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