ssl-opt: Introduce --list-test-cases option

Signed-off-by: Tomás González <tomasagustin.gonzalezorlando@arm.com>

tests/ssl-opt.sh

@@ -112,6 +112,7 @@ FILTER='.*'
 EXCLUDE='^$'
 
 SHOW_TEST_NUMBER=0
+LIST_TESTS=0
 RUN_TEST_NUMBER=''
 
 PRESERVE_LOGS=0
@@ -131,6 +132,7 @@ print_usage() {
     printf "  -n|--number\tExecute only numbered test (comma-separated, e.g. '245,256')\n"
     printf "  -s|--show-numbers\tShow test numbers in front of test names\n"
     printf "  -p|--preserve-logs\tPreserve logs of successful tests as well\n"
+    printf "     --list-test-cases\tList all potential test cases (No Execution)\n"
     printf "     --outcome-file\tFile where test outcomes are written\n"
     printf "                \t(default: \$MBEDTLS_TEST_OUTCOME_FILE, none if empty)\n"
     printf "     --port     \tTCP/UDP port (default: randomish 1xxxx)\n"
@@ -156,6 +158,9 @@ get_options() {
             -s|--show-numbers)
                 SHOW_TEST_NUMBER=1
                 ;;
+            -l|--list-test-cases)
+                LIST_TESTS=1
+                ;;
             -p|--preserve-logs)
                 PRESERVE_LOGS=1
                 ;;
@@ -185,11 +190,18 @@ get_options() {
     done
 }
 
+get_options "$@"
+
 # Read boolean configuration options from config.h for easy and quick
 # testing. Skip non-boolean options (with something other than spaces
 # and a comment after "#define SYMBOL"). The variable contains a
 # space-separated list of symbols.
+if [ "$LIST_TESTS" -eq 0 ];then
     CONFIGS_ENABLED=" $(echo `$P_QUERY -l` )"
+else
+    P_QUERY=":"
+    CONFIGS_ENABLED=""
+fi
 # Skip next test; use this macro to skip tests which are legitimate
 # in theory and expected to be re-introduced at some point, but
 # aren't expected to succeed at the moment due to problems outside
@@ -221,7 +233,12 @@ get_config_value_or_default() {
     #
     # Note that if the configuration is not defined or is defined to nothing,
     # the output of this function will be an empty string.
+    if [ "$LIST_TESTS" -eq 0 ];then
         ${P_SRV} "query_config=${1}"
+    else
+        echo "1"
+    fi
+
 }
 
 requires_config_value_at_least() {
@@ -496,19 +513,18 @@ requires_not_i686() {
     fi
 }
 
-# Calculate the input & output maximum content lengths set in the config
 MAX_CONTENT_LEN=$( get_config_value_or_default "MBEDTLS_SSL_MAX_CONTENT_LEN" )
 MAX_IN_LEN=$( get_config_value_or_default "MBEDTLS_SSL_IN_CONTENT_LEN" )
 MAX_OUT_LEN=$( get_config_value_or_default "MBEDTLS_SSL_OUT_CONTENT_LEN" )
-
-# Calculate the maximum content length that fits both
+if [ "$LIST_TESTS" -eq 0 ];then
+    # Calculate the input & output maximum content lengths set in the config
     if [ "$MAX_IN_LEN" -lt "$MAX_CONTENT_LEN" ]; then
         MAX_CONTENT_LEN="$MAX_IN_LEN"
     fi
     if [ "$MAX_OUT_LEN" -lt "$MAX_CONTENT_LEN" ]; then
         MAX_CONTENT_LEN="$MAX_OUT_LEN"
     fi
-
+fi
 # skip the next test if the SSL output buffer is less than 16KB
 requires_full_size_output_buffer() {
     if [ "$MAX_OUT_LEN" -ne 16384 ]; then
@@ -550,6 +566,7 @@ print_name() {
     fi
 
     LINE="$LINE$1"
+
     printf "%s " "$LINE"
     LEN=$(( 72 - `echo "$LINE" | wc -c` ))
     for i in `seq 1 $LEN`; do printf '.'; done
@@ -1164,6 +1181,11 @@ run_test() {
         return
     fi
 
+    if [ "$LIST_TESTS" -gt 0 ]; then
+        printf "%s\n" "$NAME"
+        return
+    fi
+
     print_name "$NAME"
 
     # Do we only run numbered tests?
@@ -1363,8 +1385,6 @@ cleanup() {
 # MAIN
 #
 
-get_options "$@"
-
 # Make the outcome file path relative to the original directory, not
 # to .../tests
 case "$MBEDTLS_TEST_OUTCOME_FILE" in
@@ -1413,6 +1433,8 @@ else
     }
 fi
 
+if [ "$LIST_TESTS" -eq 0 ];then
+
     # sanity checks, avoid an avalanche of errors
     P_SRV_BIN="${P_SRV%%[  ]*}"
     P_CLI_BIN="${P_CLI%%[  ]*}"
@@ -1510,7 +1532,7 @@ fi
     # Allow SHA-1, because many of our test certificates use it
     P_SRV="$P_SRV allow_sha1=1"
     P_CLI="$P_CLI allow_sha1=1"
-
+fi
 # Also pick a unique name for intermediate files
 SRV_OUT="srv_out.$$"
 CLI_OUT="cli_out.$$"
@@ -10540,6 +10562,7 @@ requires_config_enabled MBEDTLS_SSL_MAX_FRAGMENT_LENGTH
 requires_max_content_len 16384
 run_tests_memory_after_hanshake
 
+if [ "$LIST_TESTS" -eq 0 ]; then
     # Final report
 
     echo "------------------------------------------------------------------------"
@@ -10551,6 +10574,7 @@ else
     fi
     PASSES=$(( $TESTS - $FAILS ))
     echo " ($PASSES / $TESTS tests ($SKIPS skipped))"
+fi
 
 if [ $FAILS -gt 255 ]; then
     # Clamp at 255 as caller gets exit code & 0xFF