tests: rework tests on AM_PATH_PYTHON

* t/python8.sh, t/python9.sh: Merge into ...
* t/python-am-path-iftrue.sh: ... this new test, with minor adjustments.
* t/python4.sh, t/python5.sh, t/python6.sh, t/python7.sh: Merge into ...
* t/python-missing.sh: ... this new test.
* t/python5b.sh: Rename ...
* t/python-too-old.sh: ... like this, and adjust/extend.
* t/list-of-tests.mk: Adjust.

Signed-off-by: Stefano Lattarini <stefano.lattarini@gmail.com>

1 files changed, 80 insertions, 0 deletions

diff --git a/t/python-missing.sh b/t/python-missing.sh
new file mode 100644
index 000000000..c88a4f972
--- /dev/null
+++ b/t/python-missing.sh
@@ -0,0 +1,80 @@
+#! /bin/sh
+# Copyright (C) 2003-2012 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/>.
+
+# Test detection of missing Python.
+# See also related test t/python-am-path-missing-2.sh (which requires
+# an actual python program).
+
+am_create_testdir=empty
+# An actual python is *not* required in this test.
+. ./defs || exit 1
+
+PYTHON=; unset PYTHON
+
+cat > configure.ac <<END
+AC_INIT([$me], [1.0])
+m4_include([mypy.m4])
+AC_OUTPUT
+END
+
+echo AM_PATH_PYTHON > mypy.m4
+
+$ACLOCAL
+$AUTOCONF
+
+# Simulate no Python.
+./configure PYTHON=: 2>stderr && { cat stderr >&2; exit 1; }
+cat stderr >&2
+grep 'no suitable Python interpreter found' stderr
+
+# Again, but from the environment this time.
+env PYTHON=: ./configure 2>stderr && { cat stderr >&2; exit 1; }
+cat stderr >&2
+grep 'no suitable Python interpreter found' stderr
+
+# Now try using a custom ACTION-IF-NOT-FOUND.
+
+echo 'AM_PATH_PYTHON(,, [echo "$PYTHON" > py])' > mypy.m4
+$AUTOCONF --force
+./configure PYTHON=:
+test x"$(cat py)" = x:
+
+# Now try requiring a version.
+
+rm -rf autom4te*.cache # Will have to re-run aclocal.
+
+# Hopefully the Python team will never release such a version :-)
+echo 'AM_PATH_PYTHON([9999.9], [])' > mypy.m4
+$ACLOCAL
+$AUTOCONF
+./configure >stdout 2>stderr && {
+  cat stdout
+  cat stderr >&2
+  exit 1
+}
+cat stdout
+cat stderr >&2
+$EGREP 'checking for a Python interpreter with version >= 9999\.9\.\.\. no(ne)? *$' stdout
+grep 'no suitable Python interpreter found' stderr
+
+# Now try requiring a version and using a custom ACTION-IF-NOT-FOUND.
+
+echo 'AM_PATH_PYTHON([9999.9], [], [echo "$PYTHON" > py])' > mypy.m4
+$AUTOCONF --force
+./configure
+test x"$(cat py)" = x:
+
+: