Files
SabreTools.IO/SabreTools.IO.Test/Extensions/ByteArrayExtensionsTests.cs
2025-11-04 10:08:56 -05:00

978 lines
31 KiB
C#

using System;
using System.Linq;
using System.Text;
using SabreTools.IO.Extensions;
using Xunit;
namespace SabreTools.IO.Test.Extensions
{
public class ByteArrayExtensionsTests
{
#region IsNullOrEmpty
[Fact]
public void IsNullOrEmpty_Null_True()
{
byte[]? arr = null;
bool actual = arr.IsNullOrEmpty();
Assert.True(actual);
}
[Fact]
public void IsNullOrEmpty_Empty_True()
{
byte[]? arr = [];
bool actual = arr.IsNullOrEmpty();
Assert.True(actual);
}
[Fact]
public void IsNullOrEmpty_NonEmpty_False()
{
byte[]? arr = [0x01];
bool actual = arr.IsNullOrEmpty();
Assert.False(actual);
}
#endregion
#region IsNumericArray
[Fact]
public void IsNumericArray_Empty_False()
{
byte[] arr = [];
bool actual = arr.IsNumericArray();
Assert.False(actual);
}
[Fact]
public void IsNumericArray_NonNumeric_False()
{
byte[] arr = Encoding.ASCII.GetBytes("ABCDEF");
bool actual = arr.IsNumericArray();
Assert.False(actual);
}
[Fact]
public void IsNumericArray_MixedNumeric_False()
{
byte[] arr = Encoding.ASCII.GetBytes("ABC123");
bool actual = arr.IsNumericArray();
Assert.False(actual);
}
[Fact]
public void IsNumericArray_Numeric_True()
{
byte[] arr = Encoding.ASCII.GetBytes("0123456789");
bool actual = arr.IsNumericArray();
Assert.True(actual);
}
#endregion
#region FindAllPositions
[Fact]
public void FindAllPositions_EmptyStack_NoMatches()
{
byte[] stack = [];
var positions = stack.FindAllPositions([0x01]);
Assert.Empty(positions);
}
[Fact]
public void FindAllPositions_EmptyNeedle_NoMatches()
{
byte[] stack = [0x01];
var positions = stack.FindAllPositions(Array.Empty<byte>());
Assert.Empty(positions);
}
[Fact]
public void FindAllPositions_LongerNeedle_NoMatches()
{
byte[] stack = [0x01];
var positions = stack.FindAllPositions([0x01, 0x02]);
Assert.Empty(positions);
}
[Fact]
public void FindAllPositions_InvalidStart_NoMatches()
{
byte[] stack = [0x01];
var positions = stack.FindAllPositions([0x01, 0x02], start: -1);
Assert.Empty(positions);
positions = stack.FindAllPositions([0x01, 0x02], start: 2);
Assert.Empty(positions);
}
[Fact]
public void FindAllPositions_InvalidEnd_NoMatches()
{
byte[] stack = [0x01];
var positions = stack.FindAllPositions([0x01, 0x02], end: -2);
Assert.Empty(positions);
positions = stack.FindAllPositions([0x01, 0x02], end: 0);
Assert.Empty(positions);
positions = stack.FindAllPositions([0x01, 0x02], end: 2);
Assert.Empty(positions);
}
[Fact]
public void FindAllPositions_Matching_Matches()
{
byte[] stack = [0x01, 0x02];
var positions = stack.FindAllPositions([0x01, 0x02]);
int position = Assert.Single(positions);
Assert.Equal(0, position);
}
[Fact]
public void FindAllPositions_Mismatch_NoMatches()
{
byte[] stack = [0x01, 0x03];
var positions = stack.FindAllPositions([0x01, 0x02]);
Assert.Empty(positions);
}
[Fact]
public void FindAllPositions_Multiple_Matches()
{
byte[] stack = [0x01, 0x01];
var positions = stack.FindAllPositions([0x01]);
Assert.Equal(2, positions.Count);
}
#endregion
#region FirstPosition
[Fact]
public void FirstPosition_EmptyStack_NoMatches()
{
byte[] stack = [];
