/*
Copyright 2014 Google Inc. All Rights Reserved.
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 com.google.security.zynamics.reil.algorithms.mono2.registertracking;
import com.google.common.collect.Lists;
import com.google.common.collect.Sets;
import junit.framework.Assert;
import org.junit.Before;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.junit.runners.JUnit4;
import java.util.HashSet;
import java.util.Set;
@RunWith(JUnit4.class)
public class RegisterSetLatticeElementTest {
RegisterSetLatticeElement m_emptyRegisterSetLatticeElement;
RegisterSetLatticeElement m_fullRegisterSetLatticeElement;
Set<String> m_fullSet;
@Test
public void addAll() {
m_emptyRegisterSetLatticeElement.addAll(Lists.newArrayList(m_fullRegisterSetLatticeElement));
m_emptyRegisterSetLatticeElement.onInstructionExit();
Assert.assertTrue(m_emptyRegisterSetLatticeElement.getTaintedRegisters().containsAll(
m_fullRegisterSetLatticeElement.getTaintedRegisters()));
Assert.assertTrue(m_emptyRegisterSetLatticeElement.getUntaintedRegisters().containsAll(
m_fullRegisterSetLatticeElement.getUntaintedRegisters()));
Assert.assertTrue(m_emptyRegisterSetLatticeElement.getReadRegisters().containsAll(
m_fullRegisterSetLatticeElement.getReadRegisters()));
Assert.assertTrue(m_emptyRegisterSetLatticeElement.getUpdatedRegisters().containsAll(
m_fullRegisterSetLatticeElement.getUpdatedRegisters()));
}
@Test
public void addAllMultiple() {
final RegisterSetLatticeElement element1 =
new RegisterSetLatticeElement(Sets.newHashSet("register1"), Sets.newHashSet("register2"),
Sets.newHashSet("register3"), Sets.newHashSet("register4"),
Sets.newHashSet("register5"));
final RegisterSetLatticeElement element2 =
new RegisterSetLatticeElement(Sets.newHashSet("register6"), Sets.newHashSet("register7"),
Sets.newHashSet("register8"), Sets.newHashSet("register9"),
Sets.newHashSet("register10"));
m_emptyRegisterSetLatticeElement.addAll(Lists.newArrayList(element1, element2));
m_emptyRegisterSetLatticeElement.onInstructionExit();
Assert.assertTrue(m_emptyRegisterSetLatticeElement.getTaintedRegisters().containsAll(
Lists.newArrayList("register1", "register6")));
Assert.assertTrue(m_emptyRegisterSetLatticeElement.getUntaintedRegisters().containsAll(
Lists.newArrayList("register3", "register8")));
Assert.assertTrue(m_emptyRegisterSetLatticeElement.getReadRegisters().containsAll(
Lists.newArrayList("register4", "register9")));
Assert.assertTrue(m_emptyRegisterSetLatticeElement.getUpdatedRegisters().containsAll(
Lists.newArrayList("register5", "register10")));
}
@Test
public void copy() {
final RegisterSetLatticeElement copiedElement = m_fullRegisterSetLatticeElement.copy();
m_fullRegisterSetLatticeElement.onInstructionExit();
copiedElement.onInstructionExit();
Assert.assertTrue(copiedElement.getTaintedRegisters().containsAll(
m_fullRegisterSetLatticeElement.getTaintedRegisters()));
Assert.assertTrue(copiedElement.getUntaintedRegisters().containsAll(
m_fullRegisterSetLatticeElement.getUntaintedRegisters()));
Assert.assertTrue(copiedElement.getReadRegisters().containsAll(
m_fullRegisterSetLatticeElement.getReadRegisters()));
Assert.assertTrue(copiedElement.getUpdatedRegisters().containsAll(
m_fullRegisterSetLatticeElement.getUpdatedRegisters()));
}
@Test
public void isSmallerEqual() {
Assert.assertTrue(m_emptyRegisterSetLatticeElement
.isSmallerEqual(m_fullRegisterSetLatticeElement));
Assert.assertFalse(m_fullRegisterSetLatticeElement
