diff --git a/tests/test_database/test_extract_data.py b/tests/test_database/test_extract_data.py
index 64e7e1da1358b02d0a133d401597af071962b794..418ea97751a4167656c6a2ab139937e26d3877a6 100644
--- a/tests/test_database/test_extract_data.py
+++ b/tests/test_database/test_extract_data.py
@@ -2,8 +2,7 @@ import unittest
 
 from sohstationviewer.database.extract_data import (
     get_chan_plot_info,
-    get_wf_plot_info,
-    get_chan_label,
+    get_seismic_chan_label,
     get_signature_channels,
     get_color_def,
     get_color_ranges,
@@ -11,7 +10,7 @@ from sohstationviewer.database.extract_data import (
 
 
 class TestExtractData(unittest.TestCase):
-    def test_get_chan_plot_info_good_channel_and_data_type(self):
+    def test_get_chan_plot_info_good_soh_channel_and_data_type(self):
         """
         Test basic functionality of get_chan_plot_info - channel and data type
         combination exists in database table `Channels`
@@ -25,9 +24,62 @@ class TestExtractData(unittest.TestCase):
                            'label': 'SOH/Data Def',
                            'fixPoint': 0,
                            'valueColors': '0:W|1:C'}
-        self.assertDictEqual(
-            get_chan_plot_info('SOH/Data Def', {'samplerate': 10}, 'RT130'),
-            expected_result)
+        self.assertDictEqual(get_chan_plot_info('SOH/Data Def', 'RT130'),
+                             expected_result)
+
+    def test_get_chan_plot_info_masspos_channel(self):
+        with self.subTest("Mass position 'VM'"):
+            expected_result = {'channel': 'VM1',
+                               'plotType': 'linesMasspos',
+                               'height': 4,
+                               'unit': 'V',
+                               'linkedChan': None,
+                               'convertFactor': 0.1,
+                               'label': 'VM1-MassPos',
+                               'fixPoint': 1,
+                               'valueColors': None}
+            self.assertDictEqual(get_chan_plot_info('VM1', 'Q330'),
+                                 expected_result)
+
+        with self.subTest("Mass position 'MassPos'"):
+            expected_result = {'channel': 'MassPos1',
+                               'plotType': 'linesMasspos',
+                               'height': 4,
+                               'unit': 'V',
+                               'linkedChan': None,
+                               'convertFactor': 1,
+                               'label': 'MassPos1',
+                               'fixPoint': 1,
+                               'valueColors': None}
+            self.assertDictEqual(get_chan_plot_info('MassPos1', 'RT130'),
+                                 expected_result)
+
+    def test_get_chan_plot_info_seismic_channel(self):
+        with self.subTest("RT130 Seismic"):
+            expected_result = {'channel': 'DS2',
+                               'plotType': 'linesSRate',
+                               'height': 4,
+                               'unit': '',
+                               'linkedChan': None,
+                               'convertFactor': 1,
+                               'label': 'DS2',
+                               'fixPoint': 0,
+                               'valueColors': None}
+            self.assertDictEqual(get_chan_plot_info('DS2', 'RT130'),
+                                 expected_result)
+
+        with self.subTest("MSeed Seismic"):
+            expected_result = {'channel': 'LHE',
+                               'plotType': 'linesSRate',
+                               'height': 4,
+                               'unit': '',
+                               'linkedChan': None,
+                               'convertFactor': 1,
+                               'label': 'LHE-EW',
+                               'fixPoint': 0,
+                               'valueColors': None}
+            self.assertDictEqual(get_chan_plot_info('LHE', 'Q330'),
+                                 expected_result)
 
     def test_get_chan_plot_info_data_type_is_unknown(self):
         """
@@ -44,10 +96,8 @@ class TestExtractData(unittest.TestCase):
                            'label': 'DEFAULT-Bad Channel ID',
                            'fixPoint': 0,
                            'valueColors': None}
-        self.assertDictEqual(
-            get_chan_plot_info('Bad Channel ID',
-                               {'samplerate': 10}, 'Unknown'),
-            expected_result)
+        self.assertDictEqual(get_chan_plot_info('Bad Channel ID', 'Unknown'),
+                             expected_result)
 