int position = stack.FirstPosition([0x01]);
Assert.Equal(-1, position);
}
[Fact]
public void FirstPosition_EmptyNeedle_NoMatches()
{
byte[] stack = [0x01];
int position = stack.FirstPosition(Array.Empty<byte>());
Assert.Equal(-1, position);
}
[Fact]
public void FirstPosition_LongerNeedle_NoMatches()
{
byte[] stack = [0x01];
int position = stack.FirstPosition([0x01, 0x02]);
Assert.Equal(-1, position);
}
[Fact]
public void FirstPosition_InvalidStart_NoMatches()
{
byte[] stack = [0x01];
int position = stack.FirstPosition([0x01, 0x02], start: -1);
Assert.Equal(-1, position);
position = stack.FirstPosition([0x01, 0x02], start: 2);
Assert.Equal(-1, position);
}
[Fact]
public void FirstPosition_InvalidEnd_NoMatches()
{
byte[] stack = [0x01];
int position = stack.FirstPosition([0x01, 0x02], end: -2);
Assert.Equal(-1, position);
position = stack.FirstPosition([0x01, 0x02], end: 0);
Assert.Equal(-1, position);
position = stack.FirstPosition([0x01, 0x02], end: 2);
Assert.Equal(-1, position);
}
[Fact]
public void FirstPosition_Matching_Matches()
{
byte[] stack = [0x01, 0x02];
int position = stack.FirstPosition([0x01, 0x02]);
Assert.Equal(0, position);
}
[Fact]
public void FirstPosition_Mismatch_NoMatches()
{
byte[] stack = [0x01, 0x03];
int position = stack.FirstPosition([0x01, 0x02]);
Assert.Equal(-1, position);
}
[Fact]
public void FirstPosition_Multiple_Matches()
{
byte[] stack = [0x01, 0x01];
int position = stack.FirstPosition([0x01]);
Assert.Equal(0, position);
}
#endregion
#region LastPosition
[Fact]
public void LastPosition_EmptyStack_NoMatches()
{
byte[] stack = [];
int position = stack.LastPosition([0x01]);
Assert.Equal(-1, position);
}
[Fact]
public void LastPosition_EmptyNeedle_NoMatches()
{
byte[] stack = [0x01];
int position = stack.LastPosition(Array.Empty<byte>());
Assert.Equal(-1, position);
}
[Fact]
public void LastPosition_LongerNeedle_NoMatches()
{
byte[] stack = [0x01];
int position = stack.LastPosition([0x01, 0x02]);
Assert.Equal(-1, position);
}
[Fact]
public void LastPosition_InvalidStart_NoMatches()
{
byte[] stack = [0x01];
int position = stack.LastPosition([0x01, 0x02], start: -1);
Assert.Equal(-1, position);
position = stack.LastPosition([0x01, 0x02], start: 2);
Assert.Equal(-1, position);
}
[Fact]
public void LastPosition_InvalidEnd_NoMatches()
{
byte[] stack = [0x01];
int position = stack.LastPosition([0x01, 0x02], end: -2);
Assert.Equal(-1, position);
position = stack.LastPosition([0x01, 0x02], end: 0);
Assert.Equal(-1, position);
position = stack.LastPosition([0x01, 0x02], end: 2);
Assert.Equal(-1, position);
}
[Fact]
public void LastPosition_Matching_Matches()
{
byte[] stack = [0x01, 0x02];
int position = stack.LastPosition([0x01, 0x02]);
Assert.Equal(0, position);
}
[Fact]
public void LastPosition_Mismatch_NoMatches()
{
byte[] stack = [0x01, 0x03];
int position = stack.LastPosition([0x01, 0x02]);
Assert.Equal(-1, position);
}
[Fact]
public void LastPosition_Multiple_Matches()
{
byte[] stack = [0x01, 0x01];
int position = stack.LastPosition([0x01]);
Assert.Equal(1, position);
}
#endregion
#region EqualsExactly
[Fact]
public void EqualsExactly_EmptyStack_NoMatches()
{
byte[] stack = [];
bool found = stack.EqualsExactly([0x01]);
