1 // SPDX-License-Identifier: GPL-2.0+
2 /*
3 * Tests for echo command
4 *
5 * Copyright 2020, Heinrich Schuchadt <xypron.glpk@gmx.de>
6 */
7
8 #include <command.h>
9 #include <asm/global_data.h>
10 #include <display_options.h>
11 #include <test/lib.h>
12 #include <test/test.h>
13 #include <test/ut.h>
14
15 DECLARE_GLOBAL_DATA_PTR;
16
17 struct test_data {
18 char *cmd;
19 char *expected;
20 };
21
22 static struct test_data echo_data[] = {
23 {"echo 1 2 3",
24 "1 2 3"},
25 /* Test new line handling */
26 {"echo -n 1 2 3; echo a b c",
27 "1 2 3a b c"},
28 /*
29 * Test handling of environment variables.
30 *
31 * j, q, x are among the least frequent letters in English.
32 * Hence no collision for the variable name jQx is expected.
33 */
34 {"setenv jQx X; echo \"a)\" ${jQx} 'b)' '${jQx}' c) ${jQx}; setenv jQx",
35 "a) X b) ${jQx} c) X"},
36 /* Test shell variable assignments without substitutions */
37 {"foo=bar echo baz", "baz"},
38 /* Test handling of shell variables. */
39 {"setenv jQx; for jQx in 1 2 3; do echo -n \"${jQx}, \"; done; echo;",
40 "1, 2, 3, "},
41 };
42
lib_test_hush_echo(struct unit_test_state * uts)43 static int lib_test_hush_echo(struct unit_test_state *uts)
44 {
45 int i;
46
47 for (i = 0; i < ARRAY_SIZE(echo_data); ++i) {
48 ut_assertok(run_command(echo_data[i].cmd, 0));
49 console_record_readline(uts->actual_str,
50 sizeof(uts->actual_str));
51 ut_asserteq_str(echo_data[i].expected, uts->actual_str);
52 ut_assert_console_end();
53 }
54 return 0;
55 }
56 LIB_TEST(lib_test_hush_echo, UTF_CONSOLE);
57