예제 #1
1
  public void testHeadNotPopular() throws Exception {
    VersionCounts versionCounts = VersionCounts.make();

    VoteBlock vb1 = makeVoteBlock("http://test.com/foo1");
    byte[] hash1 = addVersion(vb1, "content 1 for foo1");
    byte[] hash2 = addVersion(vb1, "content 2 for foo1");

    VoteBlock vb2 = makeVoteBlock("http://test.com/foo1");
    addVersion(vb2, "content 1 for foo1");
    addVersion(vb2, "content 2 for foo1");

    VoteBlock vb3 = makeVoteBlock("http://test.com/foo1");
    addVersion(vb3, "content 3 for foo1");
    addVersion(vb3, "content 2 for foo1");

    versionCounts.vote(vb1, participant1);
    versionCounts.vote(vb2, participant2);
    versionCounts.vote(vb3, participant3);

    Map<ParticipantUserData, HashResult> repairCandidates;
    repairCandidates = versionCounts.getRepairCandidates(0);
    assertSameElements(
        SetUtil.set(participant1, participant2, participant3), repairCandidates.keySet());

    repairCandidates = versionCounts.getRepairCandidates(1);
    assertSameElements(
        SetUtil.set(participant1, participant2, participant3), repairCandidates.keySet());

    repairCandidates = versionCounts.getRepairCandidates(2);
    assertSameElements(SetUtil.set(participant1, participant2), repairCandidates.keySet());

    repairCandidates = versionCounts.getRepairCandidates(3);
    assertEmpty(repairCandidates.keySet());
  }
예제 #2
0
  public void testMultipleIdenticalVersions() throws Exception {
    VersionCounts versionCounts = VersionCounts.make();

    VoteBlock vb1 = makeVoteBlock("http://test.com/foo1");
    byte[] hash1 = addVersion(vb1, "content 1 for foo1");
    byte[] hash2 = addVersion(vb1, "content 2 for foo1");

    VoteBlock vb2 = makeVoteBlock("http://test.com/foo1");
    addVersion(vb2, "content 1 for foo1");
    addVersion(vb2, "content 1 for foo1");
    addVersion(vb2, "content 1 for foo1");
    addVersion(vb2, "content 1 for foo1");
    addVersion(vb2, "content 2 for foo1");

    VoteBlock vb3 = makeVoteBlock("http://test.com/foo1");
    addVersion(vb3, "content 1 for foo1");
    addVersion(vb3, "content 2 for foo1");
    addVersion(vb3, "content 2 for foo1");
    addVersion(vb3, "content 2 for foo1");
    addVersion(vb3, "content 2 for foo1");

    versionCounts.vote(vb1, participant1);
    versionCounts.vote(vb2, participant2);
    versionCounts.vote(vb3, participant3);

    Map<ParticipantUserData, HashResult> repairCandidates;
    repairCandidates = versionCounts.getRepairCandidates(2);
    assertSameElements(
        SetUtil.set(participant1, participant2, participant3), repairCandidates.keySet());

    // With only three candidates, no version should reach a threshold
    // of 4, unless counting multiples is wrong.
    repairCandidates = versionCounts.getRepairCandidates(4);
    assertEmpty(repairCandidates.keySet());
  }
예제 #3
0
  public void testHeadNotAllowed() throws Exception {
    VersionCounts versionCounts = VersionCounts.make();

    VoteBlock vb1 = makeVoteBlock("http://test.com/foo1");
    byte[] hash1 = addVersion(vb1, "content 1 for foo1");
    byte[] hash2 = addVersion(vb1, "content 2 for foo1");

    versionCounts.vote(vb1, participant1);

    Map<ParticipantUserData, HashResult> repairCandidates;
    repairCandidates = versionCounts.getRepairCandidates(0);
    assertSameElements(SetUtil.set(participant1), repairCandidates.keySet());

    // Same, but with an excluded version that doesn't matter.
    repairCandidates = versionCounts.getRepairCandidates(0, SetUtil.set(HashResult.make(hash2)));
    assertSameElements(SetUtil.set(participant1), repairCandidates.keySet());

    // Same, but with an excluded version that does matter
    repairCandidates = versionCounts.getRepairCandidates(0, SetUtil.set(HashResult.make(hash1)));
    assertEmpty(repairCandidates);
  }
예제 #4
0
  public void testSortedRepairCandidates() throws Exception {
    VersionCounts versionCounts = VersionCounts.make();

    VoteBlock vb1 = makeVoteBlock("http://test.com/foo1");
    addVersion(vb1, "content 1 for foo1");

    VoteBlock vb2 = makeVoteBlock("http://test.com/foo1");
    addVersion(vb2, "content 2 for foo1");

    VoteBlock vb3 = makeVoteBlock("http://test.com/foo1");
    addVersion(vb3, "content 3 for foo1");
    addVersion(vb3, "content 2 for foo1");

    versionCounts.vote(vb1, participant1);
    versionCounts.vote(vb2, participant2);
    versionCounts.vote(vb3, participant3);

    Map<Integer, Collection<ParticipantUserData>> repairCandidates;

    repairCandidates = versionCounts.getSortedRepairCandidatesMap(2);
    assertEquals(SetUtil.set(2), repairCandidates.keySet());
    assertSameElements(SetUtil.set(participant2), repairCandidates.get(2));
    assertEquals(ListUtil.list(participant2), versionCounts.getSortedRepairCandidates(2));

    repairCandidates = versionCounts.getSortedRepairCandidatesMap(1);
    assertIsomorphic(ListUtil.list(2, 1), repairCandidates.keySet());
    assertSameElements(SetUtil.set(participant2), repairCandidates.get(2));
    assertSameElements(SetUtil.set(participant1, participant3), repairCandidates.get(1));

    List<ParticipantUserData> lst = versionCounts.getSortedRepairCandidates(1);
    assertTrue(
        "" + lst,
        (lst.equals(ListUtil.list(participant2, participant1, participant3))
            || lst.equals(ListUtil.list(participant2, participant3, participant1))));

    assertEmpty(versionCounts.getSortedRepairCandidatesMap(4));
    assertEmpty(versionCounts.getSortedRepairCandidates(4));
  }
예제 #5
0
 public void testConstruct() throws Exception {
   VersionCounts versionCounts = VersionCounts.make();
   Map<ParticipantUserData, HashResult> repairCandidates;
   repairCandidates = versionCounts.getRepairCandidates(0);
   assertEmpty(repairCandidates);
 }