How to use

SecurityContextLoginModule

in

org.springframework.security.authentication.jaas

@Test
public void testNullAuthenticationInSecurityContextIgnored() throws Exception {
  this.module = new SecurityContextLoginModule();
  Map<String, String> options = new HashMap<>();
  options.put("ignoreMissingAuthentication", "true");
  this.module.initialize(this.subject, null, null, options);
  SecurityContextHolder.getContext().setAuthentication(null);
  assertThat(this.module.login()).as("Should return false and ask to be ignored")
      .isFalse();
}

@Test
public void testAbort() throws Exception {
  assertThat(this.module.abort()).as("Should return false, no auth is set")
      .isFalse();
  SecurityContextHolder.getContext().setAuthentication(this.auth);
  this.module.login();
  this.module.commit();
  assertThat(this.module.abort()).isTrue();
}

  @Test
  public void testNullLogout() throws Exception {
    assertThat(this.module.logout()).isFalse();
  }
}

@Before
public void setUp() throws Exception {
  this.module = new SecurityContextLoginModule();
  this.module.initialize(this.subject, null, null, null);
  SecurityContextHolder.clearContext();
}

@Test
public void testLogout() throws Exception {
  SecurityContextHolder.getContext().setAuthentication(this.auth);
  this.module.login();
  assertThat(this.module.logout()).as("Should return true as it succeeds").isTrue();
  assertThat(this.module.getAuthentication()).as("Authentication should be null")
      .isNull();
  assertThat(this.subject.getPrincipals().contains(this.auth))
      .withFailMessage(
          "Principals should not contain the authentication after logout")
      .isFalse();
}

@Test
public void testLoginSuccess() throws Exception {
  SecurityContextHolder.getContext().setAuthentication(this.auth);
  assertThat(this.module.login())
      .as("Login should succeed, there is an authentication set").isTrue();
  assertThat(this.module.commit())
      .withFailMessage(
          "The authentication is not null, this should return true")
      .isTrue();
  assertThat(this.subject.getPrincipals().contains(this.auth))
      .withFailMessage("Principals should contain the authentication").isTrue();
}

@Test
public void testNullAuthenticationInSecurityContext() throws Exception {
  try {
    SecurityContextHolder.getContext().setAuthentication(null);
    this.module.login();
    fail("LoginException expected, the authentication is null in the SecurityContext");
  }
  catch (Exception e) {
  }
}

@Test
public void testLoginException() throws Exception {
  try {
    this.module.login();
    fail("LoginException expected, there is no Authentication in the SecurityContext");
  }
  catch (LoginException e) {
  }
}