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https://github.com/brain-hackers/u-boot-brain
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400175b0a7
When writing tests to check the output from commands it is useful to be able to check the output line by line using an assertion. Add helper macros to support this and to check that there is no unexpected trailing data. Also some commands produce a dump using print_buffer(). Add a way to check that the correct number of bytes are dumped (ignoring the actual contents). Signed-off-by: Simon Glass <sjg@chromium.org>
234 lines
6.9 KiB
C
234 lines
6.9 KiB
C
/* SPDX-License-Identifier: GPL-2.0+ */
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/*
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* Simple unit test library
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*
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* Copyright (c) 2013 Google, Inc
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*/
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#ifndef __TEST_UT_H
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#define __TEST_UT_H
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#include <linux/err.h>
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struct unit_test_state;
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/**
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* ut_fail() - Record failure of a unit test
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*
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* @uts: Test state
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* @fname: Filename where the error occurred
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* @line: Line number where the error occurred
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* @func: Function name where the error occurred
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* @cond: The condition that failed
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*/
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void ut_fail(struct unit_test_state *uts, const char *fname, int line,
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const char *func, const char *cond);
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/**
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* ut_failf() - Record failure of a unit test
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*
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* @uts: Test state
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* @fname: Filename where the error occurred
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* @line: Line number where the error occurred
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* @func: Function name where the error occurred
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* @cond: The condition that failed
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* @fmt: printf() format string for the error, followed by args
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*/
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void ut_failf(struct unit_test_state *uts, const char *fname, int line,
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const char *func, const char *cond, const char *fmt, ...)
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__attribute__ ((format (__printf__, 6, 7)));
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/**
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* ut_check_console_line() - Check the next console line against expectations
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*
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* This creates a string and then checks it against the next line of console
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* output obtained with console_record_readline().
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*
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* After the function returns, uts->expect_str holds the expected string and
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* uts->actual_str holds the actual string read from the console.
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*
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* @uts: Test state
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* @fmt: printf() format string for the error, followed by args
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* @return 0 if OK, other value on error
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*/
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int ut_check_console_line(struct unit_test_state *uts, const char *fmt, ...)
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__attribute__ ((format (__printf__, 2, 3)));
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/**
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* ut_check_console_end() - Check there is no more console output
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*
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* After the function returns, uts->actual_str holds the actual string read
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* from the console
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*
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* @uts: Test state
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* @return 0 if OK (console has no output), other value on error
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*/
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int ut_check_console_end(struct unit_test_state *uts);
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/**
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* ut_check_console_dump() - Check that next lines have a print_buffer() dump
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*
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* This only supports a byte dump.
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*
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* @total_bytes: Size of the expected dump in bytes`
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* @return 0 if OK (looks like a dump and the length matches), other value on
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* error
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*/
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int ut_check_console_dump(struct unit_test_state *uts, int total_bytes);
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/* Assert that a condition is non-zero */
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#define ut_assert(cond) \
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if (!(cond)) { \
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ut_fail(uts, __FILE__, __LINE__, __func__, #cond); \
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return CMD_RET_FAILURE; \
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}
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/* Assert that a condition is non-zero, with printf() string */
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#define ut_assertf(cond, fmt, args...) \
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if (!(cond)) { \
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ut_failf(uts, __FILE__, __LINE__, __func__, #cond, \
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fmt, ##args); \
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return CMD_RET_FAILURE; \
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}
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/* Assert that two int expressions are equal */
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#define ut_asserteq(expr1, expr2) { \
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unsigned int _val1 = (expr1), _val2 = (expr2); \
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\
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if (_val1 != _val2) { \
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ut_failf(uts, __FILE__, __LINE__, __func__, \
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#expr1 " == " #expr2, \
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"Expected %#x (%d), got %#x (%d)", \
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_val1, _val1, _val2, _val2); \
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return CMD_RET_FAILURE; \
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} \
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}
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/* Assert that two string expressions are equal */
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#define ut_asserteq_str(expr1, expr2) { \
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const char *_val1 = (expr1), *_val2 = (expr2); \
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\
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if (strcmp(_val1, _val2)) { \
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ut_failf(uts, __FILE__, __LINE__, __func__, \
