diff --git a/tests/unit/core/test_Metadata.py b/tests/unit/core/test_Metadata.py
index c86af5708..b13456968 100644
--- a/tests/unit/core/test_Metadata.py
+++ b/tests/unit/core/test_Metadata.py
@@ -1,14 +1,14 @@
 from lbrynet.metadata import Metadata
 from twisted.trial import unittest
-
+from jsonschema import ValidationError
 
 class MetadataTest(unittest.TestCase):
-    def test_assertion_if_no_metadata(self):
+    def test_validation_error_if_no_metadata(self):
         metadata = {}
-        with self.assertRaises(AssertionError):
+        with self.assertRaises(ValidationError):
             Metadata.Metadata(metadata)
 
-    def test_assertion_if_source_is_missing(self):
+    def test_validation_error_if_source_is_missing(self):
         metadata = {
             'license': 'Oscilloscope Laboratories',
             'description': 'Four couples meet for Sunday brunch only to discover they are stuck in a house together as the world may be about to end.',
@@ -18,7 +18,7 @@ class MetadataTest(unittest.TestCase):
             'content-type': 'audio/mpeg',
             'thumbnail': 'http://ia.media-imdb.com/images/M/MV5BMTQwNjYzMTQ0Ml5BMl5BanBnXkFtZTcwNDUzODM5Nw@@._V1_SY1000_CR0,0,673,1000_AL_.jpg',
         }
-        with self.assertRaises(AssertionError):
+        with self.assertRaises(ValidationError):
             Metadata.Metadata(metadata)
 
     def test_metadata_works_without_fee(self):
@@ -36,7 +36,7 @@ class MetadataTest(unittest.TestCase):
         m = Metadata.Metadata(metadata)
         self.assertFalse('fee' in m)
 
-    def test_assertion_if_invalid_source(self):
+    def test_validation_error_if_invalid_source(self):
         metadata = {
             'license': 'Oscilloscope Laboratories',
             'description': 'Four couples meet for Sunday brunch only to discover they are stuck in a house together as the world may be about to end.',
@@ -48,10 +48,10 @@ class MetadataTest(unittest.TestCase):
             'content-type': 'audio/mpeg',
             'thumbnail': 'http://ia.media-imdb.com/images/M/MV5BMTQwNjYzMTQ0Ml5BMl5BanBnXkFtZTcwNDUzODM5Nw@@._V1_SY1000_CR0,0,673,1000_AL_.jpg',
         }
-        with self.assertRaises(AssertionError):
+        with self.assertRaises(ValidationError):
             Metadata.Metadata(metadata)
 
-    def test_assertion_if_missing_v001_field(self):
+    def test_validation_error_if_missing_v001_field(self):
         metadata = {
             'license': 'Oscilloscope Laboratories',
             'fee': {'LBC': {'amount': 50.0, 'address': 'bRQJASJrDbFZVAvcpv3NoNWoH74LQd5JNV'}},
@@ -63,7 +63,7 @@ class MetadataTest(unittest.TestCase):
             'content-type': 'audio/mpeg',
             'thumbnail': 'http://ia.media-imdb.com/images/M/MV5BMTQwNjYzMTQ0Ml5BMl5BanBnXkFtZTcwNDUzODM5Nw@@._V1_SY1000_CR0,0,673,1000_AL_.jpg'
         }
-        with self.assertRaises(AssertionError):
+        with self.assertRaises(ValidationError):
             Metadata.Metadata(metadata)
 
     def test_version_is_001_if_all_fields_are_present(self):
@@ -78,10 +78,10 @@ class MetadataTest(unittest.TestCase):
             'content-type': 'audio/mpeg',
             'thumbnail': 'http://ia.media-imdb.com/images/M/MV5BMTQwNjYzMTQ0Ml5BMl5BanBnXkFtZTcwNDUzODM5Nw@@._V1_SY1000_CR0,0,673,1000_AL_.jpg',
         }
-        m = Metadata.Metadata(metadata, process_now=False)
+        m = Metadata.Metadata(metadata, migrate=False)
         self.assertEquals('0.0.1', m.version)
 
