diff --git a/test/towerops/gaiia/inventory_creator_test.exs b/test/towerops/gaiia/inventory_creator_test.exs
new file mode 100644
index 00000000..aad29428
--- /dev/null
+++ b/test/towerops/gaiia/inventory_creator_test.exs
@@ -0,0 +1,242 @@
+defmodule Towerops.Gaiia.InventoryCreatorTest do
+  use Towerops.DataCase, async: false
+
+  import Towerops.DevicesFixtures
+  import Towerops.IntegrationsFixtures
+  import Towerops.SnmpFixtures
+
+  alias Towerops.Gaiia.InventoryCreator
+  alias Towerops.Snmp.Interface
+
+  setup do
+    previous_options = Application.get_env(:gaiia, :req_options)
+    Application.put_env(:gaiia, :req_options, plug: {Req.Test, __MODULE__}, retry: false)
+
+    on_exit(fn ->
+      if previous_options do
+        Application.put_env(:gaiia, :req_options, previous_options)
+      else
+        Application.delete_env(:gaiia, :req_options)
+      end
+    end)
+
+    device = device_fixture()
+
+    %{device: device, organization_id: device.organization_id}
+  end
+
+  describe "build_client/1" do
+    test "reports a missing integration", %{organization_id: organization_id} do
+      assert {:error, :no_gaiia_integration} = InventoryCreator.build_client(organization_id)
+    end
+
+    test "reports missing credentials", %{organization_id: organization_id} do
+      integration_fixture(organization_id, %{provider: "gaiia", credentials: %{}})
+
+      assert {:error, :no_api_key} = InventoryCreator.build_client(organization_id)
+    end
+
+    test "ignores disabled integrations", %{organization_id: organization_id} do
+      integration_fixture(organization_id, %{provider: "gaiia", enabled: false})
+
+      assert {:error, :no_gaiia_integration} = InventoryCreator.build_client(organization_id)
+    end
+
+    test "builds a client with the configured API key", %{organization_id: organization_id} do
+      integration_fixture(organization_id, %{
+        provider: "gaiia",
+        credentials: %{"api_key" => "secret-key"}
+      })
+
+      assert {:ok, client} = InventoryCreator.build_client(organization_id)
+      assert {"x-gaiia-api-key", "secret-key"} in client.headers
+    end
+  end
+
+  describe "list_manufacturers/1" do
+    test "deduplicates, removes missing manufacturers, and sorts by name", context do
+      create_gaiia_integration(context.organization_id)
+
+      stub_success(%{
+        "inventoryModels" => %{
+          "edges" => [
+            %{"node" => %{"manufacturer" => %{"id" => "m2", "name" => "Zeta"}}},
+            %{"node" => %{"manufacturer" => nil}},
+            %{"node" => %{"manufacturer" => %{"id" => "m1", "name" => "Alpha"}}},
+            %{"node" => %{"manufacturer" => %{"id" => "m1", "name" => "Alpha"}}}
+          ]
+        }
+      })
+
+      assert {:ok, manufacturers} = InventoryCreator.list_manufacturers(context.organization_id)
+      assert Enum.map(manufacturers, & &1["id"]) == ["m1", "m2"]
+    end
+
+    test "maps API failures to a stable error", %{organization_id: organization_id} do
+      create_gaiia_integration(organization_id)
+      stub_http_error()
+
+      assert {:error, :gaiia_api_error} = InventoryCreator.list_manufacturers(organization_id)
+    end
+  end
+
+  describe "list_models/2" do
+    test "filters by manufacturer and sorts by model name", %{organization_id: organization_id} do
+      create_gaiia_integration(organization_id)
+
+      stub_success(%{
+        "inventoryModels" => %{
+          "edges" => [
+            model_edge("2", "Zulu", "wanted"),
+            model_edge("3", "Ignored", "other"),
+            model_edge("1", "Alpha", "wanted")
+          ]
+        }
+      })
+
+      assert {:ok, models} = InventoryCreator.list_models(organization_id, "wanted")
+      assert Enum.map(models, & &1["id"]) == ["1", "2"]
+    end
+
+    test "maps API failures to a stable error", %{organization_id: organization_id} do
