Arithmetic preprocessing
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3 changed files with 442 additions and 124 deletions
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@ -3,15 +3,12 @@ package interpreter
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import org.junit.jupiter.api.Assertions.assertEquals
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import org.junit.jupiter.api.Nested
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import org.junit.jupiter.api.Test
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import prolog.ast.arithmetic.Integer
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import prolog.ast.terms.Atom
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import prolog.ast.terms.CompoundTerm
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import prolog.ast.terms.Term
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import prolog.builtins.Conjunction
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import prolog.builtins.Disjunction
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import prolog.builtins.Cut
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import prolog.builtins.Fail
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import prolog.builtins.True
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import prolog.builtins.Not
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import prolog.ast.terms.Variable
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import prolog.builtins.*
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class PreprocessorTests {
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class OpenPreprocessor : Preprocessor() {
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@ -20,11 +17,318 @@ class PreprocessorTests {
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}
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}
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companion object {
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fun test(tests: Map<Term, Term>) {
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for ((input, expected) in tests) {
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val result = OpenPreprocessor().preprocess(input)
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assertEquals(expected, result, "Expected preprocessed")
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assertEquals(expected::class, result::class, "Expected same class")
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}
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}
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}
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@Nested
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class `Arithmetic operators` {
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@Test
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fun `evaluates to different`() {
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assertEquals(1, 2)
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test(
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mapOf(
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Atom("=\\=") to Atom("=\\="),
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CompoundTerm(Atom("=\\="), emptyList()) to CompoundTerm(Atom("=\\="), emptyList()),
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Atom("EvaluatesToDifferent") to Atom("EvaluatesToDifferent"),
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CompoundTerm(Atom("EvaluatesToDifferent"), emptyList()) to CompoundTerm(
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Atom("EvaluatesToDifferent"),
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emptyList()
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),
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CompoundTerm(Atom("=\\="), listOf(Atom("a"))) to CompoundTerm(
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Atom("=\\="),
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listOf(Atom("a"))
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),
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CompoundTerm(Atom("=\\="), listOf(Integer(1))) to CompoundTerm(
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Atom("=\\="),
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listOf(Integer(1))
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),
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CompoundTerm(Atom("=\\="), listOf(Atom("=\\="))) to CompoundTerm(
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Atom("=\\="),
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listOf(Atom("=\\="))
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),
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CompoundTerm(Atom("=\\="), listOf(Integer(1), Integer(2))) to EvaluatesToDifferent(
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Integer(1), Integer(2)
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)
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)
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)
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}
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@Test
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fun `evaluates to`() {
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test(
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mapOf(
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Atom("=:=") to Atom("=:="),
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CompoundTerm(Atom("=:="), emptyList()) to CompoundTerm(Atom("=:="), emptyList()),
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Atom("EvaluatesTo") to Atom("EvaluatesTo"),
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CompoundTerm(Atom("EvaluatesTo"), emptyList()) to CompoundTerm(
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Atom("EvaluatesTo"),
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emptyList()
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),
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CompoundTerm(Atom("=:="), listOf(Atom("a"))) to CompoundTerm(
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Atom("=:="),
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listOf(Atom("a"))
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),
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CompoundTerm(Atom("=:="), listOf(Atom("=:="))) to CompoundTerm(
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Atom("=:="),
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listOf(Atom("=:="))
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),
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CompoundTerm(Atom("=:="), listOf(Integer(1), Integer(2))) to EvaluatesTo(
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Integer(1), Integer(2)
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)
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)
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)
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}
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@Test
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fun `is`() {
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test(
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mapOf(
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Atom("is") to Atom("is"),
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CompoundTerm(Atom("is"), emptyList()) to CompoundTerm(Atom("is"), emptyList()),