         # Channel exist in database
         expected_result = {'channel': 'LCE',
@@ -59,12 +109,8 @@ class TestExtractData(unittest.TestCase):
                            'label': 'LCE-PhaseError',
                            'fixPoint': 0,
                            'valueColors': 'L:W|D:Y'}
-        self.assertDictEqual(
-            get_chan_plot_info('LCE', {'samplerate': 10}, 'Unknown'),
-            expected_result)
-        self.assertDictEqual(
-            get_chan_plot_info('LCE', {'samplerate': 10}, 'Unknown'),
-            expected_result)
+        self.assertDictEqual(get_chan_plot_info('LCE', 'Unknown'),
+                             expected_result)
 
     def test_get_chan_plot_info_bad_channel_or_data_type(self):
         """
@@ -86,69 +132,54 @@ class TestExtractData(unittest.TestCase):
         # Data type has None value. None value comes from
         # controller.processing.detect_data_type.
         expected_result['label'] = 'DEFAULT-SOH/Data Def'
-        self.assertDictEqual(
-            get_chan_plot_info('SOH/Data Def', {'samplerate': 10}, None),
-            expected_result)
+        self.assertDictEqual(get_chan_plot_info('SOH/Data Def', None),
+                             expected_result)
 
         # Channel and data type are empty strings
         expected_result['label'] = 'DEFAULT-'
-        self.assertDictEqual(
-            get_chan_plot_info('', {'samplerate': 10}, ''),
-            expected_result)
+        self.assertDictEqual(get_chan_plot_info('', ''),
+                             expected_result)
 
         # Channel exists in database but data type does not
         expected_result['label'] = 'DEFAULT-SOH/Data Def'
         self.assertDictEqual(
-            get_chan_plot_info('SOH/Data Def',
-                               {'samplerate': 10}, 'Bad Data Type'),
+            get_chan_plot_info('SOH/Data Def', 'Bad Data Type'),
             expected_result
         )
 
         # Data type exists in database but channel does not
         expected_result['label'] = 'DEFAULT-Bad Channel ID'
-        self.assertDictEqual(
-            get_chan_plot_info('Bad Channel ID',
-                               {'samplerate': 10}, 'RT130'),
-            expected_result)
+        self.assertDictEqual(get_chan_plot_info('Bad Channel ID', 'RT130'),
+                             expected_result)
 
         # Both channel and data type exists in database but not their
         # combination
         expected_result['label'] = 'DEFAULT-SOH/Data Def'
-        self.assertDictEqual(
-            get_chan_plot_info('SOH/Data Def', {'samplerate': 10}, 'Q330'),
-            expected_result)
-
-    def test_get_wf_plot_info(self):
-        """
-        Test basic functionality of get_wf_plot_info - ensures returned
-        dictionary contains all the needed key. Bad channel IDs cases are
-        handled in tests for get_chan_label.
-        """
-        result = get_wf_plot_info('CH1')
-        expected_keys = {'param', 'plotType', 'valueColors', 'height',
-                         'label', 'unit', 'channel', 'convertFactor'}
-        self.assertSetEqual(set(result.keys()), expected_keys)
+        self.assertDictEqual(get_chan_plot_info('SOH/Data Def', 'Q330'),
+                             expected_result)
 
-    def test_get_chan_label_good_channel_id(self):
+    def test_get_seismic_chan_label_good_channel_id(self):
         """
-        Test basic functionality of get_chan_label - channel ID ends in one
-        of the keys in conf.dbSettings.dbConf['seisLabel'] or starts with 'DS'
+        Test basic functionality of get_seismic_chan_label - channel ID ends
+        in one of the keys in conf.dbSettings.dbConf['seisLabel'] or
+        starts with 'DS'
         """
         # Channel ID does not start with 'DS'
-        self.assertEqual(get_chan_label('CH1'), 'CH1-NS')
-        self.assertEqual(get_chan_label('CH2'), 'CH2-EW')
-        self.assertEqual(get_chan_label('CHG'), 'CHG')
+        self.assertEqual(get_seismic_chan_label('CH1'), 'CH1-NS')
+        self.assertEqual(get_seismic_chan_label('CH2'), 'CH2-EW')
+        self.assertEqual(get_seismic_chan_label('CHG'), 'CHG')
 
         # Channel ID starts with 'DS'
-        self.assertEqual(get_chan_label('DS-TEST-CHANNEL'), 'DS-TEST-CHANNEL')
+        self.assertEqual(get_seismic_chan_label('DS-TEST-CHANNEL'),
+                         'DS-TEST-CHANNEL')
 
     def test_get_chan_label_bad_channel_id(self):
         """
-        Test basic functionality of get_chan_label - channel ID does not end in
-        one of the keys in conf.dbSettings.dbConf['seisLabel'] or is the empty
-        string.
+        Test basic functionality of get_seismic_chan_label - channel ID does
+            not end in one of the keys in conf.dbSettings.dbConf['seisLabel']
+            or is the empty string.
         """
-        self.assertRaises(IndexError, get_chan_label, '')
+        self.assertRaises(IndexError, get_seismic_chan_label, '')
 
     def test_get_signature_channels(self):
         """Test basic functionality of get_signature_channels"""