public static void ToStringTakesRange()
{
var builder = new ReverseStringBuilder(100);
builder.Prepend("0123456789");
Assert.AreEqual("0", builder.ToString(builder.Length, 1));
Assert.AreEqual("12345", builder.ToString(builder.Length - 1, 5));
}
public static void ToStringWithNegativeBackIndexThrowsEvenWithCapacity()
{
var builder = new ReverseStringBuilder(20);
builder.Prepend("0123456789");
Assert.Throws <ArgumentOutOfRangeException, string>(() => builder.ToString(-1, 1));
}
public static void ToStringWithBackIndexBeyondLengthReturnsNullChars()
{
var builder = new ReverseStringBuilder(20);
builder.Prepend("0123456789");
Assert.AreEqual("\0", builder.ToString(builder.Length + 1, 1));
}
public static void ToStringWithBackIndexBeyondCapacityThrows()
{
var builder = new ReverseStringBuilder(10);
builder.Prepend("0123456789");
Assert.Throws <ArgumentOutOfRangeException, string>(() => builder.ToString(builder.Length + 1, 1));
}
private static string GenerateInstancePathString(List <InstancePathItem> instancePath, int parentInstanceIndex)
{
if (instancePath == null || instancePath.Count == 0)
{
return("");
}
int count = instancePath.Count;
ReverseStringBuilder builder = new ReverseStringBuilder(count * 2 + 4);
bool flag = true;
bool flag2 = true;
bool flag3 = parentInstanceIndex >= 0;
for (int num = count - 1; num >= 0; num--)
{
InstancePathItem instancePathItem = instancePath[num];
switch (instancePathItem.m_indexType)
{
case InstancePathItemType.ColumnMemberInstanceIndexTopMost:
case InstancePathItemType.ColumnMemberInstanceIndex:
if (flag3)
{
flag3 = false;
AppendInteger(ref builder, parentInstanceIndex);
}
else
{
AppendInteger(ref builder, instancePathItem.m_instanceIndex);
}
if (flag)
{
flag = false;
builder.Append('x');
AppendInteger(ref builder, instancePathItem.m_indexInCollection);
}
builder.Append('C');
break;
case InstancePathItemType.RowMemberInstanceIndex:
if (flag3)
{
flag3 = false;
AppendInteger(ref builder, parentInstanceIndex);
}
else
{
AppendInteger(ref builder, instancePathItem.m_instanceIndex);
}
if (flag2)
{
flag2 = false;
builder.Append('x');
AppendInteger(ref builder, instancePathItem.m_indexInCollection);
}
builder.Append('R');
break;
case InstancePathItemType.DataRegion:
AppendInteger(ref builder, instancePathItem.m_indexInCollection);
builder.Append('T');
break;
case InstancePathItemType.SubReport:
AppendInteger(ref builder, instancePathItem.m_indexInCollection);
builder.Append('S');
break;
}
}
return(builder.ToString());
}