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Atom("Is") to Atom("Is"),
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CompoundTerm(Atom("Is"), emptyList()) to CompoundTerm(Atom("Is"), emptyList()),
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CompoundTerm(Atom("is"), listOf(Atom("a"))) to CompoundTerm(
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Atom("is"),
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listOf(Atom("a"))
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),
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CompoundTerm(Atom("is"), listOf(Integer(1))) to CompoundTerm(
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Atom("is"),
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listOf(Integer(1))
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),
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CompoundTerm(Atom("is"), listOf(Atom("is"))) to CompoundTerm(
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Atom("is"),
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listOf(Atom("is"))
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),
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CompoundTerm(Atom("is"), listOf(Integer(1), Integer(2))) to Is(
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Integer(1), Integer(2)
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)
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)
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)
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}
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@Test
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fun `negate and subtract`() {
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test(
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mapOf(
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Atom("-") to Atom("-"),
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CompoundTerm(Atom("-"), emptyList()) to CompoundTerm(Atom("-"), emptyList()),
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Atom("Negate") to Atom("Negate"),
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CompoundTerm(Atom("Negate"), emptyList()) to CompoundTerm(
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Atom("Negate"),
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emptyList()
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),
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CompoundTerm(Atom("-"), listOf(Atom("a"))) to CompoundTerm(
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Atom("-"),
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listOf(Atom("a"))
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),
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CompoundTerm(Atom("-"), listOf(Integer(1))) to Negate(Integer(1)),
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CompoundTerm(Atom("-"), listOf(Atom("-"))) to CompoundTerm(
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Atom("-"),
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listOf(Atom("-"))
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),
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CompoundTerm(Atom("-"), listOf(Integer(1), Integer(2))) to Subtract(
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Integer(1), Integer(2)
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),
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CompoundTerm(Atom("-"), listOf(Atom("1"), Atom("2"))) to CompoundTerm(
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Atom("-"),
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listOf(Atom("1"), Atom("2"))
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),
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CompoundTerm(Atom("-"), listOf(Integer(1), Integer(2), Integer(3))) to CompoundTerm(
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Atom("-"),
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listOf(Integer(1), Integer(2), Integer(3))
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)
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)
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)
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}
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@Test
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fun `positive and add`() {
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test(
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mapOf(
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Atom("+") to Atom("+"),
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CompoundTerm(Atom("+"), emptyList()) to CompoundTerm(Atom("+"), emptyList()),
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Atom("Positive") to Atom("Positive"),
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CompoundTerm(Atom("Positive"), emptyList()) to CompoundTerm(
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Atom("Positive"),
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emptyList()
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),
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CompoundTerm(Atom("+"), listOf(Atom("a"))) to CompoundTerm(
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Atom("+"),
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listOf(Atom("a"))
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),
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CompoundTerm(Atom("+"), listOf(Integer(1))) to Positive(Integer(1)),
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CompoundTerm(Atom("+"), listOf(Atom("+"))) to CompoundTerm(
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Atom("+"),
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listOf(Atom("+"))
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),
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CompoundTerm(Atom("+"), listOf(Integer(1), Integer(2))) to Add(
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Integer(1), Integer(2)
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),
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CompoundTerm(Atom("+"), listOf(Atom("1"), Atom("2"))) to CompoundTerm(
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Atom("+"),
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listOf(Atom("1"), Atom("2"))
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),
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CompoundTerm(Atom("+"), listOf(Integer(1), Integer(2), Integer(3))) to CompoundTerm(
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Atom("+"),
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listOf(Integer(1), Integer(2), Integer(3))
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)
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)
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)
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}
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@Test
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fun multiply() {
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test(
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mapOf(
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Atom("*") to Atom("*"),
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CompoundTerm(Atom("*"), emptyList()) to CompoundTerm(Atom("*"), emptyList()),
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Atom("Multiply") to Atom("Multiply"),
