public override IPermission Intersect(IPermission target)
{
StorePermission dp = Cast(target);
if (dp == null)
{
return(null);
}
if (this.IsUnrestricted() && dp.IsUnrestricted())
{
return(new StorePermission(PermissionState.Unrestricted));
}
if (this.IsUnrestricted())
{
return(dp.Copy());
}
if (dp.IsUnrestricted())
{
return(this.Copy());
}
StorePermissionFlags spf = _flags & dp._flags;
if (spf == StorePermissionFlags.NoFlags)
{
return(null);
}
return(new StorePermission(spf));
}
public void PermissionState_None_Copy ()
{
// both will return null under 2.0 final
// StorePermission sp1 = new StorePermission (PermissionState.None).Copy();
// StorePermission sp2 = new StorePermission (StorePermissionFlags.NoFlags).Copy ();
StorePermission sp = new StorePermission (PermissionState.None);
StorePermission copy = (StorePermission) sp.Copy ();
Assert.IsFalse (Object.ReferenceEquals (sp, copy), "ReferenceEquals");
Assert.AreEqual (sp.Flags, copy.Flags, "Copy Flags");
Assert.AreEqual (sp.IsUnrestricted (), copy.IsUnrestricted (), "IsUnrestricted ()");
}
public void ConstructorLevel_Deny_Unrestricted ()
{
StorePermission p = new StorePermission (StorePermissionFlags.AllFlags);
Assert.AreEqual (StorePermissionFlags.AllFlags, p.Flags, "Flags");
Assert.IsTrue (p.IsUnrestricted (), "IsUnrestricted");
Assert.IsNotNull (p.Copy (), "Copy");
SecurityElement se = p.ToXml ();
Assert.IsNotNull (se, "ToXml");
p.FromXml (se);
Assert.IsNotNull (p.Intersect (p), "Intersect");
Assert.IsTrue (p.IsSubsetOf (p), "IsSubsetOf");
Assert.IsNotNull (p.Union (p), "Union");
}
public void ConstructorState_Deny_Unrestricted ()
{
StorePermission p = new StorePermission (PermissionState.None);
Assert.AreEqual (StorePermissionFlags.NoFlags, p.Flags, "Flags");
Assert.IsFalse (p.IsUnrestricted (), "IsUnrestricted");
SecurityElement se = p.ToXml ();
Assert.IsNotNull (se, "ToXml");
p.FromXml (se);
Assert.IsTrue (p.IsSubsetOf (p), "IsSubsetOf");
// strange behaviour of Copy under MS fx 2.0 (returns null for NoFlags)
p.Copy ();
p.Intersect (p);
p.Union (p);
}
public void PermissionState_None ()
{
PermissionState ps = PermissionState.None;
StorePermission sp = new StorePermission (ps);
Assert.AreEqual (StorePermissionFlags.NoFlags, sp.Flags, "Flags");
Assert.IsFalse (sp.IsUnrestricted (), "IsUnrestricted");
SecurityElement se = sp.ToXml ();
// only class and version are present
Assert.AreEqual ("NoFlags", se.Attribute ("Flags"), "Xml-Flags");
Assert.IsNull (se.Children, "Xml-Children");
StorePermission copy = (StorePermission) sp.Copy ();
Assert.IsNull (copy, "Copy");
}
public void PermissionState_Unrestricted ()
{
PermissionState ps = PermissionState.Unrestricted;
StorePermission sp = new StorePermission (ps);
Assert.AreEqual (StorePermissionFlags.AllFlags, sp.Flags, "Flags");
Assert.IsTrue (sp.IsUnrestricted (), "IsUnrestricted");
SecurityElement se = sp.ToXml ();
Assert.IsNotNull (se.Attribute ("Unrestricted"), "Xml-Unrestricted");
Assert.IsNull (se.Attribute ("Level"), "Xml-Flags");
Assert.IsNull (se.Children, "Xml-Children");
StorePermission copy = (StorePermission) sp.Copy ();
Assert.IsFalse (Object.ReferenceEquals (sp, copy), "ReferenceEquals");
Assert.AreEqual (sp.Flags, copy.Flags, "Copy Flags");
Assert.AreEqual (sp.IsUnrestricted (), copy.IsUnrestricted (), "IsUnrestricted ()");
}
public override bool IsSubsetOf(IPermission target)
{
StorePermission dp = Cast(target);
if (dp == null)
{
return(_flags == StorePermissionFlags.NoFlags);
}
if (dp.IsUnrestricted())
{
return(true);
}
if (this.IsUnrestricted())
{
return(false);
}
return((_flags & ~dp._flags) == 0);
}
public override IPermission Union(IPermission target)
{
StorePermission dp = Cast(target);
if (dp == null)
{
return(this.Copy()); // will return null for NoFlags
}
if (this.IsUnrestricted() || dp.IsUnrestricted())
{
return(new StorePermission(PermissionState.Unrestricted));
}
StorePermissionFlags spf = _flags | dp._flags;
if (spf == StorePermissionFlags.NoFlags)
{
return(null);
}
return(new StorePermission(spf));
}