TestAuthenticationChain chain2 = new TestAuthenticationChain();
        TestAuthenticationChain chain3 = new TestAuthenticationChain();

        authenticationManager.addChain(chain1);
        authenticationManager.addChain(chain2);
        authenticationManager.addChain(chain3);

        authenticationManager.insert(user);

        assertEquals(1, chain1.updateCallCount);
        assertEquals(1, chain2.updateCallCount);

	<component name="viewHelper" class="org.codelibs.fess.helper.ViewHelper">
	</component>

	<component name="authenticationManager" class="org.codelibs.fess.auth.AuthenticationManager">
		<!--
		<postConstruct name="addChain">
			<arg>
				<component class="org.codelibs.fess.auth.chain.CommandChain">
					<property name="updateCommand">[
					"/usr/sbin/htpasswd",
					"-b",
					"/tmp/test.txt",
					"$USERNAME",
					"$PASSWORD"

            u = chain.load(u);
        }
        return u;
    }

    /**
     * Adds an authentication chain to the manager.
     * @param chain The authentication chain to add.
     */
    public void addChain(final AuthenticationChain chain) {
        chains = ArrayUtils.addAll(chains, chain);
    }

    /**
     * Returns a stream of authentication chains.
     * @return A stream wrapper of the authentication chains.