private void VerifyResult(bool after)
{
Search search = EverythingInFolders();
XmlNode expectedResults = GetExpectedResults(after);
MW(delegate() { ComparerAdapter.CompareResults(search, expectedResults); });
}
public void IEqualityComparerEqualsShouldReturnTrueWhenItemsAreEqual()
{
IEqualityComparer t1 = new ComparerAdapter<string, int>( s => s.Length ); // ref type
Assert.True( t1.Equals( "TEST", "test" ) ); // compared by length
IEqualityComparer t2 = new ComparerAdapter<DateTime, int>( d => d.Day ); // value type
var actual = t2.Equals( new DateTime( 2012, 1, 1 ), new DateTime( 2013, 1, 1 ) );
Assert.True( actual ); // compared by day
}
public void GetHashCodeShouldReturnZeroForNull()
{
// arrange
var target = new ComparerAdapter<string, int>( s => s.Length );
// act
var actual = target.GetHashCode( null );
Assert.Equal( 0, actual );
}
public void IEqualityComparerEqualsShouldReturnTrueWhenItemsAreNull()
{
// arrange
var target = new ComparerAdapter<string, int>( s => s.Length );
// act
var actual = target.Equals( null, null );
// assert
Assert.True( actual );
}
public void GetHashCodeShouldReturnExpectedValue()
{
// arrange
var value = "test";
var expected = EqualityComparer<int>.Default.GetHashCode( value.Length );
var target = new ComparerAdapter<string, int>( s => s.Length );
// act
var actual = target.GetHashCode( value );
// assert
Assert.Equal( expected, actual );
}
public void IComparerCompareShouldReturnNegativeOneWhenRightSideIsGreater()
{
// arrange
IComparer target = new ComparerAdapter<string, int>( s => s.Length );
// act
var actual = target.Compare( "short", "longer" );
// assert
Assert.Equal( -1, actual );
}
public void CompareShouldReturnOneWhenLeftSideIsGreater()
{
// arrange
var target = new ComparerAdapter<string, int>( s => s.Length );
// act
var actual = target.Compare( "longer", "short" );
// assert
Assert.Equal( 1, actual );
}
public void IComparerCompareShouldReturnZeroWhenItemsAreEqual()
{
IComparer t1 = new ComparerAdapter<string, int>( s => s.Length ); // ref type
Assert.Equal( 0, t1.Compare( "TEST", "test" ) ); // compared by length
IComparer t2 = new ComparerAdapter<DateTime, int>( d => d.Day ); // value type
var actual = t2.Compare( new DateTime( 2012, 1, 1 ), new DateTime( 2013, 1, 1 ) );
Assert.Equal( 0, actual ); // compared by day
}
public void IComparerCompareShouldReturnZeroWhenItemsAreNull()
{
// arrange
IComparer target = new ComparerAdapter<string, int>( s => s.Length );
// act
var actual = target.Compare( null, null );
// assert
Assert.Equal( 0, actual );
}
