diff --git a/test/testautomation_pen.c b/test/testautomation_pen.c
index 33b71275f7..e0918def9b 100644
--- a/test/testautomation_pen.c
+++ b/test/testautomation_pen.c
@@ -1342,7 +1342,7 @@ pen_movementAndAxes(void *arg)
 
     _pen_simulate_init(&ptest, simulated_pens, 2);
     /* Simulate pen movements */
-    while ((last_action = _pen_simulate(steps, &sim_pc, &simulated_pens[0], 2))) {
+    while ((last_action = _pen_simulate(steps, &sim_pc, &simulated_pens[0], 2)) != 0) {
         int attempts = 0;
         SDL_Pen *simpen = &simulated_pens[last_action->pen_index];
         SDL_PenID reported_which = 0;
diff --git a/test/testime.c b/test/testime.c
index 0e75e274ac..003b3f19b4 100644
--- a/test/testime.c
+++ b/test/testime.c
@@ -501,7 +501,7 @@ static void _Redraw(int rendererID)
         drawnTextRect.y = dstrect.y;
         drawnTextRect.h = dstrect.h;
 
-        while ((codepoint = utf8_decode(utext, len = utf8_length(*utext)))) {
+        while ((codepoint = utf8_decode(utext, len = utf8_length(*utext))) != 0) {
             Sint32 advance = unifont_draw_glyph(codepoint, rendererID, &dstrect) * UNIFONT_DRAW_SCALE;
             dstrect.x += advance;
             drawnTextRect.w += advance;
@@ -573,7 +573,7 @@ static void _Redraw(int rendererID)
         drawnTextRect.y = dstrect.y;
         drawnTextRect.h = dstrect.h;
 
-        while ((codepoint = utf8_decode(utext, len = utf8_length(*utext)))) {
+        while ((codepoint = utf8_decode(utext, len = utf8_length(*utext))) != 0) {
             Sint32 advance = unifont_draw_glyph(codepoint, rendererID, &dstrect) * UNIFONT_DRAW_SCALE;
             dstrect.x += advance;
             drawnTextRect.w += advance;