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#expr1 " = " #expr2, \
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"Expected \"%s\", got \"%s\"", _val1, _val2); \
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return CMD_RET_FAILURE; \
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} \
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}
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/* Assert that two memory areas are equal */
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#define ut_asserteq_mem(expr1, expr2, len) { \
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const u8 *_val1 = (u8 *)(expr1), *_val2 = (u8 *)(expr2); \
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const uint __len = len; \
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\
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if (memcmp(_val1, _val2, __len)) { \
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char __buf1[64 + 1] = "\0"; \
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char __buf2[64 + 1] = "\0"; \
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bin2hex(__buf1, _val1, min(__len, (uint)32)); \
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bin2hex(__buf2, _val2, min(__len, (uint)32)); \
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ut_failf(uts, __FILE__, __LINE__, __func__, \
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#expr1 " = " #expr2, \
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"Expected \"%s\", got \"%s\"", \
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__buf1, __buf2); \
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return CMD_RET_FAILURE; \
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} \
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}
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/* Assert that two pointers are equal */
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#define ut_asserteq_ptr(expr1, expr2) { \
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const void *_val1 = (expr1), *_val2 = (expr2); \
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\
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if (_val1 != _val2) { \
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ut_failf(uts, __FILE__, __LINE__, __func__, \
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#expr1 " = " #expr2, \
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"Expected %p, got %p", _val1, _val2); \
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return CMD_RET_FAILURE; \
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} \
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}
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/* Assert that a pointer is NULL */
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#define ut_assertnull(expr) { \
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const void *_val = (expr); \
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\
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if (_val) { \
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ut_failf(uts, __FILE__, __LINE__, __func__, \
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#expr " != NULL", \
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"Expected NULL, got %p", _val); \
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return CMD_RET_FAILURE; \
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} \
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}
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/* Assert that a pointer is not NULL */
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#define ut_assertnonnull(expr) { \
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const void *_val = (expr); \
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\
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if (!_val) { \
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ut_failf(uts, __FILE__, __LINE__, __func__, \
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#expr " = NULL", \
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"Expected non-null, got NULL"); \
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return CMD_RET_FAILURE; \
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} \
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}
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/* Assert that a pointer is not an error pointer */
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#define ut_assertok_ptr(expr) { \
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const void *_val = (expr); \
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\
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if (IS_ERR(_val)) { \
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ut_failf(uts, __FILE__, __LINE__, __func__, \
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#expr " = NULL", \
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"Expected pointer, got error %ld", \
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PTR_ERR(_val)); \
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return CMD_RET_FAILURE; \
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} \
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}
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/* Assert that an operation succeeds (returns 0) */
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#define ut_assertok(cond) ut_asserteq(0, cond)
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/* Assert that the next console output line matches */
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#define ut_assert_nextline(fmt, args...) \
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if (ut_check_console_line(uts, fmt, ##args)) { \
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ut_failf(uts, __FILE__, __LINE__, __func__, \
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"console", "\nExpected '%s',\n got '%s'", \
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uts->expect_str, uts->actual_str); \
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return CMD_RET_FAILURE; \
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} \
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/* Assert that there is no more console output */
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#define ut_assert_console_end() \
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if (ut_check_console_end(uts)) { \
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ut_failf(uts, __FILE__, __LINE__, __func__, \
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"console", "Expected no more output, got '%s'",\
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uts->actual_str); \
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return CMD_RET_FAILURE; \
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} \
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/* Assert that the next lines are print_buffer() dump at an address */
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#define ut_assert_nextlines_are_dump(total_bytes) \
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if (ut_check_console_dump(uts, total_bytes)) { \
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ut_failf(uts, __FILE__, __LINE__, __func__, \
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"console", \
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"Expected dump of length %x bytes, got '%s'", \
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total_bytes, uts->actual_str); \
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return CMD_RET_FAILURE; \
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} \
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/**
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* ut_check_free() - Return the number of bytes free in the malloc() pool
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*
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* @return bytes free
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*/
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ulong ut_check_free(void);
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/**
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* ut_check_delta() - Return the number of bytes allocated/freed
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*
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* @last: Last value from ut_check_free
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* @return free memory delta from @last; positive means more memory has been
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* allocated, negative means less has been allocated (i.e. some is freed)
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*/
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long ut_check_delta(ulong last);
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#endif
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