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CompoundTerm(Atom("Multiply"), emptyList()) to CompoundTerm(
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Atom("Multiply"),
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emptyList()
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),
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CompoundTerm(Atom("*"), listOf(Atom("a"))) to CompoundTerm(
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Atom("*"),
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listOf(Atom("a"))
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),
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CompoundTerm(Atom("*"), listOf(Integer(1))) to CompoundTerm(Atom("*"), listOf(Integer(1))),
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CompoundTerm(Atom("*"), listOf(Atom("*"))) to CompoundTerm(
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Atom("*"),
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listOf(Atom("*"))
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),
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CompoundTerm(Atom("*"), listOf(Integer(1), Integer(2))) to Multiply(
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Integer(1), Integer(2)
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),
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CompoundTerm(Atom("*"), listOf(Atom("1"), Atom("2"))) to CompoundTerm(
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Atom("*"),
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listOf(Atom("1"), Atom("2"))
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),
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CompoundTerm(Atom("*"), listOf(Integer(1), Integer(2), Integer(3))) to CompoundTerm(
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Atom("*"),
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listOf(Integer(1), Integer(2), Integer(3))
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)
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)
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)
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}
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@Test
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fun divide() {
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test(
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mapOf(
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Atom("/") to Atom("/"),
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CompoundTerm(Atom("/"), emptyList()) to CompoundTerm(Atom("/"), emptyList()),
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Atom("Divide") to Atom("Divide"),
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CompoundTerm(Atom("Divide"), emptyList()) to CompoundTerm(
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Atom("Divide"),
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emptyList()
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),
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CompoundTerm(Atom("/"), listOf(Atom("a"))) to CompoundTerm(
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Atom("/"),
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listOf(Atom("a"))
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),
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CompoundTerm(Atom("/"), listOf(Integer(1))) to CompoundTerm(Atom("/"), listOf(Integer(1))),
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CompoundTerm(Atom("/"), listOf(Atom("/"))) to CompoundTerm(
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Atom("/"),
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listOf(Atom("/"))
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),
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CompoundTerm(Atom("/"), listOf(Integer(1), Integer(2))) to Divide(
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Integer(1), Integer(2)
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),
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CompoundTerm(Atom("/"), listOf(Atom("1"), Atom("2"))) to CompoundTerm(
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Atom("/"),
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listOf(Atom("1"), Atom("2"))
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),
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CompoundTerm(Atom("/"), listOf(Integer(1), Integer(2), Integer(3))) to CompoundTerm(
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Atom("/"),
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listOf(Integer(1), Integer(2), Integer(3))
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)
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)
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)
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}
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@Test
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fun between() {
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test(
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mapOf(
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Atom("between") to Atom("between"),
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CompoundTerm(Atom("between"), emptyList()) to CompoundTerm(
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Atom("between"),
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emptyList()
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),
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Atom("Between") to Atom("Between"),
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CompoundTerm(Atom("Between"), emptyList()) to CompoundTerm(
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Atom("Between"),
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emptyList()
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),
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CompoundTerm(Atom("between"), listOf(Atom("a"))) to CompoundTerm(
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Atom("between"),
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listOf(Atom("a"))
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),
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CompoundTerm(Atom("between"), listOf(Integer(1))) to CompoundTerm(
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Atom("between"),
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listOf(Integer(1))
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),
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CompoundTerm(Atom("between"), listOf(Atom("between"))) to CompoundTerm(
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Atom("between"),
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listOf(Atom("between"))
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),
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CompoundTerm(Atom("between"), listOf(Integer(1), Integer(2))) to CompoundTerm(
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Atom("between"),
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listOf(Integer(1), Integer(2))
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),
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CompoundTerm(Atom("between"), listOf(Integer(1), Integer(2), Integer(3))) to Between(
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Integer(1), Integer(2), Integer(3)
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),
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)