+      create_gaiia_integration(organization_id)
+      stub_http_error()
+
+      assert {:error, :gaiia_api_error} = InventoryCreator.list_models(organization_id, "manufacturer")
+    end
+  end
+
+  describe "create_inventory_item/4" do
+    test "creates an assigned item using the device MAC address", context do
+      create_gaiia_integration(context.organization_id)
+      add_interface(context.device, "AA:BB:CC:DD:EE:FF")
+
+      Req.Test.stub(__MODULE__, fn conn ->
+        body = read_json_body(conn)
+
+        if String.contains?(body["query"], "inventoryModels") do
+          graphql(conn, %{
+            "inventoryModels" => %{
+              "edges" => [
+                %{
+                  "node" => %{
+                    "fields" => %{
+                      "edges" => [
+                        %{"node" => %{"id" => "serial", "isMainIdentifier" => false}},
+                        %{"node" => %{"id" => "mac-field", "isMainIdentifier" => true}}
+                      ]
+                    }
+                  }
+                }
+              ]
+            }
+          })
+        else
+          input = body["variables"]["input"]
+          assert input["modelId"] == "model-1"
+          assert input["items"] == [%{"fields" => [%{"modelFieldId" => "mac-field", "data" => "AA:BB:CC:DD:EE:FF"}]}]
+          assert input["assignation"] == %{"assigneeId" => "site-1", "assigneeType" => "INVENTORY_LOCATION"}
+          graphql(conn, %{"startAddInventoryItemsJob" => "job-1"})
+        end
+      end)
+
+      assert {:ok, "job-1"} =
+               InventoryCreator.create_inventory_item(
+                 context.organization_id,
+                 context.device,
+                 "model-1",
+                 "site-1"
+               )
+    end
+
+    test "creates an unassigned item when no model fields are returned", context do
+      create_gaiia_integration(context.organization_id)
+
+      Req.Test.stub(__MODULE__, fn conn ->
+        body = read_json_body(conn)
+
+        if String.contains?(body["query"], "inventoryModels") do
+          graphql(conn, %{"inventoryModels" => %{"edges" => []}})
+        else
+          input = body["variables"]["input"]
+          assert input["items"] == [%{"fields" => []}]
+          refute Map.has_key?(input, "assignation")
+          graphql(conn, %{"startAddInventoryItemsJob" => %{"id" => "job-result"}})
+        end
+      end)
+
+      assert {:ok, %{"id" => "job-result"}} =
+               InventoryCreator.create_inventory_item(context.organization_id, context.device, "model-1")
+    end
+
+    test "returns an API error when model fields cannot be fetched", context do
+      create_gaiia_integration(context.organization_id)
+      stub_http_error()
+
+      assert {:error, :gaiia_api_error} =
+               InventoryCreator.create_inventory_item(context.organization_id, context.device, "model-1")
+    end
+
+    test "returns the mutation error", context do
+      create_gaiia_integration(context.organization_id)
+
+      Req.Test.stub(__MODULE__, fn conn ->
+        body = read_json_body(conn)
+
+        if String.contains?(body["query"], "inventoryModels") do
+          graphql(conn, %{
+            "inventoryModels" => %{
+              "edges" => [%{"node" => %{"fields" => %{"edges" => []}}}]
+            }
+          })
+        else
+          conn
+          |> Plug.Conn.put_status(500)
+          |> Req.Test.json(%{"error" => "failed"})
+        end
+      end)
+
+      assert {:error, %Gaiia.Error{kind: :http}} =
+               InventoryCreator.create_inventory_item(context.organization_id, context.device, "model-1")
+    end
+  end
+
+  defp create_gaiia_integration(organization_id) do
+    integration_fixture(organization_id, %{provider: "gaiia"})
+  end
+
+  defp model_edge(id, name, manufacturer_id) do
