Examples with NotExpr org.batfish.z3.expr.NotExpr used on opensource projects

Example 11 with NotExpr

use of org.batfish.z3.expr.NotExpr in project batfish by batfish.

the class SimplifierTest method testSimplifyIfStaticallyTrue.

/**
 * Test that an IF with antecedent statically FALSE, or consequent statically TRUE, or antecedent
 * statically equal to consequent simplifies to TRUE.
 */
@Test
public void testSimplifyIfStaticallyTrue() {
    BooleanExpr p1 = newAtom();
    // Antecedent is false
    assertThat(simplifyBooleanExpr(new IfExpr(FalseExpr.INSTANCE, newAtom())), equalTo(TrueExpr.INSTANCE));
    assertThat(simplifyBooleanExpr(new IfExpr(new NotExpr(new NotExpr(FalseExpr.INSTANCE)), newAtom())), equalTo(TrueExpr.INSTANCE));
    // Consequent is true
    assertThat(simplifyBooleanExpr(new IfExpr(newAtom(), TrueExpr.INSTANCE)), equalTo(TrueExpr.INSTANCE));
    assertThat(simplifyBooleanExpr(new IfExpr(newAtom(), new NotExpr(FalseExpr.INSTANCE))), equalTo(TrueExpr.INSTANCE));
    // Antecedent == Consequent
    assertThat(simplifyBooleanExpr(new IfExpr(p1, p1)), equalTo(TrueExpr.INSTANCE));
    assertThat(simplifyBooleanExpr(new IfExpr(new NotExpr(new NotExpr(p1)), p1)), equalTo(TrueExpr.INSTANCE));
}

Example 12 with NotExpr

use of org.batfish.z3.expr.NotExpr in project batfish by batfish.

the class DefaultTransitionGeneratorTest method testVisitPreOut.

@Test
public void testVisitPreOut() {
    SynthesizerInput input = MockSynthesizerInput.builder().setIpsByHostname(ImmutableMap.of(NODE1, ImmutableSet.of(IP1, IP2), NODE2, ImmutableSet.of(IP3, IP4))).build();
    Set<RuleStatement> rules = ImmutableSet.copyOf(DefaultTransitionGenerator.generateTransitions(input, ImmutableSet.of(PreOut.State.INSTANCE)));
    // PostInNotMine
    assertThat(rules, hasItem(new BasicRuleStatement(new NotExpr(HeaderSpaceMatchExpr.matchDstIp(ImmutableSet.of(new IpWildcard(IP1), new IpWildcard(IP2)))), ImmutableSet.of(new PostIn(NODE1)), new PreOut(NODE1))));
    assertThat(rules, hasItem(new BasicRuleStatement(new NotExpr(HeaderSpaceMatchExpr.matchDstIp(ImmutableSet.of(new IpWildcard(IP3), new IpWildcard(IP4)))), ImmutableSet.of(new PostIn(NODE2)), new PreOut(NODE2))));
}

Example 13 with NotExpr

use of org.batfish.z3.expr.NotExpr in project batfish by batfish.

the class IpSpaceBooleanExprTransformer method visitIpWildcardSetIpSpace.

@Override
public BooleanExpr visitIpWildcardSetIpSpace(IpWildcardSetIpSpace ipWildcardSetIpSpace) {
    BooleanExpr matchBlacklist = HeaderSpaceMatchExpr.matchIp(ipWildcardSetIpSpace.getBlacklist(), _useSrc, _useDst);
    BooleanExpr matchWhitelist = HeaderSpaceMatchExpr.matchIp(ipWildcardSetIpSpace.getWhitelist(), _useSrc, _useDst);
    return new AndExpr(ImmutableList.of(new NotExpr(matchBlacklist), matchWhitelist));
}