7c6081e02b
When running multiple tests, e.g. by using unit-tests target, it is hard to differentiate, which output comes from which file and/or configuration. This patch makes the output easier to analyze and understand by using new wrapper macro cb_run_group_tests(). This macro uses __TEST_NAME__ value (containing test path and Makefile test name) as a group name when calling cmocka group runner. Example: Test path: tests/lib/ Makefile test name: cbmem_stage_cache-test Test group array name: tests Result: tests/lib/cbmem_stage_cache-test(tests) Signed-off-by: Jakub Czapiga <jacz@semihalf.com> Change-Id: I4fd936d00d77cbe2637b857ba03b4a208428ea0d Reviewed-on: https://review.coreboot.org/c/coreboot/+/57144 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Paul Fagerburg <pfagerburg@chromium.org> Reviewed-by: Julius Werner <jwerner@chromium.org>
134 lines
3.3 KiB
C
134 lines
3.3 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
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#include <tests/test.h>
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#include <lib.h>
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#include <symbols.h>
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#if CONFIG_STACK_SIZE == 0
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# define STACK_SIZE 0x1000
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#else
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# define STACK_SIZE CONFIG_STACK_SIZE
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#endif
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/* Value used for stack initialization. Change if implementation changes. */
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#define STACK_GUARD_VALUE 0xDEADBEEF
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__weak extern u8 _stack[];
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__weak extern u8 _estack[];
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TEST_REGION(stack, STACK_SIZE);
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static void fill_stack(u32 value)
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{
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u32 *stack = (u32 *)_stack;
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for (size_t i = 0; i < STACK_SIZE / sizeof(u32); ++i)
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stack[i] = value;
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}
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/* Fill stack region with guard value. */
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static void clean_stack(void)
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{
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fill_stack(STACK_GUARD_VALUE);
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}
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static int setup_stack_test(void **state)
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{
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void *top_of_stack = _stack + sizeof(_stack);
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clean_stack();
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*state = top_of_stack;
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return 0;
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}
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static void test_empty_stack(void **state)
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{
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void *top_of_stack = *state;
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/* Expect success when checking empty stack. */
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assert_int_equal(0, checkstack(top_of_stack, 0));
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}
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static void test_almost_full_stack(void **state)
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{
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void *top_of_stack = *state;
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u32 *stack = (u32 *)_stack;
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/* Fill stack with random value except last word */
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for (size_t i = 1; i < STACK_SIZE / sizeof(u32); ++i)
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stack[i] = 0xAA11FF44;
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/* Expect success when checking almost-full stack,
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because last guard value is present */
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assert_int_equal(0, checkstack(top_of_stack, 0));
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}
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static void test_full_stack(void **state)
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{
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void *top_of_stack = *state;
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/* Fill stack with value different than stack guard */
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fill_stack(0x600DB015);
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/* Expect failure when checking full stack as absence of guard value at the end of
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the stack indicates stack overrun. */
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expect_assert_failure(checkstack(top_of_stack, 0));
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}
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static void test_partialy_filled_stack(void **state)
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{
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void *top_of_stack = *state;
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u32 *stack = (u32 *)_stack;
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size_t i = STACK_SIZE / sizeof(u32) / 2;
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for (; i < STACK_SIZE / sizeof(u32); ++i)
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stack[i] = 0x4321ABDC + i;
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/* Expect success when checking partially-filled stack,
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because only part of stack is filled with non-guard value. */
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assert_int_equal(0, checkstack(top_of_stack, 0));
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}
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static void test_alternately_filled_stack(void **state)
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{
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void *top_of_stack = *state;
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u32 *stack = (u32 *)_stack;
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size_t i;
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for (i = 0; i < STACK_SIZE / sizeof(u32); i += 2)
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stack[i] = STACK_GUARD_VALUE;
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for (i = 1; i < STACK_SIZE / sizeof(u32); i += 2)
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stack[i] = 0x42420707;
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assert_int_equal(0, checkstack(top_of_stack, 0));
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}
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static void test_incorrectly_initialized_stack(void **state)
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{
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void *top_of_stack = *state;
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u32 *stack = (u32 *)_stack;
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/* Remove last stack guard value */
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stack[0] = 0xFF00FF11;
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/* Expect failure when there is no last stack guard value even if no other value was
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changed. */
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expect_assert_failure(checkstack(top_of_stack, 0));
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}
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int main(void)
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{
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const struct CMUnitTest tests[] = {
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cmocka_unit_test_setup(test_empty_stack, setup_stack_test),
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cmocka_unit_test_setup(test_almost_full_stack, setup_stack_test),
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cmocka_unit_test_setup(test_full_stack, setup_stack_test),
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cmocka_unit_test_setup(test_partialy_filled_stack, setup_stack_test),
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cmocka_unit_test_setup(test_alternately_filled_stack, setup_stack_test),
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cmocka_unit_test_setup(test_incorrectly_initialized_stack, setup_stack_test),
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};
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return cb_run_group_tests(tests, NULL, NULL);
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}
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