chore: add tests for contract._computation after deploy (#370)

tests/unitary/contracts/vvm/test_vvm.py

@@ -8,6 +8,7 @@
 def test_load_partial_vvm():
     contract_deployer = boa.load_partial(mock_3_10_path)
     contract = contract_deployer.deploy(43)
+    assert contract._computation is not None
 
     assert contract.foo() == 42
     assert contract.bar() == 43
@@ -19,13 +20,15 @@ def test_loads_partial_vvm():
 
     contract_deployer = boa.loads_partial(code)
     contract = contract_deployer.deploy(43)
+    assert contract._computation is not None
 
     assert contract.foo() == 42
     assert contract.bar() == 43
 
 
 def test_load_vvm():
     contract = boa.load(mock_3_10_path, 43)
+    assert contract._computation is not None
 
     assert contract.foo() == 42
     assert contract.bar() == 43
@@ -45,6 +48,7 @@ def test_load_vvm():
 )
 def test_load_complex_version_vvm(version_pragma):
     contract = boa.loads(version_pragma + "\nfoo: public(uint256)")
+    assert contract._computation is not None
     assert contract.foo() == 0
 
 
@@ -53,6 +57,7 @@ def test_loads_vvm():
         code = f.read()
 
     contract = boa.loads(code, 43)
+    assert contract._computation is not None
 
     assert contract.foo() == 42
     assert contract.bar() == 43
@@ -67,6 +72,7 @@ def test_forward_args_on_deploy():
     random_addy = boa.env.generate_address()
 
     contract = contract_vvm_deployer.deploy(43, override_address=random_addy)
+    assert contract._computation is not None
 
     assert random_addy == contract.address