public void StructuralSubstitutingTypeComparator_AreEqual()
{
var type1 = RuntimeCompiler.CreateRecordType(new Dictionary <string, Type>
{
{ "Foo", typeof(int) }
}, valueEquality: true);
var type2 = RuntimeCompiler.CreateRecordType(new Dictionary <string, Type>
{
{ "Foo", typeof(int) }
}, valueEquality: true);
var comparer = new StructuralSubstitutingTypeComparator();
Assert.IsTrue(comparer.Equals(type1, type1));
Assert.AreEqual(0, comparer.Substitutions.Count);
Assert.IsTrue(comparer.Equals(type1, type2));
Assert.AreEqual(type1, comparer.Substitutions[type2]);
Assert.AreEqual(1, comparer.Substitutions.Count);
}
public void StructuralSubstitutingTypeComparator_DoubleMapping_ThrowsInvalidOperation()
{
var type1 = RuntimeCompiler.CreateRecordType(new Dictionary <string, Type>
{
{ "Foo", typeof(int) }
}, valueEquality: true);
var type2 = RuntimeCompiler.CreateRecordType(new Dictionary <string, Type>
{
{ "Foo", typeof(int) }
}, valueEquality: true);
var type3 = RuntimeCompiler.CreateRecordType(new Dictionary <string, Type>
{
{ "Foo", typeof(int) }
}, valueEquality: true);
var comparer = new StructuralSubstitutingTypeComparator();
Assert.IsTrue(comparer.Equals(type1, type2));
Assert.ThrowsException <InvalidOperationException>(() => comparer.Equals(type3, type2));
}
public void StructuralSubstitutingTypeComparator_AreNotEqual()
{
var type1 = RuntimeCompiler.CreateRecordType(new Dictionary <string, Type>
{
{ "Foo", typeof(int) }
}, valueEquality: true);
var type2 = RuntimeCompiler.CreateRecordType(new Dictionary <string, Type>
{
{ "Foo", typeof(long) }
}, valueEquality: true);
var comparer = new StructuralSubstitutingTypeComparator();
Assert.IsFalse(comparer.Equals(type1, type2));
}