mcs/tests/dtest-error-01.cs

   1 // Compiler options: -unsafe
   2
   3 using System;
   4 using System.Collections.Generic;
   5 using System.Linq;
   6 using System.Reflection;
   7 using Microsoft.CSharp.RuntimeBinder;
   8
   9 class Helper
  10 {
  11         public unsafe static int* Foo (int i)
  12         {
  13                 return null;
  14         }
  15 }
  16
  17 class Tester
  18 {
  19 #pragma warning disable 169
  20         void NonInvocable ()
  21         {
  22                 AssertError (
  23                         () => {
  24                                 dynamic d = 1;
  25                                 d ();
  26                         }, "Cannot invoke a non-delegate type");
  27         }
  28
  29         void Using_1 ()
  30         {
  31                 AssertError (
  32                         () => {
  33                                 using (dynamic d = 1) { }
  34                         }, "Cannot implicitly convert type 'int' to 'System.IDisposable'");
  35         }
  36
  37         void Unsafe_1 ()
  38         {
  39                 dynamic d = 1;
  40                 AssertError (
  41                         () => Helper.Foo (d),
  42                         "Dynamic calls cannot be used in conjunction with pointers");
  43         }
  44
  45         void NullableConversion ()
  46         {
  47                 dynamic d = 1;
  48                 AssertError (
  49                         () => {
  50                                 dynamic b = false;
  51                                 byte? b2 = null;
  52                                 b &= b2;
  53                         }, "Operator '&=' cannot be applied to operands of type 'bool' and 'byte?'");
  54         }
  55
  56 #pragma warning restore 169
  57
  58         static void AssertError (Action a, string msg)
  59         {
  60                 try {
  61                         a ();
  62                 } catch (RuntimeBinderException e) {
  63                         if (e.Message != msg)
  64                                 throw new ApplicationException ("Expected error message: " + e.Message);
  65
  66                         return;
  67                 }
  68
  69                 throw new ApplicationException ("Expected error");
  70         }
  71
  72         static bool RunTest (MethodInfo test)
  73         {
  74                 Console.Write ("Running test {0, -25}", test.Name);
  75                 try {
  76                         test.Invoke (new Tester (), null);
  77                         Console.WriteLine ("OK");
  78                         return true;
  79                 } catch (Exception e) {
  80                         Console.WriteLine ("FAILED");
  81                         Console.WriteLine (e.InnerException.Message);
  82                         return false;
  83                 }
  84         }
  85
  86         public static int Main ()
  87         {
  88                 var tests = from test in typeof (Tester).GetMethods (BindingFlags.Instance | BindingFlags.NonPublic | BindingFlags.DeclaredOnly)
  89                                         where test.GetParameters ().Length == 0
  90                                         orderby test.Name
  91                                         select RunTest (test);
  92
  93                 int failures = tests.Count (a => !a);
  94                 Console.WriteLine (failures + " tests failed");
  95                 return failures;
  96         }
  97 }