Increase Squeezebox config_flow test coverage to 100% (#133484)

Co-authored-by: Joost Lekkerkerker <joostlek@outlook.com>

tests/components/squeezebox/test_config_flow.py

@@ -166,6 +166,67 @@ async def test_form_invalid_auth(hass: HomeAssistant) -> None:
     assert result["errors"] == {"base": "invalid_auth"}
 
 
+async def test_form_validate_exception(hass: HomeAssistant) -> None:
+    """Test we handle exception."""
+
+    with (
+        patch(
+            "pysqueezebox.Server.async_query",
+            return_value={"uuid": UUID},
+        ),
+        patch(
+            "homeassistant.components.squeezebox.async_setup_entry",
+            return_value=True,
+        ),
+        patch(
+            "homeassistant.components.squeezebox.config_flow.async_discover",
+            mock_discover,
+        ),
+    ):
+        result = await hass.config_entries.flow.async_init(
+            DOMAIN, context={"source": config_entries.SOURCE_USER}
+        )
+        assert result["type"] is FlowResultType.FORM
+        assert result["step_id"] == "edit"
+
+        with patch(
+            "homeassistant.components.squeezebox.config_flow.Server.async_query",
+            side_effect=Exception,
+        ):
+            result = await hass.config_entries.flow.async_configure(
+                result["flow_id"],
+                {
+                    CONF_HOST: HOST,
+                    CONF_PORT: PORT,
+                    CONF_USERNAME: "",
+                    CONF_PASSWORD: "",
+                },
+            )
+
+            assert result["type"] is FlowResultType.FORM
+            assert result["errors"] == {"base": "unknown"}
+
+        result = await hass.config_entries.flow.async_configure(
+            result["flow_id"],
+            {
+                CONF_HOST: HOST,
+                CONF_PORT: PORT,
+                CONF_USERNAME: "",
+                CONF_PASSWORD: "",
+                CONF_HTTPS: False,
+            },
+        )
+        assert result["type"] is FlowResultType.CREATE_ENTRY
+        assert result["title"] == HOST
+        assert result["data"] == {
+            CONF_HOST: HOST,
+            CONF_PORT: PORT,
+            CONF_USERNAME: "",
+            CONF_PASSWORD: "",
+            CONF_HTTPS: False,
+        }
+
+
 async def test_form_cannot_connect(hass: HomeAssistant) -> None:
     """Test we handle cannot connect error."""
     result = await hass.config_entries.flow.async_init(