test/command_ut.c

   1 /*
   2  * Copyright (c) 2012, The Chromium Authors
   3  *
   4  * SPDX-License-Identifier:     GPL-2.0+
   5  */
   6
   7 #define DEBUG
   8
   9 #include <common.h>
  10 #ifdef CONFIG_SANDBOX
  11 #include <os.h>
  12 #endif
  13
  14 static const char test_cmd[] = "setenv list 1\n setenv list ${list}2; "
  15                 "setenv list ${list}3\0"
  16                 "setenv list ${list}4";
  17
  18 static int do_ut_cmd(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
  19 {
  20         printf("%s: Testing commands\n", __func__);
  21         run_command("env default -f -a", 0);
  22
  23         /* make sure that compound statements work */
  24 #ifdef CONFIG_SYS_HUSH_PARSER
  25         run_command("if test -n ${single} ; then setenv check 1; fi", 0);
  26         assert(!strcmp("1", getenv("check")));
  27         run_command("setenv check", 0);
  28 #endif
  29
  30         /* commands separated by ; */
  31         run_command_list("setenv list 1; setenv list ${list}1", -1, 0);
  32         assert(!strcmp("11", getenv("list")));
  33
  34         /* commands separated by \n */
  35         run_command_list("setenv list 1\n setenv list ${list}1", -1, 0);
  36         assert(!strcmp("11", getenv("list")));
  37
  38         /* command followed by \n and nothing else */
  39         run_command_list("setenv list 1${list}\n", -1, 0);
  40         assert(!strcmp("111", getenv("list")));
  41
  42         /* three commands in a row */
  43         run_command_list("setenv list 1\n setenv list ${list}2; "
  44                 "setenv list ${list}3", -1, 0);
  45         assert(!strcmp("123", getenv("list")));
  46
  47         /* a command string with \0 in it. Stuff after \0 should be ignored */
  48         run_command("setenv list", 0);
  49         run_command_list(test_cmd, sizeof(test_cmd), 0);
  50         assert(!strcmp("123", getenv("list")));
  51
  52         /*
  53          * a command list where we limit execution to only the first command
  54          * using the length parameter.
  55          */
  56         run_command_list("setenv list 1\n setenv list ${list}2; "
  57                 "setenv list ${list}3", strlen("setenv list 1"), 0);
  58         assert(!strcmp("1", getenv("list")));
  59
  60         assert(run_command("false", 0) == 1);
  61         assert(run_command("echo", 0) == 0);
  62         assert(run_command_list("false", -1, 0) == 1);
  63         assert(run_command_list("echo", -1, 0) == 0);
  64
  65         run_command("setenv foo 'setenv monty 1; setenv python 2'", 0);
  66         run_command("run foo", 0);
  67         assert(getenv("monty") != NULL);
  68         assert(!strcmp("1", getenv("monty")));
  69         assert(getenv("python") != NULL);
  70         assert(!strcmp("2", getenv("python")));
  71
  72 #ifdef CONFIG_SYS_HUSH_PARSER
  73         run_command("setenv foo 'setenv black 1\nsetenv adder 2'", 0);
  74         run_command("run foo", 0);
  75         assert(getenv("black") != NULL);
  76         assert(!strcmp("1", getenv("black")));
  77         assert(getenv("adder") != NULL);
  78         assert(!strcmp("2", getenv("adder")));
  79
  80         /* Test the 'test' command */
  81
  82 #define HUSH_TEST(name, expr, expected_result) \
  83         run_command("if test " expr " ; then " \
  84                         "setenv " #name "_" #expected_result " y; else " \
  85                         "setenv " #name "_" #expected_result " n; fi", 0); \
  86         assert(!strcmp(#expected_result, getenv(#name "_" #expected_result))); \
  87         setenv(#name "_" #expected_result, NULL);
  88
  89         /* Basic operators */
  90         HUSH_TEST(streq, "aaa = aaa", y);
  91         HUSH_TEST(streq, "aaa = bbb", n);
  92
  93         HUSH_TEST(strneq, "aaa != bbb", y);
  94         HUSH_TEST(strneq, "aaa != aaa", n);
  95
  96         HUSH_TEST(strlt, "aaa < bbb", y);
  97         HUSH_TEST(strlt, "bbb < aaa", n);
  98
  99         HUSH_TEST(strgt, "bbb > aaa", y);
 100         HUSH_TEST(strgt, "aaa > bbb", n);
 101
 102         HUSH_TEST(eq, "123 -eq 123", y);
 103         HUSH_TEST(eq, "123 -eq 456", n);
 104