-    def test_assertion_if_there_is_an_extra_field(self):
+    def test_validation_error_if_there_is_an_extra_field(self):
         metadata = {
             'license': 'Oscilloscope Laboratories',
             'description': 'Four couples meet for Sunday brunch only to discover they are stuck in a house together as the world may be about to end.',
@@ -94,8 +94,8 @@ class MetadataTest(unittest.TestCase):
             'thumbnail': 'http://ia.media-imdb.com/images/M/MV5BMTQwNjYzMTQ0Ml5BMl5BanBnXkFtZTcwNDUzODM5Nw@@._V1_SY1000_CR0,0,673,1000_AL_.jpg',
             'MYSTERYFIELD': '?'
         }
-        with self.assertRaises(AssertionError):
-            Metadata.Metadata(metadata, process_now=False)
+        with self.assertRaises(ValidationError):
+            Metadata.Metadata(metadata, migrate=False)
 
     def test_version_is_002_if_all_fields_are_present(self):
         metadata = {
@@ -112,7 +112,7 @@ class MetadataTest(unittest.TestCase):
             'content-type': 'video/mp4',
             'thumbnail': 'https://svs.gsfc.nasa.gov/vis/a010000/a012000/a012034/Combined.00_08_16_17.Still004.jpg'
         }
-        m = Metadata.Metadata(metadata, process_now=False)
+        m = Metadata.Metadata(metadata, migrate=False)
         self.assertEquals('0.0.2', m.version)
 
     def test_version_is_003_if_all_fields_are_present(self):
@@ -130,7 +130,7 @@ class MetadataTest(unittest.TestCase):
             'content_type': 'video/mp4',
             'thumbnail': 'https://svs.gsfc.nasa.gov/vis/a010000/a012000/a012034/Combined.00_08_16_17.Still004.jpg'
         }
-        m = Metadata.Metadata(metadata, process_now=False)
+        m = Metadata.Metadata(metadata, migrate=False)
         self.assertEquals('0.0.3', m.version)
 
     def test_version_claimed_is_001_but_version_is_002(self):
@@ -148,8 +148,8 @@ class MetadataTest(unittest.TestCase):
             'content-type': 'video/mp4',
             'thumbnail': 'https://svs.gsfc.nasa.gov/vis/a010000/a012000/a012034/Combined.00_08_16_17.Still004.jpg'
         }
-        with self.assertRaises(AssertionError):
-            Metadata.Metadata(metadata, process_now=False)
+        with self.assertRaises(ValidationError):
+            Metadata.Metadata(metadata, migrate=False)
 
     def test_version_claimed_is_002_but_version_is_003(self):
         metadata = {
@@ -166,8 +166,8 @@ class MetadataTest(unittest.TestCase):
             'content_type': 'video/mp4',
             'thumbnail': 'https://svs.gsfc.nasa.gov/vis/a010000/a012000/a012034/Combined.00_08_16_17.Still004.jpg'
         }
-        with self.assertRaises(AssertionError):
-            Metadata.Metadata(metadata, process_now=False)
+        with self.assertRaises(ValidationError):
+            Metadata.Metadata(metadata, migrate=False)
 
     def test_version_001_ports_to_003(self):
         metadata = {
@@ -181,7 +181,7 @@ class MetadataTest(unittest.TestCase):
             'content-type': 'audio/mpeg',
             'thumbnail': 'http://ia.media-imdb.com/images/M/MV5BMTQwNjYzMTQ0Ml5BMl5BanBnXkFtZTcwNDUzODM5Nw@@._V1_SY1000_CR0,0,673,1000_AL_.jpg',
         }
-        m = Metadata.Metadata(metadata, process_now=True)
+        m = Metadata.Metadata(metadata, migrate=True)
         self.assertEquals('0.0.3', m.version)
 
     def test_version_002_ports_to_003(self):
@@ -199,5 +199,5 @@ class MetadataTest(unittest.TestCase):
             'content-type': 'video/mp4',
             'thumbnail': 'https://svs.gsfc.nasa.gov/vis/a010000/a012000/a012034/Combined.00_08_16_17.Still004.jpg'
         }
-        m = Metadata.Metadata(metadata, process_now=True)
+        m = Metadata.Metadata(metadata, migrate=True)
         self.assertEquals('0.0.3', m.version)
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