Run tests in parallel with GNU parallel (#1332)

setup-dev.sh

@@ -33,7 +33,8 @@ install_apt() {
         libc6-dev \
         curl \
         build-essential \
-        gdb
+        gdb \
+        parallel
 
     if [[ "$1" == "22.04" ]]; then
         sudo apt install shfmt

tests/gdb-tests/tests.sh

@@ -68,14 +68,11 @@ if [ $? -eq 1 ]; then
     exit 1
 fi
 
-TESTS_LIST=$(echo -E "$TESTS_COLLECT_OUTPUT" | grep -o "tests/.*::.*" | grep "${TEST_NAME_FILTER}")
+TESTS_LIST=($(echo -E "$TESTS_COLLECT_OUTPUT" | grep -o "tests/.*::.*" | grep "${TEST_NAME_FILTER}"))
 
-tests_passed_or_skipped=0
-tests_failed=0
+run_test() {
+    test_case="$1"
 
-declare -a FAILED_TESTS
-
-for test_case in ${TESTS_LIST}; do
     gdb_args=(--command $GDB_INIT_PATH --command pytests_launcher.py)
     if [ ${RUN_CODECOV} -ne 0 ]; then
         gdb_args=(-ex 'py import coverage;coverage.process_startup()' "${gdb_args[@]}")
@@ -88,23 +85,28 @@ for test_case in ${TESTS_LIST}; do
         PWNDBG_DISABLE_COLORS=1 \
         run_gdb "${gdb_args[@]}"
 
-    exit_status=$?
-    if [ ${exit_status} -eq 0 ]; then
-        ((++tests_passed_or_skipped))
-    else
-        ((++tests_failed))
-        FAILED_TESTS+=(${test_case})
-    fi
-done
+    exit $?
+}
+JOBLOG_PATH="$(mktemp)"
+echo "Joblog: $JOBLOG_PATH"
+
+. $(which env_parallel.bash)
+env_parallel --joblog $JOBLOG_PATH run_test ::: "${TESTS_LIST[@]}"
+
+# The seventh column in the joblog is the exit value and the tenth is the test name
+FAILED_TESTS=($(awk '$7 == "1" { print $10 }' "${JOBLOG_PATH}"))
+
+num_tests_failed=${#FAILED_TESTS[@]}
+num_tests_passed_or_skipped=$((${#TESTS_LIST[@]} - $num_tests_failed))
 
 echo ""
 echo "*********************************"
 echo "********* TESTS SUMMARY *********"
 echo "*********************************"
-echo "Tests passed or skipped: ${tests_passed_or_skipped}"
-echo "Tests failed: ${tests_failed}"
+echo "Tests passed or skipped: ${num_tests_passed_or_skipped}"
+echo "Tests failed: ${num_tests_failed}"
 
-if [ "${tests_failed}" -ne 0 ]; then
+if [ "${num_tests_failed}" -ne 0 ]; then
     echo ""
     echo "Failing tests: ${FAILED_TESTS[@]}"
     exit 1

tests/gdb-tests/tests/test_attachp.py

@@ -1,6 +1,7 @@
 import os
 import re
 import subprocess
+import tempfile
 
 import pytest
 
@@ -24,7 +25,7 @@ REASON_CANNOT_ATTACH = (
 
 @pytest.fixture
 def launched_bash_binary():
-    path = "/tmp/pwndbg_test_bash"
+    path = tempfile.mktemp()
     subprocess.check_output(["cp", "/bin/bash", path])
 
     process = subprocess.Popen([path], stdout=subprocess.PIPE, stdin=subprocess.PIPE)

tests/gdb-tests/tests/test_command_vmmap.py

@@ -1,3 +1,5 @@
+import tempfile
+
 import gdb
 
 import pwndbg
@@ -79,7 +81,7 @@ def test_command_vmmap_on_coredump_on_crash_simple_binary(start_binary):
     assert vmmaps == expected_maps
 
     # Now, generate core file, so we can then test coredump vmmap
-    core = "/tmp/test_command_vmmap_on_coredump_on_crash_simple_binary"
+    core = tempfile.mktemp()
     gdb.execute("generate-core-file %s" % core)
 
     #### TEST COREDUMP VMMAP

tests/gdb-tests/tests/test_context_commands.py

@@ -32,8 +32,13 @@ def test_context_disasm_show_fd_filepath(start_binary):
 
     assert "call   read@plt" in line_call_read
 
+    # When running tests with GNU Parallel, sometimes the file name looks
+    # '/tmp/parZ4YC4.par', and occasionally '(deleted)' is present after the
+    # filename
     line_fd = line_fd.strip()
-    assert re.match(r"fd:\s+0x1 \((/dev/pts/\d+|pipe:\[\d+\])\)", line_fd)
+    assert re.match(
+        r"fd:\s+0x1 \((/dev/pts/\d+|/tmp/par.+\.par(?: \(deleted\))?|pipe:\[\d+\])\)", line_fd
+    )
 
     line_buf = line_buf.strip()
     assert re.match(r"buf:\s+0x[0-9a-f]+ ◂— 0x0", line_buf)