mirror of
https://github.com/SabreTools/SabreTools.IO.git
synced 2026-05-07 04:54:04 +00:00
449 lines
15 KiB
C#
449 lines
15 KiB
C#
using System.Linq;
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using System.Text;
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using Xunit;
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namespace SabreTools.Text.Extensions.Test
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{
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public class ByteArrayReaderExtensionsTests
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{
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#region ReadNullTerminatedString
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[Fact]
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public void ReadNullTerminatedAnsiStringTest()
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{
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int offset = 0;
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byte[] bytes = [0x41, 0x42, 0x43, 0x00];
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string? actual = bytes.ReadNullTerminatedString(ref offset, Encoding.ASCII);
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Assert.Equal("ABC", actual);
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}
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[Fact]
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public void ReadNullTerminatedLatin1StringTest()
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{
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int offset = 0;
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byte[] bytes = [0x41, 0x42, 0x43, 0x00];
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string? actual = bytes.ReadNullTerminatedString(ref offset, Encoding.Latin1);
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Assert.Equal("ABC", actual);
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}
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[Fact]
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public void ReadNullTerminatedUTF8StringTest()
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{
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int offset = 0;
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byte[] bytes = [0x41, 0x42, 0x43, 0x00];
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string? actual = bytes.ReadNullTerminatedString(ref offset, Encoding.UTF8);
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Assert.Equal("ABC", actual);
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}
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[Fact]
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public void ReadNullTerminatedUnicodeStringTest()
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{
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int offset = 0;
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byte[] bytes = [0x41, 0x00, 0x42, 0x00, 0x43, 0x00, 0x00, 0x00];
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string? actual = bytes.ReadNullTerminatedString(ref offset, Encoding.Unicode);
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Assert.Equal("ABC", actual);
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}
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[Fact]
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public void ReadNullTerminatedBigEndianUnicodeStringTest()
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{
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int offset = 0;
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byte[] bytes = [0x00, 0x41, 0x00, 0x42, 0x00, 0x43, 0x00, 0x00];
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string? actual = bytes.ReadNullTerminatedString(ref offset, Encoding.BigEndianUnicode);
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Assert.Equal("ABC", actual);
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}
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[Fact]
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public void ReadNullTerminatedUTF32StringTest()
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{
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int offset = 0;
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byte[] bytes = [0x41, 0x00, 0x00, 0x00, 0x42, 0x00, 0x00, 0x00, 0x43, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00];
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string? actual = bytes.ReadNullTerminatedString(ref offset, Encoding.UTF32);
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Assert.Equal("ABC", actual);
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}
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#endregion
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#region ReadStringsFrom
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[Fact]
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public void ReadStringsFrom_Null_Null()
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{
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byte[]? arr = null;
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var actual = arr.ReadStringsFrom(3);
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Assert.Null(actual);
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}
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[Fact]
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public void ReadStringsFrom_Empty_Null()
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{
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byte[]? arr = [];
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var actual = arr.ReadStringsFrom(3);
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Assert.Null(actual);
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}
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[Theory]
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[InlineData(-1)]
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[InlineData(0)]
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[InlineData(2048)]
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public void ReadStringsFrom_InvalidLimit_Empty(int charLimit)
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{
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byte[]? arr = new byte[1024];
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var actual = arr.ReadStringsFrom(charLimit);
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Assert.NotNull(actual);
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Assert.Empty(actual);
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}
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[Fact]
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public void ReadStringsFrom_NoValidStrings_Empty()
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{
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byte[]? arr = new byte[1024];
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var actual = arr.ReadStringsFrom(4);
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Assert.NotNull(actual);
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Assert.Empty(actual);
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}
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[Fact]
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public void ReadStringsFrom_AsciiStrings_Filled()
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{
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byte[]? arr =
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[
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.. Encoding.ASCII.GetBytes("TEST"),
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.. new byte[] { 0x00 },
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.. Encoding.ASCII.GetBytes("TWO"),
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.. new byte[] { 0x00 },
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.. Encoding.ASCII.GetBytes("DATA"),
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.. new byte[] { 0x00 },
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];
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var actual = arr.ReadStringsFrom(4);
