adds coverity tests

wrapper/python/wolfssl/.gitignore

@@ -11,6 +11,9 @@ dist/
 
 # Unit test
 .tox/
+htmlcov/
+.coverage
+
 # Sphinx documentation
 docs/_build/
 

wrapper/python/wolfssl/test/conftest.py

@@ -29,9 +29,8 @@ import pytest
 
 @pytest.fixture
 def tcp_socket():
-    sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
-    yield sock
-    sock.close()
+    with socket.socket(socket.AF_INET, socket.SOCK_STREAM) as sock:
+        yield sock
 
 @pytest.fixture(params=[ssl, wolfssl], ids=["ssl", "wolfssl"])
 def ssl_provider(request):

wrapper/python/wolfssl/test/test_context.py

@@ -121,6 +121,9 @@ def test_context_creation(ssl_context):
     assert ssl_context != None
 
 def test_verify_mode(ssl_provider, ssl_context):
+    with pytest.raises(ValueError):
+        ssl_context.verify_mode = -1
+
     assert ssl_context.verify_mode == ssl_provider.CERT_NONE
 
     ssl_context.verify_mode = ssl_provider.CERT_REQUIRED
@@ -129,6 +132,9 @@ def test_verify_mode(ssl_provider, ssl_context):
 def test_set_ciphers(ssl_context):
     ssl_context.set_ciphers("DHE-RSA-AES256-SHA256")
 
+    with pytest.raises(Exception):
+        ssl_context.set_ciphers("foo")
+
 def test_load_cert_chain_raises(ssl_context):
     with pytest.raises(TypeError):
         ssl_context.load_cert_chain(None)

wrapper/python/wolfssl/test/test_methods.py

@@ -29,8 +29,8 @@ from wolfssl._methods import (WolfSSLMethod, PROTOCOL_SSLv3, PROTOCOL_SSLv23,
 from wolfssl._ffi import ffi as _ffi
 
 @pytest.fixture(
-    params=[PROTOCOL_SSLv3, PROTOCOL_TLSv1, PROTOCOL_TLSv1_1],
-    ids=["SSLv3", "TLSv1", "TLSv1_1"])
+    params=[-1, PROTOCOL_SSLv3, PROTOCOL_TLSv1, PROTOCOL_TLSv1_1],
+    ids=["invalid", "SSLv3", "TLSv1", "TLSv1_1"])
 def unsupported_method(request):
     yield request.param