Assert.False(found);
}
[Fact]
public void EqualsExactly_EmptyNeedle_NoMatches()
{
byte[] stack = [0x01];
bool found = stack.EqualsExactly(Array.Empty<byte>());
Assert.False(found);
}
[Fact]
public void EqualsExactly_ShorterNeedle_NoMatches()
{
byte[] stack = [0x01, 0x02];
bool found = stack.EqualsExactly([0x01]);
Assert.False(found);
}
[Fact]
public void EqualsExactly_LongerNeedle_NoMatches()
{
byte[] stack = [0x01];
bool found = stack.EqualsExactly([0x01, 0x02]);
Assert.False(found);
}
[Fact]
public void EqualsExactly_Matching_Matches()
{
byte[] stack = [0x01, 0x02];
bool found = stack.EqualsExactly([0x01, 0x02]);
Assert.True(found);
}
[Fact]
public void EqualsExactly_Mismatch_NoMatches()
{
byte[] stack = [0x01, 0x03];
bool found = stack.EqualsExactly([0x01, 0x02]);
Assert.False(found);
}
#endregion
#region StartsWith
[Fact]
public void StartsWith_EmptyStack_NoMatches()
{
byte[] stack = [];
bool found = stack.StartsWith([0x01]);
Assert.False(found);
}
[Fact]
public void StartsWith_EmptyNeedle_NoMatches()
{
byte[] stack = [0x01];
bool found = stack.StartsWith(Array.Empty<byte>());
Assert.False(found);
}
[Fact]
public void StartsWith_LongerNeedle_NoMatches()
{
byte[] stack = [0x01];
bool found = stack.StartsWith([0x01, 0x02]);
Assert.False(found);
}
[Fact]
public void StartsWith_Matching_Matches()
{
byte[] stack = [0x01, 0x02];
bool found = stack.StartsWith([0x01, 0x02]);
Assert.True(found);
}
[Fact]
public void StartsWith_Mismatch_NoMatches()
{
byte[] stack = [0x01, 0x03];
bool found = stack.StartsWith([0x01, 0x02]);
Assert.False(found);
}
[Fact]
public void StartsWith_Multiple_Matches()
{
byte[] stack = [0x01, 0x01];
bool found = stack.StartsWith([0x01]);
Assert.True(found);
}
#endregion
#region EndsWith
[Fact]
public void EndsWith_EmptyStack_NoMatches()
{
byte[] stack = [];
bool found = stack.EndsWith([0x01]);
Assert.False(found);
}
[Fact]
public void EndsWith_EmptyNeedle_NoMatches()
{
byte[] stack = [0x01];
bool found = stack.EndsWith(Array.Empty<byte>());
Assert.False(found);
}
[Fact]
public void EndsWith_LongerNeedle_NoMatches()
{
byte[] stack = [0x01];
bool found = stack.StartsWith([0x01, 0x02]);
Assert.False(found);
}
[Fact]
public void EndsWith_Matching_Matches()
{
byte[] stack = [0x01, 0x02];
bool found = stack.EndsWith([0x01, 0x02]);
Assert.True(found);
}
[Fact]
public void EndsWith_Mismatch_NoMatches()
{
byte[] stack = [0x01, 0x03];
bool found = stack.EndsWith([0x01, 0x02]);
Assert.False(found);
}
[Fact]
public void EndsWith_Multiple_Matches()
{
byte[] stack = [0x01, 0x01];
bool found = stack.EndsWith([0x01]);
Assert.True(found);
}
#endregion
#region Add
[Theory]
[InlineData(new byte[0], 0, new byte[0])]
[InlineData(new byte[0], 1234, new byte[] { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x04, 0xD2 })]
[InlineData(new byte[] { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x04, 0xD2 }, 0, new byte[] { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x04, 0xD2 })]
[InlineData(new byte[] { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x04, 0xD2 }, 1234, new byte[] { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x09, 0xA4 })]
public void Add_NumericInput(byte[] self, uint add, byte[] expected)