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Assert.NotNull(actual);
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Assert.Equal(2, actual.Count);
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}
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[Fact]
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public void ReadStringsFrom_Latin1Strings_Filled()
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{
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byte[]? arr =
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[
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.. Encoding.Latin1.GetBytes("TEST"),
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.. new byte[] { 0x00 },
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.. Encoding.Latin1.GetBytes("TWO"),
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.. new byte[] { 0x00 },
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.. Encoding.Latin1.GetBytes("DATA"),
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.. new byte[] { 0x00 },
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];
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var actual = arr.ReadStringsFrom(4);
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Assert.NotNull(actual);
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Assert.Equal(2, actual.Count);
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}
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[Fact]
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public void ReadStringsFrom_UTF16_Filled()
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{
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byte[]? arr =
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[
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.. Encoding.Unicode.GetBytes("TEST"),
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.. new byte[] { 0x00 },
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.. Encoding.Unicode.GetBytes("TWO"),
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.. new byte[] { 0x00 },
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.. Encoding.Unicode.GetBytes("DATA"),
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.. new byte[] { 0x00 },
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];
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var actual = arr.ReadStringsFrom(4);
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Assert.NotNull(actual);
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Assert.Equal(2, actual.Count);
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}
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[Fact]
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public void ReadStringsFrom_Mixed_Filled()
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{
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byte[]? arr =
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[
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.. Encoding.ASCII.GetBytes("TEST1"),
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.. new byte[] { 0x00 },
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.. Encoding.ASCII.GetBytes("TWO1"),
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.. new byte[] { 0x00 },
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.. Encoding.ASCII.GetBytes("DATA1"),
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.. new byte[] { 0x00 },
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.. Encoding.Latin1.GetBytes("TEST2"),
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.. new byte[] { 0x00 },
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.. Encoding.Latin1.GetBytes("TWO2"),
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.. new byte[] { 0x00 },
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.. Encoding.Latin1.GetBytes("DATA2"),
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.. new byte[] { 0x00 },
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.. Encoding.Unicode.GetBytes("TEST3"),
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.. new byte[] { 0x00 },
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.. Encoding.Unicode.GetBytes("TWO3"),
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.. new byte[] { 0x00 },
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.. Encoding.Unicode.GetBytes("DATA3"),
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.. new byte[] { 0x00 },
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];
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var actual = arr.ReadStringsFrom(5);
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Assert.NotNull(actual);
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Assert.Equal(6, actual.Count);
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}
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/// <summary>
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/// This test is here mainly for performance testing
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/// and should not be enabled unless there are changes
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/// to the core reading methods that need comparison.
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/// </summary>
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// [Fact]
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// public void ReadStringsFrom_Mixed_MASSIVE()
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// {
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// byte[]? arr =
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// [
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// .. Encoding.ASCII.GetBytes("TEST1"),
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// .. new byte[] { 0x00 },
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// .. Encoding.ASCII.GetBytes("TWO1"),
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// .. new byte[] { 0x00 },
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// .. Encoding.ASCII.GetBytes("DATA1"),
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// .. new byte[] { 0x00 },
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// .. Encoding.UTF8.GetBytes("TEST2"),
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// .. new byte[] { 0x00 },
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// .. Encoding.UTF8.GetBytes("TWO2"),
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// .. new byte[] { 0x00 },
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// .. Encoding.UTF8.GetBytes("DATA2"),
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// .. new byte[] { 0x00 },
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// .. Encoding.Unicode.GetBytes("TEST3"),
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// .. new byte[] { 0x00 },
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// .. Encoding.Unicode.GetBytes("TWO3"),
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// .. new byte[] { 0x00 },
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// .. Encoding.Unicode.GetBytes("DATA3"),
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// .. new byte[] { 0x00 },
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// ];
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// arr = [.. arr, .. arr, .. arr, .. arr];
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// arr = [.. arr, .. arr, .. arr, .. arr];
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// arr = [.. arr, .. arr, .. arr, .. arr];
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// arr = [.. arr, .. arr, .. arr, .. arr];
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// arr = [.. arr, .. arr, .. arr, .. arr];
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// arr = [.. arr, .. arr, .. arr, .. arr];
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// arr = [.. arr, .. arr, .. arr, .. arr];
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// arr = [.. arr, .. arr, .. arr, .. arr];
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// arr = [.. arr, .. arr, .. arr, .. arr];
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// arr = [.. arr, .. arr, .. arr, .. arr];
