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[Automake-commit] [SCM] GNU Automake branch, testsuite-work, updated. v1


From: Stefano Lattarini
Subject: [Automake-commit] [SCM] GNU Automake branch, testsuite-work, updated. v1.11-861-g6ca5ab0
Date: Fri, 20 May 2011 22:15:33 +0000

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http://git.sv.gnu.org/gitweb/?p=automake.git;a=commitdiff;h=6ca5ab0d009ca3edca0c6852e53ccd22c2e900c0

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- Log -----------------------------------------------------------------
commit 6ca5ab0d009ca3edca0c6852e53ccd22c2e900c0
Merge: dd424bd 0f0c60a
Author: Stefano Lattarini <address@hidden>
Date:   Sat May 21 00:08:02 2011 +0200

    Merge branch 'master' into testsuite-work
    
    * master:
      testsuite: avoid re-running few tests with 'parallel-tests' option
      testsuite: allow tests to avoid the use of 'parallel-tests' option
      tests/README: update obsoleted advice

-----------------------------------------------------------------------

Summary of changes:
 ChangeLog                |   40 ++++++++++++++++++++++++++++++++++++++++
 tests/Makefile.in        |    6 +-----
 tests/README             |   19 +++++++++++--------
 tests/gen-parallel-tests |   11 +++++++++--
 tests/pr401.test         |    1 +
 tests/pr401b.test        |    1 +
 tests/pr401c.test        |    1 +
 7 files changed, 64 insertions(+), 15 deletions(-)

diff --git a/ChangeLog b/ChangeLog
index bf26007..3f93d41 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,43 @@
+2011-05-20  Stefano Lattarini  <address@hidden>
+
+       testsuite: avoid re-running few tests with 'parallel-tests' option
+       Some tests in our testsuite use the 'simple-tests' driver only
+       marginally, or simply as a mean to conveniently check unrelated
+       invariants.  It makes little sense to force these tests to also
+       run with the 'parallel-tests' Automake option active, as doing so
+       offers no real gain in coverage, while often causing a measurable
+       overhead in execution time (for an already too-slow testsuite).
+       * tests/pr401.test (parallel_tests): Define to "no", to prevent
+       the generation of a sibling test script using the 'parallel-tests'
+       driver.
+       * tests/pr401b.test: Likewise.
+       * tests/pr401c.test: Likewise.
+
+2011-05-20  Stefano Lattarini  <address@hidden>
+
+       testsuite: allow tests to avoid the use of 'parallel-tests' option
+       * tests/gen-parallel-tests: Do not generate "siblings" for tests
+       that explicitly define the `parallel_tests', whether to "yes" or
+       to any other value.  Extend heading comments to give a rationale
+       for this behaviour.
+       * tests/README: Update.
+
+2011-05-20  Stefano Lattarini  <address@hidden>
+
+       tests/README: update obsoleted advice
+       * tests/README (Section "Writing test cases" subsection "Do"):
+       Do not suggest to use the `*-p.test' pattern for the names of
+       hand-written tests which use the `parallel-tests' Automake option.
+       Not only is this not respected by the existing tests, but it is
+       more likely to cause conflicts with auto-generated tests.
+       So, suggest to *avoid* using the `*-p.test' pattern in names
+       of hand-written tests instead.
+       (Section "Writing test cases" subsection "Do not"):  When
+       suggesting not to override Makefile variables using command
+       line arguments, do not use the badly outdated variables `U'
+       and 'ANSI2KNR' in the example; instead, use the more common
+       and typical `DESTDIR'.
+
 2011-05-18  Stefano Lattarini  <address@hidden>
 
        tests: avoid spurious failures in cross-compile mode
diff --git a/tests/Makefile.in b/tests/Makefile.in
index 74d207f..87dd626 100644
--- a/tests/Makefile.in
+++ b/tests/Makefile.in
@@ -305,8 +305,7 @@ parallel_tests = backcompat5-p.test 
check-exported-srcdir-p.test \
        check2-p.test check3-p.test check4-p.test check5-p.test \
        check6-p.test check7-p.test check8-p.test color-p.test \
        color2-p.test comment9-p.test dejagnu-p.test exeext4-p.test \
-       maken3-p.test maken4-p.test posixsubst-tests-p.test \
-       pr401-p.test pr401b-p.test pr401c-p.test
+       maken3-p.test maken4-p.test posixsubst-tests-p.test
 instspc_tests = build-squote.instspc install-squote.instspc \
        build-dquote.instspc install-dquote.instspc \
        build-bquote.instspc install-bquote.instspc \
@@ -1690,9 +1689,6 @@ exeext4-p.log: exeext4.test
 maken3-p.log: maken3.test
 maken4-p.log: maken4.test
 posixsubst-tests-p.log: posixsubst-tests.test
-pr401-p.log: pr401.test
-pr401b-p.log: pr401b.test
-pr401c-p.log: pr401c.test
 
