public static void ExpandWithCountWithLongPrk()
{
var a = new HkdfSha512();
var b = a.Expand((s_prkForEmpty + s_prkForEmpty).DecodeHex(), ReadOnlySpan <byte> .Empty, 256);
Assert.NotNull(b);
Assert.Equal(256, b.Length);
}
public static void ExpandWithMaxSpan()
{
var a = new HkdfSha512();
var expected = s_outputForEmpty.DecodeHex();
var actual = new byte[a.MaxOutputSize];
a.Expand(s_prkForEmpty.DecodeHex(), ReadOnlySpan <byte> .Empty, actual);
Assert.Equal(expected, actual);
}
public static void ExpandWithSpanSuccess(int count)
{
var a = new HkdfSha512();
var expected = s_outputForEmpty.DecodeHex().Substring(0, count);
var actual = new byte[count];
a.Expand(s_prkForEmpty.DecodeHex(), ReadOnlySpan <byte> .Empty, actual);
Assert.Equal(expected, actual);
}
public static void ExpandWithMaxCount()
{
var a = new HkdfSha512();
var expected = s_outputForEmpty.DecodeHex();
var actual = a.Expand(s_prkForEmpty.DecodeHex(), ReadOnlySpan <byte> .Empty, a.MaxOutputSize);
Assert.NotNull(actual);
Assert.Equal(expected, actual);
Assert.Equal(a.MaxOutputSize, actual.Length);
}
public static void ExpandWithCountSuccess(int count)
{
var a = new HkdfSha512();
var expected = s_outputForEmpty.DecodeHex().Substring(0, count);
var actual = a.Expand(s_prkForEmpty.DecodeHex(), ReadOnlySpan <byte> .Empty, count);
Assert.NotNull(actual);
Assert.Equal(expected, actual);
Assert.Equal(count, actual.Length);
}
public static void ExpandWithSpanTooLarge()
{
var a = new HkdfSha512();
Assert.Throws <ArgumentException>("bytes", () => a.Expand(s_prkForEmpty.DecodeHex(), ReadOnlySpan <byte> .Empty, new byte[a.MaxOutputSize + 1]));
}
public static void ExpandWithSpanWithPrkTooShort()
{
var a = new HkdfSha512();
Assert.Throws <ArgumentException>("pseudorandomKey", () => a.Expand(new byte[a.PseudorandomKeySize - 1], ReadOnlySpan <byte> .Empty, new byte[0]));
}
public static void ExpandWithCountTooLarge()
{
var a = new HkdfSha512();
Assert.Throws <ArgumentOutOfRangeException>("count", () => a.Expand(s_prkForEmpty.DecodeHex(), ReadOnlySpan <byte> .Empty, a.MaxOutputSize + 1));
}
public static void ExpandWithNegativeCount()
{
var a = new HkdfSha512();
Assert.Throws <ArgumentOutOfRangeException>("count", () => a.Expand(s_prkForEmpty.DecodeHex(), ReadOnlySpan <byte> .Empty, -1));
}
