public void BigStrings()
{
var st = new StringTable(0);
var s1 = new string('x', StringTable.BytesPerBuffer - 1);
var s2 = new string('y', StringTable.BytesPerBuffer);
var s3 = new string('z', StringTable.BytesPerBuffer + 1);
StringId id1 = st.AddString(s1);
StringId id2 = st.AddString(s2);
StringId id3 = st.AddString(s3);
XAssert.AreEqual(s1.Length, st.GetLength(id1));
XAssert.AreEqual(s2.Length, st.GetLength(id2));
XAssert.AreEqual(s3.Length, st.GetLength(id3));
var buf = new char[StringTable.BytesPerBuffer + 1];
st.CopyString(id1, buf, 0);
for (int j = 0; j < s1.Length; j++)
{
XAssert.AreEqual(s1[j], buf[j]);
}
st.CopyString(id2, buf, 0);
for (int j = 0; j < s2.Length; j++)
{
XAssert.AreEqual(s2[j], buf[j]);
}
st.CopyString(id3, buf, 0);
for (int j = 0; j < s3.Length; j++)
{
XAssert.AreEqual(s3[j], buf[j]);
}
XAssert.IsTrue(st.CaseInsensitiveEquals(id1, st.AddString(s1)));
XAssert.IsTrue(st.CaseInsensitiveEquals(id2, st.AddString(s2)));
XAssert.IsTrue(st.CaseInsensitiveEquals(id3, st.AddString(s3)));
XAssert.IsTrue(st.Equals(s1, id1));
XAssert.IsTrue(st.Equals(s2, id2));
XAssert.IsTrue(st.Equals(s3, id3));
XAssert.IsFalse(st.CaseInsensitiveEquals(id1, st.AddString(s2)));
XAssert.IsFalse(st.CaseInsensitiveEquals(id1, st.AddString(s3)));
XAssert.IsFalse(st.CaseInsensitiveEquals(id2, st.AddString(s1)));
XAssert.IsFalse(st.CaseInsensitiveEquals(id2, st.AddString(s3)));
XAssert.IsFalse(st.CaseInsensitiveEquals(id3, st.AddString(s1)));
XAssert.IsFalse(st.CaseInsensitiveEquals(id3, st.AddString(s2)));
XAssert.IsFalse(st.Equals(s2, id1));
XAssert.IsFalse(st.Equals(s3, id1));
XAssert.IsFalse(st.Equals(s1, id2));
XAssert.IsFalse(st.Equals(s3, id2));
XAssert.IsFalse(st.Equals(s1, id3));
XAssert.IsFalse(st.Equals(s2, id3));
}
public void CharMix()
{
// make sure all characters are handled properly
var st = new StringTable(0);
var map = new Dictionary <StringId, string>();
var sb = new StringBuilder(3000000);
// zip through small sizes
for (int i = 0; i < 65535; i++)
{
sb.Length = 0;
sb.Append((char)i, (i % 255) + 1);
string str = sb.ToString();
StringId sd = st.AddString(str);
map.Add(sd, str);
}
for (int i = 0; i < 2; i++)
{
// make sure all the right strings come out
var buf = new char[65535];
foreach (StringId sd in map.Keys)
{
// get the actual string we kept
string str = map[sd];
// does the table report the right length?
int length = st.GetLength(sd);
XAssert.AreEqual(str.Length, length);
// extract the chars from the table
st.CopyString(sd, buf, 0);
// make sure we got all the characters out that we should have
for (int j = 0; j < str.Length; j++)
{
XAssert.AreEqual(str[j], buf[j]);
}
}
// make sure the same behavior occurs after freezing
st.Freeze();
}
}
public void SizeMix()
{
var st = new StringTable(0);
var map = new Dictionary <StringId, string>();
var sb = new StringBuilder(3000000);
// zip through small sizes
for (int i = 0; i < 3000; i++)
{
sb.Length = 0;
sb.Append('x', i);
string str = sb.ToString();
StringId sd = st.AddString(str);
map.Add(sd, str);
}
// now use increasingly large amounts, including exceeding the size of a single buffer's worth
for (int i = 0; i < 10; i++)
{
sb.Length = 0;
sb.Append('x', i * 10000);
string str = sb.ToString();
StringId sd = st.AddString(str);
if (!map.ContainsKey(sd))
{
map.Add(sd, str);
}
}
for (int i = 0; i < 2; i++)
{
// make sure all the right strings come out
int startBias = 0;
var buf = new char[4000000];
foreach (StringId sd in map.Keys)
{
// get the actual string we kept
string str = map[sd];
// does the table report the right length?
int length = st.GetLength(sd);
XAssert.AreEqual(str.Length, length);
// put sentinel bytes in the char buffer, extract the string from the table, and check the sentinels
if (startBias > 0)
{
buf[startBias - 1] = (char)42;
}
buf[startBias + length] = (char)31415;
st.CopyString(sd, buf, startBias);
if (startBias > 0)
{
XAssert.AreEqual(42, buf[startBias - 1]);
}
XAssert.AreEqual(31415, buf[startBias + length]);
// make sure we got all the characters out that we should have
for (int j = 0; j < str.Length; j++)
{
XAssert.AreEqual(str[j], buf[startBias + j]);
}
startBias++;
}
// make sure the same behavior occurs after freezing
st.Freeze();
}
}
public async Task SizeMixParallel()
{
var st = new StringTable(0);
ConcurrentDictionary <StringId, string> map = new ConcurrentDictionary <StringId, string>();
var sb = new StringBuilder(3000000);
var strings = new BlockingCollection <string>();
var stringIds = new BlockingCollection <StringId>();
var createStringsTask = Task.Run(() =>
{
// zip through small sizes
for (int i = 0; i < 3000; i++)
{
sb.Length = 0;
sb.Append('x', i);
string str = sb.ToString();
strings.Add(str);
}
// now use increasingly large amounts, including exceeding the size of a single buffer's worth
for (int i = 0; i < 100; i++)
{
sb.Length = 0;
sb.Append('x', i * 10000);
string str = sb.ToString();
}
strings.CompleteAdding();
});
var validateStringsTask = Task.Run(() =>
{
for (int i = 0; i < 2; i++)
{
// make sure all the right strings come out
int startBias = 0;
var buf = new char[4000000];
foreach (StringId sd in stringIds.GetConsumingEnumerable())
{
// get the actual string we kept
string str = map[sd];
// does the table report the right length?
int length = st.GetLength(sd);
XAssert.AreEqual(str.Length, length);
// put sentinel bytes in the char buffer, extract the string from the table, and check the sentinels
if (startBias > 0)
{
buf[startBias - 1] = (char)42;
}
buf[startBias + length] = (char)31415;
st.CopyString(sd, buf, startBias);
if (startBias > 0)
{
XAssert.AreEqual(42, buf[startBias - 1]);
}
XAssert.AreEqual(31415, buf[startBias + length]);
// make sure we got all the characters out that we should have
for (int j = 0; j < str.Length; j++)
{
XAssert.AreEqual(str[j], buf[startBias + j]);
}
startBias++;
}
// make sure the same behavior occurs after freezing
st.Freeze();
}
});
Parallel.ForEach(strings.GetConsumingEnumerable(), str =>
{
StringId sd = st.AddString(str);
map.TryAdd(sd, str);
stringIds.Add(sd);
});
stringIds.CompleteAdding();
await createStringsTask;
await validateStringsTask;
}