diff --git a/pyramid/tests/test_phasemapper.py b/pyramid/tests/test_phasemapper.py
index d16745877ea2e785b05333d281c4d68b38775844..746b107e111bda6e64b57e4da294866c8e040bc3 100644
--- a/pyramid/tests/test_phasemapper.py
+++ b/pyramid/tests/test_phasemapper.py
@@ -97,7 +97,7 @@ class TestCasePhaseMapperFDFCpad1(unittest.TestCase):
         self.mapper = None
 
     def test_PhaseMapperFDFC_call(self):
-        phase_ref = PhaseMap.load_from_hdf5(os.path.join(self.path, 'phase_map_fc_pad.hdf5'))
+        phase_ref = PhaseMap.load_from_hdf5(os.path.join(self.path, 'phase_map_fc_pad1.hdf5'))
         phase_map = self.mapper(self.mag_proj)
         assert_allclose(phase_map.phase, phase_ref.phase, atol=1E-7,
                         err_msg='Unexpected behavior in __call__()!')
@@ -111,7 +111,41 @@ class TestCasePhaseMapperFDFCpad1(unittest.TestCase):
                         err_msg='Inconsistency between __call__() and jac_dot()!')
         n = self.mapper.n
         jac = np.array([self.mapper.jac_dot(np.eye(n)[:, i]) for i in range(n)]).T
-        jac_ref = np.load(os.path.join(self.path, 'jac_fc_pad.npy'))
+        jac_ref = np.load(os.path.join(self.path, 'jac_fc_pad1.npy'))
+        assert_allclose(jac, jac_ref, atol=1E-7,
+                        err_msg='Unexpected behaviour in the the jacobi matrix!')
+
+    def test_PhaseMapperFDFC_jac_T_dot(self):
+        self.assertRaises(NotImplementedError, self.mapper.jac_T_dot, None)
+
+
+class TestCasePhaseMapperFDFCpad10(unittest.TestCase):
+    def setUp(self):
+        self.path = os.path.join(os.path.dirname(os.path.realpath(__file__)), 'test_phasemapper')
+        self.mag_proj = VectorData.load_from_hdf5(os.path.join(self.path, 'mag_proj.hdf5'))
+        self.mapper = PhaseMapperFDFC(self.mag_proj.a, self.mag_proj.dim[1:], padding=200)
+
+    def tearDown(self):
+        self.path = None
+        self.mag_proj = None
+        self.mapper = None
+
+    def test_PhaseMapperFDFC_call(self):
+        phase_ref = PhaseMap.load_from_hdf5(os.path.join(self.path, 'phase_map_fc_pad10.hdf5'))
+        phase_map = self.mapper(self.mag_proj)
+        assert_allclose(phase_map.phase, phase_ref.phase, atol=1E-7,
+                        err_msg='Unexpected behavior in __call__()!')
+        assert_allclose(phase_map.a, phase_ref.a, err_msg='Unexpected behavior in __call__()!')
+
+    def test_PhaseMapperFDFC_jac_dot(self):
+        phase = self.mapper(self.mag_proj).phase
+        mag_proj_vec = self.mag_proj.field[:2, ...].flatten()
+        phase_jac = self.mapper.jac_dot(mag_proj_vec).reshape(self.mapper.dim_uv)
+        assert_allclose(phase, phase_jac, atol=1E-7,
+                        err_msg='Inconsistency between __call__() and jac_dot()!')
+        n = self.mapper.n
+        jac = np.array([self.mapper.jac_dot(np.eye(n)[:, i]) for i in range(n)]).T
+        jac_ref = np.load(os.path.join(self.path, 'jac_fc_pad10.npy'))
         assert_allclose(jac, jac_ref, atol=1E-7,
                         err_msg='Unexpected behaviour in the the jacobi matrix!')
 
diff --git a/pyramid/tests/test_phasemapper/jac_fc_pad.npy b/pyramid/tests/test_phasemapper/jac_fc_pad1.npy
similarity index 100%
rename from pyramid/tests/test_phasemapper/jac_fc_pad.npy
rename to pyramid/tests/test_phasemapper/jac_fc_pad1.npy
diff --git a/pyramid/tests/test_phasemapper/jac_fc_pad10.npy b/pyramid/tests/test_phasemapper/jac_fc_pad10.npy
new file mode 100644
index 0000000000000000000000000000000000000000..963a5dc1853a96000b6304e47498cb51f2959e2c
Binary files /dev/null and b/pyramid/tests/test_phasemapper/jac_fc_pad10.npy differ
diff --git a/pyramid/tests/test_phasemapper/phase_map_fc_pad.hdf5 b/pyramid/tests/test_phasemapper/phase_map_fc_pad1.hdf5
similarity index 100%
rename from pyramid/tests/test_phasemapper/phase_map_fc_pad.hdf5
rename to pyramid/tests/test_phasemapper/phase_map_fc_pad1.hdf5
diff --git a/pyramid/tests/test_phasemapper/phase_map_fc_pad10.hdf5 b/pyramid/tests/test_phasemapper/phase_map_fc_pad10.hdf5
new file mode 100644
index 0000000000000000000000000000000000000000..df8258665764451df583d014660e9e747e5c65d6
Binary files /dev/null and b/pyramid/tests/test_phasemapper/phase_map_fc_pad10.hdf5 differ