Fix CA2022 warning: Avoid inexact read with 'System.IO.Stream.Read(byte[], int, int)'

Author: Jericho

Source/HttpMultipartParser.UnitTests/ParserScenarios/FileChunkStartsWithBOM.cs

@@ -63,21 +63,21 @@ public void CanHandleBOM()
 
 					// Read the padding and assert we get the expected value
 					var paddingBuffer = new byte[_padding.Length];
-					file.Read(paddingBuffer, 0, paddingBuffer.Length);
+					var readCount = file.Read(paddingBuffer, 0, paddingBuffer.Length);
 
 					Assert.Equal(_padding, Encoding.UTF8.GetString(paddingBuffer));
 
 					// Read the BOM and assert we get the expected value
 					var bomBuffer = new byte[_utf8BOMBinary.Length];
-					file.Read(bomBuffer, 0, bomBuffer.Length);
+					readCount = file.Read(bomBuffer, 0, bomBuffer.Length);
 
 					// If this assertion fails, it means that we have reproduced the problem described in GH-64
 					// If it succeeds, it means that the bug has been fixed.
 					Assert.Equal(_utf8BOMString, Encoding.UTF8.GetString(bomBuffer));
 
 					// Read the rest of the content and assert we get the expected value
 					var restOfContentBuffer = new byte[_fileContent.Length - _padding.Length - _utf8BOMString.Length];
-					file.Read(restOfContentBuffer, 0, restOfContentBuffer.Length);
+					readCount = file.Read(restOfContentBuffer, 0, restOfContentBuffer.Length);
 
 					Assert.Equal("Hello world", Encoding.UTF8.GetString(restOfContentBuffer));
 				}