public void Reduce_OrElseWithTrueAtEnd_RemovesRedundantTrue()
{
Expression <Func <BooleanReducerTest, bool> > expression1 = e => e.Property1 == DateTime.Now || true;
Expression <Func <BooleanReducerTest, bool> > expression2 = e => true;
var rewritten = new BooleanReducer().Reduce(expression1);
expression2.ToString().Should().Be.EqualTo(rewritten.ToString());
}
public void Reduce_OrElseWithLeftTrue_ReturnsTrue()
{
Expression <Func <BooleanReducerTest, bool> > expression1 = e => true || e.Property1 == DateTime.Now;
Expression <Func <BooleanReducerTest, bool> > expression2 = e => true;
var rewritten = new BooleanReducer().Reduce(expression1);
expression2.ToString().Should().Be.EqualTo(rewritten.ToString());
}
public void Reduce_ComplexAndAlsoWithIrreducableOrElseAtFront_ReturnsCorrectExpression()
{
Expression <Func <BooleanReducerTest, bool> > expression1 = e => (false || e.Property1 == DateTime.Now) && true && e.Property1 == DateTime.Now;
Expression <Func <BooleanReducerTest, bool> > expression2 = e => e.Property1 == DateTime.Now && e.Property1 == DateTime.Now;
var rewritten = new BooleanReducer().Reduce(expression1);
expression2.ToString().Should().Be.EqualTo(rewritten.ToString());
}
public void Reduce_BoolAtFrontAndEndWithFalseInMiddle_ReturnsFalse()
{
Expression <Func <BooleanReducerTest, bool> > expression1 = e => true && e.Property1 == DateTime.Now && false && true;
Expression <Func <BooleanReducerTest, bool> > expression2 = e => false;
var rewritten = new BooleanReducer().Reduce(expression1);
expression2.ToString().Should().Be.EqualTo(rewritten.ToString());
}
public void Reduce_MultipleOrElseTrueAtFront_ReturnsTrue()
{
Expression <Func <BooleanReducerTest, bool> > expression1 = e => true || false || false || true || true;
Expression <Func <BooleanReducerTest, bool> > expression2 = e => true;
var rewritten = new BooleanReducer().Reduce(expression1);
expression2.ToString().Should().Be.EqualTo(rewritten.ToString());
}
public void Reduce_MultipleAndAlsoTrueAndNestedFalseAndAlso_ReturnsFalse()
{
Expression <Func <LdapUser, bool> > input = e => true && true && (false && true);
Expression <Func <LdapUser, bool> > expected = e => false;
Expression rewritten = new BooleanReducer().Reduce(input);
Assert.AreEqual(expected.ToString(), rewritten.ToString());
}
public void Reduce_MultipleOrElseFalseAtFront_ReturnsTrue()
{
Expression <Func <LdapUser, bool> > input = e => false || false || false || false || true;
Expression <Func <LdapUser, bool> > expected = e => true;
Expression rewritten = new BooleanReducer().Reduce(input);
Assert.AreEqual(expected.ToString(), rewritten.ToString());
}
public void Reduce_MultipleAndAlsoTrueAndNestedAndAlso_ReturnsTrue()
{
Expression <Func <BooleanReducerTest, bool> > expression1 = e => true && true && (true && true);
Expression <Func <BooleanReducerTest, bool> > expression2 = e => true;
var rewritten = new BooleanReducer().Reduce(expression1);
expression2.ToString().Should().Be.EqualTo(rewritten.ToString());
}
public void Reduce_OrElseWithTrueAtEnd_RemovesRedundantTrue()
{
Expression <Func <LdapUser, bool> > input = e => e.CommonName == "gosho" || true;
Expression <Func <LdapUser, bool> > expected = e => true;
Expression rewritten = new BooleanReducer().Reduce(input);
Assert.AreEqual(expected.ToString(), rewritten.ToString());
}
public void Reduce_Duplicate_True_RemovesDuplicates()
{
Expression <Func <bool, bool> > input = e => true && true;
Expression <Func <bool, bool> > expected = e => true;
Expression rewritten = new BooleanReducer().Reduce(input);
Assert.AreEqual(expected.ToString(), rewritten.ToString());
}
public void Reduce_OrElseWithLeftTrue_ReturnsTrue()
{
Expression <Func <LdapUser, bool> > input = e => true || e.CommonName == "gosho";
Expression <Func <LdapUser, bool> > expected = e => true;
Expression rewritten = new BooleanReducer().Reduce(input);
Assert.AreEqual(expected.ToString(), rewritten.ToString());
}
public void Reduce_MultipleAndAlsoFalse_ReturnsFalse()
{
Expression <Func <BooleanReducerTest, bool> > expression1 = e => false && false && false && false;
Expression <Func <BooleanReducerTest, bool> > expression2 = e => false;
var rewritten = new BooleanReducer().Reduce(expression1);
expression2.ToString().Should().Be.EqualTo(rewritten.ToString());
}
public void Reduce_BoolAtEnd_RemovesDuplicates()
{
Expression <Func <LdapUser, bool> > input = e => e.CommonName == "gosho" && true && true;
Expression <Func <LdapUser, bool> > expected = e => e.CommonName == "gosho";
Expression rewritten = new BooleanReducer().Reduce(input);
Assert.AreEqual(expected.ToString(), rewritten.ToString());
}
public void Reduce_ComplexAndAlsoWithOrElseAtFront_ReturnsCorrectExpression()
{
Expression <Func <LdapUser, bool> > input = e =>
(true || e.CommonName == "gosho") && true && e.CommonName == "gosho";
Expression <Func <LdapUser, bool> > expected = e => e.CommonName == "gosho";
Expression rewritten = new BooleanReducer().Reduce(input);
Assert.AreEqual(expected.ToString(), rewritten.ToString());
}
public void Reduce_BoolAtFrontAndEndWithFalseInMiddle_ReturnsFalse()
{
Expression <Func <LdapUser, bool> > input = e =>
true && e.CommonName == "gosho" && false && true;
Expression <Func <LdapUser, bool> > expected = e => false;
Expression rewritten = new BooleanReducer().Reduce(input);
Assert.AreEqual(expected.ToString(), rewritten.ToString());
}
public void Reduce_BoolAtEnd_RemovesDuplicates()
{
//prepare
_queryContext.Query <BooleanReducerTest>().Where(e => e.Property1 == DateTime.Now && true && true).Select(e => new { Prop2 = e.Property3 ? "test" : "go" });
var expression1 = _queryContext.ActiveProvider.CurrentExpression;
_queryContext.Query <BooleanReducerTest>().Where(e => e.Property1 == DateTime.Now).Select(e => new { Prop2 = e.Property3 ? "test" : "go" });
var expression2 = _queryContext.ActiveProvider.CurrentExpression;
//act
var rewritten = new BooleanReducer().Reduce(expression1);
//assert
expression2.ToString().Should().Be.EqualTo(rewritten.ToString());
}
public void Reduce_Duplicate_True_RemovesDuplicates()
{
//prepare
_queryContext.Query <BooleanReducerTest>().Where(e => true && true);
var expression1 = _queryContext.ActiveProvider.CurrentExpression;
_queryContext.Query <BooleanReducerTest>().Where(e => true);
var expression2 = _queryContext.ActiveProvider.CurrentExpression;
//act
var rewritten = new BooleanReducer().Reduce(expression1);
//assert
expression2.ToString().Should().Be.EqualTo(rewritten.ToString());
}
