public void CanCreateIfFunctionCallUsingVariables()
{
// given
var ifExpr = new VariableExpression("if");
SparqlExpression thenExpr = new VariableExpression("then this");
SparqlExpression elseExpr = new VariableExpression("else that");
// when
RdfTermExpression expression = Builder.If(ifExpr).Then(thenExpr).Else(elseExpr);
// then
Assert.IsTrue(expression.Expression is IfElseFunction);
Assert.AreSame(ifExpr.Expression, expression.Expression.Arguments.ElementAt(0));
Assert.AreSame(thenExpr.Expression, expression.Expression.Arguments.ElementAt(1));
Assert.AreSame(elseExpr.Expression, expression.Expression.Arguments.ElementAt(2));
}
public void CanCreateIfFunctionCall()
{
// given
var ifExpr = new BooleanExpression(new VariableTerm("if"));
SparqlExpression thenExpr = new TypedLiteralExpression <string>("then this");
SparqlExpression elseExpr = new TypedLiteralExpression <string>("else that");
// when
RdfTermExpression expression = Builder.If(ifExpr).Then(thenExpr).Else(elseExpr);
// then
Assert.IsTrue(expression.Expression is IfElseFunction);
Assert.AreSame(expression.Expression.Arguments.ElementAt(0), ifExpr.Expression);
Assert.AreSame(expression.Expression.Arguments.ElementAt(1), thenExpr.Expression);
Assert.AreSame(expression.Expression.Arguments.ElementAt(2), elseExpr.Expression);
}
public void CanCreateTheCoalesceFunctionCall()
{
// given
SparqlExpression expr1 = new VariableExpression("x");
SparqlExpression expr2 = new TypedLiteralExpression <string>("str");
SparqlExpression expr3 = new NumericExpression <int>(10);
SparqlExpression expr4 = new NumericExpression <float>(10.5f) / new NumericExpression <float>(0);
// when
RdfTermExpression coalesce = Builder.Coalesce(expr1, expr2, expr3, expr4);
// then
Assert.IsTrue(coalesce.Expression is CoalesceFunction);
Assert.AreSame(expr1.Expression, coalesce.Expression.Arguments.ElementAt(0));
Assert.AreSame(expr2.Expression, coalesce.Expression.Arguments.ElementAt(1));
Assert.AreSame(expr3.Expression, coalesce.Expression.Arguments.ElementAt(2));
Assert.AreSame(expr4.Expression, coalesce.Expression.Arguments.ElementAt(3));
}
