Patrick Georgi submitted this change.
tests: Add lib/fmap-test test case
Signed-off-by: Jakub Czapiga <jacz@semihalf.com>
Change-Id: I885ea05d509d3b1330de7a18531f310d290c6965
Reviewed-on: https://review.coreboot.org/c/coreboot/+/48557
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Julius Werner <jwerner@chromium.org>
---
A tests/include/tests/lib/fmap/fmap_config.h
A tests/include/tests/lib/fmap/fmap_data.h
M tests/lib/Makefile.inc
A tests/lib/fmap-test.c
4 files changed, 567 insertions(+), 0 deletions(-)
diff --git a/tests/include/tests/lib/fmap/fmap_config.h b/tests/include/tests/lib/fmap/fmap_config.h
new file mode 100644
index 0000000..0a2809b
--- /dev/null
+++ b/tests/include/tests/lib/fmap/fmap_config.h
@@ -0,0 +1,88 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
+#ifndef FMAPTOOL_GENERATED_HEADER_H_
+#define FMAPTOOL_GENERATED_HEADER_H_
+
+/*
+ * This file was generated using fmaptool from util/cbfstools using
+ * src/mainboard/google/octopus/chromeos.fmd
+ */
+#define FMAP_OFFSET 0x204000
+#define FMAP_SIZE 0x620
+
+#define FMAP_SECTION_FLASH_START 0
+#define FMAP_SECTION_FLASH_SIZE 0x1000000
+#define FMAP_SECTION_WP_RO_START 0
+#define FMAP_SECTION_WP_RO_SIZE 0x400000
+#define FMAP_SECTION_SI_DESC_START 0
+#define FMAP_SECTION_SI_DESC_SIZE 0x1000
+#define FMAP_SECTION_IFWI_START 0x1000
+#define FMAP_SECTION_IFWI_SIZE 0x1ff000
+#define FMAP_SECTION_RO_VPD_START 0x200000
+#define FMAP_SECTION_RO_VPD_SIZE 0x4000
+#define FMAP_SECTION_RO_SECTION_START 0x204000
+#define FMAP_SECTION_RO_SECTION_SIZE 0x1fc000
+#define FMAP_SECTION_FMAP_START 0x204000
+#define FMAP_SECTION_FMAP_SIZE 0x800
+#define FMAP_SECTION_RO_FRID_START 0x204800
+#define FMAP_SECTION_RO_FRID_SIZE 0x40
+#define FMAP_SECTION_RO_FRID_PAD_START 0x204840
+#define FMAP_SECTION_RO_FRID_PAD_SIZE 0x7c0
+#define FMAP_SECTION_COREBOOT_START 0x205000
+#define FMAP_SECTION_COREBOOT_SIZE 0x1f8000
+#define FMAP_SECTION_GBB_START 0x3fd000
+#define FMAP_SECTION_GBB_SIZE 0x3000
+#define FMAP_SECTION_MISC_RW_START 0x400000
+#define FMAP_SECTION_MISC_RW_SIZE 0x30000
+#define FMAP_SECTION_RW_PRESERVE_START 0x400000
+#define FMAP_SECTION_RW_PRESERVE_SIZE 0x21000
+#define FMAP_SECTION_UNIFIED_MRC_CACHE_START 0x400000
+#define FMAP_SECTION_UNIFIED_MRC_CACHE_SIZE 0x21000
+#define FMAP_SECTION_RECOVERY_MRC_CACHE_START 0x400000
+#define FMAP_SECTION_RECOVERY_MRC_CACHE_SIZE 0x10000
+#define FMAP_SECTION_RW_MRC_CACHE_START 0x410000
+#define FMAP_SECTION_RW_MRC_CACHE_SIZE 0x10000
