public void TesReadOnlyCollectionBasBasic()
{
MyReadOnlyCollectionBase mycol1;
MyReadOnlyCollectionBase mycol2;
Foo f1;
Foo[] arrF1;
Foo[] arrF2;
IEnumerator enu1;
int iCount;
object obj1;
ReadOnlyCollectionBase collectionBase;
//[]ReadOnlyCollectionBase implements IList (which means both ICollection and IEnumerator as well :-()
//To test this class, we will implement our own strongly typed ReadOnlyCollectionBase and call its methods
//[] SyncRoot property
arrF1 = new Foo[100];
for (int i = 0; i < 100; i++)
{
arrF1[i] = new Foo();
}
mycol1 = new MyReadOnlyCollectionBase(arrF1);
Assert.False(mycol1.SyncRoot is ArrayList, "Error SyncRoot returned ArrayList");
//[] Count property
arrF1 = new Foo[100];
for (int i = 0; i < 100; i++)
{
arrF1[i] = new Foo();
}
mycol1 = new MyReadOnlyCollectionBase(arrF1);
Assert.Equal(100, mycol1.Count);
//[]CopyTo
arrF2 = new Foo[100];
for (int i = 0; i < 100; i++)
{
arrF2[i] = new Foo(i, i.ToString());
}
mycol1 = new MyReadOnlyCollectionBase(arrF2);
arrF1 = new Foo[100];
mycol1.CopyTo(arrF1, 0);
for (int i = 0; i < 100; i++)
{
Assert.Equal(i, arrF1[i].IValue);
Assert.Equal(i.ToString(), arrF1[i].SValue);
}
//Argument checking
arrF2 = new Foo[100];
for (int i = 0; i < 100; i++)
{
arrF2[i] = new Foo(i, i.ToString());
}
mycol1 = new MyReadOnlyCollectionBase(arrF2);
arrF1 = new Foo[100];
Assert.Throws <ArgumentException>(() =>
{
mycol1.CopyTo(arrF1, 50);
}
);
Assert.Throws <ArgumentOutOfRangeException>(() =>
{
mycol1.CopyTo(arrF1, -1);
}
);
arrF1 = new Foo[200];
mycol1.CopyTo(arrF1, 100);
for (int i = 0; i < 100; i++)
{
Assert.Equal(i, arrF1[100 + i].IValue);
Assert.Equal(i.ToString(), arrF1[100 + i].SValue);
}
//[]GetEnumerator
arrF2 = new Foo[100];
for (int i = 0; i < 100; i++)
{
arrF2[i] = new Foo(i, i.ToString());
}
mycol1 = new MyReadOnlyCollectionBase(arrF2);
enu1 = mycol1.GetEnumerator();
//Calling current should throw here
Assert.Throws <InvalidOperationException>(() =>
{
f1 = (Foo)enu1.Current;
}
);
iCount = 0;
while (enu1.MoveNext())
{
f1 = (Foo)enu1.Current;
Assert.False((f1.IValue != iCount) || (f1.SValue != iCount.ToString()), "Error, does not match, " + f1.IValue);
iCount++;
}
Assert.Equal(100, iCount);
//Calling current should throw here
Assert.Throws <InvalidOperationException>(() =>
{
f1 = (Foo)enu1.Current;
}
);
//[]IsSynchronized
arrF2 = new Foo[100];
for (int i = 0; i < 100; i++)
{
arrF2[i] = new Foo(i, i.ToString());
}
Assert.False(((ICollection)mycol1).IsSynchronized);
//[]SyncRoot
arrF2 = new Foo[100];
for (int i = 0; i < 100; i++)
{
arrF2[i] = new Foo(i, i.ToString());
}
obj1 = mycol1.SyncRoot;
mycol2 = mycol1;
Assert.Equal(obj1, mycol2.SyncRoot);
//End of ICollection and IEnumerator methods
//Now to IList methods
//[]this, Contains, IndexOf
arrF2 = new Foo[100];
for (int i = 0; i < 100; i++)
{
arrF2[i] = new Foo(i, i.ToString());
}
mycol1 = new MyReadOnlyCollectionBase(arrF2);
for (int i = 0; i < 100; i++)
{
Assert.False((mycol1[i].IValue != i) || (mycol1[i].SValue != i.ToString()));
Assert.False((mycol1.IndexOf(new Foo(i, i.ToString())) != i));
Assert.False((!mycol1.Contains(new Foo(i, i.ToString()))));
}
//[]Rest of the IList methods: IsFixedSize, IsReadOnly
arrF2 = new Foo[100];
for (int i = 0; i < 100; i++)
{
arrF2[i] = new Foo(i, i.ToString());
}
mycol1 = new MyReadOnlyCollectionBase(arrF2);
Assert.True(mycol1.IsFixedSize);
Assert.True(mycol1.IsReadOnly);
//The following operations are not allowed by the compiler. Hence, commented out
arrF2 = new Foo[100];
for (int i = 0; i < 100; i++)
{
arrF2[i] = new Foo(i, i.ToString());
}
mycol1 = new MyReadOnlyCollectionBase(arrF2);
//[] Verify Count is virtual
collectionBase = new VirtualTestReadOnlyCollection();
Assert.Equal(collectionBase.Count, int.MinValue);
//[] Verify Count is virtual
collectionBase = new VirtualTestReadOnlyCollection();
Assert.Null(collectionBase.GetEnumerator());
