Fix a minor bug in the runtests.sh. (#216)

This commit fixes a minor bug in `scripts/runtests.sh`: this script is run with
POSIX sh on linux machines, meaning that `[[` are not recognized.
However, `[[ … ]]` was used.

Because `set -e` was not set, the minor bug described above did not lead to a
CI failure.

This commit fixes the `[[ … ]]` by using a simple `if grep`.
It also sets `set -e` at the top of the file in order to catch any potential future mistakes.

Finally, this commit also fixes minor warnings raised by [ShellCheck]. To display those warnings,
one can simply run `shellcheck scripts/runtests.sh`.

[ShellCheck]: https://www.shellcheck.net/

scripts/runtests.sh

@@ -1,22 +1,23 @@
 #!/bin/sh
 
+set -e
+
 rv=0
 
 provider2openssl() {
     echo
     echo "Testing oqsprovider->oqs-openssl interop for $1:"
-    $OQS_PROVIDER_TESTSCRIPTS/oqsprovider-certgen.sh $1 && $OQS_PROVIDER_TESTSCRIPTS/oqsprovider-cmssign.sh $1 sha3-384 && $OQS_PROVIDER_TESTSCRIPTS/oqs-openssl-certverify.sh $1 && $OQS_PROVIDER_TESTSCRIPTS/oqs-openssl-cmsverify.sh $1
+    "${OQS_PROVIDER_TESTSCRIPTS}/oqsprovider-certgen.sh" "$1" && "${OQS_PROVIDER_TESTSCRIPTS}/oqsprovider-cmssign.sh" "$1" sha3-384 && "${OQS_PROVIDER_TESTSCRIPTS}/oqs-openssl-certverify.sh" "$1" && "${OQS_PROVIDER_TESTSCRIPTS}/oqs-openssl-cmsverify.sh" "$1"
 }
 
 openssl2provider() {
     echo
     echo "Testing oqs-openssl->oqsprovider interop for $1:"
-    $OQS_PROVIDER_TESTSCRIPTS/oqs-openssl-certgen.sh $1 && $OQS_PROVIDER_TESTSCRIPTS/oqs-openssl-cmssign.sh $1 && $OQS_PROVIDER_TESTSCRIPTS/oqsprovider-certverify.sh $1 && $OQS_PROVIDER_TESTSCRIPTS/oqsprovider-cmsverify.sh $1
+    "${OQS_PROVIDER_TESTSCRIPTS}/oqs-openssl-certgen.sh" "$1" && "${OQS_PROVIDER_TESTSCRIPTS}/oqs-openssl-cmssign.sh" "$1" && "${OQS_PROVIDER_TESTSCRIPTS}/oqsprovider-certverify.sh" "$1" && "${OQS_PROVIDER_TESTSCRIPTS}/oqsprovider-cmsverify.sh" "$1"
 }
 
 localalgtest() {
-    $OQS_PROVIDER_TESTSCRIPTS/oqsprovider-certgen.sh $1 >> interop.log 2>&1 && $OQS_PROVIDER_TESTSCRIPTS/oqsprovider-certverify.sh $1 >> interop.log 2>&1 && $OQS_PROVIDER_TESTSCRIPTS/oqsprovider-cmssign.sh $1 >> interop.log 2>&1 &&  $OQS_PROVIDER_TESTSCRIPTS/oqsprovider-ca.sh $1 >> interop.log 2>&1
-    if [ $? -ne 0 ]; then
+    if ! ( "${OQS_PROVIDER_TESTSCRIPTS}/oqsprovider-certgen.sh" "$1" >> interop.log 2>&1 && "${OQS_PROVIDER_TESTSCRIPTS}/oqsprovider-certverify.sh" "$1" >> interop.log 2>&1 && "${OQS_PROVIDER_TESTSCRIPTS}/oqsprovider-cmssign.sh" "$1" >> interop.log 2>&1 &&  "${OQS_PROVIDER_TESTSCRIPTS}/oqsprovider-ca.sh" "$1" >> interop.log 2>&1 ); then
         echo "localalgtest $1 failed. Exiting.".
         cat interop.log
         exit 1
@@ -26,131 +27,128 @@ localalgtest() {
 interop() {
     echo ".\c"
     # check if we want to run this algorithm:
-    if [ ! -z "$OQS_SKIP_TESTS" ]; then
-        GREPTEST=$(echo $OQS_SKIP_TESTS | sed "s/\,/\\\|/g")
-        if echo $1 | grep -q "$GREPTEST"; then
+    if [ -n "${OQS_SKIP_TESTS}" ]; then
+        GREPTEST=$(echo "${OQS_SKIP_TESTS}" | sed "s/\,/\\\|/g")
+        if echo "$1" | grep -q "${GREPTEST}"; then
             echo "Not testing $1" >> interop.log
             return
         fi
     fi
 
