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u-boot-megous/test/cmd/setexpr.c
Roland Gaudig 62db08982c test: cmd: setexpr: add format string tests 
Add test cases for the setexpr format string operator.

Signed-off-by: Roland Gaudig <roland.gaudig@weidmueller.com>
[trini: Enable on sandbox]
Signed-off-by: Tom Rini <trini@konsulko.com>
2021-07-27 17:56:13 -04:00

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// SPDX-License-Identifier: GPL-2.0+
/*
* Tests for setexpr command
*
* Copyright 2020 Google LLC
* Written by Simon Glass <sjg@chromium.org>
*/
#include <common.h>
#include <console.h>
#include <mapmem.h>
#include <dm/test.h>
#include <test/suites.h>
#include <test/ut.h>
#define BUF_SIZE 0x100
/* Declare a new setexpr test */
#define SETEXPR_TEST(_name, _flags) UNIT_TEST(_name, _flags, setexpr_test)
/* Test 'setexpr' command with simply setting integers */
static int setexpr_test_int(struct unit_test_state *uts)
{
u8 *buf;
buf = map_sysmem(0, BUF_SIZE);
memset(buf, '\xff', BUF_SIZE);
/* byte */
buf[0x0] = 0x12;
ut_assertok(run_command("setexpr.b fred 0", 0));
ut_asserteq_str("0", env_get("fred"));
ut_assertok(run_command("setexpr.b fred *0", 0));
ut_asserteq_str("12", env_get("fred"));
/* 16-bit */
*(short *)buf = 0x2345;
ut_assertok(run_command("setexpr.w fred 0", 0));
ut_asserteq_str("0", env_get("fred"));
ut_assertok(run_command("setexpr.w fred *0", 0));
ut_asserteq_str("2345", env_get("fred"));
/* 32-bit */
*(u32 *)buf = 0x3456789a;
ut_assertok(run_command("setexpr.l fred 0", 0));
ut_asserteq_str("0", env_get("fred"));
ut_assertok(run_command("setexpr.l fred *0", 0));
ut_asserteq_str("3456789a", env_get("fred"));
/* 64-bit */
*(u64 *)buf = 0x456789abcdef0123;
ut_assertok(run_command("setexpr.q fred 0", 0));
ut_asserteq_str("0", env_get("fred"));
ut_assertok(run_command("setexpr.q fred *0", 0));
ut_asserteq_str("456789abcdef0123", env_get("fred"));
/* default */
ut_assertok(run_command("setexpr fred 0", 0));
ut_asserteq_str("0", env_get("fred"));
ut_assertok(run_command("setexpr fred *0", 0));
ut_asserteq_str("cdef0123", env_get("fred"));
unmap_sysmem(buf);
return 0;
}
SETEXPR_TEST(setexpr_test_int, UT_TESTF_CONSOLE_REC);
/* Test 'setexpr' command with + operator */
static int setexpr_test_plus(struct unit_test_state *uts)
{
char *buf;
buf = map_sysmem(0, BUF_SIZE);
memset(buf, '\xff', BUF_SIZE);
/* byte */
buf[0x0] = 0x12;
buf[0x10] = 0x34;
ut_assertok(run_command("setexpr.b fred *0 + *10", 0));
ut_asserteq_str("46", env_get("fred"));
/* 16-bit */
*(short *)buf = 0x2345;
*(short *)(buf + 0x10) = 0xf012;
ut_assertok(run_command("setexpr.w fred *0 + *10", 0));
ut_asserteq_str("11357", env_get("fred"));
/* 32-bit */
*(u32 *)buf = 0x3456789a;
*(u32 *)(buf + 0x10) = 0xc3384235;
ut_assertok(run_command("setexpr.l fred *0 + *10", 0));
ut_asserteq_str("f78ebacf", env_get("fred"));
/* 64-bit */
*(u64 *)buf = 0x456789abcdef0123;
*(u64 *)(buf + 0x10) = 0x4987328372849283;
ut_assertok(run_command("setexpr.q fred *0 + *10", 0));
ut_asserteq_str("8eeebc2f407393a6", env_get("fred"));
/* default */
ut_assertok(run_command("setexpr fred *0 + *10", 0));
ut_asserteq_str("1407393a6", env_get("fred"));
unmap_sysmem(buf);
return 0;
}
SETEXPR_TEST(setexpr_test_plus, UT_TESTF_CONSOLE_REC);
/* Test 'setexpr' command with other operators */
static int setexpr_test_oper(struct unit_test_state *uts)
{