}
public void TesReadOnlyCollectionBasBasic()
{
MyReadOnlyCollectionBase mycol1;
MyReadOnlyCollectionBase mycol2;
Foo f1;
Foo[] arrF1;
Foo[] arrF2;
IEnumerator enu1;
int iCount;
object obj1;
ReadOnlyCollectionBase collectionBase;
//[]ReadOnlyCollectionBase implements IList (which means both ICollection and IEnumerator as well :-()
//To test this class, we will implement our own strongly typed ReadOnlyCollectionBase and call its methods
//[] SyncRoot property
arrF1 = new Foo[100];
for (int i = 0; i < 100; i++)
arrF1[i] = new Foo();
mycol1 = new MyReadOnlyCollectionBase(arrF1);
Assert.False(mycol1.SyncRoot is ArrayList, "Error SyncRoot returned ArrayList");
//[] Count property
arrF1 = new Foo[100];
for (int i = 0; i < 100; i++)
arrF1[i] = new Foo();
mycol1 = new MyReadOnlyCollectionBase(arrF1);
Assert.Equal(100, mycol1.Count);
//[]CopyTo
arrF2 = new Foo[100];
for (int i = 0; i < 100; i++)
arrF2[i] = new Foo(i, i.ToString());
mycol1 = new MyReadOnlyCollectionBase(arrF2);
arrF1 = new Foo[100];
mycol1.CopyTo(arrF1, 0);
for (int i = 0; i < 100; i++)
{
Assert.Equal(i, arrF1[i].IValue);
Assert.Equal(i.ToString(), arrF1[i].SValue);
}
//Argument checking
arrF2 = new Foo[100];
for (int i = 0; i < 100; i++)
arrF2[i] = new Foo(i, i.ToString());
mycol1 = new MyReadOnlyCollectionBase(arrF2);
arrF1 = new Foo[100];
Assert.Throws<ArgumentException>(() =>
{
mycol1.CopyTo(arrF1, 50);
}
);
Assert.Throws<ArgumentOutOfRangeException>(() =>
{
mycol1.CopyTo(arrF1, -1);
}
);
arrF1 = new Foo[200];
mycol1.CopyTo(arrF1, 100);
for (int i = 0; i < 100; i++)
{
Assert.Equal(i, arrF1[100 + i].IValue);
Assert.Equal(i.ToString(), arrF1[100 + i].SValue);
}
//[]GetEnumerator
arrF2 = new Foo[100];
for (int i = 0; i < 100; i++)
arrF2[i] = new Foo(i, i.ToString());
mycol1 = new MyReadOnlyCollectionBase(arrF2);
enu1 = mycol1.GetEnumerator();
//Calling current should throw here
Assert.Throws<InvalidOperationException>(() =>
{
f1 = (Foo)enu1.Current;
}
);
iCount = 0;
while (enu1.MoveNext())
{
f1 = (Foo)enu1.Current;
Assert.False((f1.IValue != iCount) || (f1.SValue != iCount.ToString()), "Error, does not match, " + f1.IValue);
iCount++;
}
Assert.Equal(100, iCount);
//Calling current should throw here
Assert.Throws<InvalidOperationException>(() =>
{
f1 = (Foo)enu1.Current;
}
);
//[]IsSynchronized
arrF2 = new Foo[100];
for (int i = 0; i < 100; i++)
arrF2[i] = new Foo(i, i.ToString());
Assert.False(((ICollection)mycol1).IsSynchronized);
//[]SyncRoot
arrF2 = new Foo[100];
for (int i = 0; i < 100; i++)
arrF2[i] = new Foo(i, i.ToString());
obj1 = mycol1.SyncRoot;
mycol2 = mycol1;
Assert.Equal(obj1, mycol2.SyncRoot);
//End of ICollection and IEnumerator methods
//Now to IList methods
//[]this, Contains, IndexOf
arrF2 = new Foo[100];
for (int i = 0; i < 100; i++)
arrF2[i] = new Foo(i, i.ToString());
mycol1 = new MyReadOnlyCollectionBase(arrF2);
for (int i = 0; i < 100; i++)
{
Assert.False((mycol1[i].IValue != i) || (mycol1[i].SValue != i.ToString()));
Assert.False((mycol1.IndexOf(new Foo(i, i.ToString())) != i));
Assert.False((!mycol1.Contains(new Foo(i, i.ToString()))));
}
//[]Rest of the IList methods: IsFixedSize, IsReadOnly
arrF2 = new Foo[100];
for (int i = 0; i < 100; i++)
arrF2[i] = new Foo(i, i.ToString());
mycol1 = new MyReadOnlyCollectionBase(arrF2);
Assert.True(mycol1.IsFixedSize);
Assert.True(mycol1.IsReadOnly);
//The following operations are not allowed by the compiler. Hence, commented out
arrF2 = new Foo[100];
for (int i = 0; i < 100; i++)
arrF2[i] = new Foo(i, i.ToString());
mycol1 = new MyReadOnlyCollectionBase(arrF2);
//[] Verify Count is virtual
collectionBase = new VirtualTestReadOnlyCollection();
Assert.Equal(collectionBase.Count, int.MinValue);
//[] Verify Count is virtual
collectionBase = new VirtualTestReadOnlyCollection();
Assert.Null(collectionBase.GetEnumerator());
}