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)
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}
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@Test
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fun `fun combinations`() {
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/*
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* [X - 1] is [(1 + 2) * ((12 / 3) - 0)]
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* should return
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* X = 13
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*/
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val sum_ = CompoundTerm(Atom("+"), listOf(Integer(1), Integer(2)))
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val sum = Add(Integer(1), Integer(2))
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val div_ = CompoundTerm(Atom("/"), listOf(Integer(12), Integer(3)))
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val div = Divide(Integer(12), Integer(3))
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val sub_ = CompoundTerm(Atom("-"), listOf(div_, Integer(0)))
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val sub = Subtract(div, Integer(0))
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val right_ = CompoundTerm(Atom("*"), listOf(sum_, sub_))
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val right = Multiply(sum, sub)
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val left_ = CompoundTerm(Atom("-"), listOf(Variable("X"), Integer(1)))
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val left = Subtract(Variable("X"), Integer(1))
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val expr_ = CompoundTerm(Atom("is"), listOf(left_, right_))
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val expr = Is(left, right)
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val result = OpenPreprocessor().preprocess(expr_)
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assertEquals(expr, result)
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assertEquals(Is::class, result::class)
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val `is` = result as Is
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assertEquals(left, `is`.number)
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assertEquals(Subtract::class, `is`.number::class)
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assertEquals(right, `is`.expr)
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assertEquals(Multiply::class, `is`.expr::class)
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val multiply = `is`.expr as Multiply
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assertEquals(sum, multiply.expr1)
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assertEquals(Add::class, multiply.expr1::class)
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}
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}
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@ -34,123 +338,99 @@ class PreprocessorTests {
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@Test
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fun fail() {
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val tests = mapOf(
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Atom("fail") to Fail,
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CompoundTerm(Atom("fail"), emptyList()) to Fail,
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Atom("Fail") to Atom("Fail"),
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CompoundTerm(Atom("Fail"), emptyList()) to CompoundTerm(Atom("Fail"), emptyList()),
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CompoundTerm(Atom("fail"), listOf(Atom("a"))) to CompoundTerm(Atom("fail"), listOf(Atom("a"))),
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CompoundTerm(Atom("fail"), listOf(Atom("fail"))) to CompoundTerm(Atom("fail"), listOf(Fail))
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test(
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mapOf(
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Atom("fail") to Fail,
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CompoundTerm(Atom("fail"), emptyList()) to Fail,
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Atom("Fail") to Atom("Fail"),
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CompoundTerm(Atom("Fail"), emptyList()) to CompoundTerm(Atom("Fail"), emptyList()),
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CompoundTerm(Atom("fail"), listOf(Atom("a"))) to CompoundTerm(Atom("fail"), listOf(Atom("a"))),
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CompoundTerm(Atom("fail"), listOf(Atom("fail"))) to CompoundTerm(Atom("fail"), listOf(Fail))
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)
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)
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for ((input, expected) in tests) {
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val result = preprocessor.preprocess(input)
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assertEquals(expected, result, "Expected preprocessed")
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assertEquals(expected::class, result::class, "Expected same class")
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}
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}
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@Test
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fun `true`() {
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val tests = mapOf(
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Atom("true") to True,
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CompoundTerm(Atom("true"), emptyList()) to True,
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Atom("True") to Atom("True"),
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CompoundTerm(Atom("True"), emptyList()) to CompoundTerm(Atom("True"), emptyList()),
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CompoundTerm(Atom("true"), listOf(Atom("a"))) to CompoundTerm(Atom("true"), listOf(Atom("a"))),
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CompoundTerm(Atom("true"), listOf(Atom("true"))) to CompoundTerm(Atom("true"), listOf(True))
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test(
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mapOf(
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Atom("true") to True,
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CompoundTerm(Atom("true"), emptyList()) to True,
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Atom("True") to Atom("True"),
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CompoundTerm(Atom("True"), emptyList()) to CompoundTerm(Atom("True"), emptyList()),
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CompoundTerm(Atom("true"), listOf(Atom("a"))) to CompoundTerm(Atom("true"), listOf(Atom("a"))),
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CompoundTerm(Atom("true"), listOf(Atom("true"))) to CompoundTerm(Atom("true"), listOf(True))
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)
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)
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for ((input, expected) in tests) {
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val result = preprocessor.preprocess(input)
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assertEquals(expected, result, "Expected preprocessed")