+    %{"node" => %{"id" => id, "name" => name, "manufacturer" => %{"id" => manufacturer_id}}}
+  end
+
+  defp add_interface(device, mac) do
+    snmp_device = snmp_device_fixture(%{device: device})
+
+    %Interface{}
+    |> Interface.changeset(%{
+      snmp_device_id: snmp_device.id,
+      if_index: 1,
+      if_phys_address: mac
+    })
+    |> Repo.insert!()
+  end
+
+  defp stub_success(data) do
+    Req.Test.stub(__MODULE__, &graphql(&1, data))
+  end
+
+  defp stub_http_error do
+    Req.Test.stub(__MODULE__, fn conn ->
+      conn
+      |> Plug.Conn.put_status(500)
+      |> Req.Test.json(%{"error" => "failed"})
+    end)
+  end
+
+  defp graphql(conn, data), do: Req.Test.json(conn, %{"data" => data})
+
+  defp read_json_body(conn) do
+    {:ok, body, _conn} = Plug.Conn.read_body(conn)
+    Jason.decode!(body)
+  end
+end
diff --git a/test/towerops/gaiia_test.exs b/test/towerops/gaiia_test.exs
index d187d6f9..a05cc565 100644
--- a/test/towerops/gaiia_test.exs
+++ b/test/towerops/gaiia_test.exs
@@ -43,6 +43,24 @@ defmodule Towerops.GaiiaTest do
       assert %{name: "Alice"} = Gaiia.get_account(org.id, "acct-1")
       assert is_nil(Gaiia.get_account(org.id, "nonexistent"))
     end
+
+    test "count_active_subscribers/1 counts accounts with subscriptions", %{org: org} do
+      {:ok, _} =
+        Gaiia.upsert_account(org.id, %{
+          gaiia_id: "active",
+          name: "Active",
+          subscription_count: 2
+        })
+
+      {:ok, _} =
+        Gaiia.upsert_account(org.id, %{
+          gaiia_id: "inactive",
+          name: "Inactive",
+          subscription_count: 0
+        })
+
+      assert Gaiia.count_active_subscribers(org.id) == 1
+    end
   end
 
   describe "network_sites" do
@@ -71,6 +89,20 @@ defmodule Towerops.GaiiaTest do
       {:ok, _} = Gaiia.upsert_network_site(org.id, %{gaiia_id: "site-1", name: "Tower 1"})
       assert length(Gaiia.list_network_sites(org.id)) == 1
     end
+
+    test "gets a network site by Gaiia ID and by mapped Towerops site", %{org: org} do
+      towerops_site = create_site(org.id)
+
+      {:ok, network_site} =
+        Gaiia.upsert_network_site(org.id, %{
+          gaiia_id: "site-lookup",
+          name: "Lookup",
+          site_id: towerops_site.id
+        })
+
+      assert Gaiia.get_network_site(org.id, "site-lookup").id == network_site.id
+      assert Gaiia.get_network_site_for_site(towerops_site.id).id == network_site.id
+    end
   end
 
   describe "inventory_items" do
@@ -96,6 +128,20 @@ defmodule Towerops.GaiiaTest do
       {:ok, _} = Gaiia.upsert_inventory_item(org.id, %{gaiia_id: "item-1", name: "AF5XHD"})
       assert length(Gaiia.list_inventory_items(org.id)) == 1
     end
+
+    test "gets an inventory item by Gaiia ID and mapped device", %{org: org} do
+      device = device_fixture(%{organization_id: org.id})
+
+      {:ok, item} =
+        Gaiia.upsert_inventory_item(org.id, %{
+          gaiia_id: "item-lookup",
+          name: "Lookup",
+          device_id: device.id
+        })
+
+      assert Gaiia.get_inventory_item(org.id, "item-lookup").id == item.id
+      assert Gaiia.get_inventory_item_for_device(device.id).id == item.id
+    end
   end
 
   describe "billing_subscriptions" do
@@ -117,6 +163,29 @@ defmodule Towerops.GaiiaTest do
       {:ok, _} = Gaiia.upsert_billing_subscription(org.id, %{gaiia_id: "sub-2"})
       assert length(Gaiia.list_billing_subscriptions(org.id)) == 2
     end
+
+    test "gets subscriptions and sums active MRR", %{org: org} do
+      {:ok, active} =
+        Gaiia.upsert_billing_subscription(org.id, %{
+          gaiia_id: "active-sub",
+          status: "ACTIVE",
+          mrr_amount: Decimal.new("42.50")
+        })
+
+      {:ok, _inactive} =
+        Gaiia.upsert_billing_subscription(org.id, %{
+          gaiia_id: "inactive-sub",
+          status: "CANCELLED",
