Port 'test_erc20information' from 'speculos' to 'ragger'

tests/ragger/test_erc20information.py

@@ -0,0 +1,26 @@
+import pytest
+from ledger_app_clients.ethereum.client import EthAppClient, StatusWord
+
+from ragger.error import ExceptionRAPDU
+from ragger.backend import BackendInterface
+
+
+def test_provide_erc20_token(backend: BackendInterface):
+
+    app_client = EthAppClient(backend)
+
+    addr = bytes.fromhex("e41d2489571d322189246dafa5ebde1f4699f498")
+    response = app_client.provide_token_metadata("ZRX", addr, 18, 1)
+    assert response.status == StatusWord.OK
+
+
+def test_provide_erc20_token_error(backend: BackendInterface):
+
+    app_client = EthAppClient(backend)
+
+    addr = bytes.fromhex("e41d2489571d322189246dafa5ebde1f4699f498")
+    sign = bytes.fromhex("deadbeef")
+    with pytest.raises(ExceptionRAPDU) as e:
+        app_client.provide_token_metadata("ZRX", addr, 18, 1, sign)
+
+    assert e.value.status == StatusWord.INVALID_DATA