commonMain.it.unibo.tuprolog.solve.TestCutImpl.kt Maven / Gradle / Ivy

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Common testing facilities for 2P-Kt-based logic solvers

There is a newer version: 1.0.4

package it.unibo.tuprolog.solve

import it.unibo.tuprolog.dsl.theory.logicProgramming

internal class TestCutImpl(private val solverFactory: SolverFactory) : TestCut {
    override fun testCut() {
        logicProgramming {
            val solver = solverFactory.solverWithDefaultBuiltins()

            val query = atomOf("!")
            val solutions = solver.solve(query, mediumDuration).toList()

            assertSolutionEquals(
                kotlin.collections.listOf(query.yes()),
                solutions,
            )
        }
    }

    override fun testCutFailTrue() {
        logicProgramming {
            val solver = solverFactory.solverWithDefaultBuiltins()

            val query = ("!" and fail or true)
            val solutions = solver.solve(query, mediumDuration).toList()

            assertSolutionEquals(
                kotlin.collections.listOf(query.no()),
                solutions,
            )
        }
    }

    override fun testCallCutFailTrue() {
        logicProgramming {
            val solver = solverFactory.solverWithDefaultBuiltins()

            val query = (call("!") and fail or true)
            val solutions = solver.solve(query, mediumDuration).toList()

            assertSolutionEquals(
                kotlin.collections.listOf(query.yes()),
                solutions,
            )
        }
    }
}