From e3601ac32d8b91baca527d7fa5bec0dc88536c7a Mon Sep 17 00:00:00 2001
From: Matthias Vogelgesang <matthias.vogelgesang@kit.edu>
Date: Fri, 4 Nov 2016 09:40:35 +0100
Subject: Add test program to check stability

---
 CMakeLists.txt |   3 ++
 tests/test.c   | 127 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 130 insertions(+)
 create mode 100644 tests/test.c

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 601accc..9b12575 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -46,3 +46,6 @@ target_link_libraries(ucaufo
 
 install(TARGETS ucaufo
     LIBRARY DESTINATION ${LIBUCA_PLUGINDIR})
+
+add_executable(test tests/test.c)
+target_link_libraries(test ucaufo)
diff --git a/tests/test.c b/tests/test.c
new file mode 100644
index 0000000..34a83cf
--- /dev/null
+++ b/tests/test.c
@@ -0,0 +1,127 @@
+#include <stdlib.h>
+#include <string.h>
+#include <uca/uca-camera.h>
+#include <uca/uca-plugin-manager.h>
+
+UcaPluginManager *manager;
+UcaCamera *camera;
+
+static void
+dispose (void)
+{
+    g_object_unref (camera);
+    g_object_unref (manager);
+}
+
+static void
+pass_or_die (GError *error)
+{
+    if (error == NULL)
+        return;
+
+    g_print ("Error: %s\n", error->message);
+    dispose ();
+    exit (1);
+}
+
+static void
+print_header (const gchar *header)
+{
+    guint remaining;
+
+    remaining = 79 - strlen (header);
+    g_print ("%s ", header);
+
+    for (guint i = 0; i < remaining; i++)
+        g_print ("-");
+
+    g_print ("\n");
+}
+
+static void
+check_roi_size (UcaCamera *camera, guint x, guint y, guint width, guint height, GError **error)
+{
+    guint roi_height;
+    guint16 *frame;
+
+    g_object_set (camera, "roi-height", height, NULL);
+    g_object_get (camera, "roi-height", &roi_height, NULL);
+
+    if (height != roi_height) {
+        g_print (" Error: ROI is %u x %u pixels\n", width, roi_height);
+        return;
+    }
+
+    frame = g_malloc0 (2 * width * height);
+
+    uca_camera_start_recording (camera, error);
+
+    if (*error != NULL)
+        goto exit_check_roi_size;
+
+    for (guint i = 0; i < 30; i++) {
+        uca_camera_grab (camera, frame, error);
+
+        if (*error != NULL)
+            goto exit_check_roi_size;
+    }
+
+    uca_camera_stop_recording (camera, error);
+
+    if (*error != NULL)
+        goto exit_check_roi_size;
+
+exit_check_roi_size:
+    g_free (frame);
+}
+
+static void
+test_roi_change (UcaCamera *camera)
+{
+    guint sensor_width;
+    guint sensor_height;
+    guint roi_width;
+    guint roi_height;
+
+    print_header ("Check different region-of-interest sizes");
+
+    g_object_get (camera,
+                  "sensor-width", &sensor_width,
+                  "sensor-height", &sensor_height,
+                  "roi-width", &roi_width,
+                  "roi-height", &roi_height,
+                  NULL);
+
+    g_print (" Sensor size: %u x %u pixels\n", sensor_width, sensor_height);
+
+    for (roi_height = sensor_height; roi_height > 8; roi_height /= 2) {
+        GError *error = NULL;
+
+        g_print (" Test ROI %u x %u pixels: ", sensor_width, roi_height);
+
+        check_roi_size (camera, 0, 0, sensor_width, sensor_height, &error);
+
+        if (error == NULL) {
+            g_print ("PASS\n");
+        }
+        else {
+            g_print ("FAIL (%s)\n", error->message);
+            g_error_free (error);
+        }
+    }
+}
+
+int
+main (int argc, char **argv)
+{
+    GError *error = NULL;
+
+    manager = uca_plugin_manager_new ();
+    camera = uca_plugin_manager_get_camera (manager, "ufo", &error, NULL);
+
+    pass_or_die (error);
+
+    test_roi_change (camera);
+
+    dispose ();
+}
-- 
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