web UI added and refactoring done

python_app/tests/test_kamil_adc_neutral_preprocess.py

@@ -60,6 +60,46 @@ class KamilAdcNeutralPreprocessTest(unittest.TestCase):
         with self.assertRaisesRegex(ValueError, "kamil_adc"):
             build_kamil_adc_neutral_s21_sets(config, point_count=4)
 
+    @staticmethod
+    def _kamil_config() -> RunConfigModel:
+        return RunConfigModel.from_dict(
+            {
+                "radar": {
+                    "model": "kamil_adc",
+                    "sweep": {"start_hz": 1_000_000.0, "stop_hz": 4_000_000.0,
+                              "if_bandwidth_hz": 1.0, "stimulus_power_dbm": -10.0},
+                },
+                "switches": {"port1": {"positions": 1}, "port2": {"positions": 2}},
+                "run": {"combos": [{"input": 0, "output": 0}, {"input": 1, "output": 0}]},
+            }
+        )
+
+    def test_point_count_zero_or_negative_raises(self) -> None:
+        config = self._kamil_config()
+        for bad in (0, -1):
+            with self.subTest(point_count=bad), self.assertRaisesRegex(ValueError, "point count"):
+                build_kamil_adc_neutral_s21_sets(config, point_count=bad)
+
+    def test_single_point_sweep(self) -> None:
+        calibration, _reference = build_kamil_adc_neutral_s21_sets(self._kamil_config(), point_count=1)
+        for trace in calibration.traces:
+            self.assertEqual(trace.frequency_hz.tolist(), [1_000_000.0])
+            self.assertEqual(trace.s21.shape, (1,))
+
+    def test_dtypes_are_float32_and_complex64(self) -> None:
+        calibration, _reference = build_kamil_adc_neutral_s21_sets(self._kamil_config(), point_count=4)
+        trace = calibration.traces[0]
+        self.assertEqual(trace.frequency_hz.dtype, np.float32)
+        self.assertEqual(trace.s21.dtype, np.complex64)
+        self.assertEqual(trace.s11.dtype, np.complex64)
+
+    def test_calibration_s21_is_a_nonzero_divisor(self) -> None:
+        # The C++ through-calibrator divides measured/calibration, so calibration S21
+        # must never be zero — that is the whole point of the '1+0j neutral' contract.
+        calibration, _reference = build_kamil_adc_neutral_s21_sets(self._kamil_config(), point_count=4)
+        for trace in calibration.traces:
+            self.assertTrue(bool(np.all(trace.s21 != 0)))
+
 
 if __name__ == "__main__":
     unittest.main()