public void TestParens()
{
Either <Error, Tuple <string, ExpressionBuilder> > res =
Parser.Expression(" 1 + 2 * 3 ");
Assert.AreEqual(new Right(new Tuple <string, ExpressionBuilder>("",
new ExpressionBuilder.Binary(
ExpressionBuilder.Op.Add,
new ExpressionBuilder.Value(Utils.Integer(1)),
new ExpressionBuilder.Binary(
ExpressionBuilder.Op.Mul,
new ExpressionBuilder.Value(Utils.Integer(2)),
new ExpressionBuilder.Value(Utils.Integer(3))
)
)
)),
res);
ExpressionBuilder e = res.Right.Item2;
SymbolTable s = new SymbolTable();
Biscuit.Datalog.Expressions.Expression ex = e.Convert(s);
Assert.IsTrue(
Arrays.AsList <Biscuit.Datalog.Expressions.Op>(
new Biscuit.Datalog.Expressions.Op.Value(new ID.Integer(1)),
new Biscuit.Datalog.Expressions.Op.Value(new ID.Integer(2)),
new Biscuit.Datalog.Expressions.Op.Value(new ID.Integer(3)),
new Biscuit.Datalog.Expressions.Op.Binary(Biscuit.Datalog.Expressions.Op.BinaryOp.Mul),
new Biscuit.Datalog.Expressions.Op.Binary(Biscuit.Datalog.Expressions.Op.BinaryOp.Add)
).SequenceEqual(
ex.GetOps())
);
Dictionary <ulong, ID> variables = new Dictionary <ulong, ID>();
Option <ID> value = ex.Evaluate(variables);
Assert.AreEqual(Option.Some(new ID.Integer(7)), value);
Assert.AreEqual("1 + 2 * 3", ex.Print(s).Get());
Either <Error, Tuple <string, ExpressionBuilder> > res2 =
Parser.Expression(" (1 + 2) * 3 ");
Assert.AreEqual(new ExpressionBuilder.Binary(
ExpressionBuilder.Op.Mul,
new ExpressionBuilder.Unary(
ExpressionBuilder.Op.Parens,
new ExpressionBuilder.Binary(
ExpressionBuilder.Op.Add,
new ExpressionBuilder.Value(Utils.Integer(1)),
new ExpressionBuilder.Value(Utils.Integer(2))
))
,
new ExpressionBuilder.Value(Utils.Integer(3))
)
,
res2.Right.Item2);
ExpressionBuilder e2 = res2.Right.Item2;
SymbolTable s2 = new SymbolTable();
Biscuit.Datalog.Expressions.Expression ex2 = e2.Convert(s2);
Assert.IsTrue(
Arrays.AsList <Biscuit.Datalog.Expressions.Op>(
new Biscuit.Datalog.Expressions.Op.Value(new ID.Integer(1)),
new Biscuit.Datalog.Expressions.Op.Value(new ID.Integer(2)),
new Biscuit.Datalog.Expressions.Op.Binary(Biscuit.Datalog.Expressions.Op.BinaryOp.Add),
new Biscuit.Datalog.Expressions.Op.Unary(Biscuit.Datalog.Expressions.Op.UnaryOp.Parens),
new Biscuit.Datalog.Expressions.Op.Value(new ID.Integer(3)),
new Biscuit.Datalog.Expressions.Op.Binary(Biscuit.Datalog.Expressions.Op.BinaryOp.Mul)
).SequenceEqual(
ex2.GetOps())
);
Dictionary <ulong, ID> variables2 = new Dictionary <ulong, ID>();
Option <ID> value2 = ex2.Evaluate(variables2);
Assert.AreEqual(Option.Some(new ID.Integer(9)), value2);
Assert.AreEqual("(1 + 2) * 3", ex2.Print(s2).Get());
}
public void TestExpression()
{
Either <Error, Tuple <string, ExpressionBuilder> > res =
Parser.Expression(" -1 ");
Assert.AreEqual(
new ExpressionBuilder.Value(Utils.Integer(-1)),
res.Right.Item2);
Either <Error, Tuple <string, ExpressionBuilder> > res2 =
Parser.Expression(" $0 <= 2019-12-04T09:46:41+00:00");
Assert.AreEqual(
new ExpressionBuilder.Binary(
ExpressionBuilder.Op.LessOrEqual,
new ExpressionBuilder.Value(Utils.Var("0")),
new ExpressionBuilder.Value(new Term.Date(1575452801))),
res2.Right.Item2);
Either <Error, Tuple <string, ExpressionBuilder> > res3 =
Parser.Expression(" 1 < $test + 2 ");
Assert.AreEqual(
new ExpressionBuilder.Binary(
ExpressionBuilder.Op.LessThan,
new ExpressionBuilder.Value(Utils.Integer(1)),
new ExpressionBuilder.Binary(
ExpressionBuilder.Op.Add,
new ExpressionBuilder.Value(Utils.Var("test")),
new ExpressionBuilder.Value(Utils.Integer(2))
)
),
res3.Right.Item2);
SymbolTable s3 = new SymbolTable();
ulong test = s3.Insert("test");
var expected = Arrays.AsList <Biscuit.Datalog.Expressions.Op>(
new Biscuit.Datalog.Expressions.Op.Value(new ID.Integer(1)),
new Biscuit.Datalog.Expressions.Op.Value(new ID.Variable(test)),
new Biscuit.Datalog.Expressions.Op.Value(new ID.Integer(2)),
new Biscuit.Datalog.Expressions.Op.Binary(Biscuit.Datalog.Expressions.Op.BinaryOp.Add),
new Biscuit.Datalog.Expressions.Op.Binary(Biscuit.Datalog.Expressions.Op.BinaryOp.LessThan)
);
Assert.IsTrue(expected.SequenceEqual(
res3.Right.Item2.Convert(s3).GetOps())
);
Either <Error, Tuple <string, ExpressionBuilder> > res4 =
Parser.Expression(" 2 < $test && $var2.starts_with(\"test\") && true ");
Assert.IsTrue(res4.IsRight);
Assert.AreEqual(new ExpressionBuilder.Binary(
ExpressionBuilder.Op.And,
new ExpressionBuilder.Binary(
ExpressionBuilder.Op.And,
new ExpressionBuilder.Binary(
ExpressionBuilder.Op.LessThan,
new ExpressionBuilder.Value(Utils.Integer(2)),
new ExpressionBuilder.Value(Utils.Var("test"))
),
new ExpressionBuilder.Binary(
ExpressionBuilder.Op.Prefix,
new ExpressionBuilder.Value(Utils.Var("var2")),
new ExpressionBuilder.Value(Utils.Strings("test"))
)
),
new ExpressionBuilder.Value(new Term.Bool(true))
),
res4.Right.Item2);
Either <Error, Tuple <string, ExpressionBuilder> > res5 =
Parser.Expression(" [ #abc, #def ].contains($operation) ");
HashSet <Term> s = new HashSet <Term>
{
Utils.Symbol("abc"),
Utils.Symbol("def")
};
Assert.IsTrue(res5.IsRight);
Assert.AreEqual(new Tuple <string, ExpressionBuilder>("",
new ExpressionBuilder.Binary(
ExpressionBuilder.Op.Contains,
new ExpressionBuilder.Value(Utils.Set(s)),
new ExpressionBuilder.Value(Utils.Var("operation"))
)
),
res5.Right);
}