinstance(result, dict)
+    assert _KEY_PREFIX + "dump" in result
+
+def test_storage_session_type_roundtrip(browser, http_tab):
+    """sessionStorage works the same way as localStorage."""
+    browser("tabs.active", {"tabId": http_tab["id"]})
+    key = _KEY_PREFIX + "session"
+    value = "ses-val"
+
+    browser("storage.set", {"key": key, "value": value, "type": "session", "tabId": http_tab["id"]})
+    result = browser("storage.get", {"key": key, "type": "session", "tabId": http_tab["id"]})
+    assert result == value
+
+def test_storage_overwrite_updates_value(browser, http_tab):
+    """Setting the same key twice reflects the latest value."""
+    browser("tabs.active", {"tabId": http_tab["id"]})
+    key = _KEY_PREFIX + "overwrite"
+
+    browser("storage.set", {"key": key, "value": "v1", "type": "local", "tabId": http_tab["id"]})
+    browser("storage.set", {"key": key, "value": "v2", "type": "local", "tabId": http_tab["id"]})
+    result = browser("storage.get", {"key": key, "type": "local", "tabId": http_tab["id"]})
+    assert result == "v2"