Test MultiFactorVerificationFilter class

iam-login-service/src/test/java/it/infn/mw/iam/test/multi_factor_authentication/MultiFactorVerificationFilterTests.java

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+/**
+ * Copyright (c) Istituto Nazionale di Fisica Nucleare (INFN). 2016-2021
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package it.infn.mw.iam.test.multi_factor_authentication;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertNotNull;
+import static org.junit.Assert.assertThrows;
+import static org.mockito.ArgumentMatchers.any;
+import static org.mockito.Mockito.mock;
+import static org.mockito.Mockito.when;
+
+import java.nio.file.ProviderNotFoundException;
+import java.util.ArrayList;
+
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
+
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+import org.mockito.InjectMocks;
+import org.mockito.Mock;
+import org.mockito.MockitoAnnotations;
+import org.springframework.security.authentication.AuthenticationManager;
+import org.springframework.security.authentication.BadCredentialsException;
+import org.springframework.security.core.Authentication;
+import org.springframework.security.core.context.SecurityContextHolder;
+import org.springframework.security.web.authentication.AuthenticationFailureHandler;
+import org.springframework.security.web.authentication.AuthenticationSuccessHandler;
+
+import it.infn.mw.iam.authn.multi_factor_authentication.MultiFactorVerificationFilter;
+import it.infn.mw.iam.core.ExtendedAuthenticationToken;
+
+public class MultiFactorVerificationFilterTests {
+
+  @Mock
+  private AuthenticationManager authenticationManager;
+
+  @Mock
+  private AuthenticationSuccessHandler successHandler;
+
+  @Mock
+  private AuthenticationFailureHandler failureHandler;
+
+  @Mock
+  private HttpServletRequest request;
+
+  @Mock
+  private HttpServletResponse response;
+
+  @Mock
+  private Authentication authentication;
+
+  @InjectMocks
+  private MultiFactorVerificationFilter multiFactorVerificationFilter;
+
+  @BeforeEach
+  public void setUp() {
+    MockitoAnnotations.openMocks(this);
+  }
+
+  @Test
+  public void testAuthenticationSuccess() throws Exception {
+    Authentication mockAuth = mock(ExtendedAuthenticationToken.class);
+    when(mockAuth.getName()).thenReturn("username");
+
+    SecurityContextHolder.getContext().setAuthentication(mockAuth);
+
+    Authentication mockAuthenticatedToken =
+        new ExtendedAuthenticationToken("username", null, new ArrayList<>());
+    when(authenticationManager.authenticate(any(Authentication.class)))
+      .thenReturn(mockAuthenticatedToken);
+
+    when(request.getMethod()).thenReturn("POST");
+    when(request.getParameter("totp")).thenReturn("123456");
+
+    Authentication result = multiFactorVerificationFilter.attemptAuthentication(request, response);
+
+    assertNotNull(result);
+    assertEquals(mockAuthenticatedToken, result);
+  }
+
+  @Test
+  public void testAuthenticationFailureDueToInvalidTOTP() throws Exception {
+    Authentication mockAuth = mock(ExtendedAuthenticationToken.class);
+    when(mockAuth.getName()).thenReturn("username");
+
+    SecurityContextHolder.getContext().setAuthentication(mockAuth);
+
+    when(authenticationManager.authenticate(any(Authentication.class)))
+      .thenThrow(new BadCredentialsException("Invalid TOTP"));
+
+    when(request.getMethod()).thenReturn("POST");
+    when(request.getParameter("totp")).thenReturn("wrong-totp");
+
+    assertThrows(BadCredentialsException.class,
+        () -> multiFactorVerificationFilter.attemptAuthentication(request, response));
+  }
+
+  @Test
+  public void testAuthenticationFailureWhenTotpIsNull() throws Exception {
+    Authentication mockAuth = mock(ExtendedAuthenticationToken.class);
+    when(mockAuth.getName()).thenReturn("username");
+
+    SecurityContextHolder.getContext().setAuthentication(mockAuth);
+
+    when(request.getMethod()).thenReturn("POST");
+    when(request.getParameter("totp")).thenReturn(null);
+
+    assertThrows(ProviderNotFoundException.class,
+        () -> multiFactorVerificationFilter.attemptAuthentication(request, response));
+  }
+}
+