diff --git a/tests/components/brother/__init__.py b/tests/components/brother/__init__.py
index 7b4e937a9f87..ba68fa829735 100644
--- a/tests/components/brother/__init__.py
+++ b/tests/components/brother/__init__.py
@@ -5,9 +5,7 @@ from homeassistant.core import HomeAssistant
 from tests.common import MockConfigEntry
 
 
-async def init_integration(
-    hass: HomeAssistant, entry: MockConfigEntry
-) -> MockConfigEntry:
+async def init_integration(hass: HomeAssistant, entry: MockConfigEntry) -> None:
     """Set up the Brother integration in Home Assistant."""
     entry.add_to_hass(hass)
 
diff --git a/tests/components/brother/conftest.py b/tests/components/brother/conftest.py
index 09860f5a0db1..9fd226df8a7b 100644
--- a/tests/components/brother/conftest.py
+++ b/tests/components/brother/conftest.py
@@ -90,15 +90,6 @@ def mock_setup_entry() -> Generator[AsyncMock]:
         yield mock_setup_entry
 
 
-@pytest.fixture
-def mock_unload_entry() -> Generator[AsyncMock]:
-    """Override async_unload_entry."""
-    with patch(
-        "homeassistant.components.brother.async_unload_entry", return_value=True
-    ) as mock_unload_entry:
-        yield mock_unload_entry
-
-
 @pytest.fixture
 def mock_brother() -> Generator[AsyncMock]:
     """Mock the Brother class."""
diff --git a/tests/components/brother/test_config_flow.py b/tests/components/brother/test_config_flow.py
index 68ea3b57af19..41d2743263a4 100644
--- a/tests/components/brother/test_config_flow.py
+++ b/tests/components/brother/test_config_flow.py
@@ -1,7 +1,7 @@
 """Define tests for the Brother Printer config flow."""
 
 from ipaddress import ip_address
-from unittest.mock import AsyncMock, patch
+from unittest.mock import AsyncMock
 
 from brother import SnmpError, UnsupportedModelError
 import pytest
@@ -27,17 +27,7 @@ CONFIG = {
     SECTION_ADVANCED_SETTINGS: {CONF_PORT: 161, CONF_COMMUNITY: "public"},
 }
 
-pytestmark = pytest.mark.usefixtures("mock_setup_entry", "mock_unload_entry")
-
-
-async def test_show_form(hass: HomeAssistant) -> None:
-    """Test that the form is served with no input."""
-    result = await hass.config_entries.flow.async_init(
-        DOMAIN, context={"source": SOURCE_USER}
-    )
-
-    assert result["type"] is FlowResultType.FORM
-    assert result["step_id"] == "user"
+pytestmark = pytest.mark.usefixtures("mock_setup_entry")
 
 
 @pytest.mark.parametrize("host", ["example.local", "127.0.0.1", "2001:db8::1428:57ab"])
@@ -49,9 +39,15 @@ async def test_create_entry(
     config[CONF_HOST] = host
 
     result = await hass.config_entries.flow.async_init(
-        DOMAIN,
-        context={"source": SOURCE_USER},
-        data=config,
+        DOMAIN, context={"source": SOURCE_USER}
+    )
+
+    assert result["type"] is FlowResultType.FORM
+    assert result["step_id"] == "user"
+
+    result = await hass.config_entries.flow.async_configure(
+        flow_id=result["flow_id"],
+        user_input=config,
     )
 
     assert result["type"] is FlowResultType.CREATE_ENTRY
@@ -60,6 +56,7 @@ async def test_create_entry(
     assert result["data"][CONF_TYPE] == "laser"
     assert result["data"][SECTION_ADVANCED_SETTINGS][CONF_PORT] == 161
     assert result["data"][SECTION_ADVANCED_SETTINGS][CONF_COMMUNITY] == "public"
+    assert result["result"].unique_id == "0123456789"
 
 
 async def test_invalid_hostname(
@@ -97,6 +94,7 @@ async def test_invalid_hostname(
     assert result["data"][CONF_TYPE] == "laser"
     assert result["data"][SECTION_ADVANCED_SETTINGS][CONF_PORT] == 161
     assert result["data"][SECTION_ADVANCED_SETTINGS][CONF_COMMUNITY] == "public"
+    assert result["result"].unique_id == "0123456789"
 
 
 @pytest.mark.parametrize(
@@ -142,6 +140,7 @@ async def test_errors(
     assert result["data"][CONF_TYPE] == "laser"
     assert result["data"][SECTION_ADVANCED_SETTINGS][CONF_PORT] == 161
     assert result["data"][SECTION_ADVANCED_SETTINGS][CONF_COMMUNITY] == "public"
+    assert result["result"].unique_id == "0123456789"
 
 
 async def test_unsupported_model_error(
@@ -250,32 +249,31 @@ async def test_zeroconf_device_exists_abort(
     assert mock_config_entry.data[CONF_HOST] == "127.0.0.1"
 
 
-async def test_zeroconf_no_probe_existing_device(hass: HomeAssistant) -> None:
+async def test_zeroconf_no_probe_existing_device(
+    hass: HomeAssistant, mock_brother_client: AsyncMock
+) -> None:
     """Test we do not probe the device is the host is already configured."""
     entry = MockConfigEntry(domain=DOMAIN, unique_id="0123456789", data=CONFIG)
     entry.add_to_hass(hass)
-    with (
-        patch("homeassistant.components.brother.Brother.initialize"),
-        patch("homeassistant.components.brother.Brother._get_data") as mock_get_data,
-    ):
-        result = await hass.config_entries.flow.async_init(
-            DOMAIN,
-            context={"source": SOURCE_ZEROCONF},
-            data=ZeroconfServiceInfo(
-                ip_address=ip_address("127.0.0.1"),
-                ip_addresses=[ip_address("127.0.0.1")],
-                hostname="example.local.",
-                name="Brother Printer",
-                port=None,
-                properties={},
-                type="mock_type",
-            ),
-        )
-        await hass.async_block_till_done()
+
+    result = await hass.config_entries.flow.async_init(
+        DOMAIN,
+        context={"source": SOURCE_ZEROCONF},
+        data=ZeroconfServiceInfo(
+            ip_address=ip_address("127.0.0.1"),
+            ip_addresses=[ip_address("127.0.0.1")],
+            hostname="example.local.",
+            name="Brother Printer",
+            port=None,
+            properties={},
+            type="mock_type",
+        ),
+    )
+    await hass.async_block_till_done()
 
     assert result["type"] is FlowResultType.ABORT
     assert result["reason"] == "already_configured"
-    assert len(mock_get_data.mock_calls) == 0
+    mock_brother_client.async_update.assert_not_called()
 
 
 async def test_zeroconf_confirm_create_entry(
@@ -315,6 +313,7 @@ async def test_zeroconf_confirm_create_entry(
     assert result["data"][CONF_TYPE] == "laser"
     assert result["data"][SECTION_ADVANCED_SETTINGS][CONF_PORT] == 161
     assert result["data"][SECTION_ADVANCED_SETTINGS][CONF_COMMUNITY] == "public"
+    assert result["result"].unique_id == "0123456789"
 
 
 async def test_reconfigure_successful(