+#define FMAP_SECTION_RW_VAR_MRC_CACHE_START 0x420000
+#define FMAP_SECTION_RW_VAR_MRC_CACHE_SIZE 0x1000
+#define FMAP_SECTION_RW_ELOG_START 0x421000
+#define FMAP_SECTION_RW_ELOG_SIZE 0x3000
+#define FMAP_SECTION_RW_SHARED_START 0x424000
+#define FMAP_SECTION_RW_SHARED_SIZE 0x4000
+#define FMAP_SECTION_SHARED_DATA_START 0x424000
+#define FMAP_SECTION_SHARED_DATA_SIZE 0x2000
+#define FMAP_SECTION_VBLOCK_DEV_START 0x426000
+#define FMAP_SECTION_VBLOCK_DEV_SIZE 0x2000
+#define FMAP_SECTION_RW_VPD_START 0x428000
+#define FMAP_SECTION_RW_VPD_SIZE 0x2000
+#define FMAP_SECTION_RW_NVRAM_START 0x42a000
+#define FMAP_SECTION_RW_NVRAM_SIZE 0x5000
+#define FMAP_SECTION_FPF_STATUS_START 0x42f000
+#define FMAP_SECTION_FPF_STATUS_SIZE 0x1000
+#define FMAP_SECTION_RW_SECTION_A_START 0x430000
+#define FMAP_SECTION_RW_SECTION_A_SIZE 0x480000
+#define FMAP_SECTION_VBLOCK_A_START 0x430000
+#define FMAP_SECTION_VBLOCK_A_SIZE 0x10000
+#define FMAP_SECTION_FW_MAIN_A_START 0x440000
+#define FMAP_SECTION_FW_MAIN_A_SIZE 0x46ffc0
+#define FMAP_SECTION_RW_FWID_A_START 0x8affc0
+#define FMAP_SECTION_RW_FWID_A_SIZE 0x40
+#define FMAP_SECTION_RW_SECTION_B_START 0x8b0000
+#define FMAP_SECTION_RW_SECTION_B_SIZE 0x480000
+#define FMAP_SECTION_VBLOCK_B_START 0x8b0000
+#define FMAP_SECTION_VBLOCK_B_SIZE 0x10000
+#define FMAP_SECTION_FW_MAIN_B_START 0x8c0000
+#define FMAP_SECTION_FW_MAIN_B_SIZE 0x46ffc0
+#define FMAP_SECTION_RW_FWID_B_START 0xd2ffc0
+#define FMAP_SECTION_RW_FWID_B_SIZE 0x40
+#define FMAP_SECTION_SMMSTORE_START 0xd30000
+#define FMAP_SECTION_SMMSTORE_SIZE 0x40000
+#define FMAP_SECTION_RW_LEGACY_START 0xd70000
+#define FMAP_SECTION_RW_LEGACY_SIZE 0x1c0000
+#define FMAP_SECTION_BIOS_UNUSABLE_START 0xf30000
+#define FMAP_SECTION_BIOS_UNUSABLE_SIZE 0x4f000
+#define FMAP_SECTION_DEVICE_EXTENSION_START 0xf7f000
+#define FMAP_SECTION_DEVICE_EXTENSION_SIZE 0x80000
+#define FMAP_SECTION_UNUSED_HOLE_START 0xfff000
+#define FMAP_SECTION_UNUSED_HOLE_SIZE 0x1000
+
+#endif
diff --git a/tests/include/tests/lib/fmap/fmap_data.h b/tests/include/tests/lib/fmap/fmap_data.h
new file mode 100644
index 0000000..eaeabd3
--- /dev/null
+++ b/tests/include/tests/lib/fmap/fmap_data.h
@@ -0,0 +1,148 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
+#ifndef TESTS_FMAP_DATA_H_
+#define TESTS_FMAP_DATA_H_
+
+/*
+ * This file was converted using `xxd -i` from binary output of
+ * fmaptool from util/cbfstools. Data is based on output generated by
+ * mentioned tool using src/mainboard/google/octopus/chromeos.fmd file.
