}

        @Override
        public boolean isUserInRole(String role) {
            return false;
        }

        @Override
        public java.security.Principal getUserPrincipal() {
            return null;
        }

        @Override
        public String getRequestedSessionId() {
            return null;
        }

        @Override

        NtlmHttpServletRequest request = new NtlmHttpServletRequest(mockRequest, mockPrincipal);
        assertEquals("user1", request.getRemoteUser());
        assertSame(mockPrincipal, request.getUserPrincipal());
        assertEquals("NTLM", request.getAuthType());
        verify(mockPrincipal, times(1)).getName();
    }

    @ParameterizedTest
    @ValueSource(strings = { "", "   ", "unknown" })

        if (StringUtil.isNotBlank(value)) {
            final String password = credentials.getPassword() != null ? new String(credentials.getPassword()) : "";
            return value.replace(USERNAME, credentials.getUserPrincipal().getName()).replace(PASSWORD, password);
        }
        return StringUtil.EMPTY;
    }

    /**
     * Returns a string representation of this object.
     * @return A string representation.

     */
    protected String replaceCredentials(final Credentials credentials, final String value) {
        if (StringUtil.isNotBlank(value)) {
            return value.replace(USERNAME, credentials.getUserPrincipal().getName()).replace(PASSWORD, credentials.getPassword());
        }
        return StringUtil.EMPTY;
    }

    /**
     * Returns a string representation of this object.