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GroupsV2 state mapping.

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This commit is contained in:
Alan Evans
2020-04-09 18:09:47 -03:00
committed by Greyson Parrelli
parent 4e0279200f
commit 7bf090fdab
6 changed files with 361 additions and 0 deletions
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45
app/src/test/java/org/thoughtcrime/securesms/groups/v2/processing/GlobalGroupStateTest.java Normal file
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package org.thoughtcrime.securesms.groups.v2.processing;
import org.junit.Test;
import org.signal.storageservice.protos.groups.local.DecryptedGroup;
import org.signal.storageservice.protos.groups.local.DecryptedGroupChange;
import static java.util.Arrays.asList;
import static java.util.Collections.emptyList;
import static org.junit.Assert.assertEquals;
public final class GlobalGroupStateTest {
@Test(expected = AssertionError.class)
public void cannot_ask_latestVersionNumber_of_empty_state() {
GlobalGroupState emptyState = new GlobalGroupState(null, emptyList());
emptyState.getLatestVersionNumber();
}
@Test
public void latestVersionNumber_of_state_and_empty_list() {
GlobalGroupState emptyState = new GlobalGroupState(state(10), emptyList());
assertEquals(10, emptyState.getLatestVersionNumber());
}
@Test
public void latestVersionNumber_of_state_and_list() {
GlobalGroupState emptyState = new GlobalGroupState(state(2), asList(logEntry(3), logEntry(4)));
assertEquals(4, emptyState.getLatestVersionNumber());
}
private static GroupLogEntry logEntry(int version) {
return new GroupLogEntry(state(version), change(version));
}
private static DecryptedGroup state(int version) {
return DecryptedGroup.newBuilder().setVersion(version).build();
}
private static DecryptedGroupChange change(int version) {
return DecryptedGroupChange.newBuilder().setVersion(version).build();
}
}

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app/src/test/java/org/thoughtcrime/securesms/groups/v2/processing/GroupStateMapperTest.java Normal file
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package org.thoughtcrime.securesms.groups.v2.processing;
import org.junit.Test;
import org.signal.storageservice.protos.groups.local.DecryptedGroup;
import org.signal.storageservice.protos.groups.local.DecryptedGroupChange;
import static java.util.Arrays.asList;
import static java.util.Collections.emptyList;
import static java.util.Collections.singletonList;
import static org.hamcrest.CoreMatchers.is;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertNull;
import static org.junit.Assert.assertSame;
import static org.junit.Assert.assertThat;
import static org.junit.Assert.assertTrue;
import static org.thoughtcrime.securesms.groups.v2.processing.GroupStateMapper.LATEST;
public final class GroupStateMapperTest {
@Test
public void unknown_group_with_no_states_to_update() {
AdvanceGroupStateResult advanceGroupStateResult = GroupStateMapper.partiallyAdvanceGroupState(new GlobalGroupState(null, emptyList()), 10);
assertThat(advanceGroupStateResult.getProcessedLogEntries(), is(emptyList()));
assertTrue(advanceGroupStateResult.getNewGlobalGroupState().getHistory().isEmpty());
assertNull(advanceGroupStateResult.getNewGlobalGroupState().getLocalState());
}
@Test
public void known_group_with_no_states_to_update() {
DecryptedGroup currentState = state(0);
AdvanceGroupStateResult advanceGroupStateResult = GroupStateMapper.partiallyAdvanceGroupState(new GlobalGroupState(currentState, emptyList()), 10);
assertThat(advanceGroupStateResult.getProcessedLogEntries(), is(emptyList()));
assertTrue(advanceGroupStateResult.getNewGlobalGroupState().getHistory().isEmpty());
assertSame(currentState, advanceGroupStateResult.getNewGlobalGroupState().getLocalState());
}
@Test
public void unknown_group_single_state_to_update() {
GroupLogEntry log0 = logEntry(0);
AdvanceGroupStateResult advanceGroupStateResult = GroupStateMapper.partiallyAdvanceGroupState(new GlobalGroupState(null, singletonList(log0)), 10);
assertThat(advanceGroupStateResult.getProcessedLogEntries(), is(singletonList(log0)));
assertTrue(advanceGroupStateResult.getNewGlobalGroupState().getHistory().isEmpty());
assertEquals(log0.getGroup(), advanceGroupStateResult.getNewGlobalGroupState().getLocalState());
}
@Test
