be.dnsbelgium.rate.spring.security.LeakyBucketVoterTest.java Source code

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Here is the source code for be.dnsbelgium.rate.spring.security.LeakyBucketVoterTest.java

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/**
 * Copyright 2014 DNS Belgium vzw
 *
 * 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 be.dnsbelgium.rate.spring.security;

import be.dnsbelgium.rate.LeakyBucketKey;
import be.dnsbelgium.rate.LeakyBucketService;
import be.dnsbelgium.rdap.spring.security.RDAPErrorException;
import org.junit.After;
import org.junit.Before;
import org.junit.Test;
import org.springframework.security.access.AccessDecisionVoter;
import org.springframework.security.access.ConfigAttribute;
import org.springframework.security.access.SecurityConfig;
import org.springframework.security.authentication.TestingAuthenticationToken;
import org.springframework.security.core.Authentication;
import org.springframework.security.core.context.SecurityContext;
import org.springframework.security.core.context.SecurityContextHolder;
import org.springframework.security.core.context.SecurityContextImpl;

import static org.junit.Assert.assertEquals;
import static org.mockito.Matchers.any;
import static org.mockito.Matchers.eq;
import static org.mockito.Mockito.*;

public class LeakyBucketVoterTest {

    private static final String USERNAME = "bob";
    public static final int DEFAULT_AMOUNT = 1;
    public static final int CONFIG_AMOUNT = 2;
    public static final String LB_CONFIG = LeakyBucketVoter.PREFIX + "#" + CONFIG_AMOUNT;
    private UsernameLeakyBucketKeyFactory keyFactory;

    @Before
    public void setup() {
        SecurityContext context = new SecurityContextImpl();
        context.setAuthentication(new TestingAuthenticationToken(USERNAME, null));
        SecurityContextHolder.setContext(context);

        keyFactory = new UsernameLeakyBucketKeyFactory();
    }

    @After
    public void tearDown() {
        SecurityContextHolder.clearContext();
    }

    @Test
    public void testEmptyBucket() {
        LeakyBucketService service = mock(LeakyBucketService.class);
        when(service.add(any(LeakyBucketKey.class), eq(CONFIG_AMOUNT))).thenReturn(true);
        final LeakyBucketVoter voter = new LeakyBucketVoter(service, keyFactory, DEFAULT_AMOUNT);
        final Authentication authentication = mock(Authentication.class);
        final Object securedObject = mock(Object.class);
        assertEquals(AccessDecisionVoter.ACCESS_GRANTED,
                voter.vote(authentication, securedObject, SecurityConfig.createList(LB_CONFIG)));
        verify(service, times(1)).add(any(LeakyBucketKey.class), eq(CONFIG_AMOUNT));
    }

    @Test(expected = RDAPErrorException.class)
    public void testFullBucket() {
        LeakyBucketService service = mock(LeakyBucketService.class);
        when(service.add(any(LeakyBucketKey.class), eq(CONFIG_AMOUNT))).thenReturn(false);
        final LeakyBucketVoter voter = new LeakyBucketVoter(service, keyFactory, DEFAULT_AMOUNT);
        final Authentication authentication = mock(Authentication.class);
        final Object securedObject = mock(Object.class);
        try {
            voter.vote(authentication, securedObject, SecurityConfig.createList(LB_CONFIG));
        } catch (RDAPErrorException rde) {
            verify(service, times(1)).add(any(LeakyBucketKey.class), eq(CONFIG_AMOUNT));
            throw rde;
        }
    }

    @Test
    public void testNoLeakyBucketConfigAttributes() {
        LeakyBucketService service = mock(LeakyBucketService.class);
        when(service.add(any(LeakyBucketKey.class), eq(DEFAULT_AMOUNT))).thenReturn(true);
        final LeakyBucketVoter voter = new LeakyBucketVoter(service, keyFactory, DEFAULT_AMOUNT);
        final Authentication authentication = mock(Authentication.class);
        final Object securedObject = mock(Object.class);
        assertEquals(AccessDecisionVoter.ACCESS_GRANTED,
                voter.vote(authentication, securedObject, SecurityConfig.createList("ROLE_USER")));
        verify(service, times(1)).add(any(LeakyBucketKey.class), eq(DEFAULT_AMOUNT));