+          mrr_amount: Decimal.new("100.00")
+        })
+
+      assert Gaiia.get_billing_subscription(org.id, "active-sub").id == active.id
+      assert Decimal.equal?(Gaiia.sum_active_mrr(org.id), Decimal.new("42.50"))
+    end
+
+    test "sum_active_mrr/1 returns zero when there are no subscriptions", %{org: org} do
+      assert Decimal.equal?(Gaiia.sum_active_mrr(org.id), Decimal.new(0))
+    end
   end
 
   defp create_site(organization_id) do
@@ -172,6 +241,35 @@ defmodule Towerops.GaiiaTest do
     end
   end
 
+  describe "batch summaries" do
+    test "empty device and site lists return empty maps", %{org: org} do
+      assert Gaiia.get_device_subscriber_counts([]) == %{}
+      assert Gaiia.get_site_subscriber_summaries([]) == %{}
+      assert Gaiia.get_site_subscriber_summaries(:invalid) == %{}
+      assert Gaiia.get_device_impact(Ecto.UUID.generate()) == %{accounts: [], mrr: Decimal.new(0), subscriber_count: 0}
+
+      assert Gaiia.list_missing_subscribers(org.id) == []
+    end
+
+    test "returns mapped site summaries in one query", %{org: org} do
+      site = create_site(org.id)
+
+      {:ok, _network_site} =
+        Gaiia.upsert_network_site(org.id, %{
+          gaiia_id: "batch-site",
+          name: "Batch",
+          site_id: site.id,
+          account_count: 7,
+          total_mrr: Decimal.new("80.00")
+        })
+
+      site_id = site.id
+      assert %{^site_id => summary} = Gaiia.get_site_subscriber_summaries([site.id])
+      assert summary.account_count == 7
+      assert Decimal.equal?(summary.total_mrr, Decimal.new("80.00"))
+    end
+  end
+
   describe "get_devices_impact/1" do
     test "deduplicates accounts across devices, preferring higher-confidence matches", %{org: org} do
       site = create_site(org.id)
diff --git a/test/towerops/status_pages/status_page_config_test.exs b/test/towerops/status_pages/status_page_config_test.exs
new file mode 100644
index 00000000..1760d981
--- /dev/null
+++ b/test/towerops/status_pages/status_page_config_test.exs
@@ -0,0 +1,78 @@
+defmodule Towerops.StatusPages.StatusPageConfigTest do
+  use Towerops.DataCase, async: true
+
+  alias Towerops.StatusPages.StatusPageConfig
+
+  describe "changeset/2" do
+    test "accepts valid configuration" do
+      changeset =
+        StatusPageConfig.changeset(%StatusPageConfig{}, %{
+          slug: "network-status",
+          organization_id: Ecto.UUID.generate(),
+          custom_css: ".status { color: green; }"
+        })
+
+      assert changeset.valid?
+    end
+
+    test "requires a slug and organization" do
+      errors =
+        %StatusPageConfig{}
+        |> StatusPageConfig.changeset(%{})
+        |> errors_on()
+
+      assert "can't be blank" in errors.slug
+      assert "can't be blank" in errors.organization_id
+    end
+
+    test "validates slug format and length" do
+      organization_id = Ecto.UUID.generate()
+
+      for slug <- ["UPPERCASE", "-leading", "trailing-", "ab"] do
+        changeset =
+          StatusPageConfig.changeset(%StatusPageConfig{}, %{
+            slug: slug,
+            organization_id: organization_id
+          })
+
+        refute changeset.valid?
+        assert errors_on(changeset).slug != []
+      end
+    end
+
+    test "rejects external resources and HTML in custom CSS" do
+      organization_id = Ecto.UUID.generate()
+
+      unsafe_css = [
+        "body { background: URL(https://example.com/image.png); }",
+        "</style><div>unsafe</div>",
+        "</script>",
+        "<SCRIPT>alert('unsafe')</SCRIPT>"
+      ]
+
+      for custom_css <- unsafe_css do
+        changeset =
+          StatusPageConfig.changeset(%StatusPageConfig{}, %{
+            slug: "network-status",
+            organization_id: organization_id,
+            custom_css: custom_css
+          })
+
+        refute changeset.valid?
