tests/unit: Strengthen FIFO8 tests

Replace reused bytes { 0x1, 0x2, 0x3, 0x4 } by { 0x9, 0xa, 0xb, 0xc }
to be sure a different value is overwritten.

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Message-Id: <20240906132909.78886-2-philmd@linaro.org>
diff --git a/tests/unit/test-fifo.c b/tests/unit/test-fifo.c
index 1e54cde..9b3a494 100644
--- a/tests/unit/test-fifo.c
+++ b/tests/unit/test-fifo.c
@@ -22,7 +22,7 @@
 {
     Fifo8 fifo;
     uint8_t data_in1[] = { 0x1, 0x2, 0x3, 0x4 };
-    uint8_t data_in2[] = { 0x5, 0x6, 0x7, 0x8, 0x1, 0x2 };
+    uint8_t data_in2[] = { 0x5, 0x6, 0x7, 0x8, 0x9, 0xa };
     const uint8_t *buf;
     uint32_t count;
 
@@ -65,7 +65,7 @@
 {
     Fifo8 fifo;
     uint8_t data_in1[] = { 0x1, 0x2, 0x3, 0x4 };
-    uint8_t data_in2[] = { 0x5, 0x6, 0x7, 0x8, 0x1, 0x2 };
+    uint8_t data_in2[] = { 0x5, 0x6, 0x7, 0x8, 0x9, 0xa };
     const uint8_t *buf;
     uint32_t count;
 
@@ -112,7 +112,7 @@
 {
     Fifo8 fifo;
     uint8_t data_in1[] = { 0x1, 0x2, 0x3, 0x4 };
-    uint8_t data_in2[] = { 0x5, 0x6, 0x7, 0x8, 0x1, 0x2, 0x3, 0x4 };
+    uint8_t data_in2[] = { 0x5, 0x6, 0x7, 0x8, 0x9, 0xa, 0xb, 0xc };
     uint8_t data_out[4];
     int count;
 
@@ -126,8 +126,8 @@
     g_assert(count == 4);
     count = fifo8_pop_buf(&fifo, data_out, 4);
     g_assert(count == 4);
-    g_assert(data_out[0] == 0x1 && data_out[1] == 0x2 &&
-             data_out[2] == 0x3 && data_out[3] == 0x4);
+    g_assert(data_out[0] == 0x9 && data_out[1] == 0xa &&
+             data_out[2] == 0xb && data_out[3] == 0xc);
 
     g_assert(fifo8_num_used(&fifo) == 0);
     fifo8_destroy(&fifo);
@@ -157,7 +157,7 @@
 {
     Fifo8 fifo;
     uint8_t data_in1[] = { 0x1, 0x2, 0x3, 0x4 };
-    uint8_t data_in2[] = { 0x5, 0x6, 0x7, 0x8, 0x1, 0x2, 0x3, 0x4 };
+    uint8_t data_in2[] = { 0x5, 0x6, 0x7, 0x8, 0x9, 0xa, 0xb, 0xc };
     uint8_t data_out[4];
     int count;