[libgudev] tests: Add test suite

[Bastien Nocera <hadess src gnome org>]

commit 0a942cc5dd79837cdc0c73ffd748f8ac4d778390
Author: Bastien Nocera <hadess hadess net>
Date:   Wed Nov 2 17:27:44 2016 +0100

    tests: Add test suite
    
    With the first test for a GUdevEnumerator bug.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=773224

 Makefile.am                    |    2 +
 Makefile.decl                  |   53 ++++++++++++++++++++++++++
 configure.ac                   |   12 ++++++
 tests/Makefile.am              |   16 ++++++++
 tests/test-enumerator-filter.c |   81 ++++++++++++++++++++++++++++++++++++++++
 5 files changed, 164 insertions(+), 0 deletions(-)
---
diff --git a/Makefile.am b/Makefile.am
index 1f941f6..2df90eb 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -174,6 +174,8 @@ if ENABLE_GTK_DOC
 SUBDIRS += docs
 endif
 
+SUBDIRS += tests
+
 #docs/html:
 #      $(AM_V_at)$(MKDIR_P) $(dir $@)
 #      $(AM_V_LN)$(LN_S) -f ../gudev/html $@
diff --git a/Makefile.decl b/Makefile.decl
new file mode 100644
index 0000000..aab33c3
--- /dev/null
+++ b/Makefile.decl
@@ -0,0 +1,53 @@
+GTESTER        = gtester               # in $PATH for non-GLIB packages
+GTESTER_REPORT = gtester-report                # in $PATH for non-GLIB packages
+
+# initialize variables for unconditional += appending
+TEST_PROGS =
+
+# test: run all tests in cwd and subdirs
+test:  ${TEST_PROGS}
+       @test -z "${TEST_PROGS}" || ${GTESTER} --verbose ${TEST_PROGS}
+       @ for subdir in $(SUBDIRS) . ; do \
+           test "$$subdir" = "." -o "$$subdir" = "po" || \
+           ( cd $$subdir && $(MAKE) $(AM_MAKEFLAGS) $@ ) || exit $? ; \
+         done
+
+# test-report: run tests in subdirs and generate report
+# perf-report: run tests in subdirs with -m perf and generate report
+# full-report: like test-report: with -m perf and -m slow
+test-report perf-report full-report:   ${TEST_PROGS}
+       @test -z "${TEST_PROGS}" || { \
+         case $@ in \
+         test-report) test_options="-k";; \
+         perf-report) test_options="-k -m=perf";; \
+         full-report) test_options="-k -m=perf -m=slow";; \
+         esac ; \
+         if test -z "$$GTESTER_LOGDIR" ; then  \
+           ${GTESTER} --verbose $$test_options -o test-report.xml ${TEST_PROGS} ; \
+         elif test -n "${TEST_PROGS}" ; then \
+           ${GTESTER} --verbose $$test_options -o `mktemp "$$GTESTER_LOGDIR/log-XXXXXX"` ${TEST_PROGS} ; \
+         fi ; \
+       }
+       @ ignore_logdir=true ; \
+         if test -z "$$GTESTER_LOGDIR" ; then \
+           GTESTER_LOGDIR=`mktemp -d "\`pwd\`/.testlogs-XXXXXX"`; export GTESTER_LOGDIR ; \
+           ignore_logdir=false ; \
+         fi ; \
+         for subdir in $(SUBDIRS) . ; do \
+           test "$$subdir" = "." -o "$$subdir" = "po" || \
+           ( cd $$subdir && $(MAKE) $(AM_MAKEFLAGS) $@ ) || exit $? ; \
+         done ; \
+         $$ignore_logdir || { \
+           echo '<?xml version="1.0"?>' > $@.xml ; \
+           echo '<report-collection>'  >> $@.xml ; \
+           for lf in `ls -L "$$GTESTER_LOGDIR"/.` ; do \
+             sed '1,1s/^<?xml\b[^>?]*?>//' <"$$GTESTER_LOGDIR"/"$$lf" >> $@.xml ; \
+           done ; \
+           echo >> $@.xml ; \
+           echo '</report-collection>' >> $@.xml ; \
+           rm -rf "$$GTESTER_LOGDIR"/ ; \
+           ${GTESTER_REPORT} --version 2>/dev/null 1>&2 ; test "$$?" != 0 || ${GTESTER_REPORT} $@.xml 
> $@.html ; \
+         }
+.PHONY: test test-report perf-report full-report
+# run make test as part of make check
+check-local: test
diff --git a/configure.ac b/configure.ac
index 328b311..7b67b3b 100644
--- a/configure.ac
+++ b/configure.ac
@@ -41,9 +41,19 @@ GOBJECT_INTROSPECTION_CHECK([1.31.1])
 PKG_CHECK_MODULES([LIBUDEV], [libudev >= 199])
 PKG_CHECK_MODULES([GLIB], [glib-2.0 >= 2.30.0 gobject-2.0 >= 2.30.0 gio-2.0])
 
