[libgdata] tests: Add one more test for GDataBuffer

[Ondrej Holy <oholy src gnome org>]

commit 4b29a94a71317ffa9df282fef7f7be126687343a
Author: Ondrej Holy <oholy redhat com>
Date:   Mon Aug 22 12:02:44 2016 +0200

    tests: Add one more test for GDataBuffer
    
    This test reproduces bug 769727.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=769727

 gdata/tests/buffer.c |   37 +++++++++++++++++++++++++++++++++++++
 1 files changed, 37 insertions(+), 0 deletions(-)
---
diff --git a/gdata/tests/buffer.c b/gdata/tests/buffer.c
index 02012d6..c4e9d13 100644
--- a/gdata/tests/buffer.c
+++ b/gdata/tests/buffer.c
@@ -74,6 +74,41 @@ test_buffer_instant_eof (Fixture *f, gconstpointer user_data)
        gdata_buffer_free (buffer);
 }
 
+static gpointer
+test_buffer_thread_eof_func (gpointer user_data)
+{
+       GDataBuffer *buffer = user_data;
+
+       /* HACK: Wait for a while to be sure that gdata_buffer_pop_data() has
+        * been already called. */
+       g_usleep (G_USEC_PER_SEC / 2);
+
+       g_assert_false (gdata_buffer_push_data (buffer, NULL, 0));
+
+       return NULL;
+}
+
+/* The test needs to call gdata_buffer_push_data() from another thread only
+ * once gdata_buffer_pop_data() has reached its blocking loop. */
+static void
+test_buffer_thread_eof (Fixture *f, gconstpointer user_data)
+{
+       GDataBuffer *buffer = NULL;  /* owned */
+       gboolean reached_eof = FALSE;
+       guint8 buf[1];
+
+       g_test_bug ("769727");
+
+       buffer = gdata_buffer_new ();
+
+       g_thread_new (NULL, test_buffer_thread_eof_func, buffer);
+       g_assert_cmpuint (gdata_buffer_pop_data (buffer, buf, sizeof (buf),
+                                                &reached_eof, NULL), ==, 0);
+       g_assert_true (reached_eof);
+
+       gdata_buffer_free (buffer);
+}
+
 static void
 test_buffer_basic (Fixture *f, gconstpointer user_data)
 {
@@ -121,6 +156,8 @@ main (int argc, char *argv[])
                    set_up, test_buffer_construction, tear_down);
        g_test_add ("/buffer/instant-eof", Fixture, NULL,
                    set_up, test_buffer_instant_eof, tear_down);
+       g_test_add ("/buffer/thread-eof", Fixture, NULL,
+                   set_up, test_buffer_thread_eof, tear_down);
        g_test_add ("/buffer/basic", Fixture, NULL,
                    set_up, test_buffer_basic, tear_down);