test_transaction: add Transaction.sweep() test case

lib/tests/test_transaction.py

@@ -112,3 +112,54 @@ class TestTransaction(unittest.TestCase):
 
         tx.sign(keypairs={x_pubkey: privkey})
         self.assertEquals(tx.serialize(), signed_blob)
+
+    def test_sweep(self):
+        privkeys = ['5HuH1SHoSVrgtPEwew9JzVAHGoKyp47x564mBCTgVmUT2Me1Q18']
+        unspent = [
+            {
+                "height": 371447,
+                "tx_hash": "8e4d173db094786cc128b0c12eebc2200c0d8bfc3ad04ba39f487222d18bae3c",
+                "tx_pos": 0,
+                "value": 599995800
+            }
+        ]
+        to_address = '1JtBahwvii2pRkBmb4QMfcJQux1rk3Jkbq'
+        network = NetworkMock(unspent)
+        tx = transaction.Transaction.sweep(privkeys, network, to_address, fee=5000)
+        result = transaction.deserialize(tx.serialize())
+        expected = {
+            'inputs': [{
+                'address': '1t28kmZypcPQrunmJk212dcPGPxbBtB6Y',
+                'is_coinbase': False,
+                'num_sig': 1,
+                'prevout_hash': '8e4d173db094786cc128b0c12eebc2200c0d8bfc3ad04ba39f487222d18bae3c',
+                'prevout_n': 0,
+                'pubkeys': ['047b9f9014f8d0d6f24dcaf5681b6ab185bd821e0fcce29d84e0452845baf1b2dbe332a7cd4dbdab786adda6d71b2188298c756b265c63de2794f7317b71a7ac02'],
+                'scriptSig': '48304502203f1ff200490d18bcb802c7cf7ba4264727b089f1db6746a62997285b5ac77969022100e495591ea5111bb23a782984736f32942570fda781b7ed085fc8c88a9756aaac0141047b9f9014f8d0d6f24dcaf5681b6ab185bd821e0fcce29d84e0452845baf1b2dbe332a7cd4dbdab786adda6d71b2188298c756b265c63de2794f7317b71a7ac02',
+                'sequence': 4294967295,
+                'signatures': ['304502203f1ff200490d18bcb802c7cf7ba4264727b089f1db6746a62997285b5ac77969022100e495591ea5111bb23a782984736f32942570fda781b7ed085fc8c88a9756aaac'],
+                'x_pubkeys': ['047b9f9014f8d0d6f24dcaf5681b6ab185bd821e0fcce29d84e0452845baf1b2dbe332a7cd4dbdab786adda6d71b2188298c756b265c63de2794f7317b71a7ac02']}],
+            'lockTime': 0,
+            'outputs': [{'address': '1JtBahwvii2pRkBmb4QMfcJQux1rk3Jkbq',
+                'prevout_n': 0,
+                'scriptPubKey': '76a914c4282f6060b811ee695ebb2068b8788213451d6a88ac',
+                'type': 'address',
+                'value': 599990800}],
+            'version': 1}
+        self.assertEquals(result, expected)
+
+        network = NetworkMock([])
+        tx = transaction.Transaction.sweep(privkeys, network, to_address, fee=5000)
+        self.assertEquals(tx, None)
+
+        privkeys = []
+        tx = transaction.Transaction.sweep(privkeys, network, to_address, fee=5000)
+        self.assertEquals(tx, None)
+
+class NetworkMock(object):
+
+    def __init__(self, unspent):
+        self.unspent = unspent
+
+    def synchronous_get(self, arg):
+        return [self.unspent]