public void TestFailedEntry()
{
ReentryGuard test = new ReentryGuard();
using (test.EnterAndExit())
{
Assert.Throws<InvalidOperationException>(delegate { test.EnterAndExit(); });
}
}
public UsingBlock(ReentryGuard guard)
{
m_owner = guard;
if (m_owner.m_allowReentry==false && m_owner.m_entryCount > 0)
throw new InvalidOperationException(
"This function or statement block is not allowed to be reentered.\n" +
"Make sure that CanEnter is checked first and that EnterAndExit() is\n" +
"called within a 'using' block.");
m_owner.m_entryCount++;
}
public void TestEnterAndExit()
{
ReentryGuard test = new ReentryGuard();
Assert.True(test.CanEnter);
using (test.EnterAndExit())
{
Assert.True(!test.CanEnter);
}
Assert.True(test.CanEnter);
}
public UsingBlock(ReentryGuard guard)
{
m_owner = guard;
if (m_owner.m_allowReentry == false && m_owner.m_entryCount > 0)
{
throw new InvalidOperationException(
"This function or statement block is not allowed to be reentered.\n" +
"Make sure that CanEnter is checked first and that EnterAndExit() is\n" +
"called within a 'using' block.");
}
m_owner.m_entryCount++;
}
public void TestEnterAndExitMultiple()
{
ReentryGuard test = new ReentryGuard();
using (IDisposable guard = test.EnterAndExitMultiple())
{
Assert.True(test.HasEntered);
Assert.False(test.CanEnter);
Assert.DoesNotThrow(delegate
{
using (guard)
{
using (guard)
{
}
}
});
}
}
public void TestConstructor()
{
ReentryGuard test = new ReentryGuard();
Assert.True(test.CanEnter);
Assert.False(test.HasEntered);
}