public void Adds_And_Formats_Message_Using_Lambda_Expression_Index()
{
var list = new List <int> {
1, 2, 3
};
// The for loop and i variable (instead of constant) are important
// because the compiler generates dependant "DisplayClass" classes,
// which results in an additional member-access expression in the tree,
// e.g. cDisplayClass31.CS$<>8__locals1.list[cDisplayClass31.i]
// instead of cDisplayClass31.list[cDisplayClass31.i]
for (int i = 0; i < 1; i++)
{
var errors = new ErrorBuilder();
errors.Add("{1} = {0}", () => list[i]);
var err = errors.GetErrors();
Assert.AreEqual("[0] = " + list[i].ToString(), err[0].ErrorMessage);
Assert.AreEqual("[0]", err[0].MemberNames.First());
errors.Clear();
errors.IncludeValueSelectorFirstKeySegment = true;
errors.Add("{1} = {0}", () => list[i]);
err = errors.GetErrors();
Assert.AreEqual("list[0] = " + list[i].ToString(), err[0].ErrorMessage);
Assert.AreEqual("list[0]", err[0].MemberNames.First());
}
}
public void Adds_And_Formats_Message_Using_Lambda_Expression_Simple()
{
string a = "ddf";
var errors = new ErrorBuilder();
errors.Add("{1} = {0}", () => a.Length);
var err = errors.GetErrors();
Assert.AreEqual("Length = " + a.Length.ToString(), err[0].ErrorMessage);
Assert.AreEqual("Length", err[0].MemberNames.First());
errors.Clear();
errors.IncludeValueSelectorFirstKeySegment = true;
errors.Add("{1} = {0}", () => a.Length);
err = errors.GetErrors();
Assert.AreEqual("Length = " + a.Length.ToString(), err[0].ErrorMessage);
Assert.AreEqual("a.Length", err[0].MemberNames.First());
}