sanitycheck: support exporting instances

Enable exporting tests per platform.

sanitycheck --export-tests out.txt  -p qemu_x86 -T tests/

Signed-off-by: Anas Nashif <anas.nashif@intel.com>

doc/guides/test/sanitycheck.rst

@@ -103,9 +103,9 @@ identifier:
   ``cmake``::
 
      # with west
-     west build -b tinytile
+     west build -b reel_board
      # with cmake
-     cmake -DBOARD=tinytile ..
+     cmake -DBOARD=reel_board ..
 
 name:
   The actual name of the board as it appears in marketing material.

scripts/sanity_chk/sanitylib.py

@@ -2214,6 +2214,10 @@ class TestSuite(DisablePyTestCollectionMixin):
         # hardcoded for now
         self.connected_hardware = []
 
+    def get_platform_instances(self, platform):
+        filtered_dict = {k:v for k,v in self.instances.items() if k.startswith(platform + "/")}
+        return filtered_dict
+
     def config(self):
         logger.info("coverage platform: {}".format(self.coverage_platform))
 

scripts/sanitycheck

@@ -170,6 +170,7 @@ import argparse
 import sys
 import logging
 import time
+import itertools
 import shutil
 from collections import OrderedDict
 import multiprocessing
@@ -178,6 +179,7 @@ import csv
 from colorama import Fore
 from pathlib import Path
 
+
 ZEPHYR_BASE = os.getenv("ZEPHYR_BASE")
 if not ZEPHYR_BASE:
     # This file has been zephyr/scripts/sanitycheck for years,
@@ -391,7 +393,10 @@ Artificially long but functional example:
 
     parser.add_argument("--export-tests", action="store",
                         metavar="FILENAME",
-                        help="Export tests case meta-data to a file in CSV format.")
+                        help="Export tests case meta-data to a file in CSV format."
+                             "Test instances can be exported per target by supplying "
+                             "the platform name using --platform option. (tests for only "
+                             " one platform can be exported at a time)")
 
     parser.add_argument("--timestamps",
                         action="store_true",
@@ -837,8 +842,8 @@ def main():
 
         return
 
-    if options.list_tests or options.test_tree or options.list_test_duplicates \
-        or options.sub_test or options.export_tests:
+    if not options.platform and (options.list_tests or options.test_tree or options.list_test_duplicates \
+        or options.sub_test or options.export_tests):
         cnt = 0
         all_tests = suite.get_all_tests()
 
@@ -945,6 +950,29 @@ def main():
 
         )
 
+    if (options.export_tests or options.list_tests) and options.platform:
+        if len(options.platform) > 1:
+            logger.error("When exporting tests, only one platform "
+                         "should be specified.")
+            return
+
+        for p in options.platform:
+            inst = suite.get_platform_instances(p)
+            if options.export_tests:
+                tests = [x.testcase.cases for x in inst.values()]
+                merged = list(itertools.chain(*tests))
+                export_tests(options.export_tests, merged)
+                return
+
+            count = 0
+            for i in inst.values():
+                for c in i.testcase.cases:
+                    print(f"- {c}")
+                    count += 1
+
+            print(f"Tests found: {count}")
+        return
+
     if VERBOSE > 1 and discards:
         # if we are using command line platform filter, no need to list every
         # other platform as excluded, we know that already.