{
byte[] actual = self.Add(add);
Assert.Equal(expected.Length, actual.Length);
if (actual.Length > 0)
Assert.True(actual.EqualsExactly(expected));
}
[Theory]
[InlineData(new byte[0], new byte[0], new byte[0])]
[InlineData(new byte[0], new byte[] { 0x04, 0xD2 }, new byte[] { 0x04, 0xD2 })]
[InlineData(new byte[] { 0x04, 0xD2 }, new byte[0], new byte[] { 0x04, 0xD2 })]
[InlineData(new byte[] { 0x04, 0xD2 }, new byte[] { 0x00, 0x00 }, new byte[] { 0x04, 0xD2 })]
[InlineData(new byte[] { 0x00, 0x00 }, new byte[] { 0x04, 0xD2 }, new byte[] { 0x04, 0xD2 })]
[InlineData(new byte[] { 0x04, 0xD2 }, new byte[] { 0x04, 0xD2 }, new byte[] { 0x09, 0xA4 })]
[InlineData(new byte[] { 0xAB, 0x04, 0xD2 }, new byte[] { 0x04, 0xD2 }, new byte[] { 0xAB, 0x09, 0xA4 })]
[InlineData(new byte[] { 0x04, 0xD2 }, new byte[] { 0xAB, 0x04, 0xD2 }, new byte[] { 0xAB, 0x09, 0xA4 })]
public void Add_ArrayInput(byte[] self, byte[] add, byte[] expected)
{
byte[] actual = self.Add(add);
Assert.Equal(expected.Length, actual.Length);
if (actual.Length > 0)
Assert.True(actual.EqualsExactly(expected));
}
#endregion
#region RotateLeft
[Theory]
[InlineData(new byte[0], 0, new byte[0])]
[InlineData(new byte[] { 0x01 }, 0, new byte[] { 0x01 })]
[InlineData(new byte[] { 0x01 }, 1, new byte[] { 0x02 })]
[InlineData(new byte[] { 0x80 }, 1, new byte[] { 0x01 })]
[InlineData(new byte[] { 0x00, 0x01 }, 0, new byte[] { 0x00, 0x01 })]
[InlineData(new byte[] { 0x00, 0x01 }, 1, new byte[] { 0x00, 0x02 })]
[InlineData(new byte[] { 0x00, 0x80 }, 1, new byte[] { 0x01, 0x00 })]
[InlineData(new byte[] { 0x80, 0x00 }, 1, new byte[] { 0x00, 0x01 })]
public void RotateLeftTest(byte[] self, int numBits, byte[] expected)
{
byte[] actual = self.RotateLeft(numBits);
Assert.Equal(expected.Length, actual.Length);
if (actual.Length > 0)
Assert.True(actual.EqualsExactly(expected));
}
#endregion
#region Xor
[Theory]
[InlineData(new byte[0], new byte[0], new byte[0])]
[InlineData(new byte[0], new byte[] { 0x04, 0xD2 }, new byte[] { 0x04, 0xD2 })]
[InlineData(new byte[] { 0x04, 0xD2 }, new byte[0], new byte[] { 0x04, 0xD2 })]
[InlineData(new byte[] { 0x04, 0xD2 }, new byte[] { 0x00, 0x00 }, new byte[] { 0x04, 0xD2 })]
[InlineData(new byte[] { 0x00, 0x00 }, new byte[] { 0x04, 0xD2 }, new byte[] { 0x04, 0xD2 })]
[InlineData(new byte[] { 0x04, 0xD2 }, new byte[] { 0x04, 0xD2 }, new byte[] { 0x00, 0x00 })]
[InlineData(new byte[] { 0xAB, 0x04, 0xD2 }, new byte[] { 0x04, 0xD2 }, new byte[] { 0xAB, 0x00, 0x00 })]
[InlineData(new byte[] { 0x04, 0xD2 }, new byte[] { 0xAB, 0x04, 0xD2 }, new byte[] { 0xAB, 0x00, 0x00 })]
public void XorTest(byte[] self, byte[] add, byte[] expected)
{
byte[] actual = self.Xor(add);
Assert.Equal(expected.Length, actual.Length);
if (actual.Length > 0)
Assert.True(actual.EqualsExactly(expected));
}
#endregion
#region ToHexString
[Fact]
public void ToHexString_Null()
{
byte[]? arr = null;
string? actual = arr.ToHexString();
Assert.Null(actual);
}
[Fact]
public void ToHexString_Valid()
{
byte[]? arr = [0x01, 0x02, 0x03, 0x04];
string expected = "01020304";
string? actual = arr.ToHexString();
Assert.NotNull(actual);
Assert.Equal(expected, actual);
}