    }

    @Test
    public void testNullConfigAttributes() {
        LeakyBucketService service = mock(LeakyBucketService.class);
        when(service.add(any(LeakyBucketKey.class), eq(DEFAULT_AMOUNT))).thenReturn(true);
        final LeakyBucketVoter voter = new LeakyBucketVoter(service, keyFactory, DEFAULT_AMOUNT);
        final Authentication authentication = mock(Authentication.class);
        final Object securedObject = mock(Object.class);
        assertEquals(AccessDecisionVoter.ACCESS_GRANTED, voter.vote(authentication, securedObject, null));
        verify(service, times(1)).add(any(LeakyBucketKey.class), eq(DEFAULT_AMOUNT));
    }

    @Test
    public void testNoNumber() throws Exception {
        LeakyBucketService service = mock(LeakyBucketService.class);
        when(service.add(any(LeakyBucketKey.class), eq(DEFAULT_AMOUNT))).thenReturn(true);
        final LeakyBucketVoter voter = new LeakyBucketVoter(service, keyFactory, DEFAULT_AMOUNT);
        final Authentication authentication = mock(Authentication.class);
        final Object securedObject = mock(Object.class);
        assertEquals(AccessDecisionVoter.ACCESS_GRANTED, voter.vote(authentication, securedObject,
                SecurityConfig.createList(LeakyBucketVoter.PREFIX + "#A")));
        verify(service, times(1)).add(any(LeakyBucketKey.class), eq(DEFAULT_AMOUNT));
    }

    @Test
    public void testNegativeNumber() throws Exception {
        LeakyBucketService service = mock(LeakyBucketService.class);
        when(service.add(any(LeakyBucketKey.class), eq(DEFAULT_AMOUNT))).thenReturn(true);
        final LeakyBucketVoter voter = new LeakyBucketVoter(service, keyFactory, DEFAULT_AMOUNT);
        final Authentication authentication = mock(Authentication.class);
        final Object securedObject = mock(Object.class);

        assertEquals(AccessDecisionVoter.ACCESS_GRANTED, voter.vote(authentication, securedObject,
                SecurityConfig.createList(LeakyBucketVoter.PREFIX + "#" + (-DEFAULT_AMOUNT))));
        verify(service, never()).add(any(LeakyBucketKey.class), eq(DEFAULT_AMOUNT));
    }

    @Test
    public void testEmptyNumber() throws Exception {
        LeakyBucketService service = mock(LeakyBucketService.class);
        when(service.add(any(LeakyBucketKey.class), eq(DEFAULT_AMOUNT))).thenReturn(true);
        final LeakyBucketVoter voter = new LeakyBucketVoter(service, keyFactory, DEFAULT_AMOUNT);
        final Authentication authentication = mock(Authentication.class);
        final Object securedObject = mock(Object.class);

        assertEquals(AccessDecisionVoter.ACCESS_GRANTED, voter.vote(authentication, securedObject,
                SecurityConfig.createList(LeakyBucketVoter.PREFIX + "#")));
        verify(service, times(1)).add(any(LeakyBucketKey.class), eq(DEFAULT_AMOUNT));
    }

    @Test
    @SuppressWarnings("unchecked")
    public void testSupportsConfigAttribute() {
        final LeakyBucketVoter voter = new LeakyBucketVoter(mock(LeakyBucketService.class), keyFactory,
                DEFAULT_AMOUNT);
        assertEquals(true, voter.supports(new SecurityConfig(LeakyBucketVoter.PREFIX + "ANY_SUFFIX")));
        assertEquals(false, voter.supports(new SecurityConfig("NOT" + LeakyBucketVoter.PREFIX + "ANY_SUFFIX")));
        assertEquals(false, voter.supports(new ConfigAttribute() {
            @Override
            public String getAttribute() {
                return null;
            }
        }));
    }

}