+        assert errors_on(changeset).custom_css != []
+      end
+    end
+
+    test "does not revalidate unchanged custom CSS" do
+      config = %StatusPageConfig{custom_css: ".status { color: green; }"}
+
+      changeset =
+        StatusPageConfig.changeset(config, %{
+          slug: "network-status",
+          organization_id: Ecto.UUID.generate()
+        })
+
+      assert changeset.valid?
+    end
+  end
+end
diff --git a/test/towerops_web/live/graph_live/polling_test.exs b/test/towerops_web/live/graph_live/polling_test.exs
new file mode 100644
index 00000000..85b82234
--- /dev/null
+++ b/test/towerops_web/live/graph_live/polling_test.exs
@@ -0,0 +1,310 @@
+defmodule ToweropsWeb.GraphLive.PollingTest do
+  use Towerops.DataCase, async: false
+
+  import Mox
+  import Towerops.DevicesFixtures
+  import Towerops.SnmpFixtures
+
+  alias Towerops.Snmp.Interface
+  alias Towerops.Snmp.Sensor
+  alias Towerops.Snmp.SnmpMock
+  alias ToweropsWeb.GraphLive.Polling
+
+  setup :set_mox_global
+  setup :verify_on_exit!
+
+  describe "build_snmp_client_opts/1" do
+    test "builds client options from the device configuration" do
+      device =
+        device_fixture(%{
+          ip_address: "192.0.2.10",
+          snmp_community: "monitoring",
+          snmp_version: "2c",
+          snmp_port: 1161
+        })
+
+      assert [
+               ip: "192.0.2.10",
+               community: "monitoring",
+               version: "2c",
+               port: 1161,
+               timeout: 3_000
+             ] = Polling.build_snmp_client_opts(device)
+    end
+  end
+
+  describe "poll_regular_sensors/3" do
+    test "returns rounded points and drops failed or non-numeric readings" do
+      snmp_device = snmp_device_fixture()
+      successful = insert_sensor(snmp_device, %{sensor_index: "1", sensor_divisor: 10})
+      _failed = insert_sensor(snmp_device, %{sensor_index: "2", sensor_oid: "1.3.6.1.4.1.999.2"})
+      _non_numeric = insert_sensor(snmp_device, %{sensor_index: "3", sensor_oid: "1.3.6.1.4.1.999.3"})
+
+      expect(SnmpMock, :get, 3, fn _target, oid, _opts ->
+        case oid do
+          "1.3.6.1.4.1.999.1" -> {:ok, {:integer, 215}}
+          "1.3.6.1.4.1.999.2" -> {:error, :timeout}
+          "1.3.6.1.4.1.999.3" -> {:ok, {:octet_string, "unknown"}}
+        end
+      end)
+
+      assigns = %{sensor_id: nil, sensor_type: "temperature", device_id: snmp_device.device_id}
+      assert [point] = Polling.poll_regular_sensors(assigns, client_opts(), 123_456)
+      assert point == %{sensor_id: successful.id, label: "Temperature", value: 21.5, timestamp: 123_456}
+    end
+
+    test "poll_sensors dispatches regular sensor types" do
+      snmp_device = snmp_device_fixture()
+      sensor = insert_sensor(snmp_device, %{sensor_divisor: 2})
+
+      expect(SnmpMock, :get, fn _target, _oid, _opts -> {:ok, {:integer, 15}} end)
+
+      assigns = %{sensor_id: sensor.id, sensor_type: "temperature", device_id: snmp_device.device_id}
+      assert [%{value: 7.5}] = Polling.poll_sensors(assigns, client_opts(), 100, nil)
+    end
+  end
+
+  describe "poll_traffic_with_state/4" do
+    test "returns empty state for missing devices and devices without interfaces" do
+      assert {[], nil} =
+               Polling.poll_traffic_with_state(
+                 %{device_id: Ecto.UUID.generate()},
+                 client_opts(),
+                 100,
+                 nil
+               )
+
+      snmp_device = snmp_device_fixture()
+
+      assert {[], nil} =
+               Polling.poll_traffic_with_state(
+                 %{device_id: snmp_device.device_id},
+                 client_opts(),
+                 100,
