[libgudev/wip/hadess/double-decimal-separator: 2/2] tests: Add test for ", " decimal separator locales

[Bastien Nocera <hadess src gnome org>]

commit ffeac9634c6c6249e089197565140e4824592c20
Author: Bastien Nocera <hadess hadess net>
Date:   Fri Aug 13 12:54:38 2021 +0200

    tests: Add test for "," decimal separator locales

 tests/meson.build   |  4 ++++
 tests/test-double.c | 63 +++++++++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 67 insertions(+)
---
diff --git a/tests/meson.build b/tests/meson.build
index 6995801..55fd09d 100644
--- a/tests/meson.build
+++ b/tests/meson.build
@@ -7,6 +7,10 @@ libgudev_tests = {
     'dependencies': [gio_dep, umockdev_dep],
     'environment': ['LD_PRELOAD=libumockdev-preload.so.0'],
   },
+  'test-double': {
+    'dependencies': [gio_dep, umockdev_dep],
+    'environment': ['LD_PRELOAD=libumockdev-preload.so.0', 'LC_NUMERIC=fr_FR.UTF-8'],
+  },
 }
 
 libgudev_tests_deps = [
diff --git a/tests/test-double.c b/tests/test-double.c
new file mode 100644
index 0000000..0092d8b
--- /dev/null
+++ b/tests/test-double.c
@@ -0,0 +1,63 @@
+/*
+ * SPDX-FileCopyrightText: 2021 Red Hat Inc.
+ * SPDX-License-Identifier: LGPL-2.1-or-later
+ *
+ * Author: Bastien Nocera <hadess hadess net>
+ */
+
+#include <locale.h>
+#include <unistd.h>
+#include <stdio.h>
+#include <sys/wait.h>
+#include <glib.h>
+#include <gio/gio.h>
+#include <umockdev.h>
+#include <langinfo.h>
+
+#include <gudev/gudev.h>
+
+static void
+test_double (void)
+{
+       /* create test bed */
+       UMockdevTestbed *testbed = umockdev_testbed_new ();
+
+       /* Relies on a test bed having been set up */
+       g_assert (umockdev_in_mock_environment ());
+
+       g_assert_cmpstr (nl_langinfo(RADIXCHAR), ==, ",");
+
+       umockdev_testbed_add_device (testbed, "platform", "dev1", NULL,
+                                    "in_accel_scale", "0.0000098", NULL,
+                                    "ID_MODEL", "KoolGadget", "SCALE", "0.0000098", NULL);
+
+       /* Check the number of items in GUdevClient */
+       const gchar *subsystems[] = { "platform", NULL};
+       GUdevClient *client = g_udev_client_new (subsystems);
+       GUdevDevice *dev;
+       g_autofree char *path = NULL;
+       gdouble scale;
+
+       GList *devices = g_udev_client_query_by_subsystem (client, NULL);
+       g_assert_cmpint (g_list_length (devices), ==, 1);
+       dev = devices->data;
+
+       scale = g_udev_device_get_sysfs_attr_as_double (dev, "in_accel_scale");
+       g_assert_cmpfloat (scale, ==, 0.0000098);
+
+       scale = g_udev_device_get_property_as_double (dev, "SCALE");
+       g_assert_cmpfloat (scale, ==, 0.0000098);
+
+       g_list_free_full (devices, g_object_unref);
+}
+
+int main(int argc, char **argv)
+{
+       setlocale (LC_ALL, NULL);
+       setlocale (LC_NUMERIC, "fr_FR.UTF-8");
+       g_test_init (&argc, &argv, NULL);
+
+       g_test_add_func ("/gudev/double", test_double);
+
+       return g_test_run ();
+}