1 files changed, 74 insertions, 0 deletions
diff --git a/zephyr/test/drivers/default/src/panic_output.c b/zephyr/test/drivers/default/src/panic_output.c
new file mode 100644
index 0000000000..210c862901
--- /dev/null
+++ b/zephyr/test/drivers/default/src/panic_output.c
@@ -0,0 +1,74 @@
+/* Copyright 2022 The ChromiumOS Authors
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+
+#include <zephyr/ztest.h>
+
+#include "panic.h"
+#include "test/drivers/test_mocks.h"
+#include "test/drivers/test_state.h"
+
+ZTEST_SUITE(panic_output, drivers_predicate_post_main, NULL, NULL, NULL, NULL);
+
+ZTEST(panic_output, test_panic_printf)
+{
+	panic_printf("test output string from %s\n", __func__);
+}
+
+ZTEST(panic_output, test_panic_puts)
+{
+	panic_puts("test output string\n");
+}
+
+ZTEST(panic_output, test_panic_sw_reason_is_valid)
+{
+	zassert_false(panic_sw_reason_is_valid(PANIC_SW_BASE - 1), NULL);
+	/* PANIC_SW_DIV_ZERO */
+	zassert_true(panic_sw_reason_is_valid(PANIC_SW_BASE), NULL);
+	/* PANIC_SW_STACK_OVERFLOW */
+	zassert_true(panic_sw_reason_is_valid(PANIC_SW_BASE + 1), NULL);
+	/* PANIC_SW_PD_CRASH */
+	zassert_true(panic_sw_reason_is_valid(PANIC_SW_BASE + 2), NULL);
+	/* PANIC_SW_ASSERT */
+	zassert_true(panic_sw_reason_is_valid(PANIC_SW_BASE + 3), NULL);
+	/* PANIC_SW_WATCHDOG */
+	zassert_true(panic_sw_reason_is_valid(PANIC_SW_BASE + 4), NULL);
+	/* PANIC_SW_RNG */
+	zassert_true(panic_sw_reason_is_valid(PANIC_SW_BASE + 5), NULL);
+	/* PANIC_SW_PMIC_FAULT */
+	zassert_true(panic_sw_reason_is_valid(PANIC_SW_BASE + 6), NULL);
+	zassert_false(panic_sw_reason_is_valid(PANIC_SW_BASE + 7), NULL);
+}
+
+ZTEST(panic_output, test_panic)
+{
+	panic(__func__);
+	zassert_equal(1, system_reset_fake.call_count,
+		      "Expected system_reset() to be called once, but was "
+		      "called %d times",
+		      system_reset_fake.call_count);
+	zassert_equal(0, system_reset_fake.arg0_val,
+		      "Expected system_reset() to be called with flags=0, but "
+		      "got flags=%d",
+		      system_reset_fake.arg0_val);
+}
+
+ZTEST(panic_output, test_panic_assert_fail)
+{
+	int line_num = __LINE__;
+
+	panic_assert_fail("Test panic message", __func__, __FILE__, line_num);
+	zassert_equal(1, software_panic_fake.call_count,
+		      "Expected sofware_panic() to be called once, but was "
+		      "called %d times",
+		      software_panic_fake.call_count);
+	zassert_equal(PANIC_SW_ASSERT, software_panic_fake.arg0_val,
+		      "Expected software_panic() to be called with "
+		      "reason=%d (PANIC_SW_ASSERT) but got %d",
+		      PANIC_SW_ASSERT, software_panic_fake.arg0_val);
+	zassert_equal(line_num, software_panic_fake.arg1_val,
+		      "Expected software_panic() to be called with "
+		      "line=%d but got %d",
+		      line_num, software_panic_fake.arg1_val);
+}