#endregion
#region FromHexString
[Fact]
public void FromHexString_Null()
{
string? str = null;
byte[]? actual = str.FromHexString();
Assert.Null(actual);
}
[Fact]
public void FromHexString_Valid()
{
string str = "01020304";
byte[]? expected = [0x01, 0x02, 0x03, 0x04];
byte[]? actual = str.FromHexString();
Assert.NotNull(actual);
Assert.True(expected.SequenceEqual(actual));
}
[Fact]
public void FromHexString_Invalid()
{
string str = "0102030G";
byte[]? actual = str.FromHexString();
Assert.Null(actual);
}
#endregion
#region ReadStringsFrom
[Fact]
public void ReadStringsFrom_Null_Null()
{
byte[]? arr = null;
var actual = arr.ReadStringsFrom(3);
Assert.Null(actual);
}
[Fact]
public void ReadStringsFrom_Empty_Null()
{
byte[]? arr = [];
var actual = arr.ReadStringsFrom(3);
Assert.Null(actual);
}
[Theory]
[InlineData(-1)]
[InlineData(0)]
[InlineData(2048)]
public void ReadStringsFrom_InvalidLimit_Empty(int charLimit)
{
byte[]? arr = new byte[1024];
var actual = arr.ReadStringsFrom(charLimit);
Assert.NotNull(actual);
Assert.Empty(actual);
}
[Fact]
public void ReadStringsFrom_NoValidStrings_Empty()
{
byte[]? arr = new byte[1024];
var actual = arr.ReadStringsFrom(4);
Assert.NotNull(actual);
Assert.Empty(actual);
}
[Fact]
public void ReadStringsFrom_AsciiStrings_Filled()
{
byte[]? arr =
[
.. Encoding.ASCII.GetBytes("TEST"),
.. new byte[] { 0x00 },
.. Encoding.ASCII.GetBytes("TWO"),
.. new byte[] { 0x00 },
.. Encoding.ASCII.GetBytes("DATA"),
.. new byte[] { 0x00 },
];
var actual = arr.ReadStringsFrom(4);
Assert.NotNull(actual);
Assert.Equal(2, actual.Count);
}
[Fact]
public void ReadStringsFrom_Latin1Strings_Filled()
{
byte[]? arr =
[
.. Encoding.Latin1.GetBytes("TEST"),
.. new byte[] { 0x00 },
.. Encoding.Latin1.GetBytes("TWO"),
.. new byte[] { 0x00 },
.. Encoding.Latin1.GetBytes("DATA"),
.. new byte[] { 0x00 },
];
var actual = arr.ReadStringsFrom(4);
Assert.NotNull(actual);
Assert.Equal(2, actual.Count);
}
[Fact]
public void ReadStringsFrom_UTF16_Filled()
{
byte[]? arr =
[
.. Encoding.Unicode.GetBytes("TEST"),
.. new byte[] { 0x00 },
.. Encoding.Unicode.GetBytes("TWO"),
.. new byte[] { 0x00 },
.. Encoding.Unicode.GetBytes("DATA"),
.. new byte[] { 0x00 },
];
var actual = arr.ReadStringsFrom(4);
Assert.NotNull(actual);
Assert.Equal(2, actual.Count);
}
[Fact]
public void ReadStringsFrom_Mixed_Filled()
{
byte[]? arr =
[
.. Encoding.ASCII.GetBytes("TEST1"),
.. new byte[] { 0x00 },
.. Encoding.ASCII.GetBytes("TWO1"),
.. new byte[] { 0x00 },
.. Encoding.ASCII.GetBytes("DATA1"),
.. new byte[] { 0x00 },
.. Encoding.Latin1.GetBytes("TEST2"),
.. new byte[] { 0x00 },
.. Encoding.Latin1.GetBytes("TWO2"),
.. new byte[] { 0x00 },
.. Encoding.Latin1.GetBytes("DATA2"),
.. new byte[] { 0x00 },
.. Encoding.Unicode.GetBytes("TEST3"),
.. new byte[] { 0x00 },
.. Encoding.Unicode.GetBytes("TWO3"),
.. new byte[] { 0x00 },
.. Encoding.Unicode.GetBytes("DATA3"),
.. new byte[] { 0x00 },
];
var actual = arr.ReadStringsFrom(5);
Assert.NotNull(actual);
Assert.Equal(6, actual.Count);
}
/// <summary>
/// This test is here mainly for performance testing
/// and should not be enabled unless there are changes
/// to the core reading methods that need comparison.
