[PATCH 1/2] tests: add a "demo" test on C support

[Stefano Lattarini]

Showing and testing non-trivial use of C support, and its interaction
with other features.

* t/c-demo.sh: New test.
* t/list-of-tests.mk: Add it.

Signed-off-by: Stefano Lattarini <address@hidden>
---
 t/c-demo.sh        |  179 ++++++++++++++++++++++++++++++++++++++++++++++++++++
 t/list-of-tests.mk |    1 +
 2 files changed, 180 insertions(+)
 create mode 100755 t/c-demo.sh

diff --git a/t/c-demo.sh b/t/c-demo.sh
new file mode 100755
index 0000000..ed2a109
--- /dev/null
+++ b/t/c-demo.sh
@@ -0,0 +1,179 @@
+#! /bin/sh
+# Copyright (C) 2012 Free Software Foundation, Inc.
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2, or (at your option)
+# any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+# Demo on C support, also testing automatic dependency tracking,
+# conditional SUBDIRS and convenience libraries.
+
+required=cc
+am_create_testdir=empty
+. ./defs || Exit 1
+
+cat > configure.ac << 'END'
+AC_INIT([GNU C Demo], [22.3.2], address@hidden)
+AC_CONFIG_SRCDIR([tests/test.test])
+AC_CONFIG_AUX_DIR([build-aux])
+AM_INIT_AUTOMAKE
+AC_PROG_CC
+AM_PROG_CC_C_O
+AM_PROG_AR
+AC_PROG_RANLIB
+AM_CONDITIONAL([RUN_TESTS], [test x"$run_tests" != x"no"])
+AC_CONFIG_FILES([Makefile src/Makefile lib/Makefile tests/Makefile])
+AC_OUTPUT
+END
+
+if cross_compiling; then
+  run_tests=no
+else
+  run_tests=yes
+fi
+export run_tests
+
+mkdir build-aux lib src tests
+
+cat > Makefile.am <<'END'
+SUBDIRS = lib src
+
+if RUN_TESTS
+SUBDIRS += tests
+endif
+
+.PHONY: test-objs
+check-local: test-objs
+test-objs:
+       test -f src/zardoz-main.$(OBJEXT)
+       test -f lib/foo.$(OBJEXT)
+       test -f lib/bar.$(OBJEXT)
+END
+
+cat > src/Makefile.am << 'END'
+bin_PROGRAMS = zardoz
+zardoz_SOURCES = main.c
+zardoz_LDADD = $(top_builddir)/lib/lib-convenience.a
+zardoz_CPPFLAGS = -I$(top_builddir)/lib -I$(top_srcdir)/lib
+END
+
+cat > lib/Makefile.am << 'END'
+noinst_LIBRARIES = lib-convenience.a
+lib_convenience_a_SOURCES = foo.c
+lib_convenience_a_SOURCES += bar.c
+dist_lib_convenience_a_SOURCES = bar.h
+nodist_lib_convenience_a_SOURCES = foo.h
+
+# We want this to be auto-generated an removed by "make clean", to
+# ensure that cleaning rules work correctly; an older implementation
+# of automatic dependency tracking support suffered of weaknesses in
+# this situation, see the "historical comments" reported in:
+# http://lists.gnu.org/archive/html/automake-patches/2012-06/msg00033.html
+foo.h: $(srcdir)/foo.c
+       sed -n 's/.*foo *(.*/&;/p' "$(srcdir)/foo.c" >address@hidden
+       test 1 -eq `wc -l <address@hidden
+       chmod a-w address@hidden && mv -f address@hidden $@
+BUILT_SOURCES = foo.h
+CLEANFILES = $(BUILT_SOURCES)
+
+check-local:
+       test -f ${top_srcdir}/tests/test.test
+END
+
+cat > tests/Makefile.am << 'END'
+AUTOMAKE_OPTIONS = parallel-tests
+TEST_LOG_COMPILER = $(SHELL)
+TESTS = test.test
+EXTRA_DIST = $(TESTS)
+END
+
+cat > tests/test.test << 'END'
+#!/bin/sh
+set -x; set -e;
+../src/zardoz
+test "`../src/zardoz`" = 'Foo, Bar!'
+END
+
+$ACLOCAL
+$AUTOCONF
+$AUTOMAKE --add-missing
+
+test -f build-aux/depcomp
+test -f build-aux/compile # We have per-target flags on C sources.
+
+# Don't reject slow dependency extractors.
+./configure --enable-dependency-tracking
+
+cat > src/main.c << 'END'
+#include "foo.h"
+#include "bar.h"
+int main (void)
+{
+  printf ("%s, %s!\n", foo (), bar ());
+  return 0;
+}
+END
+
+cat > lib/foo.c << 'END'
+#include "foo.h"
+static char s[4];
+volatile char *foo (void)
+{
+  s[0] = 'F';
+  s[1] = s[2] = 'o';
+  s[3] = '\0';
+  return s;
+}
+END
+
+cat > lib/bar.c << 'END'
+#include "bar.h"
+const char *bar (void)
+{
+  return BARBAR;
+}
+END
+
+cat > lib/bar.h << 'END'
+#define BARBAR "Bar"
+const char *bar (void);
+END
+
+$MAKE
+ls -l . src lib # For debugging.
+$MAKE test-objs
+
+VERBOSE=x $MAKE check
+if cross_compiling; then
+  test ! -f tests/test-suite.log
+  test ! -f tests/test.log
+else
+  test -f tests/test-suite.log
+  grep 'Foo, Bar!' tests/test.log
+fi
+
+$MAKE distcheck
+
+if ! cross_compiling && ! grep "[ $tab]depmode=none" Makefile; then
+  # Let's check automatic dependency tracking.
+  sed 's/^\(#define BARBAR \).*/\1 "Zap"/'  lib/bar.h > t
+  mv -f t lib/bar.h
+  $MAKE
+  ./src/zardoz
+  test "`./src/zardoz`" = 'Foo, Zap!'
+fi
+
+$MAKE clean
+test ! -f lib/foo.h
+test -f lib/bar.h
+
+:
diff --git a/t/list-of-tests.mk b/t/list-of-tests.mk
index a79f8cb..31b6871 100644
--- a/t/list-of-tests.mk
+++ b/t/list-of-tests.mk
@@ -322,6 +322,7 @@ t/copy.sh \
 t/cscope.tap \
 t/cscope2.sh \
 t/cscope3.sh \
+t/c-demo.sh \
 t/cxx.sh \
 t/cxx2.sh \
 t/cxxcpp.sh \
-- 
1.7.9.5