How do you test code that uses IO layers and binmode?

Testing code that uses IO layers and binmode in Perl can be challenging. Properly managing file encoding and ensuring the correct handling of input/output operations is crucial for robust applications. Below is a simple example of how to use binmode to handle file operations in Perl.


        #!/usr/bin/perl
        use strict;
        use warnings;

        # Open a file for reading with UTF-8 encoding
        open my $fh, '<:encoding(UTF-8)', 'data.txt' or die "Could not open file: $!";
        
        # Read and print each line from the file
        while (my $line = <$fh>) {
            print $line;
        }
        
        close $fh;
        
        # Open a file for writing with UTF-8 encoding
        open my $out_fh, '>:encoding(UTF-8)', 'output.txt' or die "Could not open file: $!";
        print $out_fh "Hello, World!\n";
        close $out_fh;

How do you test code that uses IO layers and binmode?

Popular Topics

Recent Languages

How do you test code that uses IO layers and binmode?

Related Questions

Popular Topics

Recent Languages