diff --git a/tests/test_FileTarget.py b/tests/test_FileTarget.py
index 3ae8dcd..9c7fb5b 100644
--- a/tests/test_FileTarget.py
+++ b/tests/test_FileTarget.py
@@ -9,13 +9,12 @@ class TestFileTarget(TestCase):
     def setUp(self):
         self.target = FileTarget("data/target/target_demo_1.csv")
 
-
-class TestInit(TestFileTarget):
     def test_signal(self):
-        signal = SpectralQty(np.arange(200, 210, 1) * u.nm,
+        signal = SpectralQty(np.arange(200, 210, 1) << u.nm,
                              np.arange(1.1e-15, 2.0e-15, 1e-16) << u.W / (u.m ** 2 * u.nm))
         self.assertTrue(self.target.calcSignal().__eq__(signal))
 
     def test_noise(self):
-        noise = SpectralQty(list(range(200, 210, 1)) * u.nm, [0] * 10 << u.W / (u.m ** 2 * u.nm * u.sr))
+        noise = SpectralQty(np.arange(200, 210, 1) << u.nm,
+                            [0.] * 10 << u.W / (u.m ** 2 * u.nm * u.sr))
         self.assertEqual(self.target.calcNoise(), noise)