+                 nil
+               )
+    end
+
+    test "captures initial counters and calculates aggregate traffic on the next poll" do
+      snmp_device = snmp_device_fixture()
+      interface = insert_interface(snmp_device)
+
+      expect_octet_counters(1_000, 2_000)
+
+      assigns = %{device_id: snmp_device.device_id}
+      assert {[], [current]} = Polling.poll_traffic_with_state(assigns, client_opts(), 100, nil)
+      assert current.interface_id == interface.id
+      assert current.interface_name == "ether1"
+
+      previous = [
+        %{
+          current
+          | if_in_octets: 500,
+            if_out_octets: 1_000,
+            polled_at: DateTime.add(current.polled_at, -10, :second)
+        }
+      ]
+
+      expect_octet_counters(1_500, 3_000)
+
+      assert {[inbound, outbound], [_updated]} =
+               Polling.poll_traffic_with_state(assigns, client_opts(), 200, previous)
+
+      assert inbound.sensor_id == "traffic_in"
+      assert inbound.value > 0
+      assert outbound.sensor_id == "traffic_out"
+      assert outbound.value > inbound.value
+    end
+
+    test "falls back to 32-bit counters when high-capacity counters fail" do
+      snmp_device = snmp_device_fixture()
+      _interface = insert_interface(snmp_device)
+
+      expect(SnmpMock, :get, 3, fn _target, oid, _opts ->
+        cond do
+          String.contains?(oid, ".31.1.1.1.") -> {:error, :no_such_object}
+          String.contains?(oid, ".2.2.1.10.") -> {:ok, {:counter32, 100}}
+          String.contains?(oid, ".2.2.1.16.") -> {:ok, {:counter32, 200}}
+        end
+      end)
+
+      assert {[], [%{if_in_octets: 100, if_out_octets: 200}]} =
+               Polling.poll_traffic_with_state(
+                 %{device_id: snmp_device.device_id},
+                 client_opts(version: "1"),
+                 100,
+                 nil
+               )
+    end
+  end
+
+  describe "request_agent_live_poll/3" do
+    test "publishes requested OIDs and converts valid replies into points" do
+      snmp_device = snmp_device_fixture()
+      sensor = insert_sensor(snmp_device, %{sensor_divisor: 10})
+      agent_token_id = Ecto.UUID.generate()
+      Phoenix.PubSub.subscribe(Towerops.PubSub, "agent:#{agent_token_id}:live_poll")
+
+      task =
+        Task.async(fn ->
+          Polling.request_agent_live_poll(
+            snmp_device.device_id,
+            agent_token_id,
+            %{sensor_id: sensor.id}
+          )
+        end)
+
+      assert_receive {:live_poll_requested, device_id, [oid], reply_topic}
+      assert device_id == snmp_device.device_id
+      assert oid == sensor.sensor_oid
+
+      Phoenix.PubSub.broadcast(
+        Towerops.PubSub,
+        reply_topic,
+        {:live_poll_result, %{sensor.sensor_oid => "215.5"}}
+      )
+
+      assert [%{sensor_id: sensor_id, value: 21.6, timestamp: timestamp}] = Task.await(task)
+      assert sensor_id == sensor.id
+      assert is_integer(timestamp)
+    end
+
+    test "drops missing and unparsable values from agent replies" do
+      snmp_device = snmp_device_fixture()
+      sensor = insert_sensor(snmp_device)
+      agent_token_id = Ecto.UUID.generate()
+      Phoenix.PubSub.subscribe(Towerops.PubSub, "agent:#{agent_token_id}:live_poll")
+
+      task =
+        Task.async(fn ->
+          Polling.request_agent_live_poll(
+            snmp_device.device_id,
+            agent_token_id,
+            %{sensor_id: sensor.id}
+          )
+        end)
+
+      assert_receive {:live_poll_requested, _, _, reply_topic}
+      Phoenix.PubSub.broadcast(Towerops.PubSub, reply_topic, {:live_poll_result, %{sensor.sensor_oid => "bad"}})
+      assert [] == Task.await(task)
