tests: added shamir invalid seed dryrun test (#371)

tests: added shamir invalid seed dryrun test

python/trezorlib/tests/device_tests/test_msg_recoverydevice_shamir_dryrun.py

@@ -2,7 +2,10 @@ import time
 
 import pytest
 
-from trezorlib import debuglink, device, messages
+from trezorlib import device, messages
+from trezorlib.exceptions import TrezorFailure
+
+from .conftest import setup_client
 
 pytestmark = pytest.mark.skip_t1
 
@@ -12,20 +15,16 @@ SHARES_20_2of3 = [
     "crush merchant academic always course verdict rescue paces fridge museum energy solution space ladybug junction national biology game fawn coal",
 ]
 
+INVALID_SHARES_20_2of3 = [
+    "gesture necklace academic acid civil round fiber buyer swing ancient jerky kitchen chest dining enjoy tension museum increase various rebuild",
+    "gesture necklace academic agency decrease justice ounce dragon shaped unknown material answer dress wrote smell family squeeze diet angry husband",
+]
 
+
+@setup_client(mnemonic=SHARES_20_2of3[0:2], passphrase=True)
 def test_2of3_dryrun(client):
     debug = client.debug
 
-    debuglink.load_device_by_mnemonic(
-        client,
-        mnemonic=SHARES_20_2of3[0:2],
-        pin="",
-        passphrase_protection=True,
-        label="test",
-        language="english",
-        skip_checksum=True,
-    )
-
     def input_flow():
         yield  # Confirm Dryrun
         debug.press_yes()
@@ -50,6 +49,32 @@ def test_2of3_dryrun(client):
     )
 
 
+@setup_client(mnemonic=SHARES_20_2of3[0:2], passphrase=True)
+def test_2of3_invalid_seed_dryrun(client):
+    debug = client.debug
+
+    def input_flow():
+        yield  # Confirm Dryrun
+        debug.press_yes()
+        # run recovery flow
+        yield from enter_all_shares(debug, INVALID_SHARES_20_2of3)
+
+    # test fails because of different seed on device
+    with client, pytest.raises(
+        TrezorFailure, match=r"The seed does not match the one in the device"
+    ):
+        client.set_input_flow(input_flow)
+        device.recover(
+            client,
+            passphrase_protection=False,
+            pin_protection=False,
+            label="label",
+            language="english",
+            dry_run=True,
+            type=messages.ResetDeviceBackupType.Slip39_Single_Group,
+        )
+
+
 def enter_all_shares(debug, shares):
     word_count = len(shares[0].split(" "))