public void Should_compose_expressions_using_OR()
{
var criterion = new Criterion {
FieldName = "foo",
Values = new[] {
new CriterionFieldValue { RawValue = "bar" },
new CriterionFieldValue { RawValue = "foo", Modifier = FieldValueModifier.BooleanOr }
}
};
var expression = new DefaultValueHandler().CreateExpression<MyEntity>(criterion);
Assert.That(expression.Compile()(new MyEntity { Foo = "bar" }), Is.True);
expression = new DefaultValueHandler().CreateExpression<MyEntity>(criterion);
Assert.That(expression.Compile()(new MyEntity { Foo = "foo" }), Is.True);
}
public void Should_evaluate_complex_expression()
{
var criterion = new Criterion {
FieldName = "bar",
Values = new[] {
new CriterionFieldValue { RawValue = "6", Operator = FieldValueOperator.NotEqual },
new CriterionFieldValue { RawValue = "5", Operator = FieldValueOperator.Equal },
new CriterionFieldValue { RawValue = "4", Operator = FieldValueOperator.GreaterThan },
new CriterionFieldValue { RawValue = "0", Operator = FieldValueOperator.LessThan, Modifier = FieldValueModifier.BooleanOr}
}
};
var expression = new DefaultValueHandler().CreateExpression<MyEntity>(criterion);
Assert.That(expression.Compile()(new MyEntity { Bar = 6 }), Is.False);
expression = new DefaultValueHandler().CreateExpression<MyEntity>(criterion);
Assert.That(expression.Compile()(new MyEntity { Bar = 5 }), Is.True);
expression = new DefaultValueHandler().CreateExpression<MyEntity>(criterion);
Assert.That(expression.Compile()(new MyEntity { Bar = -1 }), Is.True);
}
public void Should_evaluate_greater_than_or_equal()
{
var criterion = new Criterion {
FieldName = "bar",
Values = new[] {
new CriterionFieldValue { RawValue = "5", Operator = FieldValueOperator.GreaterThanOrEqualTo }
}
};
var expression = new DefaultValueHandler().CreateExpression<MyEntity>(criterion);
Assert.That(expression.Compile()(new MyEntity { Bar = 4 }), Is.False);
expression = new DefaultValueHandler().CreateExpression<MyEntity>(criterion);
Assert.That(expression.Compile()(new MyEntity { Bar = 5 }), Is.True);
}
public void Should_handle_single_matching_value()
{
var criterion = new Criterion {
FieldName = "foo",
Values = new[] {
new CriterionFieldValue { RawValue = "bar" }
}
};
var expression = new DefaultValueHandler().CreateExpression<MyEntity>(criterion);
Assert.That(expression.Compile()(new MyEntity { Foo = "bar" }), Is.True);
}
public void Should_evaluate_not_equal()
{
var criterion = new Criterion {
FieldName = "foo",
Values = new[] {
new CriterionFieldValue { RawValue = "bar", Operator = FieldValueOperator.NotEqual }
}
};
var expression = new DefaultValueHandler().CreateExpression<MyEntity>(criterion);
Assert.That(expression.Compile()(new MyEntity { Foo = "bar" }), Is.False);
expression = new DefaultValueHandler().CreateExpression<MyEntity>(criterion);
Assert.That(expression.Compile()(new MyEntity { Foo = "lulz" }), Is.True);
}