+    end
+  end
+
+  describe "get_sensors_for_live_mode/1" do
+    test "returns a specifically selected sensor" do
+      snmp_device = snmp_device_fixture()
+      sensor = insert_sensor(snmp_device, %{sensor_type: "temperature", sensor_index: "2"})
+
+      assert [selected] = Polling.get_sensors_for_live_mode(%{sensor_id: sensor.id})
+      assert selected.id == sensor.id
+    end
+
+    test "returns an empty list for a missing selected sensor" do
+      assert [] == Polling.get_sensors_for_live_mode(%{sensor_id: Ecto.UUID.generate()})
+    end
+
+    test "maps graph types, filters sensors, and sorts by index" do
+      snmp_device = snmp_device_fixture()
+      later = insert_sensor(snmp_device, %{sensor_type: "cpu_temperature", sensor_index: "20"})
+      earlier = insert_sensor(snmp_device, %{sensor_type: "temperature", sensor_index: "10"})
+      _other = insert_sensor(snmp_device, %{sensor_type: "voltage", sensor_index: "1"})
+
+      sensors =
+        Polling.get_sensors_for_live_mode(%{
+          sensor_id: nil,
+          sensor_type: "temperature",
+          device_id: snmp_device.device_id
+        })
+
+      assert Enum.map(sensors, & &1.id) == [earlier.id, later.id]
+    end
+
+    test "returns no sensors for traffic, unknown devices, or unknown sensors" do
+      snmp_device = snmp_device_fixture()
+
+      assert [] ==
+               Polling.get_sensors_for_live_mode(%{
+                 sensor_id: nil,
+                 sensor_type: "traffic",
+                 device_id: snmp_device.device_id
+               })
+
+      assert [] ==
+               Polling.get_sensors_for_live_mode(%{
+                 sensor_id: nil,
+                 sensor_type: "temperature",
+                 device_id: Ecto.UUID.generate()
+               })
+    end
+  end
+
+  describe "update_buffer/4" do
+    test "prepends points into independent sensor buffers" do
+      points = [
+        %{sensor_id: "temperature", timestamp: 100, value: 21.5},
+        %{sensor_id: "voltage", timestamp: 100, value: 48.2}
+      ]
+
+      assert {buffer, 1} = Polling.update_buffer(%{}, 0, points, 3)
+      assert buffer["temperature"] == [%{x: 100, y: 21.5}]
+      assert buffer["voltage"] == [%{x: 100, y: 48.2}]
+    end
+
+    test "trims each sensor buffer and caps the count" do
+      buffer = %{
+        sensor: [
+          %{x: 2, y: 2.0},
+          %{x: 1, y: 1.0},
+          %{x: 0, y: 0.0}
+        ]
+      }
+
+      points = [%{sensor_id: :sensor, timestamp: 3, value: 3.0}]
+
+      assert {%{sensor: values}, 3} = Polling.update_buffer(buffer, 3, points, 3)
+      assert values == [%{x: 3, y: 3.0}, %{x: 2, y: 2.0}, %{x: 1, y: 1.0}]
+    end
+
+    test "increments the polling count even when no points arrive" do
+      assert {%{}, 2} = Polling.update_buffer(%{}, 1, [], 3)
+    end
+  end
+
+  defp insert_sensor(snmp_device, attrs \\ %{}) do
+    defaults = %{
+      snmp_device_id: snmp_device.id,
+      sensor_index: "1",
+      sensor_type: "temperature",
+      sensor_descr: "Temperature",
+      sensor_oid: "1.3.6.1.4.1.999.1",
+      sensor_divisor: 1
+    }
+
+    %Sensor{}
+    |> Sensor.changeset(Map.merge(defaults, attrs))
+    |> Repo.insert!()
+  end
+
+  defp insert_interface(snmp_device) do
+    %Interface{}
+    |> Interface.changeset(%{
+      snmp_device_id: snmp_device.id,
+      if_index: 1,
+      if_name: "ether1"
+    })
+    |> Repo.insert!()
+  end
+
+  defp expect_octet_counters(in_octets, out_octets) do
+    expect(SnmpMock, :get, 2, fn _target, oid, _opts ->
+      if String.contains?(oid, ".1.10."), do: {:ok, {:counter64, out_octets}}, else: {:ok, {:counter64, in_octets}}
+    end)
