tests: split example_filesystems into its own package

Running these tests from integration_tests' TestMain() was awkward
because they were run twice with unchanged settings.
integration_tests tests everything with OpenSSL and with native
Go crypto, but this does not take affect for the example filesystems.

To make this work, test_helpers is also split into its own package.

1 files changed, 0 insertions, 56 deletions

diff --git a/stress_tests/extractloop.bash b/stress_tests/extractloop.bash
deleted file mode 100755
index c488707..0000000
--- a/stress_tests/extractloop.bash
+++ /dev/null
@@ -1,56 +0,0 @@
-#!/bin/bash
-#
-# Mount a gocryptfs filesystem somewhere on /tmp, then run two parallel
-# infinite loops inside that do the following:
-# 1) Extract linux-3.0.tar.gz
-# 2) Verify the md5sums
-# 3) Delete, go to (1)
-#
-# This test is good at discovering inode-related memory leaks because it creates
-# huge numbers of files.
-
-set -eu
-
-cd "$(dirname "$0")"
-MD5="$PWD/extractloop.md5sums"
-
-# Setup
-cd /tmp
-wget -nv --show-progress -c https://www.kernel.org/pub/linux/kernel/v3.0/linux-3.0.tar.gz
-DIR1=$(mktemp -d)
-DIR2=$(mktemp -d)
-gocryptfs -q -init -extpass="echo test" $DIR1
-gocryptfs -q -extpass="echo test" -nosyslog $DIR1 $DIR2
-#gocryptfs -q -extpass="echo test" -nosyslog -memprofile /tmp/extractloop-mem $DIR1 $DIR2
-cd $DIR2
-
-# Cleanup trap
-# Note: gocryptfs may have already umounted itself because bash relays SIGINT
-# Just ignore fusermount errors.
-trap "cd /; fusermount -u -z $DIR2; rm -rf $DIR1 $DIR2" EXIT
-
-function loop {
-	# Note: In a subshell, $$ returns the PID of the *parent* shell,
-	# we need our own, which is why we have to use $BASHPID.
-	mkdir $BASHPID
-	cd $BASHPID
-
-	echo "[pid $BASHPID] Starting loop"
-
-	N=1
-	while true
-	do
-		t1=$SECONDS
-		tar xf /tmp/linux-3.0.tar.gz
-		md5sum --status -c $MD5
-		rm -Rf linux-3.0
-		t2=$SECONDS
-		delta=$((t2-t1))
-		echo "[pid $BASHPID] Iteration $N done, $delta seconds"
-		let N=$N+1
-	done
-}
-
-loop &
-loop &
-wait