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assertEquals(expected::class, result::class, "Expected same class")
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}
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}
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@Test
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fun cut() {
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val tests = mapOf(
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Atom("!") to Cut(),
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CompoundTerm(Atom("!"), emptyList()) to Cut(),
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CompoundTerm(Atom("!"), listOf(Atom("a"))) to CompoundTerm(Atom("!"), listOf(Atom("a"))),
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CompoundTerm(Atom("!"), listOf(Atom("!"))) to CompoundTerm(Atom("!"), listOf(Cut()))
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test(
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mapOf(
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Atom("!") to Cut(),
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CompoundTerm(Atom("!"), emptyList()) to Cut(),
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CompoundTerm(Atom("!"), listOf(Atom("a"))) to CompoundTerm(Atom("!"), listOf(Atom("a"))),
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CompoundTerm(Atom("!"), listOf(Atom("!"))) to CompoundTerm(Atom("!"), listOf(Cut()))
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)
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)
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for ((input, expected) in tests) {
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val result = preprocessor.preprocess(input)
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assertEquals(expected, result, "Expected preprocessed")
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assertEquals(expected::class, result::class, "Expected same class")
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}
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}
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@Test
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fun conjunction() {
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val tests = mapOf(
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CompoundTerm(Atom(","), listOf(Atom("a"), Atom("b"))) to Conjunction(Atom("a"), Atom("b")),
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CompoundTerm(Atom(","), listOf(Atom("a"), Atom("b"), Atom("c"))) to CompoundTerm(
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Atom(","),
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listOf(Atom("a"), Atom("b"), Atom("c"))
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),
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// Nested conjunctions
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CompoundTerm(
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Atom(","),
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listOf(Atom("a"), CompoundTerm(Atom(","), listOf(Atom("b"), Atom("c"))))
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) to Conjunction(Atom("a"), Conjunction(Atom("b"), Atom("c"))),
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test(
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mapOf(
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CompoundTerm(Atom(","), listOf(Atom("a"), Atom("b"))) to Conjunction(Atom("a"), Atom("b")),
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CompoundTerm(Atom(","), listOf(Atom("a"), Atom("b"), Atom("c"))) to CompoundTerm(
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Atom(","),
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listOf(Atom("a"), Atom("b"), Atom("c"))
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),
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// Nested conjunctions
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CompoundTerm(
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Atom(","),
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listOf(Atom("a"), CompoundTerm(Atom(","), listOf(Atom("b"), Atom("c"))))
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) to Conjunction(Atom("a"), Conjunction(Atom("b"), Atom("c"))),
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)
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)
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for ((input, expected) in tests) {
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val result = preprocessor.preprocess(input)
|
||||
assertEquals(expected, result, "Expected preprocessed")
|
||||
assertEquals(expected::class, result::class, "Expected same class")
|
||||
}
|
||||
}
|
||||
|
||||
@Test
|
||||
fun disjunction() {
|
||||
val tests = mapOf(
|
||||
CompoundTerm(Atom(";"), listOf(Atom("a"), Atom("b"))) to Disjunction(Atom("a"), Atom("b")),
|
||||
CompoundTerm(Atom(";"), listOf(Atom("a"), Atom("b"), Atom("c"))) to CompoundTerm(
|
||||
Atom(";"),
|
||||
listOf(Atom("a"), Atom("b"), Atom("c"))
|
||||
),
|
||||
// Nested disjunctions
|
||||
CompoundTerm(
|
||||
Atom(";"),
|
||||
listOf(Atom("a"), CompoundTerm(Atom(";"), listOf(Atom("b"), Atom("c"))))
|
||||
) to Disjunction(Atom("a"), Disjunction(Atom("b"), Atom("c"))),
|
||||
test(
|
||||
mapOf(
|
||||
CompoundTerm(Atom(";"), listOf(Atom("a"), Atom("b"))) to Disjunction(Atom("a"), Atom("b")),
|
||||
CompoundTerm(Atom(";"), listOf(Atom("a"), Atom("b"), Atom("c"))) to CompoundTerm(
|
||||
Atom(";"),
|
||||
listOf(Atom("a"), Atom("b"), Atom("c"))
|
||||
),
|
||||
// Nested disjunctions
|
||||
CompoundTerm(
|
||||
Atom(";"),
|
||||
listOf(Atom("a"), CompoundTerm(Atom(";"), listOf(Atom("b"), Atom("c"))))
|
||||
) to Disjunction(Atom("a"), Disjunction(Atom("b"), Atom("c"))),
|
||||
)
|
||||
)
|
||||
|
||||
for ((input, expected) in tests) {
|
||||
val result = preprocessor.preprocess(input)
|
||||
assertEquals(expected, result, "Expected preprocessed")
|
||||
assertEquals(expected::class, result::class, "Expected same class")
|
||||
}
|
||||
}
|
||||
|
||||
@Test
|
||||
fun not() {
|
||||
val tests = mapOf(
|
||||
CompoundTerm(Atom("\\+"), listOf(Atom("a"))) to Not(Atom("a")),
|
||||
CompoundTerm(Atom("\\+"), listOf(Atom("a"), Atom("b"))) to CompoundTerm(
|
||||
Atom("\\+"),
|
||||
listOf(Atom("a"), Atom("b"))
|
||||
),
|
||||
// Nested not
|
||||
CompoundTerm(
|
||||
Atom("foo"),
|
||||
listOf(
|
||||
Atom("bar"),
|
||||
CompoundTerm(Atom("\\+"), listOf(CompoundTerm(Atom("\\+"), listOf(Atom("baz")))))
|
||||
)
|
||||
) to CompoundTerm(Atom("foo"), listOf(Atom("bar"), Not(Not(Atom("baz"))))),
|
||||
test(
|
||||
mapOf(
|
||||
CompoundTerm(Atom("\\+"), listOf(Atom("a"))) to Not(Atom("a")),
|
||||
CompoundTerm(Atom("\\+"), listOf(Atom("a"), Atom("b"))) to CompoundTerm(
|
||||
Atom("\\+"),
|
||||
listOf(Atom("a"), Atom("b"))
|
||||
),
|
||||
// Nested not
|
||||
CompoundTerm(
|
||||
Atom("foo"),
|
||||
listOf(
|
||||
Atom("bar"),
|
||||
CompoundTerm(Atom("\\+"), listOf(CompoundTerm(Atom("\\+"), listOf(Atom("baz")))))
|
||||
)
|
||||
) to CompoundTerm(Atom("foo"), listOf(Atom("bar"), Not(Not(Atom("baz"))))),
|
||||
)
|
||||
)
|
||||
|
||||
for ((input, expected) in tests) {
|
||||
val result = preprocessor.preprocess(input)
|
||||
assertEquals(expected, result, "Expected preprocessed")
|
||||
assertEquals(expected::class, result::class, "Expected same class")
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
|
|
|||
Reference in a new issue