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Posted to dev@commons.apache.org by Anthony Green <gr...@redhat.com> on 2006/07/14 08:53:01 UTC

[Patch] Fix commons-io test code

This support routine from the commons-io project test code assumed that
FileReader.read(byte[]) would always read the entire file.  There's no
such guarantee, and some tests were failing on GNU Classpath based VMs
because of this.

Thanks,

AG



--- src/test/org/apache/commons/io/testtools/FileBasedTestCase.java~	2006-07-13 23:44:13.000000000 -0700
+++ src/test/org/apache/commons/io/testtools/FileBasedTestCase.java	2006-07-13 23:44:20.000000000 -0700
@@ -167,18 +171,22 @@
         throws IOException
     {
         Reader ir = new java.io.FileReader( file );
-        try {
-            char[] c1 = new char[ c0.length ];
-            int numRead = ir.read( c1 );
-            assertTrue( "Different number of bytes", numRead == c0.length );
-            for( int i = 0;
-                 i < numRead;
-                 assertTrue( "Byte " + i + " differs (" + c0[ i ] + " != " + c1[ i ] + ")", 
-                    c0[ i ] == c1[ i ] ), i++
-                );
-        } finally {
-            ir.close();
-        }
+	int count = 0, numRead = 0;
+	char[] c1 = new char[ c0.length ];
+	try {
+	  while (count < c0.length)
+	    {
+	      numRead = ir.read( c1, count, c0.length);
+	      for( int i = count;
+		   i < count+numRead;
+		   assertTrue( "Byte " + i + " differs (" + c0[ i ] + " != " + c1[ i ] + ")", 
+			       c0[ i ] == c1[ i ] ), i++
+		   );
+	      count += numRead;
+	    }
+	} finally {
+	  ir.close();
+	}
     }
 
     protected void checkWrite(OutputStream output) throws Exception {



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Re: [Patch] Fix commons-io test code

Posted by Stephen Colebourne <sc...@btopenworld.com>.
Raised and fixed as http://issues.apache.org/jira/browse/IO-96 (eventually!)
thanks
Stephen

Anthony Green wrote:
> This support routine from the commons-io project test code assumed that
> FileReader.read(byte[]) would always read the entire file.  There's no
> such guarantee, and some tests were failing on GNU Classpath based VMs
> because of this.
> 
> Thanks,
> 
> AG
> 
> 
> 
> --- src/test/org/apache/commons/io/testtools/FileBasedTestCase.java~	2006-07-13 23:44:13.000000000 -0700
> +++ src/test/org/apache/commons/io/testtools/FileBasedTestCase.java	2006-07-13 23:44:20.000000000 -0700
> @@ -167,18 +171,22 @@
>          throws IOException
>      {
>          Reader ir = new java.io.FileReader( file );
> -        try {
> -            char[] c1 = new char[ c0.length ];
> -            int numRead = ir.read( c1 );
> -            assertTrue( "Different number of bytes", numRead == c0.length );
> -            for( int i = 0;
> -                 i < numRead;
> -                 assertTrue( "Byte " + i + " differs (" + c0[ i ] + " != " + c1[ i ] + ")", 
> -                    c0[ i ] == c1[ i ] ), i++
> -                );
> -        } finally {
> -            ir.close();
> -        }
> +	int count = 0, numRead = 0;
> +	char[] c1 = new char[ c0.length ];
> +	try {
> +	  while (count < c0.length)
> +	    {
> +	      numRead = ir.read( c1, count, c0.length);
> +	      for( int i = count;
> +		   i < count+numRead;
> +		   assertTrue( "Byte " + i + " differs (" + c0[ i ] + " != " + c1[ i ] + ")", 
> +			       c0[ i ] == c1[ i ] ), i++
> +		   );
> +	      count += numRead;
> +	    }
> +	} finally {
> +	  ir.close();
> +	}
>      }
>  
>      protected void checkWrite(OutputStream output) throws Exception {
> 
> 
> 
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> 
> 

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