public void When_calling_ToString_on_a_BitSet()
{
var sut = new Pdb70BitSet(0);
sut[0] = true;
sut[1] = true;
sut[3] = true;
sut[5] = true;
sut[31] = true;
Assert.Equal(
"1 1 0 1 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1",
sut.ToString());
}
public void When_expanding_an_empty_BitSet_it_should_expand()
{
var sut = new Pdb70BitSet(0);
sut[0] = true;
Assert.NotNull(sut.Words);
Assert.Equal(1, sut.Words.Length);
Assert.False(sut.IsEmpty);
Assert.Equal(1u, sut.Words[0]);
Assert.True(sut[0]);
sut[0] = false;
Assert.Equal(0u, sut.Words[0]);
Assert.False(sut[0]);
sut[0x28] = true;
Assert.Equal(2, sut.Words.Length);
Assert.Equal(0x100u, sut.Words[1]);
Assert.True(sut[0x28]);
}
/// <summary>
/// Asynchronously reads a bit set from the specified reader.
/// </summary>
/// <param name="reader">The reader.</param>
/// <param name="cancellationToken">The cancellation token.</param>
/// <returns>
/// A <see cref="Task{Pdb20BitSet}"/> that represents the asynchronous read operation.
/// </returns>
public static async Task<Pdb70BitSet> ReadAsync(AsyncBinaryReader reader, CancellationToken cancellationToken)
{
var result = new Pdb70BitSet(await reader.ReadInt32Async(cancellationToken));
if (result.Words.Length != 0)
{
var bytes = await reader.ReadBytesAsync(result.Words.Length * sizeof(int), cancellationToken);
Buffer.BlockCopy(bytes, 0, result.Words, 0, bytes.Length);
}
return result;
}
public void When_calling_ToString_on_an_empty_BitSet()
{
var sut = new Pdb70BitSet(0);
Assert.Equal("", sut.ToString());
}
public async Task When_writing_a_bit_set()
{
var sut = new Pdb70BitSet();
sut[0x0] = true;
sut[0x28] = true;
var ms = new MemoryStream();
var writer = new AsyncBinaryWriter(new TestStream(ms));
await sut.WriteAsync(writer, CancellationToken.None);
Assert.Equal(new byte[] {
2, 0, 0, 0,
1, 0, 0, 0,
0, 1, 0, 0
}, ms.ToArray());
}
public void When_creating_an_empty_BitSet()
{
var sut = new Pdb70BitSet(0);
Assert.Equal(0, sut.Words.Length);
Assert.True(sut.IsEmpty);
}
public void When_deallocating_in_a_BitSet_free_list()
{
var sut = new Pdb70BitSet();
sut[0x28] = false; // Allocates two words
sut.Deallocate(0x28);
Assert.Equal(2, sut.Words.Length);
Assert.True(sut[0x28]);
}
public void When_allocating_in_a_null_BitSet_free_list()
{
var sut = new Pdb70BitSet();
var index = sut.Allocate();
Assert.Equal(0x0, index);
Assert.False(sut[0x0]);
}
public void When_creating_a_null_BitSet()
{
var sut = new Pdb70BitSet();
Assert.Null(sut.Words);
Assert.True(sut.IsEmpty);
}
public void When_allocating_in_a_BitSet_free_list()
{
var sut = new Pdb70BitSet();
sut[0x28] = true;
var index = sut.Allocate();
Assert.Equal(0x28, index);
Assert.False(sut[0x28]);
index = sut.Allocate();
Assert.Equal(0x40, index);
Assert.Equal(3, sut.Words.Length);
Assert.Equal(0xFFFFFFFFu ^ 0x1u, sut.Words[2]);
}
public void When_retrieving_an_item_past_the_end_of_a_bitset()
{
var sut = new Pdb70BitSet();
sut.Words = new uint[] { 0u };
Assert.False(sut[64]);
Assert.Equal(1, sut.Words.Length);
}