mono/tests/assembly-loadfrom-simplename.cs

   1 using System;
   2 using System.IO;
   3 using System.Reflection;
   4
   5 public class TestAssemblyLoad {
   6
   7         public static int Main ()
   8         {
   9                 return TestDriver.RunTests (typeof (TestAssemblyLoad));
  10         }
  11
  12         public static bool AnyLoadedAssemblyFrom (string partialPath) {
  13                 bool result = false;
  14                 foreach (var asm in AppDomain.CurrentDomain.GetAssemblies ()) {
  15                         var p = asm.Location;
  16                         if (p != null && p.Contains (partialPath)) {
  17                                 Console.Error.WriteLine ("Assembly {0} was unexpectedly loaded from '{1}'", asm.FullName, p);
  18                                 result = true;
  19                         }
  20                 }
  21                 return result;
  22         }
  23
  24         public static int test_0_LoadFromSimpleNamePreload ()
  25         {
  26
  27                 // The Makefile arranges for assembly-dep-simplename.dll to reference "LibSimpleName, Version=1.0.0.0"
  28                 // At runtime, we will preload "libsimplename, Version=2.0.0.0" (note case and version are different).
  29                 // When we create an instance from assembly-dep-simplename, we expect it to bind to the preloaded libsimplename Version=2.0.0.0, and for no additional assemblies to be loaded.
  30                 string path1 = Path.Combine (AppDomain.CurrentDomain.BaseDirectory, "assembly-dep-simplename.dll");
  31                 string path2 = Path.Combine (AppDomain.CurrentDomain.BaseDirectory, "assembly-load-dir2", "libsimplename.dll");
  32
  33                 Assembly asm1 = Assembly.LoadFrom (path1);
  34                 if (asm1 == null) {
  35                         Console.Error.WriteLine ("expected asm1 {0} to not be null", asm1);
  36                         return 1;
  37                 }
  38
  39                 Assembly asm2 = Assembly.LoadFrom (path2);
  40                 if (asm2 == null) {
  41                         Console.Error.WriteLine ("expected asm2 {1} to not be null", asm2);
  42                         return 2;
  43                 }
  44
  45                 Type t1 = asm1.GetType ("MidClass");
  46                 if (t1 == null) {
  47                         Console.Error.WriteLine ("expected t1 {0} to not be null", t1);
  48                         return 3;
  49                 }
  50
  51                 // causes the reference to libsimplename to be resolved
  52                 var o = Activator.CreateInstance (t1);
  53
  54                 FieldInfo f1 = t1.GetField ("X");
  55                 if (f1 == null) {
  56                         Console.Error.WriteLine ("expected to get field MidClass.X, but got {0}", f1);
  57                         return 4;
  58                 }
  59
  60                 int n = (int)f1.GetValue (o);
  61                 if (n != 2) {
  62                         Console.Error.WriteLine ("expected to get the value 2 from MidClass.X, but got {0}", n);
  63                         return 5;
  64                 }
  65
  66                 if (AnyLoadedAssemblyFrom ("assembly-load-dir1")) {
  67                         Console.Error.WriteLine ("An unexpected load event happened (see above)");
  68                         return 6;
  69                 }
  70
  71                 return 0;
  72         }
  73 }