+ */
+
+unsigned char tests_fmap_bin[] = {
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+0x42, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+0x00, 0x00, 0x00, 0x00, 0xd3, 0x00, 0x00, 0x00, 0x04, 0x00, 0x53, 0x4d,
+0x4d, 0x53, 0x54, 0x4f, 0x52, 0x45, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x08, 0x00, 0x00, 0x00, 0xd7, 0x00,
+0x00, 0x00, 0x1c, 0x00, 0x52, 0x57, 0x5f, 0x4c, 0x45, 0x47, 0x41, 0x43,
+0x59, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+0x00, 0x00, 0x00, 0x00, 0xf3, 0x00, 0x00, 0xf0, 0x04, 0x00, 0x42, 0x49,
+0x4f, 0x53, 0x5f, 0x55, 0x4e, 0x55, 0x53, 0x41, 0x42, 0x4c, 0x45, 0x00,
+0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xf0, 0xf7, 0x00,
+0x00, 0x00, 0x08, 0x00, 0x44, 0x45, 0x56, 0x49, 0x43, 0x45, 0x5f, 0x45,
+0x58, 0x54, 0x45, 0x4e, 0x53, 0x49, 0x4f, 0x4e, 0x00, 0x00, 0x00, 0x00,
+0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+0x00, 0x00, 0x00, 0xf0, 0xff, 0x00, 0x00, 0x10, 0x00, 0x00, 0x55, 0x4e,
+0x55, 0x53, 0x45, 0x44, 0x5f, 0x48, 0x4f, 0x4c, 0x45, 0x00, 0x00, 0x00,
+0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
+};
+unsigned int tests_fmap_bin_len = sizeof(tests_fmap_bin);
+
+
+#endif /* TESTS_INCLUDE_LIB_FMAP_FMAP_DATA_H_ */
diff --git a/tests/lib/Makefile.inc b/tests/lib/Makefile.inc
index 5783f18..dba27ec 100644
--- a/tests/lib/Makefile.inc
+++ b/tests/lib/Makefile.inc
@@ -9,6 +9,7 @@
tests-y += cbmem_console-romstage-test
tests-y += cbmem_console-ramstage-test
tests-y += list-test
+tests-y += fmap-test
string-test-srcs += tests/lib/string-test.c
string-test-srcs += src/lib/string.c
@@ -44,3 +45,10 @@
list-test-srcs += tests/lib/list-test.c
list-test-srcs += src/lib/list.c
+fmap-test-srcs += tests/lib/fmap-test.c
+fmap-test-srcs += src/lib/fmap.c
+fmap-test-srcs += tests/stubs/console.c
+fmap-test-srcs += src/lib/boot_device.c
+fmap-test-srcs += src/commonlib/region.c
+fmap-test-cflags += -I tests/include/tests/lib/fmap
+fmap-test-cflags += -I 3rdparty/vboot/firmware/include
diff --git a/tests/lib/fmap-test.c b/tests/lib/fmap-test.c
new file mode 100644
index 0000000..372bb85
--- /dev/null
+++ b/tests/lib/fmap-test.c
@@ -0,0 +1,323 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
+#include <stdlib.h>
+#include <string.h>
+
+#include <tests/test.h>
+
+#include <fmap.h>
+#include <commonlib/region.h>
+
+#include <tests/lib/fmap/fmap_data.h>
+#include <tests/lib/fmap/fmap_config.h>
+
+static struct mem_region_device mem_rdev_rw;
+static struct mem_region_device mem_rdev_ro;
+static char *flash_buffer = NULL;
+static size_t flash_buffer_size = 0;
+
+static void prepare_flash_buffer(void)
+{
+ /* Prepare flash buffer with dummy data and FMAP */
+ flash_buffer = malloc(FMAP_SECTION_FLASH_SIZE);
+ flash_buffer_size = FMAP_SECTION_FLASH_SIZE;
+
+ /* Fill first part of buffer with dummy data */
+ for (int i = 0; i < FMAP_SECTION_FMAP_START; ++i)
+ flash_buffer[i] = 'a' + i % ('z' - 'a');
+
+ /* Copy FMAP section into buffer */
+ memcpy(flash_buffer + FMAP_SECTION_FMAP_START, tests_fmap_bin, FMAP_SIZE);
+
+ /* Fill rest of buffer with dummy data */
+ for (int i = FMAP_SECTION_FMAP_START + FMAP_SECTION_FMAP_SIZE;
+ i < FMAP_SECTION_FLASH_SIZE; ++i)
+ flash_buffer[i] = 'a' + i % ('z' - 'a');
+}
+
+static int setup_fmap(void **state)
+{
+ prepare_flash_buffer();
+
+ mem_rdev_rw = (struct mem_region_device)
+ MEM_REGION_DEV_RW_INIT(flash_buffer, FMAP_SECTION_FLASH_SIZE);
+
+ mem_rdev_ro = (struct mem_region_device)