char *buf;
buf = map_sysmem(0, BUF_SIZE);
memset(buf, '\xff', BUF_SIZE);
*(u32 *)buf = 0x1234;
*(u32 *)(buf + 0x10) = 0x560000;
/* Quote | to avoid confusing hush */
ut_assertok(run_command("setexpr fred *0 \"|\" *10", 0));
ut_asserteq_str("561234", env_get("fred"));
*(u32 *)buf = 0x561200;
*(u32 *)(buf + 0x10) = 0x1234;
/* Quote & to avoid confusing hush */
ut_assertok(run_command("setexpr.l fred *0 \"&\" *10", 0));
ut_asserteq_str("1200", env_get("fred"));
ut_assertok(run_command("setexpr.l fred *0 ^ *10", 0));
ut_asserteq_str("560034", env_get("fred"));
ut_assertok(run_command("setexpr.l fred *0 - *10", 0));
ut_asserteq_str("55ffcc", env_get("fred"));
ut_assertok(run_command("setexpr.l fred *0 * *10", 0));
ut_asserteq_str("61ebfa800", env_get("fred"));
ut_assertok(run_command("setexpr.l fred *0 / *10", 0));
ut_asserteq_str("4ba", env_get("fred"));
ut_assertok(run_command("setexpr.l fred *0 % *10", 0));
ut_asserteq_str("838", env_get("fred"));
unmap_sysmem(buf);
return 0;
}
SETEXPR_TEST(setexpr_test_oper, UT_TESTF_CONSOLE_REC);
/* Test 'setexpr' command with regex */
static int setexpr_test_regex(struct unit_test_state *uts)
{
char *buf, *val;
buf = map_sysmem(0, BUF_SIZE);
/* Single substitution */
ut_assertok(run_command("setenv fred 'this is a test'", 0));
ut_assertok(run_command("setexpr fred sub is us", 0));
val = env_get("fred");
ut_asserteq_str("thus is a test", val);
/* Global substitution */
ut_assertok(run_command("setenv fred 'this is a test'", 0));
ut_assertok(run_command("setexpr fred gsub is us", 0));
val = env_get("fred");
ut_asserteq_str("thus us a test", val);
/* Global substitution */
ut_assertok(run_command("setenv fred 'this is a test'", 0));
ut_assertok(run_command("setenv mary 'this is a test'", 0));
ut_assertok(run_command("setexpr fred gsub is us \"${mary}\"", 0));
val = env_get("fred");
ut_asserteq_str("thus us a test", val);
val = env_get("mary");
ut_asserteq_str("this is a test", val);
unmap_sysmem(buf);
return 0;
}
SETEXPR_TEST(setexpr_test_regex, UT_TESTF_CONSOLE_REC);
/* Test 'setexpr' command with regex replacement that expands the string */
static int setexpr_test_regex_inc(struct unit_test_state *uts)
{
char *buf, *val;
buf = map_sysmem(0, BUF_SIZE);
ut_assertok(run_command("setenv fred 'this is a test'", 0));
ut_assertok(run_command("setexpr fred gsub is much_longer_string", 0));
val = env_get("fred");
ut_asserteq_str("thmuch_longer_string much_longer_string a test", val);
unmap_sysmem(buf);
return 0;
}
SETEXPR_TEST(setexpr_test_regex_inc, UT_TESTF_CONSOLE_REC);
/* Test setexpr_regex_sub() directly to check buffer usage */
static int setexpr_test_sub(struct unit_test_state *uts)
{
char *buf, *nbuf;
int i;
buf = map_sysmem(0, BUF_SIZE);
nbuf = map_sysmem(0x1000, BUF_SIZE);
/* Add a pattern so we can check the buffer limits */
memset(buf, '\xff', BUF_SIZE);
memset(nbuf, '\xff', BUF_SIZE);
for (i = BUF_SIZE; i < 0x1000; i++) {
buf[i] = i & 0xff;
nbuf[i] = i & 0xff;
}
strcpy(buf, "this is a test");
/*
* This is a regression test, since a bug was found in the use of
* memmove() in setexpr
*/
ut_assertok(setexpr_regex_sub(buf, BUF_SIZE, nbuf, BUF_SIZE, "is",
"us it is longer", true));
ut_asserteq_str("thus it is longer us it is longer a test", buf);
for (i = BUF_SIZE; i < 0x1000; i++) {
ut_assertf(buf[i] == (char)i,
"buf byte at %x should be %02x, got %02x)\n",
