change that tab open change url inplace and get active tab from window id

tests/test_api.py

@@ -154,6 +154,12 @@ class TestNavigation:
         b.focus_url("github.com")
         mock_send.assert_called_once_with("navigate.focus", {"pattern": "github.com"}, profile=None)
 
+    def test_navigate_tab(self, b, mock_send):
+        b.navigate_tab(5, "https://example.com")
+        mock_send.assert_called_once_with(
+            "navigate.to", {"tabId": 5, "url": "https://example.com"}, profile=None
+        )
+
     def test_profile_forwarded(self, b_profile, mock_send):
         b_profile.reload()
         mock_send.assert_called_once_with("navigate.reload", {"tabId": None}, profile="brave")
@@ -244,6 +250,18 @@ class TestTabs:
         b.tabs_active(10)
         mock_send.assert_called_once_with("tabs.active", {"tabId": 10}, profile=None)
 
+    def test_window_active_tab(self, b, mock_send):
+        mock_send.return_value = TAB_DATA
+        tab = b.window_active_tab(1)
+        assert isinstance(tab, Tab)
+        assert tab.id == 10
+        mock_send.assert_called_once_with("tabs.active_in_window", {"windowId": 1}, profile=None)
+
+    def test_window_active_tab_missing_raises(self, b, mock_send):
+        mock_send.return_value = None
+        with pytest.raises(RuntimeError, match="No active tab found for window 1"):
+            b.window_active_tab(1)
+
     def test_tabs_filter(self, b, mock_send):
         mock_send.return_value = [TAB_DATA]
         tabs = b.tabs_filter("example")
@@ -564,7 +582,15 @@ class TestTabModel:
     def test_open(self, tab, mock_send):
         tab.open("https://new.example.com")
         mock_send.assert_called_once_with(
-            "navigate.open", {"url": "https://new.example.com", "background": False}, profile=None
+            "navigate.to", {"tabId": 10, "url": "https://new.example.com"}, profile=None
+        )
+
+    def test_open_background_changes_same_tab(self, tab, mock_send):
+        tab.open("https://new.example.com", background=True)
+        mock_send.assert_called_once_with(
+            "navigate.to",
+            {"tabId": 10, "url": "https://new.example.com"},
+            profile=None,
         )
 
     def test_unbound_raises(self):

tests/test_nav.py

@@ -81,3 +81,24 @@ def test_nav_open_in_background(browser):
         assert not new_tab.get("active"), "background tab should not be active"
     finally:
         browser("tabs.close", {"tabId": new_id})
+
+
+def test_nav_to_updates_existing_tab(browser):
+    result = browser("navigate.open", {"url": "https://example.com", "background": True})
+    tab_id = result["id"]
+
+    try:
+        before_ids = {t["id"] for t in browser("tabs.list")}
+        updated = browser("navigate.to", {"tabId": tab_id, "url": "https://example.org"})
+        assert updated["id"] == tab_id
+
+        tabs = browser("tabs.list")
+        after_ids = {t["id"] for t in tabs}
+        assert after_ids == before_ids
+        tab = next(t for t in tabs if t["id"] == tab_id)
+        assert "example.org" in (tab.get("url") or "")
+    finally:
+        try:
+            browser("tabs.close", {"tabId": tab_id})
+        except Exception:
+            pass

tests/test_tabs.py

@@ -44,6 +44,13 @@ def test_tabs_active_exists(browser):
     assert len(active) >= 1, "Expected at least one active tab"
 
 
+def test_tabs_active_in_window(browser):
+    active = next(t for t in browser("tabs.list") if t.get("active"))
+    result = browser("tabs.active_in_window", {"windowId": active["windowId"]})
+    assert result["id"] == active["id"]
+    assert result["windowId"] == active["windowId"]
+
+
 def test_tabs_html(browser, http_tab):
     html = browser("tabs.html", {"tabId": http_tab["id"]})
     assert isinstance(html, str)