+ MEM_REGION_DEV_RO_INIT(flash_buffer, FMAP_SECTION_FLASH_SIZE);
+
+ return 0;
+}
+
+static int teardown_fmap(void **state)
+{
+ struct mem_region_device empty = {
+ .base = NULL,
+ .rdev = {
+ .root = NULL,
+ .ops = NULL,
+ .region = {
+ .offset = 0,
+ .size = 0
+ }
+ }
+ };
+
+ mem_rdev_rw = empty;
+ mem_rdev_ro = empty;
+
+ free(flash_buffer);
+ flash_buffer = NULL;
+ flash_buffer_size = 0;
+
+ return 0;
+}
+
+void boot_device_init(void)
+{
+ /* Setup in unit test setup function */
+}
+
+const struct region_device *boot_device_ro(void)
+{
+ return &mem_rdev_rw.rdev;
+}
+
+const struct region_device *boot_device_rw(void)
+{
+ return &mem_rdev_rw.rdev;
+}
+
+static void test_fmap_locate_area_as_rdev(void **state)
+{
+ const char buffer[] = "abcdefghijk0123456789";
+ struct region_device rdev;
+
+ assert_int_not_equal(-1, fmap_locate_area_as_rdev("RO_VPD", &rdev));
+ assert_int_equal(FMAP_SECTION_RO_VPD_START, region_device_offset(&rdev));
+ assert_int_equal(FMAP_SECTION_RO_VPD_SIZE, region_device_sz(&rdev));
+
+ /* Check if locating area second time works */
+ assert_int_not_equal(-1, fmap_locate_area_as_rdev("RO_VPD", &rdev));
+ assert_int_equal(FMAP_SECTION_RO_VPD_START, region_device_offset(&rdev));
+ assert_int_equal(FMAP_SECTION_RO_VPD_SIZE, region_device_sz(&rdev));
+
+ assert_int_not_equal(-1, fmap_locate_area_as_rdev("RECOVERY_MRC_CACHE", &rdev));
+ assert_int_equal(FMAP_SECTION_RECOVERY_MRC_CACHE_START, region_device_offset(&rdev));
+ assert_int_equal(FMAP_SECTION_RECOVERY_MRC_CACHE_SIZE, region_device_sz(&rdev));
+
+ /* Expect error when writing to read-only area */
+ assert_int_equal(-1, rdev_writeat(&rdev, buffer,
+ region_device_offset(&rdev), sizeof(buffer)));
+
+ /* Expect error when looking for incorrect area */
+ assert_int_equal(-1, fmap_locate_area_as_rdev("NONEXISTENT_AREA", &rdev));
+ assert_int_equal(-1, fmap_locate_area_as_rdev("", &rdev));
+ assert_int_equal(-1, fmap_locate_area_as_rdev(NULL, &rdev));
+
+ /* Function fmap_locate_area_as_rdev is not tested with NULL
+ as region_device pointer as it is not allowed. */
+}
+
+static void test_fmap_locate_area_as_rdev_rw(void **state)
+{
+ struct region_device rdev;
+ size_t ro_rw_section_size = FMAP_SECTION_MISC_RW_SIZE;
+ char *buffer1 = malloc(ro_rw_section_size);
+ char *buffer2 = malloc(ro_rw_section_size);
+ char *dummy_data = malloc(ro_rw_section_size);
+
+ /* Fill buffer with dummy data */
+ for (int i = 0; i < ro_rw_section_size; ++i)
+ dummy_data[i] = '0' + i % ('9' - '0');
+
+ assert_int_not_equal(-1, fmap_locate_area_as_rdev_rw("RW_SECTION_A", &rdev));
+ assert_int_equal(FMAP_SECTION_RW_SECTION_A_START, region_device_offset(&rdev));
+ assert_int_equal(FMAP_SECTION_RW_SECTION_A_SIZE, region_device_sz(&rdev));
+
+ /* Check if locating area second time works */
+ assert_int_not_equal(-1, fmap_locate_area_as_rdev_rw("RW_SECTION_A", &rdev));
+ assert_int_equal(FMAP_SECTION_RW_SECTION_A_START, region_device_offset(&rdev));
+ assert_int_equal(FMAP_SECTION_RW_SECTION_A_SIZE, region_device_sz(&rdev));
+
+ assert_int_not_equal(-1, fmap_locate_area_as_rdev_rw("MISC_RW", &rdev));
+ assert_int_equal(FMAP_SECTION_MISC_RW_START, region_device_offset(&rdev));
+ assert_int_equal(FMAP_SECTION_MISC_RW_SIZE, region_device_sz(&rdev));
+
+
+ /* Expect error when looking for incorrect area */
+ assert_int_equal(-1, fmap_locate_area_as_rdev_rw("NONEXISTENT_AREA", &rdev));
+ assert_int_equal(-1, fmap_locate_area_as_rdev_rw("", &rdev));
