public void ShouldAssignAVariableInAConditionalTest()
{
var intVariable = Expression.Variable(typeof(int), "i");
var assignVariable = Expression.Assign(intVariable, Expression.Constant(10));
var isAssignmentFive = Expression.Equal(assignVariable, Expression.Constant(5));
var ifFiveDoNothing = Expression.IfThen(isAssignmentFive, Expression.Empty());
var translated = ToReadableString(ifFiveDoNothing);
const string EXPECTED = @"
if ((i = 10) == 5)
{
}";
translated.ShouldBe(EXPECTED.TrimStart());
}
public void ShouldTranslateATryCatch()
{
var writeHello = CreateLambda(() => Console.Write("Hello"));
var exception = Expression.Variable(typeof(TimeoutException), "timeoutEx");
var timeoutCatch = Expression.Catch(exception, Expression.Empty());
var tryCatch = Expression.TryCatch(writeHello.Body, timeoutCatch);
var translated = ToReadableString(tryCatch);
const string EXPECTED = @"
try
{
Console.Write(""Hello"");
}
catch (TimeoutException)
{
}";
translated.ShouldBe(EXPECTED.TrimStart());
}
public void ShouldTranslateATryWithAFilteredCatch()
{
var writeHello = CreateLambda(() => Console.Write("Hello"));
var filter = CreateLambda((TimeoutException timeoutEx) => timeoutEx.Data != null);
var exception = filter.Parameters.First();
var timeoutCatch = Expression.Catch(exception, Expression.Empty(), filter.Body);
var tryCatch = Expression.TryCatch(writeHello.Body, timeoutCatch);
var translated = ToReadableString(tryCatch);
const string EXPECTED = @"
try
{
Console.Write(""Hello"");
}
catch (TimeoutException timeoutEx) when (timeoutEx.Data != null)
{
}";
translated.ShouldBe(EXPECTED.TrimStart());
}
