[PATCH] {maint} tests: add basic semantic tests on C++ support

[Stefano Lattarini]

Strange as it might seem, we were still missing them (yikes).

* t/cxx-demo.sh: New test.
* t/cxx-lt-demo.sh: Likewise (using libtool).
* t/list-of-tests.mk: Add them.

Signed-off-by: Stefano Lattarini <address@hidden>
---

 I will push this shortly if there is no  objection.

 Regards,
   Stefano

 t/cxx-demo.sh      |  177 ++++++++++++++++++++++++++++++++++++++++++++++++++++
 t/cxx-lt-demo.sh   |  133 +++++++++++++++++++++++++++++++++++++++
 t/list-of-tests.mk |    1 +
 3 files changed, 311 insertions(+)
 create mode 100755 t/cxx-demo.sh
 create mode 100755 t/cxx-lt-demo.sh

diff --git a/t/cxx-demo.sh b/t/cxx-demo.sh
new file mode 100755
index 0000000..869c2b3
--- /dev/null
+++ b/t/cxx-demo.sh
@@ -0,0 +1,177 @@
+#! /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.
+
+required=c++
+am_create_testdir=empty
+. ./defs || Exit 1
+
+cat > configure.ac << 'END'
+AC_INIT([GNU C++ Demo], [1.3], address@hidden)
+AC_CONFIG_SRCDIR([play.c++])
+AC_CONFIG_AUX_DIR([build-aux])
+AM_INIT_AUTOMAKE
+# The C compiler shouldn't be required in any way.
+CC=false; AC_SUBST([CC])
+AC_PROG_CXX
+AH_BOTTOM([
+#ifndef GREETINGS
+#  define GREETINGS "Howdy"
+#endif])
+AC_DEFINE([OK_AC], [1],
+          [Give "good to go" declaration from configure.ac])
+AC_CONFIG_HEADERS([config.hxx])
+AC_CONFIG_FILES([Makefile])
+AC_OUTPUT
+END
+
+cat > Makefile.am << 'END'
+AUTOMAKE_OPTIONS = subdir-objects
+
+bin_PROGRAMS = work play
+common_sources = common.hpp foo.cpp sub/bar.cc
+AM_CPPFLAGS = -DOK_AM=1
+play_SOURCES = play.c++ play.hh $(common_sources)
+work_SOURCES = work.cxx work.h++ $(common_sources)
+work_CXXFLAGS = -D'GREETINGS="Good morning"'
+
+.PHONY: test-objs
+check-local: test-objs
+test-objs:
+       test -f play.$(OBJEXT)
+       test -f foo.$(OBJEXT)
+       test -f sub/bar.$(OBJEXT)
+       test -f work-foo.$(OBJEXT)
+       test -f sub/work-bar.$(OBJEXT)
+       test -f work-work.$(OBJEXT)
+END
+
+mkdir sub build-aux
+
+$ACLOCAL
+$AUTOHEADER
+test -f config.hxx.in
+$AUTOCONF
+$AUTOMAKE --add-missing
+test -f build-aux/depcomp
+# Not needed by C++ compilers.
+test ! -f build-aux/compile
+
+cat > work.h++ << 'END'
+#define ACTION "work"
+class Hello_CXX
+{
+  public:
+    Hello_CXX() { }
+    virtual ~Hello_CXX () { }
+    void hello_cxx_class ();
+};
+END
+
+cat > play.hh << 'END'
+#define ACTION "play"
+void hello_cxx_function (void);
+END
+
+cat > common.hpp << 'END'
+/* Common header. */
+
+#include <config.hxx>
+
+#if !OK_AM
+#error "missing OK from Makefile.am"
+choke me
+#endif
+
+#if !OK_AC
+#error "missing OK from configure.ac"
+choke me
+#endif
+
+#include <iostream>
+END
+
+cat > work.cxx << 'END'
+#include "common.hpp"
+#include "work.h++"
+#include <cstdlib>
+using namespace std;
+int main (void)
+{
+  cout << "We are working :-(" << endl;
+  Hello_CXX *hello = new Hello_CXX;
+  hello->hello_cxx_class ();
+  return EXIT_SUCCESS;
+}
+END
+
+cat > play.c++ << 'END'
+#include "common.hpp"
+#include "play.hh"
+int main (void)
+{
+  std::cout << "We are playing :-)" << std::endl;
+  hello_cxx_function ();
+  return 0;
+}
+END
+
+cat > foo.cpp <<'END'
+#include <config.hxx>
+#include "work.h++"
+#include <iostream>
+using namespace std;
+void Hello_CXX::hello_cxx_class (void)
+{
+  cout << GREETINGS << ", " << ACTION << "." << endl;
+}
+END
+
+cat > sub/bar.cc << 'END'
+#include <config.hxx>
+#include "play.hh"
+#include <stdio.h>