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// // arr = [.. arr, .. arr, .. arr, .. arr];
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// // arr = [.. arr, .. arr, .. arr, .. arr];
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// var actual = arr.ReadStringsFrom(5);
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// Assert.NotNull(actual);
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// Assert.NotEmpty(actual);
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// }
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#endregion
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#region ReadStringsWithEncoding
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[Fact]
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public void ReadStringsWithEncoding_Null_Empty()
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{
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byte[]? bytes = null;
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var actual = bytes.ReadStringsWithEncoding(1, Encoding.ASCII);
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Assert.Empty(actual);
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}
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[Fact]
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public void ReadStringsWithEncoding_Empty_Empty()
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{
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byte[]? bytes = [];
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var actual = bytes.ReadStringsWithEncoding(1, Encoding.ASCII);
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Assert.Empty(actual);
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}
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[Theory]
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[InlineData(-1)]
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[InlineData(0)]
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[InlineData(2048)]
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public void ReadStringsWithEncoding_InvalidLimit_Empty(int charLimit)
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{
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byte[]? bytes = new byte[1024];
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var actual = bytes.ReadStringsWithEncoding(charLimit, Encoding.ASCII);
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Assert.Empty(actual);
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}
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[Fact]
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public void ReadStringsWithEncoding_NoValidStrings_Empty()
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{
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byte[]? bytes = new byte[1024];
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var actual = bytes.ReadStringsWithEncoding(5, Encoding.ASCII);
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Assert.Empty(actual);
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}
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[Fact]
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public void ReadStringsWithEncoding_AsciiStrings_Filled()
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{
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byte[]? bytes =
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[
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.. Encoding.ASCII.GetBytes("TEST"),
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.. new byte[] { 0x00 },
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.. Encoding.ASCII.GetBytes("ONE"),
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.. new byte[] { 0x00 },
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.. Encoding.ASCII.GetBytes("TWO"),
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.. new byte[] { 0x00 },
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.. Encoding.ASCII.GetBytes("DATA"),
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.. new byte[] { 0x00 },
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];
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var actual = bytes.ReadStringsWithEncoding(4, Encoding.ASCII);
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Assert.Equal(2, actual.Count);
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}
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[Fact]
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public void ReadStringsWithEncoding_InvalidAsciiChars_Empty()
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{
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byte[]? arr =
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[
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0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
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0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F,
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0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17,
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0x18, 0x19, 0x1A, 0x1B, 0x1C, 0x1D, 0x1E, 0x1F,
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.. Enumerable.Range(0x80, 0x80).Select(i => (byte)i),
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];
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var actual = arr.ReadStringsWithEncoding(1, Encoding.ASCII);
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Assert.NotNull(actual);
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Assert.Empty(actual);
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}
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[Fact]
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public void ReadStringsWithEncoding_Latin1_Filled()
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{
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byte[]? bytes =
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[
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.. Encoding.Latin1.GetBytes("TEST"),
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.. new byte[] { 0x00 },
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.. Encoding.Latin1.GetBytes("ONE"),
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.. new byte[] { 0x00 },
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.. Encoding.Latin1.GetBytes("TWO"),
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.. new byte[] { 0x00 },
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.. Encoding.Latin1.GetBytes("DATA"),
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.. new byte[] { 0x00 },
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];
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var actual = bytes.ReadStringsWithEncoding(4, Encoding.Latin1);
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Assert.Equal(2, actual.Count);
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}
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[Fact]
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public void ReadStringsWithEncoding_InvalidLatin1Chars_Empty()
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{
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byte[]? arr =
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[
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0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
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0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F,
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0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17,
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0x18, 0x19, 0x1A, 0x1B, 0x1C, 0x1D, 0x1E, 0x1F,
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0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87,
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0x88, 0x89, 0x8A, 0x8B, 0x8C, 0x8D, 0x8E, 0x8F,
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0x90, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97,
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0x98, 0x99, 0x9A, 0x9B, 0x9C, 0x9D, 0x9E, 0x9F,
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];