+AC_ARG_ENABLE([umockdev],
+             AS_HELP_STRING([--disable-umockdev], [disable umockdev tests (default: enabled)]),,
+             [enable_umockdev=yes])
+if test x"$enable_umockdev" != x"no" ; then
+       PKG_CHECK_MODULES([UMOCKDEV], umockdev-1.0)
+fi
+
+AM_CONDITIONAL(HAVE_UMOCKDEV, [test x"$enable_umockdev" = x"yes"])
+
 AC_CONFIG_FILES([
         Makefile
         gudev-1.0.pc
+        tests/Makefile
         docs/Makefile
         docs/version.xml
 ])
@@ -62,4 +72,6 @@ AC_MSG_RESULT([
         CFLAGS:                  ${CFLAGS}
         CPPFLAGS:                ${CPPFLAGS}
         LDFLAGS:                 ${LDFLAGS}
+
+        umockdev (tests):        ${enable_umockdev}
 ])
diff --git a/tests/Makefile.am b/tests/Makefile.am
new file mode 100644
index 0000000..4352a81
--- /dev/null
+++ b/tests/Makefile.am
@@ -0,0 +1,16 @@
+include $(top_srcdir)/Makefile.decl
+
+all-local: check-local
+
+if HAVE_UMOCKDEV
+
+noinst_PROGRAMS = test-enumerator-filter
+TEST_PROGS += $(noinst_PROGRAMS)
+
+test_enumerator_filter_SOURCES = test-enumerator-filter.c
+test_enumerator_filter_CFLAGS = $(UMOCKDEV_CFLAGS) -I$(top_srcdir)
+test_enumerator_filter_LDADD = $(UMOCKDEV_LIBS) $(top_builddir)/libgudev-1.0.la
+
+endif
+
+EXTRA_DIST = test-enumerator-filter.c
diff --git a/tests/test-enumerator-filter.c b/tests/test-enumerator-filter.c
new file mode 100644
index 0000000..e5fc0b6
--- /dev/null
+++ b/tests/test-enumerator-filter.c
@@ -0,0 +1,81 @@
+/* umockdev example: use libumockdev in C to fake a battery
+ * Build with:
+ * gcc battery.c -Wall `pkg-config --cflags --libs umockdev-1.0 gio-2.0` -o /tmp/battery
+ * Run with:
+ * umockdev-wrapper /tmp/battery
+ *
+ * Copyright (C) 2013 Canonical Ltd.
+ * Author: Martin Pitt <martin pitt ubuntu com>
+ *
+ * umockdev is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * umockdev 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
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this program; If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <locale.h>
+#include <unistd.h>
+#include <stdio.h>
+#include <sys/wait.h>
+#include <glib.h>
+#include <gio/gio.h>
+#include <umockdev.h>
+
+#include <gudev/gudev.h>
+
+static void
+test_enumerator_filter (void)
+{
+       /* create test bed */
+       UMockdevTestbed *testbed = umockdev_testbed_new ();
+
+       /* Add 2 devices in the USB subsystem, and one in the DRM subsystem */
+       umockdev_testbed_add_device (testbed, "usb", "dev1", NULL,
+                                    "idVendor", "0815", "idProduct", "AFFE", NULL,
+                                    "ID_MODEL", "KoolGadget", NULL);
+
+       umockdev_testbed_add_device (testbed, "usb", "dev2", NULL,
+                                    "idVendor", "0815", "idProduct", "AFFF", NULL,
+                                    "ID_MODEL", "KoolGadget 2", NULL);
+
+       umockdev_testbed_add_device (testbed, "drm", "dev3", NULL,
+                                    "ID_FOR_SEAT", "drm-pci-0000_00_02_0", NULL);
+
+       /* Check the number of items in GUdevClient */
+       const gchar *subsystems[] = { "drm", NULL};
+       GUdevClient *client = g_udev_client_new (subsystems);
+
+       GList *devices = g_udev_client_query_by_subsystem (client, NULL);
+       g_assert_cmpint (g_list_length (devices), ==, 3);
+       g_list_free_full (devices, g_object_unref);
+
+       devices = g_udev_client_query_by_subsystem (client, "usb");
+       g_assert_cmpint (g_list_length (devices), ==, 2);
+       g_list_free_full (devices, g_object_unref);
+
+       /* Check the number of items in GUdevEnumerator */
+       GUdevEnumerator *enumerator = g_udev_enumerator_new (client);
+       devices = g_udev_enumerator_execute (enumerator);
+       g_assert_cmpint (g_list_length (devices), ==, 1);
+       g_list_free_full (devices, g_object_unref);
+}
+
+int main(int argc, char **argv)
+{
+       setlocale (LC_ALL, NULL);
+       g_test_init (&argc, &argv, NULL);
+
+       g_assert (umockdev_in_mock_environment ());
+
+       g_test_add_func ("/gudev/enumerator_filter", test_enumerator_filter);
+
+       return g_test_run ();
+}