xref: /openbmc/u-boot/test/command_ut.c (revision 7237d22b)
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 );
186