+  end
+
+  defp client_opts(overrides \\ []) do
+    Keyword.merge(
+      [ip: "192.0.2.10", community: "public", version: "2c", port: 161, timeout: 3_000],
+      overrides
+    )
+  end
+end
diff --git a/test/towerops_web/live/org/gaiia_reconciliation_live_test.exs b/test/towerops_web/live/org/gaiia_reconciliation_live_test.exs
index d7839646..2ec8b841 100644
--- a/test/towerops_web/live/org/gaiia_reconciliation_live_test.exs
+++ b/test/towerops_web/live/org/gaiia_reconciliation_live_test.exs
@@ -2,6 +2,7 @@ defmodule ToweropsWeb.Org.GaiiaReconciliationLiveTest do
   use ToweropsWeb.ConnCase, async: true
 
   import Phoenix.LiveViewTest
+  import Towerops.DevicesFixtures
   import Towerops.OrganizationsFixtures
 
   setup :register_and_log_in_user
@@ -33,4 +34,86 @@ defmodule ToweropsWeb.Org.GaiiaReconciliationLiveTest do
 
     assert html =~ "Gaiia"
   end
+
+  test "refreshes and attempts automatic matching", %{conn: conn, org: org} do
+    {:ok, view, _html} =
+      live(conn, ~p"/orgs/#{org.slug}/settings/integrations/gaiia/reconciliation")
+
+    render_hook(view, "refresh", %{})
+    render_hook(view, "auto_match", %{})
+    assert has_element?(view, "h1")
+  end
+
+  test "opens and cancels the link search for an untracked device", %{conn: conn, org: org} do
+    device = device_fixture(%{organization_id: org.id})
+
+    {:ok, view, _html} =
+      live(
+        conn,
+        ~p"/orgs/#{org.slug}/settings/integrations/gaiia/reconciliation?tab=untracked"
+      )
+
+    render_hook(view, "start_link_search", %{"device_id" => device.id})
+    assert has_element?(view, "#search-gaiia-items-form-#{device.id}")
+
+    render_hook(view, "cancel_link_search", %{})
+    refute has_element?(view, "#search-gaiia-items-form-#{device.id}")
+  end
+
+  test "short searches return no matches", %{conn: conn, org: org} do
+    device = device_fixture(%{organization_id: org.id})
+
+    {:ok, view, _html} =
+      live(
+        conn,
+        ~p"/orgs/#{org.slug}/settings/integrations/gaiia/reconciliation?tab=untracked"
+      )
+
+    render_hook(view, "start_link_search", %{"device_id" => device.id})
+    render_hook(view, "search_gaiia_items", %{"query" => "x"})
+
+    assert has_element?(
+             view,
+             "#search-gaiia-items-form-#{device.id} input[name=query][value=x]"
+           )
+  end
+
+  test "clears manufacturer selection and cancels create state", %{conn: conn, org: org} do
+    {:ok, view, _html} =
+      live(conn, ~p"/orgs/#{org.slug}/settings/integrations/gaiia/reconciliation")
+
+    render_hook(view, "select_manufacturer", %{"manufacturer_id" => ""})
+    render_hook(view, "cancel_create", %{})
+    assert has_element?(view, "h1")
+  end
+
+  test "rejects creation without a model and handles a missing device", %{conn: conn, org: org} do
+    {:ok, view, _html} =
+      live(conn, ~p"/orgs/#{org.slug}/settings/integrations/gaiia/reconciliation")
+
+    render_hook(view, "create_gaiia_item", %{
+      "device_id" => Ecto.UUID.generate(),
+      "model_id" => ""
+    })
+
+    render_hook(view, "create_gaiia_item", %{
+      "device_id" => Ecto.UUID.generate(),
+      "model_id" => "model-1"
+    })
+
+    assert has_element?(view, "h1")
+  end
+
+  test "handles attempts to link or unlink missing inventory items", %{conn: conn, org: org} do
+    {:ok, view, _html} =
+      live(conn, ~p"/orgs/#{org.slug}/settings/integrations/gaiia/reconciliation")
+
+    render_hook(view, "link_to_gaiia", %{
+      "device_id" => Ecto.UUID.generate(),
+      "gaiia_id" => "missing"
+    })
+
+    render_hook(view, "unlink_ghost", %{"gaiia_id" => "missing"})
+    assert has_element?(view, "h1")
+  end
 end