[RFC PATCH 4/5] app/test: define unit tests suites based on test macros

[Bruce Richardson <bruce.richardson@intel.com>]

Rather than having the test suites listed out in the meson.build files
and having to have them enabled/disabled selectively based on what libs
are being built, pull the tests to run from the source files which were
added to the build.

Signed-off-by: Bruce Richardson <bruce.richardson@intel.com>
---
 app/meson.build               |  7 ++++++-
 app/test/suites/meson.build   | 29 +++++++++++++++++++++++++++++
 buildtools/get-test-suites.py | 24 ++++++++++++++++++++++++
 buildtools/meson.build        |  1 +
 4 files changed, 60 insertions(+), 1 deletion(-)
 create mode 100644 app/test/suites/meson.build
 create mode 100644 buildtools/get-test-suites.py

diff --git a/app/meson.build b/app/meson.build
index 0d8b618e7f..c14dc80892 100644
--- a/app/meson.build
+++ b/app/meson.build
@@ -101,7 +101,7 @@ foreach app:apps
         link_libs = dpdk_static_libraries + dpdk_drivers
     endif
 
-    executable('dpdk-' + name,
+    exec = executable('dpdk-' + name,
             sources,
             c_args: cflags,
             link_args: ldflags,
@@ -110,4 +110,9 @@ foreach app:apps
             include_directories: includes,
             install_rpath: join_paths(get_option('prefix'), driver_install_path),
             install: true)
+    if name == 'test'
+        dpdk_test = exec
+        autotest_sources = sources
+        subdir('test/suites')  # define the pre-canned test suites
+    endif
 endforeach
diff --git a/app/test/suites/meson.build b/app/test/suites/meson.build
new file mode 100644
index 0000000000..135620578c
--- /dev/null
+++ b/app/test/suites/meson.build
@@ -0,0 +1,29 @@
+# SPDX-License-Identifier: BSD-3-Clause
+# Copyright(c) 2023 Intel Corporation
+
+# some perf tests (eg: memcpy perf autotest)take very long
+# to complete, so timeout to 10 minutes
+timeout_seconds = 600
+
+# process source files to determine the different unit test suites
+# - fast_tests
+# - perf_tests
+# - driver_tests
+test_suites = run_command(get_test_suites_cmd, autotest_sources).stdout().strip().split()
+foreach suite:test_suites
+    suite = suite.split('=')
+    suite_name = suite[0]
+    suite_tests = suite[1].split(',')
+    if suite_name == 'fast-tests'
+    # special fast-test handling here
+
+    else
+        foreach t: suite_tests
+            test(t, dpdk_test,
+                    args: ['--', t],
+                    timeout: timeout_seconds,
+                    is_parallel: false,
+                    suite: suite_name)
+        endforeach
+    endif
+endforeach
diff --git a/buildtools/get-test-suites.py b/buildtools/get-test-suites.py
new file mode 100644
index 0000000000..43cde80970
--- /dev/null
+++ b/buildtools/get-test-suites.py
@@ -0,0 +1,24 @@
+#! /usr/bin/env python3
+# SPDX-License-Identifier: BSD-3-Clause
+# Copyright(c) 2023 Intel Corporation
+
+import sys
+import re
+
+input_list = sys.argv[1:]
+test_def_regex = re.compile("REGISTER_([A-Z]+)_TEST\s*\(\s*([a-z0-9_]+)")
+test_suites = {}
+
+for fname in input_list:
+    with open(fname) as f:
+        contents = [ln for ln in f.readlines() if test_def_regex.match(ln.strip())]
+    for ln in contents:
+        (test_suite, test_name) = test_def_regex.match(ln).group(1, 2)
+        suite_name = f"{test_suite.lower()}-tests"
+        if suite_name in test_suites:
+            test_suites[suite_name].append(test_name)
+        else:
+            test_suites[suite_name] = [test_name]
+
+for suite in test_suites.keys():
+    print(f"{suite}={','.join(test_suites[suite])}")
diff --git a/buildtools/meson.build b/buildtools/meson.build
index e1c600e40f..12e4b36165 100644
--- a/buildtools/meson.build
+++ b/buildtools/meson.build
@@ -18,6 +18,7 @@ map_to_win_cmd = py3 + files('map_to_win.py')
 sphinx_wrapper = py3 + files('call-sphinx-build.py')
 get_cpu_count_cmd = py3 + files('get-cpu-count.py')
 get_numa_count_cmd = py3 + files('get-numa-count.py')
+get_test_suites_cmd = py3 + files('get-test-suites.py')
 binutils_avx512_check = (py3 + files('binutils-avx512-check.py') +
                         [objdump] + cc.cmd_array())
 
-- 
2.39.2