diff --git a/tests/test_midi_rx.py b/tests/test_midi_rx.py
index 37b7ece1..1997dd73 100644
--- a/tests/test_midi_rx.py
+++ b/tests/test_midi_rx.py
@@ -58,4 +58,4 @@ def test_rx(capfd, config, build_midi):
         capture = capfd.readouterr().out
         result = tester.run(capture.split("\n"))
 
-        assert result
\ No newline at end of file
+        assert result, f"expected: {expected}\n capture: {capture}"
\ No newline at end of file
diff --git a/tests/test_midi_tx.py b/tests/test_midi_tx.py
index bbf41bbb..ade525d6 100644
--- a/tests/test_midi_tx.py
+++ b/tests/test_midi_tx.py
@@ -56,4 +56,4 @@ def test_tx(capfd, config, build_midi):
         capture = capfd.readouterr().out
         result = tester.run(capture.split("\n"))
 
-        assert result
\ No newline at end of file
+        assert result, f"expected: {expected}\n capture: {capture}"
\ No newline at end of file
diff --git a/tests/xua_unit_tests/src/test_midi_parse/test_midi_parse.c b/tests/xua_unit_tests/src/test_midi_parse/test_midi_parse.c
index e99e8115..39c74cec 100644
--- a/tests/xua_unit_tests/src/test_midi_parse/test_midi_parse.c
+++ b/tests/xua_unit_tests/src/test_midi_parse/test_midi_parse.c
@@ -19,7 +19,7 @@
 #define DATA_RANGE      128
 #define DATA_MASK       (DATA_RANGE - 1)
 
-#define NUM_TESTS_PER_TEST  10
+#define NUM_TESTS_PER_TEST  30
 
 #define CABLE_NUM       2
 #define RANDOM_SEED     6031769