From 79cad1342dbc9fa557ceadf6bfeea64cfe111de2 Mon Sep 17 00:00:00 2001
From: ousttrue <ousttrue@gmail.com>
Date: Tue, 18 Jan 2022 13:20:21 +0900
Subject: [PATCH] =?UTF-8?q?glb=20=E3=81=AE=20parse=20=E3=82=92=E5=8E=B3?=
 =?UTF-8?q?=E6=A0=BC=E3=81=AB?=
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---
 .../UniGLTF/Tests/UniGLTF/GlbParserTests.cs   | 39 ++++++++++++++++++-
 1 file changed, 38 insertions(+), 1 deletion(-)

diff --git a/Assets/UniGLTF/Tests/UniGLTF/GlbParserTests.cs b/Assets/UniGLTF/Tests/UniGLTF/GlbParserTests.cs
index 3acbc4a65..02de02b20 100644
--- a/Assets/UniGLTF/Tests/UniGLTF/GlbParserTests.cs
+++ b/Assets/UniGLTF/Tests/UniGLTF/GlbParserTests.cs
@@ -1,4 +1,6 @@
 using System;
+using System.IO;
+using System.Linq;
 using NUnit.Framework;
 
 namespace UniGLTF
@@ -37,5 +39,40 @@ namespace UniGLTF
             // NOTE: 大文字小文字が違うだけの名前は、同一としてみなされ、Suffix が付く。
             Assert.AreEqual("foobar__UNIGLTF__DUPLICATED__2", parsed.GLTF.textures[1].name);
         }
+
+        /// <summary>
+        /// ヘッダが正しいが、後ろが切れている場合に throw する
+        /// </summary>
+        [Test]
+        public void GlbLengthTest()
+        {
+            var env = System.Environment.GetEnvironmentVariable("GLTF_SAMPLE_MODELS");
+            if (string.IsNullOrEmpty(env))
+            {
+                return;
+            }
+            var root = new DirectoryInfo($"{env}/2.0");
+            if (!root.Exists)
+            {
+                return;
+            }
+
+            var path = Path.Combine(root.ToString(), "DamagedHelmet\\glTF-Binary\\DamagedHelmet.glb");
+            Assert.True(File.Exists(path));
+
+            var bytes = File.ReadAllBytes(path);
+            var data = new GlbBinaryParser(bytes, Path.GetFileNameWithoutExtension(path)).Parse();
+
+            // ２個目のチャンクを削る
+            var mod = bytes.Take(12 + 8 + data.Chunks[0].Bytes.Count).ToArray();
+            // 再パース
+
+            Assert.Throws<IOException>(() =>
+            {
+                var data2 = new GlbBinaryParser(mod, Path.GetFileNameWithoutExtension(path)).Parse();
+            });
+
+            var a = 0;
+        }
     }
-}
\ No newline at end of file
+}