private object GetUniqueEnumValueForProperty(TestDriverCodePack.ShellPropertyDescription propDesc, ref bool[] used)
{
if (propDesc.PropertyEnumTypes != null && propDesc.PropertyEnumTypes.Count > 0)
{
if (used == null)
{
used = new bool[propDesc.PropertyEnumTypes.Count];
}
// Ensure that each choice is different - some enums are flags, and insist on unique values
int usedSoFar = used.Where(f => f == true).Count();
int index = RandomNumber(propDesc.PropertyEnumTypes.Count - 1 - usedSoFar);
index += used.Take(index + 1).Where(f => f == true).Count();
while (used[index])
{
index++;
}
used[index] = true;
// Now work out what string to use from the seleccted enum entry
return(GetValueForEnumType(propDesc.PropertyEnumTypes[index]));
}
return(null);
}
private object GetEnumValueForProperty(TestDriverCodePack.ShellPropertyDescription propDesc)
{
if (propDesc.PropertyEnumTypes != null && propDesc.PropertyEnumTypes.Count > 0)
{
int index = RandomNumber(propDesc.PropertyEnumTypes.Count - 1);
// Now work out what value to use from the seleccted enum entry
return(GetValueForEnumType(propDesc.PropertyEnumTypes[index]));
}
return(null);
}
private string[] GetStringArrayValueForProperty(TestDriverCodePack.ShellPropertyDescription propDesc)
{
int n = random.Next(2, 5);
string[] ss = new string[n];
bool[] used = null;
for (int i = 0; i < n; i++)
{
object obj = GetUniqueEnumValueForProperty(propDesc, ref used);
if (obj != null)
{
ss[i] = (string)obj;
}
else
{
ss[i] = RandomString();
}
}
return(ss);
}
private void SetPropertyValue(string fileName, TestDriverCodePack.ShellPropertyDescription propDesc, IShellProperty prop)
{
Type t = propDesc.ValueType;
string s;
try
{
if (t == typeof(string))
{
object obj = GetEnumValueForProperty(propDesc);
if (obj != null)
{
s = (string)obj;
}
else
{
s = RandomString();
}
savedProps.Add(new SavedProp {
Name = prop.CanonicalName, Value = s
});
//(prop as ShellProperty<string>).Value = s;
// Workaround Code Pack bug with 1 char strings by using PropertyHandler
// Have to open and release each time to avoid lock problems - still, it ups the pounding
var handler = new CPropertyHandler();
handler.Initialize(fileName, 0);
PropVariant value = new PropVariant(s);
handler.SetValue(new TestDriverCodePack.PropertyKey(prop.PropertyKey.FormatId, prop.PropertyKey.PropertyId), value);
handler.Commit();
Marshal.ReleaseComObject(handler); // preempt GC for CCW
}
else if (t == typeof(string[]))
{
string[] ss = GetStringArrayValueForProperty(propDesc);
savedProps.Add(new SavedProp {
Name = prop.CanonicalName, Value = ss
});
//(prop as ShellProperty<string[]>).Value = ss;
// Workaround Code Pack bug with 1 char strings by using PropertyHandler
// Have to open and release each time to avoid lock problems - still, it ups the pounding
var handler = new CPropertyHandler();
handler.Initialize(fileName, 0);
PropVariant value = new PropVariant(ss);
handler.SetValue(new TestDriverCodePack.PropertyKey(prop.PropertyKey.FormatId, prop.PropertyKey.PropertyId), value);
handler.Commit();
Marshal.ReleaseComObject(handler); // preempt GC for CCW
}
else if (t == typeof(Int16?) || t == typeof(Int32?) || t == typeof(UInt16?) || t == typeof(UInt32?))
{
object obj = GetEnumValueForProperty(propDesc);
if (t == typeof(Int16?))
