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task15/04_unittest_task4_input/test.py

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+from task15 import BankCard
+import pytest
+
+# task 4
+def test_bank_card():
+    a = BankCard(100, 2)
+    assert a.total_sum == 100
+    assert a.balance_limit == 2
+    assert a.__str__() == "To learn the balance call balance."
+    a(50)
+    assert a.total_sum == 50
+    assert a.balance == 50
+    assert a.balance_limit == 1
+    try:
+        a(50)
+    except ValueError:
+        pass
+    assert a.total_sum == 0
+    a.put(30)
+    assert a.balance == 30
+    try:
+        a.balance
+    except ValueError:
+        pass
+
+    b = BankCard(50)
+    
+    for i in range(100):
+        assert b.balance == 50
+    
+    c = BankCard(300, 2)
+    d = a + c
+    assert d.total_sum == 330
+    assert d.balance_limit == 2