+
+ /* Expect error when passing invalid references */
+ assert_int_equal(-1, fmap_locate_area_as_rdev_rw(NULL, &rdev));
+
+ /* Function fmap_locate_area_as_rdev_rw is not tested with NULL
+ as region_device pointer as it is not allowed. */
+
+ /* Test if returned section region device is writable */
+ assert_int_not_equal(-1, fmap_locate_area_as_rdev_rw("MISC_RW", &rdev));
+ assert_int_equal(ro_rw_section_size,
+ rdev_readat(&rdev, buffer1, 0, ro_rw_section_size));
+ assert_int_equal(ro_rw_section_size,
+ rdev_writeat(&rdev, dummy_data, 0, ro_rw_section_size));
+ /* Check if written data is visible and correct after locating area as RO */
+ assert_int_not_equal(-1, fmap_locate_area_as_rdev("MISC_RW", &rdev));
+ assert_int_equal(ro_rw_section_size,
+ rdev_readat(&rdev, buffer2, 0, ro_rw_section_size));
+ assert_memory_not_equal(buffer1, buffer2, ro_rw_section_size);
+ assert_memory_equal(dummy_data, buffer2, ro_rw_section_size);
+
+ free(buffer1);
+ free(buffer2);
+ free(dummy_data);
+}
+
+static void test_fmap_locate_area(void **state)
+{
+ struct region ar;
+
+ /* Try to locate named area */
+ assert_int_not_equal(-1, fmap_locate_area("COREBOOT", &ar));
+ assert_int_equal(FMAP_SECTION_COREBOOT_START, region_offset(&ar));
+ assert_int_equal(FMAP_SECTION_COREBOOT_SIZE, region_sz(&ar));
+
+ /* Check if locating area second time works */
+ assert_int_not_equal(-1, fmap_locate_area("COREBOOT", &ar));
+ assert_int_equal(FMAP_SECTION_COREBOOT_START, region_offset(&ar));
+ assert_int_equal(FMAP_SECTION_COREBOOT_SIZE, region_sz(&ar));
+
+ /* Look for another area */
+ assert_int_not_equal(-1, fmap_locate_area("GBB", &ar));
+ assert_int_equal(FMAP_SECTION_GBB_START, region_offset(&ar));
+ assert_int_equal(FMAP_SECTION_GBB_SIZE, region_sz(&ar));
+
+ /* Expect error when looking for incorrect area */
+ assert_int_equal(-1, fmap_locate_area("NONEXISTENT_AREA", &ar));
+ assert_int_equal(-1, fmap_locate_area("", &ar));
+ assert_int_equal(-1, fmap_locate_area(NULL, &ar));
+
+ /* Expect error when passing invalid region pointer */
+ assert_int_equal(-1, fmap_locate_area("SHARED_DATA", NULL));
+}
+
+static void test_fmap_find_region_name(void **state)
+{
+ (void)state;
+ struct region ar;
+ char found_area_name[FMAP_STRLEN] = "";
+ const char *area_name = "RW_PRESERVE";
+
+ /* Find area by name */
+ assert_int_not_equal(-1, fmap_locate_area(area_name, &ar));
+
+ /* Find name of previously located region */
+ assert_int_not_equal(-1, fmap_find_region_name(&ar, found_area_name));
+ assert_string_equal(area_name, found_area_name);
+
+ /* Expect error when passing invalid buffer */
+ assert_int_equal(-1, fmap_find_region_name(&ar, NULL));
+
+ /* Expect error when passing invalid region pointer */
+ assert_int_equal(-1, fmap_find_region_name(NULL, found_area_name));
+
+ /* Try to find area outside of flash region */
+ ar.offset = FMAP_SECTION_FLASH_START + FMAP_SECTION_FLASH_SIZE + 0x100;
+ ar.size = 0x1000;
+ assert_int_equal(-1, fmap_find_region_name(&ar, found_area_name));
+
+ /* Try to find area with correct offset and incorrect size */
+ ar.offset = FMAP_SECTION_COREBOOT_START;
+ ar.size = FMAP_SECTION_COREBOOT_SIZE / 4;
+ assert_int_equal(-1, fmap_find_region_name(&ar, found_area_name));
+
+ /* Try to find area with correct size and incorrect offset */
+ ar.offset = FMAP_SECTION_GBB_START - 0x100;
+ ar.size = FMAP_SECTION_GBB_START;
+ assert_int_equal(-1, fmap_find_region_name(&ar, found_area_name));