{
Int16?val = obj != null ? (Int16?)obj : (Int16?)NullableRandomNumber(-max16, max16);
savedProps.Add(new SavedProp {
Name = prop.CanonicalName, Value = val
});
(prop as ShellProperty <Int16?>).Value = val;
}
else if (t == typeof(Int32?))
{
Int32?val = obj != null ? (Int32?)obj : (Int32?)NullableRandomNumber(-max32, max32);
savedProps.Add(new SavedProp {
Name = prop.CanonicalName, Value = val
});
(prop as ShellProperty <Int32?>).Value = val;
}
else if (t == typeof(UInt16?))
{
UInt16?val = obj != null ? (UInt16?)obj : (UInt16?)NullableRandomNumber(max16);
savedProps.Add(new SavedProp {
Name = prop.CanonicalName, Value = val
});
(prop as ShellProperty <UInt16?>).Value = val;
}
else // UInt32?
{
UInt32?val = obj != null ? (UInt32?)obj : (UInt32?)NullableRandomNumber(max16);
savedProps.Add(new SavedProp {
Name = prop.CanonicalName, Value = val
});
(prop as ShellProperty <UInt32?>).Value = val;
}
}
else if (t == typeof(Int32[]))
{
Int32[] vals = new Int32[4];
for (int i = 0; i < 4; i++)
{
vals[i] = RandomNumber(-max32, max32);
}
savedProps.Add(new SavedProp {
Name = prop.CanonicalName, Value = vals
});
(prop as ShellProperty <Int32[]>).Value = vals;
}
else if (t == typeof(UInt32[]))
{
UInt32[] vals = new UInt32[4];
for (int i = 0; i < 4; i++)
{
vals[i] = (UInt32)RandomNumber(max32);
}
savedProps.Add(new SavedProp {
Name = prop.CanonicalName, Value = vals
});
(prop as ShellProperty <UInt32[]>).Value = vals;
}
else if (t == typeof(bool?))
{
int? r = NullableRandomNumber();
bool?value = (r == null) ? (bool?)null : (r % 2 == 0);
savedProps.Add(new SavedProp {
Name = prop.CanonicalName, Value = value
});
(prop as ShellProperty <bool?>).Value = value;
}
else if (t == typeof(DateTime?))
{
DateTime dt = new DateTime((long)(random.NextDouble() * (maxTocks - minTicks) + minTicks));
savedProps.Add(new SavedProp {
Name = prop.CanonicalName, Value = dt
});
(prop as ShellProperty <DateTime?>).Value = dt;
}
else if (t == typeof(double?))
{
// fails in Code Pack, so skip
//(prop as ShellProperty<double>).Value = (double)RandomNumber(max64);
}
else if (t == typeof(Int64?))
{
// fails in Code Pack, so skip
//(prop as ShellProperty<Int64>).Value = RandomNumber(max64);
}
else if (t == typeof(UInt64?))
{
// fails in Code Pack, so skip
// (prop as ShellProperty<UInt64>).Value = (UInt64) RandomNumber(max64);
}
else if (t == typeof(byte?))
{
// The Code Pack does not support setting these, so skip for now
//(prop as ShellProperty<byte>).Value = (byte)RandomNumber(max8);
}
else if (t == typeof(byte[]))
{
// The Code Pack does not support setting these, so skip for now
// Mostly 128 byte arrays e.g. System.Photo.MakerNote
//byte[] bs = new byte[128];
//random.NextBytes(bs);
//(prop as ShellProperty<byte[]>).Value = bs;
}
else if (t == typeof(object) || t == typeof(IntPtr?) || t == typeof(System.Runtime.InteropServices.ComTypes.IStream))
{
// ignore these, they are system artefacts like group header props, and don't appear in settable lists
}
else
{
throw new System.Exception("Need " + t.ToString() + " for " + propDesc.CanonicalName);
}
}
catch (System.Exception e)
{
throw new System.Exception(String.Format("Error setting property {0} to '{1}'",
savedProps.Last().Name, ToDisplayString(savedProps.Last().Value)), e);
}
}