/// </summary>
// [Fact]
// public void ReadStringsFrom_Mixed_MASSIVE()
// {
// byte[]? arr =
// [
// .. Encoding.ASCII.GetBytes("TEST1"),
// .. new byte[] { 0x00 },
// .. Encoding.ASCII.GetBytes("TWO1"),
// .. new byte[] { 0x00 },
// .. Encoding.ASCII.GetBytes("DATA1"),
// .. new byte[] { 0x00 },
// .. Encoding.UTF8.GetBytes("TEST2"),
// .. new byte[] { 0x00 },
// .. Encoding.UTF8.GetBytes("TWO2"),
// .. new byte[] { 0x00 },
// .. Encoding.UTF8.GetBytes("DATA2"),
// .. new byte[] { 0x00 },
// .. Encoding.Unicode.GetBytes("TEST3"),
// .. new byte[] { 0x00 },
// .. Encoding.Unicode.GetBytes("TWO3"),
// .. new byte[] { 0x00 },
// .. Encoding.Unicode.GetBytes("DATA3"),
// .. new byte[] { 0x00 },
// ];
// arr = [.. arr, .. arr, .. arr, .. arr];
// arr = [.. arr, .. arr, .. arr, .. arr];
// arr = [.. arr, .. arr, .. arr, .. arr];
// arr = [.. arr, .. arr, .. arr, .. arr];
// arr = [.. arr, .. arr, .. arr, .. arr];
// arr = [.. arr, .. arr, .. arr, .. arr];
// arr = [.. arr, .. arr, .. arr, .. arr];
// arr = [.. arr, .. arr, .. arr, .. arr];
// arr = [.. arr, .. arr, .. arr, .. arr];
// arr = [.. arr, .. arr, .. arr, .. arr];
// // arr = [.. arr, .. arr, .. arr, .. arr];
// // arr = [.. arr, .. arr, .. arr, .. arr];
// var actual = arr.ReadStringsFrom(5);
// Assert.NotNull(actual);
// Assert.NotEmpty(actual);
// }
#endregion
#region ReadStringsWithEncoding
[Fact]
public void ReadStringsWithEncoding_Null_Empty()
{
byte[]? bytes = null;
var actual = bytes.ReadStringsWithEncoding(1, Encoding.ASCII);
Assert.Empty(actual);
}
[Fact]
public void ReadStringsWithEncoding_Empty_Empty()
{
byte[]? bytes = [];
var actual = bytes.ReadStringsWithEncoding(1, Encoding.ASCII);
Assert.Empty(actual);
}
[Theory]
[InlineData(-1)]
[InlineData(0)]
[InlineData(2048)]
public void ReadStringsWithEncoding_InvalidLimit_Empty(int charLimit)
{
byte[]? bytes = new byte[1024];
var actual = bytes.ReadStringsWithEncoding(charLimit, Encoding.ASCII);
Assert.Empty(actual);
}
[Fact]
public void ReadStringsWithEncoding_NoValidStrings_Empty()
{
byte[]? bytes = new byte[1024];
var actual = bytes.ReadStringsWithEncoding(5, Encoding.ASCII);
Assert.Empty(actual);
}
[Fact]
public void ReadStringsWithEncoding_AsciiStrings_Filled()
{
byte[]? bytes =
[
.. Encoding.ASCII.GetBytes("TEST"),
.. new byte[] { 0x00 },
.. Encoding.ASCII.GetBytes("ONE"),
.. new byte[] { 0x00 },
.. Encoding.ASCII.GetBytes("TWO"),
.. new byte[] { 0x00 },
.. Encoding.ASCII.GetBytes("DATA"),
.. new byte[] { 0x00 },
];
var actual = bytes.ReadStringsWithEncoding(4, Encoding.ASCII);
Assert.Equal(2, actual.Count);
}
[Fact]
public void ReadStringsWithEncoding_InvalidAsciiChars_Empty()
{
byte[]? arr =
[
0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F,
0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17,
0x18, 0x19, 0x1A, 0x1B, 0x1C, 0x1D, 0x1E, 0x1F,
.. Enumerable.Range(0x80, 0x80).Select(i => (byte)i),
];
var actual = arr.ReadStringsWithEncoding(1, Encoding.ASCII);
Assert.NotNull(actual);
Assert.Empty(actual);
}
[Fact]
public void ReadStringsWithEncoding_Latin1_Filled()
{
byte[]? bytes =
[
.. Encoding.Latin1.GetBytes("TEST"),
.. new byte[] { 0x00 },
.. Encoding.Latin1.GetBytes("ONE"),
.. new byte[] { 0x00 },
.. Encoding.Latin1.GetBytes("TWO"),