 $(srcdir)/parallel-tests.am: gen-parallel-tests Makefile.am
        $(AM_V_GEN)($(am__cd) $(srcdir) && $(SHELL) ./gen-parallel-tests) >$@
diff --git a/tests/README b/tests/README
index bc34743..29c964b 100644
--- a/tests/README
+++ b/tests/README
@@ -127,8 +127,11 @@ Do
 
   For tests that use the `parallel-tests' Automake option, set the shell
   variable `parallel_tests' to "yes" before including ./defs.  Also,
-  use for them a name that ends in `-p.test' and does not clash with any
-  generated tests in the suite.
+  do not use for them a name that ends in `-p.test', since that would
+  risk to clash with automatically-generated tests.  For tests that are
+  *not* meant to work with the `parallel-tests' Automake option (these
+  should be very very few), set the shell variable `parallel_tests' to
+  "no" before including ./defs.
 
   ./defs sets a skeleton configure.in.  If possible, append to this
   file.  In some cases you'll have to overwrite it, but this should
@@ -200,12 +203,12 @@ Do not
   reason, but at least it makes sure the original error is still
   here.)
 
-  Do not override Makefile variables using make arguments, as in
-    $MAKE ANSI2KNR=./ansi2knr U=_ all
-  this is not portable for recursive targets (targets that
-  call a sub-make may not pass `ANSI2KNR=./ansi2knr U=_' along).
-  Use the following instead.
-    ANSI2KNR=./ansi2knr U=_ $MAKE -e all
+  Do not override Makefile variables using make arguments, as in e.g.:
+    $MAKE DESTDIR=/foo/bar install
+  This is not portable for recursive targets (targets that call a
+  sub-make may not pass `DESTDIR=/foo/bar' along).  Use the following
+  instead:
+    DESTDIR=/foo/bar $MAKE -e install
 
   Do not send a test case without signing a copyright disclaimer.
   See http://sources.redhat.com/automake/contribute.html or
diff --git a/tests/gen-parallel-tests b/tests/gen-parallel-tests
index 20b9ee1..0c96228 100755
--- a/tests/gen-parallel-tests
+++ b/tests/gen-parallel-tests
@@ -19,6 +19,14 @@
 # For each test in the TESTS list in this Makefile.am file, that itself
 # tests features of the TESTS automake interface, generate a sibling
 # test that does likewise, but with the option `parallel-tests' enabled.
+# Individual tests can prevent the creation of such a sibling by
+# explicitly setting the `$parallel_tests' variable to either "yes" or
+# "no".  The rationale for this is that if the variable is set to "yes",
+# the test already uses the `parallel-tests' option, so that a sibling
+# would be just a duplicate; while if the variable is set to "no", the
+# test doesn't support, or is not meant to run with, the `parallel-tests'
+# option, and forcing it to do so in the sibling would likely cause a
+# spurious failure.
 
 set -e
 
@@ -37,8 +45,7 @@ grep -v '.-p\.test' |
 LC_ALL=C sort -u |
 while read tst; do
   if grep '^[^#]*parallel-tests' $tst >/dev/null \
-     || grep "parallel_tests=yes" $tst >/dev/null \
-     || grep "parallel_tests=['\"]yes" $tst >/dev/null
+     || grep "parallel_tests=" $tst >/dev/null
   then :; else echo $tst; fi;
 done |
 sed -e 's/\.test$//' |
diff --git a/tests/pr401.test b/tests/pr401.test
index acc21dc..e150190 100755
--- a/tests/pr401.test
+++ b/tests/pr401.test
@@ -18,6 +18,7 @@
 # Check support for AC_CONFIG_LIBOBJ_DIR vs LIBOBJS.
 # (pr401b.test and pr401c.test do the same for LTLIBOBJS and ALLOCA)
 
+parallel_tests=no
 . ./defs || Exit 1
 
 mkdir lib src
diff --git a/tests/pr401b.test b/tests/pr401b.test
index 68d9750..58b3d8a 100755
--- a/tests/pr401b.test
+++ b/tests/pr401b.test
@@ -18,6 +18,7 @@
 # Check support for AC_CONFIG_LIBOBJ_DIR vs LTLIBOBJS.
 # (pr401.test and pr401c.test do the same for LIBOBJS and ALLOCA)
 
+parallel_tests=no
 required=libtoolize
 . ./defs || Exit 1
 
diff --git a/tests/pr401c.test b/tests/pr401c.test
index 7e42aae..91156cd 100755
--- a/tests/pr401c.test
+++ b/tests/pr401c.test
@@ -18,6 +18,7 @@
 # Check support for AC_CONFIG_LIBOBJ_DIR vs ALLOCA.
 # (pr401.test and pr401b.test do the same for LIBOBJS and LTLIBOBJS)
 
+parallel_tests=no
 . ./defs || Exit 1
 
 mkdir lib src


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