public void CheckAreEqualTrees_WithStructurallyComparedTypesAndEqualValues_DoesNotThrow ()
{
Expression expected = Expression.Constant (Tuple.Create ("a"));
Expression actual = Expression.Constant (Tuple.Create ("a"));
var expressionTreeComparer = new TestableExpressionTreeComparer ("expected", "actual", typeof (Tuple<string>));
Assert.That (() => expressionTreeComparer.CheckAreEqualNodes (expected, actual), Throws.Nothing);
}
public void CheckAreEqualTrees_WithStructurallyComparedTypesAndEqualValues_DoesNotThrow()
{
Expression expected = Expression.Constant(Tuple.Create("a"));
Expression actual = Expression.Constant(Tuple.Create("a"));
var expressionTreeComparer = new TestableExpressionTreeComparer("expected", "actual", typeof(Tuple <string>));
Assert.That(() => expressionTreeComparer.CheckAreEqualNodes(expected, actual), Throws.Nothing);
}
public void CheckAreEqualTrees_WithStructurallyComparedTypesAndNotEqualValues_Throws()
{
Expression expected = Expression.Constant(Tuple.Create("a"));
Expression actual = Expression.Constant(Tuple.Create("b"));
var expressionTreeComparer = new TestableExpressionTreeComparer("expected", "actual", typeof(Tuple <string>));
Assert.That(
() => expressionTreeComparer.CheckAreEqualNodes(expected, actual),
Throws.InvalidOperationException.With.Message.EqualTo(
"Trees are not equal: Property 'Item1'\nNode 1: (a)\nNode 2: (b)\n"
+ "Tree 1: expected\nTree 2: actual"));
}
public void CheckAreEqualTrees_WithStructurallyComparedTypesAndNotEqualValues_Throws ()
{
Expression expected = Expression.Constant (Tuple.Create ("a"));
Expression actual = Expression.Constant (Tuple.Create ("b"));
var expressionTreeComparer = new TestableExpressionTreeComparer ("expected", "actual", typeof (Tuple<string>));
Assert.That (
() => expressionTreeComparer.CheckAreEqualNodes (expected, actual),
Throws.InvalidOperationException.With.Message.EqualTo (
"Trees are not equal: Property 'Item1'\n"
#if !NET_3_5
+ "Node 1: (a)\nNode 2: (b)\n"
#else
+ "Node 1: <a>\nNode 2: <b>\n"
#endif
+ "Tree 1: expected\nTree 2: actual"));
}