i, i & 0xff, (u8)buf[i]);
ut_assertf(nbuf[i] == (char)i,
"nbuf byte at %x should be %02x, got %02x)\n",
i, i & 0xff, (u8)nbuf[i]);
}
unmap_sysmem(buf);
return 0;
}
SETEXPR_TEST(setexpr_test_sub, UT_TESTF_CONSOLE_REC);
/* Test setexpr_regex_sub() with back references */
static int setexpr_test_backref(struct unit_test_state *uts)
{
char *buf, *nbuf;
int i;
buf = map_sysmem(0, BUF_SIZE);
nbuf = map_sysmem(0x1000, BUF_SIZE);
/* Add a pattern so we can check the buffer limits */
memset(buf, '\xff', BUF_SIZE);
memset(nbuf, '\xff', BUF_SIZE);
for (i = BUF_SIZE; i < 0x1000; i++) {
buf[i] = i & 0xff;
nbuf[i] = i & 0xff;
}
strcpy(buf, "this is surely a test is it? yes this is indeed a test");
/*
* This is a regression test, since a bug was found in the use of
* memmove() in setexpr
*/
ut_assertok(setexpr_regex_sub(buf, BUF_SIZE, nbuf, BUF_SIZE,
"(this) (is) (surely|indeed)",
"us \\1 \\2 \\3!", true));
ut_asserteq_str("us this is surely! a test is it? yes us this is indeed! a test",
buf);
for (i = BUF_SIZE; i < 0x1000; i++) {
ut_assertf(buf[i] == (char)i,
"buf byte at %x should be %02x, got %02x)\n",
i, i & 0xff, (u8)buf[i]);
ut_assertf(nbuf[i] == (char)i,
"nbuf byte at %x should be %02x, got %02x)\n",
i, i & 0xff, (u8)nbuf[i]);
}
unmap_sysmem(buf);
return 0;
}
SETEXPR_TEST(setexpr_test_backref, UT_TESTF_CONSOLE_REC);
/* Test 'setexpr' command with setting strings */
static int setexpr_test_str(struct unit_test_state *uts)
{
ulong start_mem;
char *buf;
buf = map_sysmem(0, BUF_SIZE);
memset(buf, '\xff', BUF_SIZE);
/*
* Set 'fred' to the same length as we expect to get below, to avoid a
* new allocation in 'setexpr'. That way we can check for memory leaks.
*/
ut_assertok(env_set("fred", "x"));
start_mem = ut_check_free();
strcpy(buf, "hello");
ut_asserteq(1, run_command("setexpr.s fred 0", 0));
ut_assertok(ut_check_delta(start_mem));
ut_assertok(env_set("fred", "12345"));
start_mem = ut_check_free();
ut_assertok(run_command("setexpr.s fred *0", 0));
ut_asserteq_str("hello", env_get("fred"));
ut_assertok(ut_check_delta(start_mem));
unmap_sysmem(buf);
return 0;
}
SETEXPR_TEST(setexpr_test_str, UT_TESTF_CONSOLE_REC);
/* Test 'setexpr' command with concatenating strings */
static int setexpr_test_str_oper(struct unit_test_state *uts)
{
ulong start_mem;
char *buf;
buf = map_sysmem(0, BUF_SIZE);
memset(buf, '\xff', BUF_SIZE);
strcpy(buf, "hello");
strcpy(buf + 0x10, " there");
ut_assertok(console_record_reset_enable());
start_mem = ut_check_free();
ut_asserteq(1, run_command("setexpr.s fred *0 * *10", 0));
ut_assertok(ut_check_delta(start_mem));
ut_assert_nextline("invalid op");
ut_assert_console_end();
/*
* Set 'fred' to the same length as we expect to get below, to avoid a
* new allocation in 'setexpr'. That way we can check for memory leaks.
*/
ut_assertok(env_set("fred", "12345012345"));
start_mem = ut_check_free();
ut_assertok(run_command("setexpr.s fred *0 + *10", 0));
ut_asserteq_str("hello there", env_get("fred"));
/*
* This check does not work with sandbox_flattree, apparently due to
* memory allocations in env_set().
*
* The truetype console produces lots of memory allocations even though
* the LCD display is not visible. But even without these, it does not
* work.
*
* A better test would be for dlmalloc to record the allocs and frees
* for a particular caller, but that is not supported.
*
* For now, drop this test.
