feat: Power-Cycle-Zähler für den Werksreset

2026-09-11 13:39:01 +02:00
parent 35b59a64ed
commit 663825c165
4 changed files with 147 additions and 0 deletions
@@ -0,0 +1,75 @@
+#include "unity.h"
+#include "fake_flash.h"
+#include "config/nl_flash_layout.h"
+#include "config/nl_reset_counter.h"
+
+static uint8_t boot(void)
+{
+    nl_resetcnt_init(NL_FL_RESETCNT);
+    return nl_resetcnt_boot();
+}
+
+void setUp(void) { fake_flash_reset(); }
+
+void tearDown(void)
+{
+    TEST_ASSERT_EQUAL_UINT(0, fake_flash_dirty_writes);
+}
+
+static void test_first_boot_is_one(void)
+{
+    TEST_ASSERT_EQUAL_UINT8(1, boot());
+}
+
+static void test_fast_boots_count_up(void)
+{
+    for (uint8_t i = 1; i <= 5; i++)
+        TEST_ASSERT_EQUAL_UINT8(i, boot());
+}
+
+static void test_clear_resets(void)
+{
+    boot();
+    boot();
+    TEST_ASSERT_EQUAL_INT(0, nl_resetcnt_clear());
+    TEST_ASSERT_EQUAL_UINT8(1, boot());
+}
+
+static void test_clear_twice_writes_once(void)
+{
+    boot();
+    nl_resetcnt_clear();
+    nl_resetcnt_clear();
+    /* slot 0: count 1, slot 1: count 0, slot 2 still free */
+    TEST_ASSERT_EQUAL_HEX8(0xFF, fake_flash_mem[NL_FL_RESETCNT + 8]);
+}
+
+static void test_wraps_after_full_sector(void)
+{
+    for (int i = 0; i < 700; i++) {
+        boot();
+        nl_resetcnt_clear();
+    }
+    TEST_ASSERT_EQUAL_UINT(1, fake_flash_erases[NL_FL_RESETCNT / NL_FLASH_SECTOR_SIZE]);
+    TEST_ASSERT_EQUAL_UINT8(1, boot());
+    TEST_ASSERT_EQUAL_UINT8(2, boot());
+}
+
+static void test_garbage_counts_as_zero(void)
+{
+    fake_flash_mem[NL_FL_RESETCNT + 0] = 0x12;
+    fake_flash_mem[NL_FL_RESETCNT + 3] = 0x00;
+    TEST_ASSERT_EQUAL_UINT8(1, boot());
+}
+
+int main(void)
+{
+    UNITY_BEGIN();
+    RUN_TEST(test_first_boot_is_one);
+    RUN_TEST(test_fast_boots_count_up);
+    RUN_TEST(test_clear_resets);
+    RUN_TEST(test_clear_twice_writes_once);
+    RUN_TEST(test_wraps_after_full_sector);
+    RUN_TEST(test_garbage_counts_as_zero);
+    return UNITY_END();
+}