 105         HUSH_TEST(ne, "123 -ne 456", y);
 106         HUSH_TEST(ne, "123 -ne 123", n);
 107
 108         HUSH_TEST(lt, "123 -lt 456", y);
 109         HUSH_TEST(lt_eq, "123 -lt 123", n);
 110         HUSH_TEST(lt, "456 -lt 123", n);
 111
 112         HUSH_TEST(le, "123 -le 456", y);
 113         HUSH_TEST(le_eq, "123 -le 123", y);
 114         HUSH_TEST(le, "456 -le 123", n);
 115
 116         HUSH_TEST(gt, "456 -gt 123", y);
 117         HUSH_TEST(gt_eq, "123 -gt 123", n);
 118         HUSH_TEST(gt, "123 -gt 456", n);
 119
 120         HUSH_TEST(ge, "456 -ge 123", y);
 121         HUSH_TEST(ge_eq, "123 -ge 123", y);
 122         HUSH_TEST(ge, "123 -ge 456", n);
 123
 124         HUSH_TEST(z, "-z \"\"", y);
 125         HUSH_TEST(z, "-z \"aaa\"", n);
 126
 127         HUSH_TEST(n, "-n \"aaa\"", y);
 128         HUSH_TEST(n, "-n \"\"", n);
 129
 130         /* Inversion of simple tests */
 131         HUSH_TEST(streq_inv, "! aaa = aaa", n);
 132         HUSH_TEST(streq_inv, "! aaa = bbb", y);
 133
 134         HUSH_TEST(streq_inv_inv, "! ! aaa = aaa", y);
 135         HUSH_TEST(streq_inv_inv, "! ! aaa = bbb", n);
 136
 137         /* Binary operators */
 138         HUSH_TEST(or_0_0, "aaa != aaa -o bbb != bbb", n);
 139         HUSH_TEST(or_0_1, "aaa != aaa -o bbb = bbb", y);
 140         HUSH_TEST(or_1_0, "aaa = aaa -o bbb != bbb", y);
 141         HUSH_TEST(or_1_1, "aaa = aaa -o bbb = bbb", y);
 142
 143         HUSH_TEST(and_0_0, "aaa != aaa -a bbb != bbb", n);
 144         HUSH_TEST(and_0_1, "aaa != aaa -a bbb = bbb", n);
 145         HUSH_TEST(and_1_0, "aaa = aaa -a bbb != bbb", n);
 146         HUSH_TEST(and_1_1, "aaa = aaa -a bbb = bbb", y);
 147
 148         /* Inversion within binary operators */
 149         HUSH_TEST(or_0_0_inv, "! aaa != aaa -o ! bbb != bbb", y);
 150         HUSH_TEST(or_0_1_inv, "! aaa != aaa -o ! bbb = bbb", y);
 151         HUSH_TEST(or_1_0_inv, "! aaa = aaa -o ! bbb != bbb", y);
 152         HUSH_TEST(or_1_1_inv, "! aaa = aaa -o ! bbb = bbb", n);
 153
 154         HUSH_TEST(or_0_0_inv_inv, "! ! aaa != aaa -o ! ! bbb != bbb", n);
 155         HUSH_TEST(or_0_1_inv_inv, "! ! aaa != aaa -o ! ! bbb = bbb", y);
 156         HUSH_TEST(or_1_0_inv_inv, "! ! aaa = aaa -o ! ! bbb != bbb", y);
 157         HUSH_TEST(or_1_1_inv_inv, "! ! aaa = aaa -o ! ! bbb = bbb", y);
 158
 159         setenv("ut_var_nonexistent", NULL);
 160         setenv("ut_var_exists", "1");
 161         HUSH_TEST(z_varexp_quoted, "-z \"$ut_var_nonexistent\"", y);
 162         HUSH_TEST(z_varexp_quoted, "-z \"$ut_var_exists\"", n);
 163         setenv("ut_var_exists", NULL);
 164
 165         run_command("setenv ut_var_space \" \"", 0);
 166         assert(!strcmp(getenv("ut_var_space"), " "));
 167         run_command("setenv ut_var_test $ut_var_space", 0);
 168         assert(!getenv("ut_var_test"));
 169         run_command("setenv ut_var_test \"$ut_var_space\"", 0);
 170         assert(!strcmp(getenv("ut_var_test"), " "));
 171         run_command("setenv ut_var_test \" 1${ut_var_space}${ut_var_space} 2 \"", 0);
 172         assert(!strcmp(getenv("ut_var_test"), " 1   2 "));
 173         setenv("ut_var_space", NULL);
 174         setenv("ut_var_test", NULL);
 175
 176 #ifdef CONFIG_SANDBOX
 177         /* File existence */
 178         HUSH_TEST(e, "-e hostfs - creating_this_file_breaks_uboot_unit_test", n);
 179         run_command("sb save hostfs - creating_this_file_breaks_uboot_unit_test 0 1", 0);
 180         HUSH_TEST(e, "-e hostfs - creating_this_file_breaks_uboot_unit_test", y);
 181         /* Perhaps this could be replaced by an "rm" shell command one day */
 182         assert(!os_unlink("creating_this_file_breaks_uboot_unit_test"));
 183         HUSH_TEST(e, "-e hostfs - creating_this_file_breaks_uboot_unit_test", n);
 184 #endif
 185 #endif
 186
 187         assert(run_command("", 0) == 0);
 188         assert(run_command(" ", 0) == 0);
 189
 190         assert(run_command("'", 0) == 1);
 191
 192         printf("%s: Everything went swimmingly\n", __func__);
 193         return 0;
 194 }
 195
 196 U_BOOT_CMD(
 197         ut_cmd, 5,      1,      do_ut_cmd,
 198         "Very basic test of command parsers",
 199         ""
 200 );