3e0f9b8a
 Francisco Coelho
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using Test
include("ASPLang.jl")
using .ASPLang
@testset "malformed" begin
#
#
#
@test_throws "" parse_term("1a")
@test_throws "" parse_term("1+")
@test_throws "" parse_term("+")
@test_throws "" parse_term("(")
@test_throws "" parse_term(")")
#
# Spaces
#
@test_throws "" parse_term("1 1")
@test_throws "" parse_term("+ 1")
end
@testset "constants" begin
#
# NumberConstant
#
@test parse_term("1") == NumberConstant("1")
@test parse_term("11") == NumberConstant("11")
@test parse_term("+1") == NumberConstant("+1")
@test parse_term("+++1") == NumberConstant("+++1")
@test parse_term("-1") == Negated(NumberConstant("1"))
@test parse_term("- 11") == Negated(NumberConstant("11"))
@test parse_term("---1") == Negated(Negated(Negated(NumberConstant("1"))))
#
# SymbolicConstant
#
@test parse_term("a") == SymbolicConstant("a")
@test parse_term("aA") == SymbolicConstant("aA")
@test parse_term("a1") == SymbolicConstant("a1")
@test parse_term("a_1") == SymbolicConstant("a_1")
#
# StringConstant
#
@test parse_term("\"a\"") == StringConstant("a")
@test parse_term("\"aA\"") == StringConstant("aA")
@test parse_term("\"a_1\"") == StringConstant("a_1")
@test parse_term("\"a1\"") == StringConstant("a1")
@test parse_term("\"a 1\"") == StringConstant("a 1")
@test parse_term("\"A\"") == StringConstant("A")
@test parse_term("\"AA\"") == StringConstant("AA")
@test parse_term("\"A_1\"") == StringConstant("A_1")
@test parse_term("\"A1\"") == StringConstant("A1")
@test parse_term("\"A 1\"") == StringConstant("A 1")
@test parse_term("\"0\"") == StringConstant("0")
@test parse_term("\"0A\"") == StringConstant("0A")
@test parse_term("\"0_1\"") == StringConstant("0_1")
@test parse_term("\"01\"") == StringConstant("01")
@test parse_term("\"0 1\"") == StringConstant("0 1")
end
@testset "variables" begin
#
# Variable
#
@test parse_term("Ax") == Variable("Ax")
@test parse_term("A1") == Variable("A1")
@test parse_term("A_x") == Variable("A_x")
@test parse_term("_x") == Variable("_x")
@test parse_term("_1") == Variable("_1")
@test parse_term("__x") == Variable("__x")
end
@testset "basic arithmetic terms" begin
#
# Single Operations
#
@test parse_term("1+1") == Sum(Any[NumberConstant("1"), NumberConstant("1")])
@test parse_term("1-1") == Sum(Any[NumberConstant("1"), Negated(NumberConstant("1"))])
@test parse_term("1*1") == Product(Any[NumberConstant("1"), NumberConstant("1")])
@test parse_term("1/1") == Product(Any[NumberConstant("1"), Inverted(NumberConstant("1"))])
@test parse_term("1^1") == Power(Any[NumberConstant("1"), NumberConstant("1")])
#
# Simple Parenthesis
#
@test parse_term("(1)") == NumberConstant("1")
@test parse_term("(1+1)") == Sum(Any[NumberConstant("1"), NumberConstant("1")])
@test parse_term("(1-1)") == Sum(Any[NumberConstant("1"), Negated(NumberConstant("1"))])
@test parse_term("(1*1)") == Product(Any[NumberConstant("1"), NumberConstant("1")])
@test parse_term("(1/1)") == Product(Any[NumberConstant("1"), Inverted(NumberConstant("1"))])
@test parse_term("(1^1)") == Power(Any[NumberConstant("1"), NumberConstant("1")])
end
@testset "arithmetic associative rules" begin
@test parse_term("1 + 2 + 3") == Sum(Any[NumberConstant("1"), NumberConstant("2"), NumberConstant("3")])
@test parse_term("1 + (2 + 3)") == Sum(Any[NumberConstant("1"), Sum(Any[NumberConstant("2"), NumberConstant("3")])])
@test parse_term("(1 + 2) + 3") == Sum(Any[Sum(Any[NumberConstant("1"), NumberConstant("2")]), NumberConstant("3")])
#
# Default Associative Rules
#
@test parse_term("2 + 3 * 4") == Sum(Any[
NumberConstant("2"), Product(Any[NumberConstant("3"), NumberConstant("4")])])
@test parse_term("2 * 3 + 4") == Sum(Any[
Product(Any[NumberConstant("2"), NumberConstant("3")]), NumberConstant("4")])
end
@testset "functional terms" begin
@test parse_term("1 + 2 + 3") == Sum(Any[NumberConstant("1"), NumberConstant("2"), NumberConstant("3")])
@test parse_term("1 + (2 + 3)") == Sum(Any[NumberConstant("1"), Sum(Any[NumberConstant("2"), NumberConstant("3")])])
@test parse_term("(1 + 2) + 3") == Sum(Any[Sum(Any[NumberConstant("1"), NumberConstant("2")]), NumberConstant("3")])
#
# Functional Terms
#
@test parse_term("f()") == FunctionalTerm(Any[Functor("f")])
@test parse_term("f(1)") == FunctionalTerm(Any[Functor("f"), NumberConstant("1")])
@test parse_term("f(1,2)") == FunctionalTerm(Any[Functor("f"), NumberConstant("1"), NumberConstant("2")])
@test parse_term("f(1,g(2))") == FunctionalTerm(Any[Functor("f"), NumberConstant("1"), FunctionalTerm(Any[Functor("g"), NumberConstant("2")])])
end
@testset "predicate atoms" begin
#
# Predicate Atoms
#
@test parse_atom("p") == PredicateName("p")
@test parse_atom("p()") == PredicateAtom(Any[PredicateName("p")])
@test parse_atom("p(1)") == PredicateAtom(Any[PredicateName("p"), NumberConstant("1")])
@test parse_atom("p(1,2)") == PredicateAtom(Any[PredicateName("p"), NumberConstant("1"), NumberConstant("2")])
@test parse_atom("p(1,f(2))") == PredicateAtom(Any[PredicateName("p"), NumberConstant("1"), FunctionalTerm(Any[Functor("f"), NumberConstant("2")])])
end
@testset "negated atoms" begin
@test parse_atom("-p") == NegatedAtom(PredicateName("p"))
@test parse_atom("- p") == NegatedAtom(PredicateName("p"))
@test parse_atom("-- p") == NegatedAtom(NegatedAtom(PredicateName("p")))
end
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