Fix CPU unit tests (#239)

Support any amount of available cores on testing machine.

5 files changed, 50 insertions, 4 deletions

diff --git a/testcases/011-cpu-usage/cleanup.pl b/testcases/011-cpu-usage/cleanup.pl
new file mode 100644
index 0000000..ac341be
--- /dev/null
+++ b/testcases/011-cpu-usage/cleanup.pl
@@ -0,0 +1,15 @@
+#!/usr/bin/env perl
+
+use v5.10;
+use strict;
+use warnings;
+
+if ($#ARGV != 0 || ! -d $ARGV[0]) {
+    say "Error with cleanup script: argument not provided or not a directory";
+    exit 1;
+}
+
+my $output_file = "$ARGV[0]/stat";
+if (-f $output_file) {
+    unlink $output_file;
+}
diff --git a/testcases/011-cpu-usage/expected_output.pl b/testcases/011-cpu-usage/expected_output.pl
new file mode 100644
index 0000000..d8bf5bd
--- /dev/null
+++ b/testcases/011-cpu-usage/expected_output.pl
@@ -0,0 +1,12 @@
+#!/usr/bin/env perl
+
+use v5.10;
+use strict;
+use warnings;
+
+chomp(my $cpu_count = `grep -c -P '^processor\\s+:' /proc/cpuinfo`);
+if ($cpu_count == 1) {
+    print "all: 00% CPU_0: 00% CPU_1: \n";
+} else {
+    print "all: 50% CPU_0: 00% CPU_1: 100%\n";
+}
diff --git a/testcases/011-cpu-usage/expected_output.txt b/testcases/011-cpu-usage/expected_output.txt
deleted file mode 100644
index 930a2b5..0000000
--- a/testcases/011-cpu-usage/expected_output.txt
+++ /dev/null
@@ -1 +0,0 @@
-all: 50% CPU_0: 00% CPU_1: 100%
diff --git a/testcases/011-cpu-usage/setup.pl b/testcases/011-cpu-usage/setup.pl
new file mode 100644
index 0000000..d1e1512
--- /dev/null
+++ b/testcases/011-cpu-usage/setup.pl
@@ -0,0 +1,23 @@
+#!/usr/bin/env perl
+
+use v5.10;
+use strict;
+use warnings;
+
+if ($#ARGV != 0 || ! -d $ARGV[0]) {
+    say "Error with setup script: argument not provided or not a directory";
+    exit 1;
+}
+
+chomp(my $cpu_count = `grep -c -P '^processor\\s+:' /proc/cpuinfo`);
+my $output_file = "$ARGV[0]/stat";
+open(my $fh, '>', $output_file) or die "Could not open file '$output_file' $!";
+print $fh "cpu  0 0 0 0 0 0 0 0 0 0\n";
+print $fh "cpu0 0 0 0 300 0 0 0 0 0 0\n";
+if ($cpu_count > 1) {
+    print $fh "cpu1 100 100 100 0 0 0 0 0 0 0\n";
+}
+for (my $i = 2; $i <= $cpu_count; $i++) {
+    print $fh "cpu$i 0 0 0 0 0 0 0 0 0 0\n";
+}
+close $fh;
diff --git a/testcases/011-cpu-usage/stat b/testcases/011-cpu-usage/stat
deleted file mode 100644
index 9c77e7e..0000000
--- a/testcases/011-cpu-usage/stat
+++ /dev/null
@@ -1,3 +0,0 @@
-cpu  0 0 0 0 0 0 0 0 0 0
-cpu0 0 0 0 300 0 0 0 0 0 0
-cpu1 100 100 100 0 0 0 0 0 0 0