+ @Test
+ public void testRemoveFrom() {
+
+ replicatedLogImpl.append(new MockReplicatedLogEntry(2, 4, new MockPayload("E", 2)));
+ replicatedLogImpl.append(new MockReplicatedLogEntry(2, 5, new MockPayload("F", 3)));
+
+ assertEquals("dataSize", 9, replicatedLogImpl.dataSize());
+
+ long adjusted = replicatedLogImpl.removeFrom(4);
+ assertEquals("removeFrom - adjusted", 4, adjusted);
+ assertEquals("size", 4, replicatedLogImpl.size());
+ assertEquals("dataSize", 4, replicatedLogImpl.dataSize());
+
+ takeSnapshot(1);
+
+ adjusted = replicatedLogImpl.removeFrom(2);
+ assertEquals("removeFrom - adjusted", 1, adjusted);
+ assertEquals("size", 1, replicatedLogImpl.size());
+ assertEquals("dataSize", 1, replicatedLogImpl.dataSize());
+
+ assertEquals("removeFrom - adjusted", -1, replicatedLogImpl.removeFrom(0));
+ assertEquals("removeFrom - adjusted", -1, replicatedLogImpl.removeFrom(100));
+ }
+