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# Copyright 2016 Yahoo Inc. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package TestUtils::OutputCapturer;
use Test::More;
use Yahoo::Vespa::ConsoleOutput;
BEGIN {
use base 'Exporter';
our @EXPORT = qw(
getOutput
isOutput
matchesOutput
);
}
Yahoo::Vespa::ConsoleOutput::setTerminalWidth(79);
our ($stdout, $stderr);
my $USE_COLORS = 1;
&openStreams();
END {
&closeStreams();
}
return 1;
sub useColors {
$USE_COLORS = $_[0];
&closeStreams();
&openStreams();
}
sub isOutput { # (stdout, stderr, test)
my ($expected_cout, $expected_cerr, $test) = @_;
my ($cout, $cerr) = &getOutput();
&diff($expected_cout, $cout);
ok ($cout eq $expected_cout, $test . " - stdout");
&diff($expected_cerr, $cerr);
ok ($cerr eq $expected_cerr, $test . " - stderr");
}
sub matchesOutput { # (stdout_pattern, stderr_pattern, test)
my ($cout_pat, $cerr_pat, $test) = @_;
my ($cout, $cerr) = &getOutput();
if ($cout !~ $cout_pat) {
diag("Output did not match standard out pattern:\n/$cout_pat/:\n$cout");
}
ok ($cout =~ $cout_pat, $test . " - stdout");
if ($cerr !~ $cerr_pat) {
diag("Stderr output did not match standard err pattern:\n"
. "/$cerr_pat/:\n$cerr");
}
ok ($cerr =~ $cerr_pat, $test . " - stdout");
}
sub getOutput {
my $cout = &getStdOut();
my $cerr = &getStdErr();
&closeStreams();
&openStreams();
return ($cout, $cerr);
}
sub openStreams {
open ($stdout, ">/tmp/vespaclient.perltest.stdout.log")
or die "Failed to create tmp file for stdout";
open ($stderr, ">/tmp/vespaclient.perltest.stderr.log")
or die "Failed to create tmp file for stdout";
Yahoo::Vespa::ConsoleOutput::initialize($stdout, $stderr, $USE_COLORS);
}
sub closeStreams {
close $stdout;
close $stderr;
system("rm /tmp/vespaclient.perltest.stdout.log");
system("rm /tmp/vespaclient.perltest.stderr.log");
}
sub getStdOut {
my $data = `cat /tmp/vespaclient.perltest.stdout.log`;
if (!defined $data) { $data = ''; }
return $data;
}
sub getStdErr {
my $data = `cat /tmp/vespaclient.perltest.stderr.log`;
if (!defined $data) { $data = ''; }
return $data;
}
sub diff {
my ($expected, $actual) = @_;
if ($expected eq $actual) { return; }
&writeToFile("/tmp/vespaclient.perltest.expected", $expected);
&writeToFile("/tmp/vespaclient.perltest.actual", $actual);
print "Output differs. Diff:\n";
system("diff -u /tmp/vespaclient.perltest.expected "
. "/tmp/vespaclient.perltest.actual");
system("rm -f /tmp/vespaclient.perltest.expected");
system("rm -f /tmp/vespaclient.perltest.actual");
}
sub writeToFile {
my ($file, $data) = @_;
my $fh;
open ($fh, ">$file") or die "Failed to open temp file for writing.";
print $fh $data;
close $fh;
}
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