.isSmallerEqual(m_emptyRegisterSetLatticeElement));
Assert.assertTrue(m_emptyRegisterSetLatticeElement
.isSmallerEqual(m_emptyRegisterSetLatticeElement));
Assert.assertTrue(m_fullRegisterSetLatticeElement
.isSmallerEqual(m_fullRegisterSetLatticeElement));
}
@Test
public void isTaintedRegister() {
Assert.assertTrue(m_fullRegisterSetLatticeElement.isTainted("eax"));
Assert.assertFalse(m_emptyRegisterSetLatticeElement.isTainted("eax"));
}
@Test
public void isTaintedRegisterCollection() {
Assert.assertTrue(m_fullRegisterSetLatticeElement.isTainted(m_fullSet));
Assert.assertFalse(m_emptyRegisterSetLatticeElement.isTainted(m_fullSet));
}
@Test
public void onInstructionExit() {
Assert.assertTrue(m_fullRegisterSetLatticeElement.getNewlyTaintedRegisters().isEmpty());
Assert.assertTrue(m_fullRegisterSetLatticeElement.getUntaintedRegisters().isEmpty());
Assert.assertTrue(m_fullRegisterSetLatticeElement.getReadRegisters().isEmpty());
Assert.assertTrue(m_fullRegisterSetLatticeElement.getUpdatedRegisters().isEmpty());
Assert.assertTrue(m_fullRegisterSetLatticeElement.getTaintedRegisters().containsAll(m_fullSet));
m_fullRegisterSetLatticeElement.onInstructionExit();
Assert.assertTrue(m_fullRegisterSetLatticeElement.getNewlyTaintedRegisters().containsAll(
m_fullSet));
Assert.assertTrue(m_fullRegisterSetLatticeElement.getUntaintedRegisters().isEmpty());
Assert.assertTrue(m_fullRegisterSetLatticeElement.getReadRegisters().containsAll(m_fullSet));
Assert.assertTrue(m_fullRegisterSetLatticeElement.getUpdatedRegisters().containsAll(m_fullSet));
Assert.assertTrue(m_fullRegisterSetLatticeElement.getTaintedRegisters().containsAll(m_fullSet));
}
@Before
public void setUp() {
m_emptyRegisterSetLatticeElement = new RegisterSetLatticeElement();
m_fullSet = Sets.newHashSet("eax", "ebx", "ecx", "edx", "esi");
m_fullRegisterSetLatticeElement =
new RegisterSetLatticeElement(m_fullSet, m_fullSet, new HashSet<String>(), m_fullSet,
m_fullSet);
}
@Test
public void taint() {
m_emptyRegisterSetLatticeElement.taint("eax");
Assert.assertTrue(m_emptyRegisterSetLatticeElement.getTaintedRegisters().contains("eax"));
m_emptyRegisterSetLatticeElement.onInstructionExit();
Assert.assertTrue(m_emptyRegisterSetLatticeElement.getNewlyTaintedRegisters().contains("eax"));
}
@Test
public void taintAll() {
m_emptyRegisterSetLatticeElement.taintAll(m_fullSet);
Assert
.assertTrue(m_emptyRegisterSetLatticeElement.getTaintedRegisters().containsAll(m_fullSet));
m_emptyRegisterSetLatticeElement.onInstructionExit();
Assert.assertTrue(m_emptyRegisterSetLatticeElement.getNewlyTaintedRegisters().containsAll(
m_fullSet));
}
@Test
public void testUpdatedSet() {
final RegisterSetLatticeElement element = new RegisterSetLatticeElement();
element.taint("eax");
element.taint("eax");
}
@Test
public void untaint() {
m_fullRegisterSetLatticeElement.untaint("eax");
Assert.assertFalse(m_fullRegisterSetLatticeElement.getTaintedRegisters().contains("eax"));
m_fullRegisterSetLatticeElement.onInstructionExit();
Assert.assertTrue(m_fullRegisterSetLatticeElement.getUntaintedRegisters().contains("eax"));
}
@Test
public void untaintAll() {
m_fullRegisterSetLatticeElement.untaintAll(m_fullSet);
Assert.assertTrue(m_fullRegisterSetLatticeElement.getTaintedRegisters().isEmpty());
m_fullRegisterSetLatticeElement.onInstructionExit();
Assert.assertTrue(m_fullRegisterSetLatticeElement.getUntaintedRegisters()
.containsAll(m_fullSet));
}
}