nem: transaction create mosaic supply change

src/apps/nem/transaction.py

@@ -105,6 +105,27 @@ def nem_transaction_create_mosaic_creation(network: int, timestamp: int, signer_
     return w
 
 
+def nem_transaction_create_mosaic_supply_change(network: int, timestamp: int, signer_public_key: bytes,	fee: int,
+                                                deadline: int, namespace: str, mosaic: str, type: int, delta: int):
+
+    w = _nem_transaction_write_common(NEM_TRANSACTION_TYPE_MOSAIC_SUPPLY_CHANGE,
+                                      _nem_get_version(network),
+                                      timestamp,
+                                      signer_public_key,
+                                      fee,
+                                      deadline)
+
+    identifier_length = 4 + len(namespace) + 4 + len(mosaic)
+    write_uint32(w, identifier_length)
+    write_bytes_with_length(w, bytearray(namespace))
+    write_bytes_with_length(w, bytearray(mosaic))
+
+    write_uint32(w, type)
+    write_uint64(w, delta)
+
+    return w
+
+
 def nem_write_mosaic(w: bytearray, name: str, value):
     if type(value) == bool:
         if value:

tests/test_apps.nem.transaction.mosaic_supply_change.py

@@ -0,0 +1,69 @@
+from common import *
+
+from apps.nem.transaction import *
+from trezor.crypto import hashlib
+
+
+class TestNemTransactionMosaicCreation(unittest.TestCase):
+
+    def test_nem_transaction_create_mosaic_supply_change(self):
+
+        # http://bigalice2.nem.ninja:7890/transaction/get?hash=33a50fdd4a54913643a580b2af08b9a5b51b7cee922bde380e84c573a7969c50
+        t = nem_transaction_create_mosaic_supply_change(NEM_NETWORK_TESTNET,
+                                                        14071648,
+                                                        unhexlify("994793ba1c789fa9bdea918afc9b06e2d0309beb1081ac5b6952991e4defd324"),
+                                                        108000000,
+                                                        14075248,
+                                                        "gimre.games.pong",
+                                                        "paddles",
+                                                        1,
+                                                        1234)
+
+        self.assertEqual(hashlib.sha3_256(t).digest(True),
+                         unhexlify('33a50fdd4a54913643a580b2af08b9a5b51b7cee922bde380e84c573a7969c50'))
+
+        # http://bigalice2.nem.ninja:7890/transaction/get?hash=1ce8e8894d077a66ff22294b000825d090a60742ec407efd80eb8b19657704f2
+        t = nem_transaction_create_mosaic_supply_change(NEM_NETWORK_TESTNET,
+                                                        14126909,
+                                                        unhexlify("84afa1bbc993b7f5536344914dde86141e61f8cbecaf8c9cefc07391f3287cf5"),
+                                                        108000000,
+                                                        14130509,
+                                                        "jabo38_ltd.fuzzy_kittens_cafe",
+                                                        "coupons",
+                                                        2,
+                                                        1)
+
+        self.assertEqual(hashlib.sha3_256(t).digest(True),
+                         unhexlify('1ce8e8894d077a66ff22294b000825d090a60742ec407efd80eb8b19657704f2'))
+
+        # http://bigalice3.nem.ninja:7890/transaction/get?hash=694e493e9576d2bcf60d85747e302ac2e1cc27783187947180d4275a713ff1ff
+        t = nem_transaction_create_mosaic_supply_change(NEM_NETWORK_MAINNET,
+                                                        53377685,
+                                                        unhexlify("b7ccc27b21ba6cf5c699a8dc86ba6ba98950442597ff9fa30e0abe0f5f4dd05d"),
+                                                        20000000,
+                                                        53464085,
+                                                        "abvapp",
+                                                        "abv",
+                                                        1,
+                                                        9000000)
+
+        self.assertEqual(hashlib.sha3_256(t).digest(True),
+                         unhexlify('694e493e9576d2bcf60d85747e302ac2e1cc27783187947180d4275a713ff1ff'))
+
+        # http://bigalice3.nem.ninja:7890/transaction/get?hash=09836334e123970e068d5b411e4d1df54a3ead10acf1ad5935a2cdd9f9680185
+        t = nem_transaction_create_mosaic_supply_change(NEM_NETWORK_MAINNET,
+                                                        55176304,
+                                                        unhexlify("75f001a8641e2ce5c4386883dda561399ed346177411b492a677b73899502f13"),
+                                                        20000000,
+                                                        55262704,
+                                                        "sushi",
+                                                        "wasabi",
+                                                        2,
+                                                        20)
+
+        self.assertEqual(hashlib.sha3_256(t).digest(True),
+                         unhexlify('09836334e123970e068d5b411e4d1df54a3ead10acf1ad5935a2cdd9f9680185'))
+
+
+if __name__ == '__main__':
+    unittest.main()