+
+ /* Try to find area with correct offset overlapping with another area */
+ ar.offset = FMAP_SECTION_MISC_RW_START;
+ ar.size = FMAP_SECTION_MISC_RW_START + 0x1000;
+ assert_int_equal(-1, fmap_find_region_name(&ar, found_area_name));
+}
+
+static void test_fmap_read_area(void **state)
+{
+ const unsigned int section_size = FMAP_SECTION_RW_SECTION_A_SIZE;
+ const unsigned int section_start = FMAP_SECTION_RW_SECTION_A_START;
+ char *buffer = malloc(section_size);
+
+ /* Find and read area data. Compare with memory device simulating flash. */
+ assert_int_equal(section_size, fmap_read_area("RW_SECTION_A", buffer, section_size));
+ assert_memory_equal(flash_buffer + section_start, buffer, section_size);
+
+ /* Expect error when reading incorrect area */
+ assert_int_equal(-1, fmap_read_area("NONEXISTENT_SECTION", buffer, section_size));
+ assert_int_equal(-1, fmap_read_area("", buffer, section_size));
+ assert_int_equal(-1, fmap_read_area(NULL, buffer, section_size));
+
+ /* Function fmap_read_area is not tested with NULL
+ as output buffer pointer as it is not allowed. */
+
+ free(buffer);
+}
+
+static void test_fmap_overwrite_area(void **state)
+{
+ const char *section_name = "FW_MAIN_A";
+ const unsigned int section_size = FMAP_SECTION_FW_MAIN_A_SIZE;
+ char *buffer1 = malloc(section_size);
+ char *buffer2 = malloc(section_size);
+ char *new_data = malloc(section_size / 2);
+ char *zero_buffer = malloc(section_size / 2);
+ memset(zero_buffer, 0, section_size / 2);
+ memset(new_data, 0x42, section_size / 2);
+
+ /* Save buffer for future comparisons */
+ assert_int_equal(section_size, fmap_read_area(section_name, buffer1, section_size));
+
+ /* Overwrite part of section. */
+ assert_int_equal(section_size / 2,
+ fmap_overwrite_area(section_name, new_data, section_size / 2));
+
+ /* Read and check if memory has changed as expected */
+ assert_int_equal(section_size, fmap_read_area(section_name, buffer2, section_size));
+ assert_memory_not_equal(buffer1, buffer2, section_size);
+ /* Check if requested section area was overwritten properly */
+ assert_memory_equal(buffer2, new_data, section_size / 2);
+ /* Check if rest of section was zero-filled */
+ assert_memory_equal(buffer2 + (section_size / 2), zero_buffer, section_size / 2);
+
+ /* Expect error when overwriting incorrect section */
+ assert_int_equal(-1, fmap_overwrite_area("NONEXISTENT_SECTION",
+ new_data, section_size / 2));
+ assert_int_equal(-1, fmap_overwrite_area(NULL, new_data, section_size / 2));
+
+ /* Function fmap_overwrite_area is not tested with NULL
+ as input buffer pointer as it is not allowed. */
+
+ free(buffer1);
+ free(buffer2);
+ free(new_data);
+ free(zero_buffer);
+}
+
+int main(void)
+{
+ const struct CMUnitTest tests[] = {
+ cmocka_unit_test_setup_teardown(test_fmap_locate_area_as_rdev,
+ setup_fmap, teardown_fmap),
+ cmocka_unit_test_setup_teardown(test_fmap_locate_area_as_rdev_rw,
+ setup_fmap, teardown_fmap),
+ cmocka_unit_test_setup_teardown(test_fmap_locate_area,
+ setup_fmap, teardown_fmap),
+ cmocka_unit_test_setup_teardown(test_fmap_find_region_name,
+ setup_fmap, teardown_fmap),
+ cmocka_unit_test_setup_teardown(test_fmap_read_area,
+ setup_fmap, teardown_fmap),
+ cmocka_unit_test_setup_teardown(test_fmap_overwrite_area,
+ setup_fmap, teardown_fmap),
+ };
+
+ return cmocka_run_group_tests(tests, NULL, NULL);
+}
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