public void known_group_single_state_to_update() {
DecryptedGroup currentState = state(0);
GroupLogEntry log1 = logEntry(1);
AdvanceGroupStateResult advanceGroupStateResult = GroupStateMapper.partiallyAdvanceGroupState(new GlobalGroupState(currentState, singletonList(log1)), 1);
assertThat(advanceGroupStateResult.getProcessedLogEntries(), is(singletonList(log1)));
assertTrue(advanceGroupStateResult.getNewGlobalGroupState().getHistory().isEmpty());
assertEquals(log1.getGroup(), advanceGroupStateResult.getNewGlobalGroupState().getLocalState());
}
@Test
public void known_group_two_states_to_update() {
DecryptedGroup currentState = state(0);
GroupLogEntry log1 = logEntry(1);
GroupLogEntry log2 = logEntry(2);
AdvanceGroupStateResult advanceGroupStateResult = GroupStateMapper.partiallyAdvanceGroupState(new GlobalGroupState(currentState, asList(log1, log2)), 2);
assertThat(advanceGroupStateResult.getProcessedLogEntries(), is(asList(log1, log2)));
assertTrue(advanceGroupStateResult.getNewGlobalGroupState().getHistory().isEmpty());
assertEquals(log2.getGroup(), advanceGroupStateResult.getNewGlobalGroupState().getLocalState());
}
@Test
public void known_group_two_states_to_update_already_on_one() {
DecryptedGroup currentState = state(1);
GroupLogEntry log1 = logEntry(1);
GroupLogEntry log2 = logEntry(2);
AdvanceGroupStateResult advanceGroupStateResult = GroupStateMapper.partiallyAdvanceGroupState(new GlobalGroupState(currentState, asList(log1, log2)), 2);
assertThat(advanceGroupStateResult.getProcessedLogEntries(), is(singletonList(log2)));
assertTrue(advanceGroupStateResult.getNewGlobalGroupState().getHistory().isEmpty());
assertEquals(log2.getGroup(), advanceGroupStateResult.getNewGlobalGroupState().getLocalState());
}
@Test
public void known_group_three_states_to_update_stop_at_2() {
DecryptedGroup currentState = state(0);
GroupLogEntry log1 = logEntry(1);
GroupLogEntry log2 = logEntry(2);
GroupLogEntry log3 = logEntry(3);
AdvanceGroupStateResult advanceGroupStateResult = GroupStateMapper.partiallyAdvanceGroupState(new GlobalGroupState(currentState, asList(log1, log2, log3)), 2);
assertThat(advanceGroupStateResult.getProcessedLogEntries(), is(asList(log1, log2)));
assertNewState(new GlobalGroupState(log2.getGroup(), singletonList(log3)), advanceGroupStateResult.getNewGlobalGroupState());
assertEquals(log2.getGroup(), advanceGroupStateResult.getNewGlobalGroupState().getLocalState());
}
@Test
public void known_group_three_states_to_update_update_latest() {
DecryptedGroup currentState = state(0);
GroupLogEntry log1 = logEntry(1);
GroupLogEntry log2 = logEntry(2);
GroupLogEntry log3 = logEntry(3);
AdvanceGroupStateResult advanceGroupStateResult = GroupStateMapper.partiallyAdvanceGroupState(new GlobalGroupState(currentState, asList(log1, log2, log3)), LATEST);
assertThat(advanceGroupStateResult.getProcessedLogEntries(), is(asList(log1, log2, log3)));
assertNewState(new GlobalGroupState(log3.getGroup(), emptyList()), advanceGroupStateResult.getNewGlobalGroupState());
assertEquals(log3.getGroup(), advanceGroupStateResult.getNewGlobalGroupState().getLocalState());
}
@Test
public void apply_maximum_group_versions() {
DecryptedGroup currentState = state(Integer.MAX_VALUE - 2);
GroupLogEntry log1 = logEntry(Integer.MAX_VALUE - 1);
GroupLogEntry log2 = logEntry(Integer.MAX_VALUE);
AdvanceGroupStateResult advanceGroupStateResult = GroupStateMapper.partiallyAdvanceGroupState(new GlobalGroupState(currentState, asList(log1, log2)), LATEST);
assertThat(advanceGroupStateResult.getProcessedLogEntries(), is(asList(log1, log2)));
assertNewState(new GlobalGroupState(log2.getGroup(), emptyList()), advanceGroupStateResult.getNewGlobalGroupState());
assertEquals(log2.getGroup(), advanceGroupStateResult.getNewGlobalGroupState().getLocalState());
}
private static void assertNewState(GlobalGroupState expected, GlobalGroupState actual) {
assertEquals(expected.getLocalState(), actual.getLocalState());
assertThat(actual.getHistory(), is(expected.getHistory()));
}
private static GroupLogEntry logEntry(int version) {
return new GroupLogEntry(state(version), change(version));
}
private static DecryptedGroup state(int version) {
return DecryptedGroup.newBuilder().setVersion(version).build();
}
private static DecryptedGroupChange change(int version) {
return DecryptedGroupChange.newBuilder().setVersion(version).build();
}
}