     # Check whether algorithm is supported at all:
-    $OPENSSL_APP list -signature-algorithms | grep $1 > /dev/null 2>&1
-    if [ $? -ne 1 ]; then
-	if [ -z "$LOCALTESTONLY" ]; then
-            provider2openssl $1 >> interop.log 2>&1 && openssl2provider $1 >> interop.log 2>&1
+    retcode=0
+    "${OPENSSL_APP}" list -signature-algorithms | grep -q "$1" || retcode=$?
+    if [ "${retcode}" -ne 1 ]; then
+	if [ -z "${LOCALTESTONLY}" ]; then
+            provider2openssl "$1" >> interop.log 2>&1 && openssl2provider "$1" >> interop.log 2>&1
 	else
-            localalgtest $1
+            localalgtest "$1"
         fi
     else
         echo "Algorithm $1 not enabled. Exit testing."
         exit 1
     fi
 
-    if [ $? -ne 0 ]; then
+    if [ "${retcode}" -ne 0 ]; then
         echo "Test for $1 failed. Terminating testing."
         cat interop.log
         exit 1
     fi
 }
 
-if [ -z "$OQS_PROVIDER_TESTSCRIPTS" ]; then
-    export OQS_PROVIDER_TESTSCRIPTS=$(pwd)/scripts
+if [ -z "${OQS_PROVIDER_TESTSCRIPTS}" ]; then
+    export OQS_PROVIDER_TESTSCRIPTS="$(pwd)/scripts"
 fi
 
-if [ ! -z "$OPENSSL_INSTALL" ]; then
+if [ -n "${OPENSSL_INSTALL}" ]; then
     # trying to set config variables suitably for pre-existing OpenSSL installation
-    if [ -f $OPENSSL_INSTALL/bin/openssl ]; then
-        export OPENSSL_APP=$OPENSSL_INSTALL/bin/openssl
+    if [ -f "${OPENSSL_INSTALL}/bin/openssl" ]; then
+        export OPENSSL_APP="${OPENSSL_INSTALL}/bin/openssl"
     fi
-    if [ -z "$LD_LIBRARY_PATH" ]; then
-        if [ -d $OPENSSL_INSTALL/lib64 ]; then
-            export LD_LIBRARY_PATH=$OPENSSL_INSTALL/lib64
-        elif [ -d $OPENSSL_INSTALL/lib ]; then
-            export LD_LIBRARY_PATH=$OPENSSL_INSTALL/lib
+    if [ -z "${LD_LIBRARY_PATH}" ]; then
+        if [ -d "${OPENSSL_INSTALL}/lib64" ]; then
+            export LD_LIBRARY_PATH="${OPENSSL_INSTALL}/lib64"
+        elif [ -d "${OPENSSL_INSTALL}/lib" ]; then
+            export LD_LIBRARY_PATH="${OPENSSL_INSTALL}/lib"
         fi
     fi
-    if [ -f $OPENSSL_INSTALL/ssl/openssl.cnf ]; then
-        export OPENSSL_CONF=$OPENSSL_INSTALL/ssl/openssl.cnf
+    if [ -f "${OPENSSL_INSTALL}/ssl/openssl.cnf" ]; then
+        export OPENSSL_CONF="${OPENSSL_INSTALL}/ssl/openssl.cnf"
     fi
 fi
 
-if [ -z "$OPENSSL_CONF" ]; then
-    export OPENSSL_CONF=$(pwd)/scripts/openssl-ca.cnf
+if [ -z "${OPENSSL_CONF}" ]; then
+    export OPENSSL_CONF="$(pwd)/scripts/openssl-ca.cnf"
 fi
 
-if [ -z "$OPENSSL_APP" ]; then
-    if [ -f $(pwd)/openssl/apps/openssl ]; then
-        export OPENSSL_APP=$(pwd)/openssl/apps/openssl
+if [ -z "${OPENSSL_APP}" ]; then
+    if [ -f "$(pwd)/openssl/apps/openssl" ]; then
+        export OPENSSL_APP="$(pwd)/openssl/apps/openssl"
     else # if no local openssl src directory is found, rely on PATH...
         export OPENSSL_APP=openssl
     fi
 fi
 
-if [ -z "$OPENSSL_MODULES" ]; then
-    export OPENSSL_MODULES=$(pwd)/_build/lib
+if [ -z "${OPENSSL_MODULES}" ]; then
+    export OPENSSL_MODULES="$(pwd)/_build/lib"
 fi
 
-if [ -z "$LD_LIBRARY_PATH" ]; then
-    if [ -d $(pwd)/.local/lib64 ]; then
-        export LD_LIBRARY_PATH=$(pwd)/.local/lib64
+if [ -z "${LD_LIBRARY_PATH}" ]; then
+    if [ -d "$(pwd)/.local/lib64" ]; then
+        export LD_LIBRARY_PATH="$(pwd)/.local/lib64"
     else
-        if [ -d $(pwd)/.local/lib ]; then
-            export LD_LIBRARY_PATH=$(pwd)/.local/lib
+        if [ -d "$(pwd)/.local/lib" ]; then
+            export LD_LIBRARY_PATH="$(pwd)/.local/lib"
         fi
     fi
 fi
 
-if [ ! -z "$OQS_SKIP_TESTS" ]; then
-   echo "Skipping algs $OQS_SKIP_TESTS"
+if [ -n "${OQS_SKIP_TESTS}" ]; then
+   echo "Skipping algs ${OQS_SKIP_TESTS}"
 fi
 
 # Set OSX DYLD_LIBRARY_PATH if not already externally set
-if [ -z "$DYLD_LIBRARY_PATH" ]; then
-    export DYLD_LIBRARY_PATH=$LD_LIBRARY_PATH
+if [ -z "${DYLD_LIBRARY_PATH}" ]; then
+    export DYLD_LIBRARY_PATH="${LD_LIBRARY_PATH}"
 fi
 
 echo "Test setup:"
-echo "LD_LIBRARY_PATH=$LD_LIBRARY_PATH"
-echo "OPENSSL_APP=$OPENSSL_APP"
-echo "OPENSSL_CONF=$OPENSSL_CONF"
-echo "OPENSSL_MODULES=$OPENSSL_MODULES"
-if [[ "$OSTYPE" == "darwin"* ]]; then
-echo "DYLD_LIBRARY_PATH=$DYLD_LIBRARY_PATH"
+echo "LD_LIBRARY_PATH=${LD_LIBRARY_PATH}"
+echo "OPENSSL_APP=${OPENSSL_APP}"
+echo "OPENSSL_CONF=${OPENSSL_CONF}"
+echo "OPENSSL_MODULES=${OPENSSL_MODULES}"
+if uname -s | grep -q "^Darwin"; then
+echo "DYLD_LIBRARY_PATH=${DYLD_LIBRARY_PATH}"
 fi
 
 # check if we can use docker or not:
-docker info 2>&1 | grep Server > /dev/null
-if [ $? -ne 0 ]; then
+if ! docker info 2>&1 | grep -q Server; then
    echo "No OQS-OpenSSL111 interop test because of absence of docker"
    export LOCALTESTONLY="Yes"
 fi
 
-# by default, do not run interop tests as per 
+# by default, do not run interop tests as per
 # https://github.com/open-quantum-safe/oqs-provider/issues/32
 # comment the following line if they should be run; be sure to
 # have alignment in algorithms supported in that case
 export LOCALTESTONLY="Yes"
 
 echo "Version information:"
-$OPENSSL_APP version
+"${OPENSSL_APP}" version
 
 # Disable testing for version 3.0.1: Buggy as hell:
-$OPENSSL_APP version | grep "OpenSSL 3.0.1" > /dev/null
-if [ $? -eq 0 ]; then
+if "${OPENSSL_APP}" version | grep -q "OpenSSL 3.0.1"; then
    echo "Skipping testing of buggy OpenSSL 3.0.1"
    exit 0
 fi
 
-$OPENSSL_APP list -providers -verbose
-if [ $? -ne 0 ]; then
+if ! "${OPENSSL_APP}" list -providers -verbose; then
    echo "Baseline openssl invocation failed. Exiting test."
    exit 1
 fi
 
 # Ensure "oqsprovider" is registered:
-$OPENSSL_APP list -providers -verbose | grep oqsprovider > /dev/null
-if [ $? -ne 0 ]; then
+if ! "${OPENSSL_APP}" list -providers -verbose | grep -q oqsprovider; then
    echo "oqsprovider not registered. Exit test."
    exit 1
 fi
@@ -162,16 +160,16 @@ rm -f interop.log
 echo "Cert gen/verify, CMS sign/verify, CA tests for all enabled OQS signature algorithms commencing: "
 
 # auto-detect all available signature algorithms:
-for alg in `$OPENSSL_APP list -signature-algorithms | grep oqsprovider | sed -e "s/ @ .*//g" | sed -e "s/^  //g"`
-do 
+for alg in $("${OPENSSL_APP}" list -signature-algorithms | grep oqsprovider | sed -e "s/ @ .*//g" | sed -e "s/^  //g")
+do
    if [ "$1" = "-V" ]; then
       echo "Testing $alg"
    fi
-   interop $alg
+   interop "${alg}"
    certsgenerated=1
 done
 
-if [ -z $certsgenerated ]; then
+if [ -z "${certsgenerated}" ]; then
    echo "No OQS signature algorithms found in provider 'oqsprovider'. No certs generated. Exiting."
    exit 1
 else
@@ -185,9 +183,8 @@ echo
 # Run built-in tests:
 # Without removing OPENSSL_CONF ctest hangs... ???
 unset OPENSSL_CONF
-cd _build && ctest $@ && cd ..
-
-if [ $? -ne 0 ]; then
+rv=0
+if ! ( cd _build && ctest $@ ); then
    rv=1
 fi
 
@@ -197,10 +194,10 @@ fi
 #rm -rf tmp
 echo
 
-if [ $rv -ne 0 ]; then
+if [ "${rv}" -ne 0 ]; then
    echo "Tests failed."
 else
    echo "All oqsprovider tests passed."
 fi
-exit $rv
+exit "${rv}"