.. new byte[] { 0x00 },
.. Encoding.Latin1.GetBytes("DATA"),
.. new byte[] { 0x00 },
];
var actual = bytes.ReadStringsWithEncoding(4, Encoding.Latin1);
Assert.Equal(2, actual.Count);
}
[Fact]
public void ReadStringsWithEncoding_InvalidLatin1Chars_Empty()
{
byte[]? arr =
[
0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F,
0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17,
0x18, 0x19, 0x1A, 0x1B, 0x1C, 0x1D, 0x1E, 0x1F,
0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87,
0x88, 0x89, 0x8A, 0x8B, 0x8C, 0x8D, 0x8E, 0x8F,
0x90, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97,
0x98, 0x99, 0x9A, 0x9B, 0x9C, 0x9D, 0x9E, 0x9F,
];
var actual = arr.ReadStringsWithEncoding(1, Encoding.Latin1);
Assert.NotNull(actual);
Assert.Empty(actual);
}
[Fact]
public void ReadStringsWithEncoding_UTF8_Filled()
{
byte[]? bytes =
[
.. Encoding.UTF8.GetBytes("TEST"),
.. new byte[] { 0x00 },
.. Encoding.UTF8.GetBytes("ONE"),
.. new byte[] { 0x00 },
.. Encoding.UTF8.GetBytes("TWO"),
.. new byte[] { 0x00 },
.. Encoding.UTF8.GetBytes("DATA"),
.. new byte[] { 0x00 },
];
var actual = bytes.ReadStringsWithEncoding(4, Encoding.UTF8);
Assert.Equal(2, actual.Count);
}
[Fact]
public void ReadStringsWithEncoding_InvalidUTF8Chars_Empty()
{
byte[]? arr =
[
0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F,
0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17,
0x18, 0x19, 0x1A, 0x1B, 0x1C, 0x1D, 0x1E, 0x1F,
.. Enumerable.Range(0x80, 0x42).Select(i => (byte)i),
0xF5, 0xF6, 0xF7, 0xF8, 0xF9, 0xFA, 0xFB, 0xFC,
0xFD, 0xFE, 0xFF,
];
var actual = arr.ReadStringsWithEncoding(1, Encoding.UTF8);
Assert.NotNull(actual);
Assert.Empty(actual);
}
[Fact]
public void ReadStringsWithEncoding_UTF16_Filled()
{
byte[]? bytes =
[
.. Encoding.Unicode.GetBytes("TEST"),
.. new byte[] { 0x00 },
.. Encoding.Unicode.GetBytes("ONE"),
.. new byte[] { 0x00 },
.. Encoding.Unicode.GetBytes("TWO"),
.. new byte[] { 0x00 },
.. Encoding.Unicode.GetBytes("DATA"),
.. new byte[] { 0x00 },
];
var actual = bytes.ReadStringsWithEncoding(4, Encoding.Unicode);
Assert.Equal(2, actual.Count);
}
[Fact]
public void ReadStringsWithEncoding_InvalidUTF16Chars_Empty()
{
byte[]? arr =
[
0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F,
0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17,
0x18, 0x19, 0x1A, 0x1B, 0x1C, 0x1D, 0x1E, 0x1F,
];
var actual = arr.ReadStringsWithEncoding(1, Encoding.Unicode);
Assert.NotNull(actual);
Assert.Empty(actual);
}
[Fact]
public void ReadStringsWithEncoding_UTF32_Filled()
{
byte[]? bytes =
[
.. Encoding.UTF32.GetBytes("TEST"),
.. new byte[] { 0x00 },
.. Encoding.UTF32.GetBytes("ONE"),
.. new byte[] { 0x00 },
.. Encoding.UTF32.GetBytes("TWO"),
.. new byte[] { 0x00 },
.. Encoding.UTF32.GetBytes("DATA"),
.. new byte[] { 0x00 },
];
var actual = bytes.ReadStringsWithEncoding(4, Encoding.UTF32);
Assert.Equal(2, actual.Count);
}
[Fact]
public void ReadStringsWithEncoding_InvalidUTF32Chars_Empty()
{
byte[]? arr =
[
0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F,
0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17,
0x18, 0x19, 0x1A, 0x1B, 0x1C, 0x1D, 0x1E, 0x1F,
];
var actual = arr.ReadStringsWithEncoding(1, Encoding.UTF32);
Assert.NotNull(actual);
Assert.Empty(actual);
}
#endregion
}
}