davideandClaude Sonnet 5.5
5870de6fda
- tests/FakeClaude: eseguibile finto 'claude' configurabile con variabili d'ambiente (registro di argomenti/cwd/stdin, output, exit code, ritardo), con le prove FK-01…FK-05. - Test organizzati per livello (Gui/, Process/, Support/) e struttura descritta in TESTING.md. - MarkdownView: la parte sulle immagini passa in MarkdownView.Images.cs (partial), senza cambiare il comportamento. Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
53 lines
1.8 KiB
C#
53 lines
1.8 KiB
C#
using System.IO.Compression;
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namespace AgentWikiUi.Tests;
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/// <summary>Scrive PNG minimali (colore pieno) senza dipendere da Avalonia.</summary>
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static class PngFactory
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{
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public static byte[] Create(int width, int height)
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{
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var raw = new byte[height * (1 + width * 3)];
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for (var y = 0; y < height; y++)
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for (var x = 0; x < width; x++) raw[y * (1 + width * 3) + 1 + x * 3] = 200; // filtro 0 per riga, canale rosso
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using var ms = new MemoryStream();
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ms.Write([0x89, 0x50, 0x4E, 0x47, 0x0D, 0x0A, 0x1A, 0x0A]);
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var ihdr = new byte[13];
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WriteInt(ihdr, 0, width); WriteInt(ihdr, 4, height);
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ihdr[8] = 8; ihdr[9] = 2; // 8 bit, RGB
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Chunk(ms, "IHDR", ihdr);
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using (var z = new MemoryStream())
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{
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using (var zs = new ZLibStream(z, CompressionLevel.Fastest, leaveOpen: true)) zs.Write(raw);
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Chunk(ms, "IDAT", z.ToArray());
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}
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Chunk(ms, "IEND", []);
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return ms.ToArray();
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}
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static void WriteInt(byte[] b, int at, int v) { b[at] = (byte)(v >> 24); b[at + 1] = (byte)(v >> 16); b[at + 2] = (byte)(v >> 8); b[at + 3] = (byte)v; }
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static void Chunk(Stream s, string type, byte[] data)
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{
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var len = new byte[4]; WriteInt(len, 0, data.Length);
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s.Write(len);
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var body = new byte[4 + data.Length];
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for (var i = 0; i < 4; i++) body[i] = (byte)type[i];
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data.CopyTo(body, 4);
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s.Write(body);
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var crc = new byte[4]; WriteInt(crc, 0, (int)Crc32(body));
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s.Write(crc);
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}
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static uint Crc32(byte[] data)
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{
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var crc = 0xFFFFFFFFu;
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foreach (var b in data)
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{
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crc ^= b;
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for (var k = 0; k < 8; k++) crc = (crc & 1) != 0 ? (crc >> 1) ^ 0xEDB88320u : crc >> 1;
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}
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return ~crc;
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}
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}
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