tests: add tests on function gui_buffer_valid

1 files changed, 16 insertions, 1 deletions

diff --git a/tests/unit/gui/test-gui-buffer.cpp b/tests/unit/gui/test-gui-buffer.cpp
index 1b056ca7b..401bfa1f5 100644
--- a/tests/unit/gui/test-gui-buffer.cpp
+++ b/tests/unit/gui/test-gui-buffer.cpp
@@ -469,7 +469,22 @@ TEST(GuiBuffer, UserSetCallbacks)
 
 TEST(GuiBuffer, Valid)
 {
-    /* TODO: write tests */
+    struct t_gui_buffer *buffer;
+
+    buffer = gui_buffer_new (NULL, TEST_BUFFER_NAME,
+                             &test_buffer_input_cb, NULL, NULL,
+                             &test_buffer_close_cb, NULL, NULL);
+
+    LONGS_EQUAL(0, gui_buffer_valid ((struct t_gui_buffer *)0x1));
+    LONGS_EQUAL(0, gui_buffer_valid (buffer + 1));
+
+    /* NULL pointer is considered valid: to print on core buffer */
+    LONGS_EQUAL(1, gui_buffer_valid (NULL));
+
+    LONGS_EQUAL(1, gui_buffer_valid (gui_buffers));
+    LONGS_EQUAL(1, gui_buffer_valid (buffer));
+
+    gui_buffer_close (buffer);
 }
 
 /*