+void hello_cxx_function (void)
+{
+  printf ("%s, %s!\n", GREETINGS, ACTION);
+}
+END
+
+./configure
+$MAKE
+$MAKE test-objs
+
+if ! cross_compiling; then
+  unindent > exp.play << 'END'
+    We are playing :-)
+    Howdy, play!
+END
+  unindent > exp.work << 'END'
+    We are working :-(
+    Good morning, work.
+END
+  for p in play work; do
+    ./$p > got.$p || { cat got.$p; Exit 1; }
+    cat exp.$p
+    cat got.$p
+    diff exp.$p got.$p
+  done
+fi
+
+$MAKE distcheck
+
+:
diff --git a/t/cxx-lt-demo.sh b/t/cxx-lt-demo.sh
new file mode 100755
index 0000000..ef2bc78
--- /dev/null
+++ b/t/cxx-lt-demo.sh
@@ -0,0 +1,133 @@
+#! /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 Libtool/C++ support.
+
+required='libtoolize c++'
+am_create_testdir=empty
+. ./defs || Exit 1
+
+cat > configure.ac << 'END'
+AC_INIT([GNU C++/Libtool Demo], [0.73], address@hidden)
+AC_CONFIG_SRCDIR([lib/libfoo.c++])
+AC_CONFIG_AUX_DIR([ax])
+AM_INIT_AUTOMAKE
+AC_CANONICAL_HOST
+AC_CANONICAL_BUILD
+AC_PROG_CXX
+AM_PROG_AR
+LT_INIT
+AC_CONFIG_FILES([
+  Makefile
+  src/Makefile
+  lib/Makefile
+  try.sh:try.in
+])
+AC_OUTPUT
+END
+
+mkdir ax lib src
+
+cat > Makefile.am <<'END'
+SUBDIRS = lib src
+
+AUTOMAKE_OPTIONS = parallel-tests
+TEST_EXTENSIONS = .sh
+SH_LOG_COMPILER = $(SHELL) -ex
+TESTS = try.sh
+
+.PHONY: test-objs
+check-local: test-objs
+test-objs:
+       test -f src/main.$(OBJEXT)
+       test -f lib/libfoo.$(OBJEXT)
+END
+
+cat > src/Makefile.am << 'END'
+bin_PROGRAMS = zardoz
+zardoz_SOURCES = main.cc
+zardoz_LDADD = $(top_builddir)/lib/libfoo.la
+AM_CPPFLAGS = -I$(top_builddir)/lib
+END
+
+cat > lib/Makefile.am << 'END'
+lib_LTLIBRARIES = libfoo.la
+nodist_libfoo_la_SOURCES = libfoo.h++
+libfoo_la_SOURCES = libfoo.c++
+libfoo.h++: $(srcdir)/libfoo.c++
+       echo '#include <string>' >address@hidden
+       grep "target *(" "$(srcdir)/libfoo.c++" >>address@hidden
+       echo ';' >>address@hidden
+       chmod a-w address@hidden && mv -f address@hidden $@
+BUILT_SOURCES = libfoo.h++
+DISTCLEANFILES = $(BUILT_SOURCES)
+END
+
+cat > try.in << 'END'
+#!/bin/sh
+set -e
+if test x"$host_alias" = x || test x"$build_alias" = x"$host_alias"; then
+  ./src/zardoz
+  test "`./src/zardoz`" = 'Howdy, Testsuite!'
+else
+  echo "Skip: cannot run a cross-compiled program"
+  exit 77
+fi
+END
+
+libtoolize --copy
+$ACLOCAL
+$AUTOCONF
+$AUTOMAKE --add-missing --copy
+
+ls -l . ax # For debugging.
+for f in ltmain.sh depcomp config.guess config.sub; do
+  test -f ax/$f && test ! -h ax/$f || Exit 1
+done
+test ! -f ax/compile # Not required by C++ compilers.
+
+cat > src/main.cc << 'END'
+#include "libfoo.h++"
+#include <iostream>
+using namespace std;
+int main (void)
+{
+  cout << "Howdy, " << target () << "!" << endl;
+  return 0;
+}
+END
+
+cat > lib/libfoo.c++ << 'END'
+#include "libfoo.h++"
+#include <string>
+std::string target (void)
+{
+  std::string s1 = "Test";
+  std::string s2 = "suite";
+  return (s1 + s2);
+}
+END
+
+./configure
+CC=false $MAKE -e
+ls -l . src lib # For debugging.
+$MAKE test-objs
+VERBOSE=yes $MAKE check-TESTS
+grep 'Howdy.*Testsuite' try.log || grep 'Skip:.*cross-compiled' try.log
+
+$MAKE -e CC=false distcheck
+
+:
diff --git a/t/list-of-tests.mk b/t/list-of-tests.mk
index 52bdaf9..b6159d6 100644
--- a/t/list-of-tests.mk
+++ b/t/list-of-tests.mk
@@ -332,6 +332,7 @@ t/cscope3.sh \
 t/cxx.sh \
 t/cxx2.sh \
 t/cxxcpp.sh \
+t/cxx-demo.sh \
 t/cxxlibobj.sh \
 t/cxxlink.sh \
 t/cxxnoc.sh \
-- 
1.7.9.5