*
* ut_assertok(ut_check_delta(start_mem));
*/
unmap_sysmem(buf);
return 0;
}
SETEXPR_TEST(setexpr_test_str_oper, UT_TESTF_CONSOLE_REC);
/* Test 'setexpr' command with a string that is too long */
static int setexpr_test_str_long(struct unit_test_state *uts)
{
const int size = 128 << 10; /* setexpr strings are a max of 64KB */
char *buf, *val;
buf = map_sysmem(0, size);
memset(buf, 'a', size);
/* String should be truncated to 64KB */
ut_assertok(run_command("setexpr.s fred *0", 0));
val = env_get("fred");
ut_asserteq(64 << 10, strlen(val));
unmap_sysmem(buf);
return 0;
}
SETEXPR_TEST(setexpr_test_str_long, UT_TESTF_CONSOLE_REC);
#ifdef CONFIG_CMD_SETEXPR_FMT
/* Test 'setexpr' command with simply setting integers */
static int setexpr_test_fmt(struct unit_test_state *uts)
{
u8 *buf;
buf = map_sysmem(0, BUF_SIZE);
memset(buf, '\xff', BUF_SIZE);
/* Test decimal conversion */
ut_assertok(run_command("setexpr fred fmt %d 0xff", 0));
ut_asserteq_str("255", env_get("fred"));
/* Test hexadecimal conversion with 0x prefix and 4 digits */
ut_assertok(run_command("setexpr fred fmt 0x%04x 257", 0));
ut_asserteq_str("0x0257", env_get("fred"));
/* Test octal conversion with % prefix */
ut_assertok(run_command("setexpr fred fmt %%%o 8", 0));
ut_asserteq_str("%10", env_get("fred"));
/* Test argument surrounded by %% */
ut_assertok(run_command("setexpr fred fmt %%%x%% 0xff", 0));
ut_asserteq_str("%ff%", env_get("fred"));
/* Test escape sequence */
ut_assertok(run_command("setexpr fred fmt \"hello\\040world\"", 0));
ut_asserteq_str("hello world", env_get("fred"));
/* Test %b with string containing octal escape sequence */
ut_assertok(run_command("setexpr fred fmt oh%bno \137", 0));
ut_asserteq_str("oh_no", env_get("fred"));
/* Test %b with string containing \c escape sequence */
ut_assertok(run_command("setexpr fred fmt hello%bworld \"\\c\"", 0));
ut_asserteq_str("hello", env_get("fred"));
/* Test multiple arguments referencing environment varialbes */
ut_assertok(run_command("setenv a eff", 0));
ut_assertok(run_command("setenv b hello", 0));
ut_assertok(run_command("setenv c 0x63", 0));
ut_assertok(run_command("setenv d world", 0));
ut_assertok(run_command("setexpr fred fmt \"0x%08x-%s-%d-%s\" $a $b $c $d", 0));
ut_asserteq_str("0x00000eff-hello-99-world", env_get("fred"));
/* Test with two format specifiers, but only one argument */
ut_assertok(run_command("setexpr fred fmt %d_%x 100", 0));
ut_asserteq_str("256_0", env_get("fred"));
/* Test maximum string length */
ut_assertok(run_command("setexpr fred fmt \"%0127d\" 7b", 0));
ut_asserteq_str("0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000123", env_get("fred"));
/* Test maximum unsigned integer size */
ut_assertok(run_command("setexpr fred fmt %u ffffffffffffffff", 0));
ut_asserteq_str("18446744073709551615", env_get("fred"));
/* Test maximum positive integer size */
ut_assertok(run_command("setexpr fred fmt %d 7fffffffffffffff", 0));
ut_asserteq_str("9223372036854775807", env_get("fred"));
/* Test maximum negative integer size */
ut_assertok(run_command("setexpr fred fmt %d 8000000000000000", 0));
ut_asserteq_str("-9223372036854775808", env_get("fred"));
/* Test minimum negative integer size */
ut_assertok(run_command("setexpr fred fmt %d ffffffffffffffff", 0));
ut_asserteq_str("-1", env_get("fred"));
/* Test signed value with + sign */
ut_assertok(run_command("setexpr fred fmt %d +5", 0));
ut_asserteq_str("5", env_get("fred"));
/* Test signed value with - sign */
ut_assertok(run_command("setexpr fred fmt %d -4", 0));
ut_asserteq_str("-4", env_get("fred"));
/* Test unsigned value with + sign */
ut_assertok(run_command("setexpr fred fmt %u +3", 0));
ut_asserteq_str("3", env_get("fred"));
/* Test unsigned value with - sign */
ut_assertok(run_command("setexpr fred fmt %x -2", 0));
ut_asserteq_str("fffffffffffffffe", env_get("fred"));
/* Error test with missing format specifier */
ut_asserteq(1, run_command("setexpr fred fmd hello 0xff", 0));
/* Error test with invalid format type */
ut_asserteq(1, run_command("setexpr fred fmt %a 0xff", 0));
/* Error test with incomplete format specifier */
ut_asserteq(1, run_command("setexpr fred fmt hello% bf", 0));
/* Error exceeding maximum string length */
ut_asserteq(1, run_command("setexpr fred fmt \"%0128d\" 456", 0));
unmap_sysmem(buf);
return 0;
}
SETEXPR_TEST(setexpr_test_fmt, UT_TESTF_CONSOLE_REC);
#endif
int do_ut_setexpr(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[])
{
struct unit_test *tests = UNIT_TEST_SUITE_START(setexpr_test);
const int n_ents = UNIT_TEST_SUITE_COUNT(setexpr_test);
return cmd_ut_category("cmd_setexpr", "setexpr_test_", tests, n_ents,
argc, argv);
}
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