From 6aa72c713ae4e76470d7a4371b52b3f643c02e4d Mon Sep 17 00:00:00 2001
From: Jamie Peabody <jpeabody@axway.com>
Date: Thu, 25 Aug 2022 13:30:45 +0100
Subject: [PATCH] Fixes #297

---
 lib/types/multipart.js       |  4 ++--
 test/test-types-multipart.js | 43 ++++++++++++++++++++++++++++++++++++
 2 files changed, 45 insertions(+), 2 deletions(-)

diff --git a/lib/types/multipart.js b/lib/types/multipart.js
index cc0d7bb..4b9a323 100644
--- a/lib/types/multipart.js
+++ b/lib/types/multipart.js
@@ -473,7 +473,7 @@ retrydata:
             }
 
             fileSize += chunk.length;
-            if (fileSize === fileSizeLimit) {
+            if (fileSize === fileSizeLimit && chunk.length < (end - start)) {
               if (chunk.length > 0)
                 this._fileStream.push(chunk);
               this._fileStream.emit('limit');
@@ -499,7 +499,7 @@ retrydata:
 
             fieldSize += actualLen;
             field.push(chunk);
-            if (fieldSize === fieldSizeLimit) {
+            if (fieldSize === fieldSizeLimit && chunk.length < (end - start)) {
               skipPart = true;
               partTruncated = true;
             }
diff --git a/test/test-types-multipart.js b/test/test-types-multipart.js
index 9755642..a7b58a2 100644
--- a/test/test-types-multipart.js
+++ b/test/test-types-multipart.js
@@ -180,6 +180,49 @@ const tests = [
     ],
     what: 'Fields and files (limits)'
   },
+  { source: [
+      ['-----------------------------paZqsnEHRufoShdX6fh0lUhXBP4k',
+       'Content-Disposition: form-data; name="file_name_0"',
+       '',
+       'super alpha file',
+       '-----------------------------paZqsnEHRufoShdX6fh0lUhXBP4k',
+       'Content-Disposition: form-data; '
+         + 'name="upload_file_0"; filename="1k_a.dat"',
+       'Content-Type: application/octet-stream',
+       '',
+       'ABCDEFGHIJKLMNOPQRSTUVWXYZ',
+       '-----------------------------paZqsnEHRufoShdX6fh0lUhXBP4k--'
+      ].join('\r\n')
+    ],
+    boundary: '---------------------------paZqsnEHRufoShdX6fh0lUhXBP4k',
+    limits: {
+      fileSize: 26,
+      fieldSize: 16
+    },
+    expected: [
+      { type: 'field',
+        name: 'file_name_0',
+        val: 'super alpha file',
+        info: {
+          nameTruncated: false,
+          valueTruncated: false,
+          encoding: '7bit',
+          mimeType: 'text/plain',
+        },
+      },
+      { type: 'file',
+        name: 'upload_file_0',
+        data: Buffer.from('ABCDEFGHIJKLMNOPQRSTUVWXYZ'),
+        info: {
+          filename: '1k_a.dat',
+          encoding: '7bit',
+          mimeType: 'application/octet-stream',
+        },
+        limited: false
+      },
+    ],
+    what: 'Fields and files (exact limits)'
+  },
   { source: [
       ['-----------------------------paZqsnEHRufoShdX6fh0lUhXBP4k',
        'Content-Disposition: form-data; name="file_name_0"',