diff --git a/tests/test_device_load.py b/tests/test_device_load.py
new file mode 100644
index 0000000..39e59a5
--- /dev/null
+++ b/tests/test_device_load.py
@@ -0,0 +1,34 @@
+import unittest
+import common
+
+from trezorlib import messages_pb2 as messages
+
+class TestDeviceLoad(common.TrezorTest):
+
+    def test_load_device_1(self):
+        self.setup_mnemonic_nopin_nopassphrase()
+
+        mnemonic = self.client.debug.read_mnemonic()
+        self.assertEqual(mnemonic, self.mnemonic12)
+
+        pin = self.client.debug.read_pin()[0]
+        self.assertEqual(pin, '')
+
+        passphrase_protection = self.client.debug.read_passphrase_protection()
+        self.assertEqual(passphrase_protection, False)
+
+    def test_load_device_2(self):
+        self.setup_mnemonic_pin_passphrase()
+
+        mnemonic = self.client.debug.read_mnemonic()
+        self.assertEqual(mnemonic, self.mnemonic12)
+
+        pin = self.client.debug.read_pin()[0]
+        self.assertEqual(pin, self.pin4)
+
+        passphrase_protection = self.client.debug.read_passphrase_protection()
+        self.assertEqual(passphrase_protection, True)
+
+
+if __name__ == '__main__':
+    unittest.main()
diff --git a/tests/test_device_recover.py b/tests/test_device_recover.py
new file mode 100644
index 0000000..1f634c7
--- /dev/null
+++ b/tests/test_device_recover.py
@@ -0,0 +1,12 @@
+import unittest
+import common
+
+from trezorlib import messages_pb2 as messages
+
+class TestDeviceRecover(common.TrezorTest):
+
+    def test_recover_device(self):
+        pass
+
+if __name__ == '__main__':
+    unittest.main()
diff --git a/tests/test_device_reset.py b/tests/test_device_reset.py
new file mode 100644
index 0000000..d0bfe29
--- /dev/null
+++ b/tests/test_device_reset.py
@@ -0,0 +1,12 @@
+import unittest
+import common
+
+from trezorlib import messages_pb2 as messages
+
+class TestDeviceReset(common.TrezorTest):
+
+    def test_reset_device(self):
+        pass
+
+if __name__ == '__main__':
+    unittest.main()
diff --git a/tests/test_signtx.py b/tests/test_signtx.py
index 4346f0c..4dbd2c4 100644
--- a/tests/test_signtx.py
+++ b/tests/test_signtx.py
@@ -322,6 +322,8 @@ class TestSignTx(common.TrezorTest):
             self.assert_(False, "types.Failure_NotEnoughFunds expected")
 
     def test_estimate_size(self):
+        self.setup_mnemonic_nopin_nopassphrase()
+
         inp1 = proto_types.TxInputType(address_n=[0],  # 14LmW5k4ssUrtbAB4255zdqv3b4w1TuX9e
                              # amount=390000,
                              prev_hash=binascii.unhexlify('d5f65ee80147b4bcc70b75e4bbf2d7382021b871bd8867ef8fa525ef50864882'),
diff --git a/trezorlib/debuglink.py b/trezorlib/debuglink.py
index 9021cc8..c6d9897 100644
--- a/trezorlib/debuglink.py
+++ b/trezorlib/debuglink.py
@@ -54,6 +54,11 @@ class DebugLink(object):
         obj = self.transport.read_blocking()
         return obj.node
 
+    def read_passphrase_protection(self):
+        self.transport.write(proto.DebugLinkGetState())
+        obj = self.transport.read_blocking()
+        return obj.passphrase_protection
+
     def press_button(self, yes_no):
         print "Pressing", yes_no
         self.button_func(yes_no)