Examples with EQUIVALENCE com.sri.ai.grinder.library.FunctorConstants.EQUIVALENCE used on opensource projects

Example 1 with EQUIVALENCE

use of com.sri.ai.grinder.library.FunctorConstants.EQUIVALENCE in project aic-expresso by aic-sri-international.

the class AbstractEqualityConstraintTest method runCompleteSatisfiabilityTest.

/**
 * @param conjunction
 * @param expected
 */
private void runCompleteSatisfiabilityTest(String conjunction, Expression expected, TheoryTestingSupport theoryTestingSupport) {
    Context context = theoryTestingSupport.makeContextWithTestingInformation();
    for (Expression literal : And.getConjuncts(parse(conjunction))) {
        context = context.conjoin(literal, context);
        if (context.isContradiction()) {
            break;
        }
    }
    if (expected == null && !context.isContradiction()) {
        throw new AssertionError("Expected null but was <" + context + ">");
    } else if (expected != null && context.isContradiction()) {
        throw new AssertionError("Expected <" + expected + "> but was null");
    } else if (expected != null && !context.isContradiction() && !expected.equals(context)) {
        Simplifier interpreter = (e, c) -> theoryTestingSupport.getTheory().evaluate(e, c);
        // Simplifier interpreter = new Evaluator(theoryTestingSupport.getTheory());
        Expression equivalenceDefinition = apply(EQUIVALENCE, expected, context);
        Expression universallyQuantified = universallyQuantifyFreeVariables(equivalenceDefinition, context);
        Expression equivalent = interpreter.apply(universallyQuantified, context);
        if (equivalent.equals(FALSE)) {
            throw new Error("Expected <" + expected + "> but got <" + context + ">, which is not equivalent either");
        }
    }
}