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var actual = arr.ReadStringsWithEncoding(1, Encoding.Latin1);
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Assert.NotNull(actual);
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Assert.Empty(actual);
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}
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[Fact]
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public void ReadStringsWithEncoding_UTF8_Filled()
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{
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byte[]? bytes =
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[
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.. Encoding.UTF8.GetBytes("TEST"),
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.. new byte[] { 0x00 },
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.. Encoding.UTF8.GetBytes("ONE"),
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.. new byte[] { 0x00 },
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.. Encoding.UTF8.GetBytes("TWO"),
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.. new byte[] { 0x00 },
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.. Encoding.UTF8.GetBytes("DATA"),
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.. new byte[] { 0x00 },
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];
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var actual = bytes.ReadStringsWithEncoding(4, Encoding.UTF8);
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Assert.Equal(2, actual.Count);
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}
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[Fact]
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public void ReadStringsWithEncoding_InvalidUTF8Chars_Empty()
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{
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byte[]? arr =
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[
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0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
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0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F,
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0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17,
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0x18, 0x19, 0x1A, 0x1B, 0x1C, 0x1D, 0x1E, 0x1F,
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.. Enumerable.Range(0x80, 0x42).Select(i => (byte)i),
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0xF5, 0xF6, 0xF7, 0xF8, 0xF9, 0xFA, 0xFB, 0xFC,
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0xFD, 0xFE, 0xFF,
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];
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var actual = arr.ReadStringsWithEncoding(1, Encoding.UTF8);
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Assert.NotNull(actual);
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Assert.Empty(actual);
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}
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[Fact]
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public void ReadStringsWithEncoding_UTF16_Filled()
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{
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byte[]? bytes =
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[
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.. Encoding.Unicode.GetBytes("TEST"),
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.. new byte[] { 0x00 },
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.. Encoding.Unicode.GetBytes("ONE"),
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.. new byte[] { 0x00 },
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.. Encoding.Unicode.GetBytes("TWO"),
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.. new byte[] { 0x00 },
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.. Encoding.Unicode.GetBytes("DATA"),
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.. new byte[] { 0x00 },
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];
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var actual = bytes.ReadStringsWithEncoding(4, Encoding.Unicode);
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Assert.Equal(2, actual.Count);
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}
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[Fact]
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public void ReadStringsWithEncoding_InvalidUTF16Chars_Empty()
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{
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byte[]? arr =
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[
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0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
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0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F,
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0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17,
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0x18, 0x19, 0x1A, 0x1B, 0x1C, 0x1D, 0x1E, 0x1F,
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];
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var actual = arr.ReadStringsWithEncoding(1, Encoding.Unicode);
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Assert.NotNull(actual);
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Assert.Empty(actual);
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}
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[Fact]
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public void ReadStringsWithEncoding_UTF32_Filled()
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{
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byte[]? bytes =
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[
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.. Encoding.UTF32.GetBytes("TEST"),
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.. new byte[] { 0x00 },
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.. Encoding.UTF32.GetBytes("ONE"),
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.. new byte[] { 0x00 },
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.. Encoding.UTF32.GetBytes("TWO"),
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.. new byte[] { 0x00 },
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.. Encoding.UTF32.GetBytes("DATA"),
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.. new byte[] { 0x00 },
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];
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var actual = bytes.ReadStringsWithEncoding(4, Encoding.UTF32);
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Assert.Equal(2, actual.Count);
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}
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[Fact]
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public void ReadStringsWithEncoding_InvalidUTF32Chars_Empty()
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{
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byte[]? arr =
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[
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0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
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0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F,
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0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17,
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0x18, 0x19, 0x1A, 0x1B, 0x1C, 0x1D, 0x1E, 0x1F,
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];
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var actual = arr.ReadStringsWithEncoding(1, Encoding.UTF32);
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Assert.NotNull(actual);
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Assert.Empty(actual);
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}
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#endregion
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}
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}
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