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selftests: Fix loss of test output in run_kselftests.sh 

Commit fbcab13d2e ("selftests: silence test output by default")
changed the run_tests logic as well as the logic to generate
run_kselftests.sh to redirect test output away from the console.

As discussed on the list and at kernel summit, this is not a desirable
default as it means in order to debug a failure the console output is
not sufficient, you also need access to the test machine to get the
full test logs. Additionally it's impolite to write directly to
/tmp/$TEST_NAME on shared systems.

The change to the run_tests logic was reverted in commit
a323335e62 ("selftests: lib.mk: print individual test results to
console by default"), and instead a summary option was added so that
quiet output could be requested.

However the change to run_kselftests.sh was left as-is.

This commit applies the same logic to the run_kselftests.sh code, ie.
the script now takes a "--summary" option which suppresses the output,
but shows all output by default.

Additionally instead of writing to /tmp/$TEST_NAME the output is
redirected to the directory where the generated test script is
located.

Fixes: fbcab13d2e ("selftests: silence test output by default")
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
This commit is contained in:
Michael Ellerman 2018-01-16 17:10:39 +11:00 committed by Shuah Khan
parent 9739cee691
commit 14f1889fd4
2 changed files with 9 additions and 2 deletions
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9
tools/testing/selftests/Makefile
View File

@ -116,8 +116,15 @@ ifdef INSTALL_PATH
@# Ask all targets to emit their test scripts
echo "#!/bin/sh" > $(ALL_SCRIPT)
echo "cd \$$(dirname \$$0)" >> $(ALL_SCRIPT)
echo "BASE_DIR=\$$(realpath \$$(dirname \$$0))" >> $(ALL_SCRIPT)
echo "cd \$$BASE_DIR" >> $(ALL_SCRIPT)
echo "ROOT=\$$PWD" >> $(ALL_SCRIPT)
echo "if [ \"\$$1\" = \"--summary\" ]; then" >> $(ALL_SCRIPT)
echo " OUTPUT=\$$BASE_DIR/output.log" >> $(ALL_SCRIPT)
echo " cat /dev/null > \$$OUTPUT" >> $(ALL_SCRIPT)
echo "else" >> $(ALL_SCRIPT)
echo " OUTPUT=/dev/stdout" >> $(ALL_SCRIPT)
echo "fi" >> $(ALL_SCRIPT)
for TARGET in $(TARGETS); do \
BUILD_TARGET=$$BUILD/$$TARGET; \

2
tools/testing/selftests/lib.mk
View File

@ -77,7 +77,7 @@ endif
define EMIT_TESTS
@for TEST in $(TEST_GEN_PROGS) $(TEST_CUSTOM_PROGS) $(TEST_PROGS); do \
BASENAME_TEST=`basename $$TEST`; \
echo "(./$$BASENAME_TEST > /tmp/$$BASENAME_TEST 2>&1 && echo \"selftests: $$BASENAME_TEST [PASS]\") || echo \"selftests: $$BASENAME_TEST [FAIL]\""; \
echo "(./$$BASENAME_TEST >> \$$OUTPUT 2>&1 && echo \"selftests: $$BASENAME_TEST [PASS]\") || echo \"selftests: $$BASENAME_TEST [FAIL]\""; \
done;
endef