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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 | // SPDX-License-Identifier: GPL-2.0 /* * (C) Copyright 2021 * Francis Laniel, Amarula Solutions, francis.laniel@amarulasolutions.com */ #include <command.h> #include <env.h> #include <env_attr.h> #include <test/hush.h> #include <test/ut.h> #include <asm/global_data.h> DECLARE_GLOBAL_DATA_PTR; static int hush_test_simple_dollar(struct unit_test_state *uts) { ut_assertok(run_command("echo $dollar_foo", 0)); ut_assert_nextline_empty(); ut_assert_console_end(); ut_assertok(run_command("echo ${dollar_foo}", 0)); ut_assert_nextline_empty(); ut_assert_console_end(); ut_assertok(run_command("dollar_foo=bar", 0)); ut_assertok(run_command("echo $dollar_foo", 0)); ut_assert_nextline("bar"); ut_assert_console_end(); ut_assertok(run_command("echo ${dollar_foo}", 0)); ut_assert_nextline("bar"); ut_assert_console_end(); ut_assertok(run_command("dollar_foo=\\$bar", 0)); ut_assertok(run_command("echo $dollar_foo", 0)); ut_assert_nextline("$bar"); ut_assert_console_end(); ut_assertok(run_command("dollar_foo='$bar'", 0)); ut_assertok(run_command("echo $dollar_foo", 0)); ut_assert_nextline("$bar"); ut_assert_console_end(); ut_asserteq(1, run_command("dollar_foo=bar quux", 0)); /* Next line contains error message */ ut_assert_skipline(); ut_assert_console_end(); ut_asserteq(1, run_command("dollar_foo='bar quux", 0)); /* Next line contains error message */ ut_assert_skipline(); ut_assert_console_end(); ut_asserteq(1, run_command("dollar_foo=bar quux\"", 0)); /* Next line contains error message */ ut_assert_skipline(); /* * Old parser prints the error message on two lines: * Unknown command 'quux * ' - try 'help' * While the new only prints it on one: * syntax error: unterminated \" */ if (gd->flags & GD_FLG_HUSH_OLD_PARSER) { ut_assert_skipline(); } ut_assert_console_end(); ut_assertok(run_command("dollar_foo='bar \"quux'", 0)); ut_assertok(run_command("echo $dollar_foo", 0)); /* * This one is buggy. * ut_assert_nextline("bar \"quux"); * ut_assert_console_end(); * * So, let's reset output: */ console_record_reset_enable(); if (gd->flags & GD_FLG_HUSH_MODERN_PARSER) { /* * Old parser returns an error because it waits for closing * '\'', but this behavior is wrong as the '\'' is surrounded by * '"', so no need to wait for a closing one. */ ut_assertok(run_command("dollar_foo=\"bar 'quux\"", 0)); ut_assertok(run_command("echo $dollar_foo", 0)); ut_assert_nextline("bar 'quux"); ut_assert_console_end(); } else if (gd->flags & GD_FLG_HUSH_OLD_PARSER) { ut_asserteq(1, run_command("dollar_foo=\"bar 'quux\"", 0)); /* Next line contains error message */ ut_assert_skipline(); ut_assert_console_end(); } ut_assertok(run_command("dollar_foo='bar quux'", 0)); ut_assertok(run_command("echo $dollar_foo", 0)); ut_assert_nextline("bar quux"); ut_assert_console_end(); if (gd->flags & GD_FLG_HUSH_MODERN_PARSER) { /* Reset local variable. */ ut_assertok(run_command("dollar_foo=", 0)); } else if (gd->flags & GD_FLG_HUSH_OLD_PARSER) { puts("Beware: this test set local variable dollar_foo and it cannot be unset!\n"); } return 0; } HUSH_TEST(hush_test_simple_dollar, UTF_CONSOLE); static int hush_test_env_dollar(struct unit_test_state *uts) { env_set("env_foo", "bar"); ut_assertok(run_command("echo $env_foo", 0)); ut_assert_nextline("bar"); ut_assert_console_end(); ut_assertok(run_command("echo ${env_foo}", 0)); ut_assert_nextline("bar"); ut_assert_console_end(); /* Environment variables have priority over local variable */ ut_assertok(run_command("env_foo=quux", 0)); ut_assertok(run_command("echo ${env_foo}", 0)); ut_assert_nextline("bar"); ut_assert_console_end(); /* Clean up setting the variable */ env_set("env_foo", NULL); if (gd->flags & GD_FLG_HUSH_MODERN_PARSER) { /* Reset local variable. */ ut_assertok(run_command("env_foo=", 0)); } else if (gd->flags & GD_FLG_HUSH_OLD_PARSER) { puts("Beware: this test set local variable env_foo and it cannot be unset!\n"); } return 0; } HUSH_TEST(hush_test_env_dollar, UTF_CONSOLE); static int hush_test_command_dollar(struct unit_test_state *uts) { ut_assertok(run_command("dollar_bar=\"echo bar\"", 0)); ut_assertok(run_command("$dollar_bar", 0)); ut_assert_nextline("bar"); ut_assert_console_end(); ut_assertok(run_command("${dollar_bar}", 0)); ut_assert_nextline("bar"); ut_assert_console_end(); ut_assertok(run_command("dollar_bar=\"echo\nbar\"", 0)); ut_assertok(run_command("$dollar_bar", 0)); ut_assert_nextline("bar"); ut_assert_console_end(); ut_assertok(run_command("dollar_bar='echo bar\n'", 0)); ut_assertok(run_command("$dollar_bar", 0)); ut_assert_nextline("bar"); ut_assert_console_end(); ut_assertok(run_command("dollar_bar='echo bar\\n'", 0)); ut_assertok(run_command("$dollar_bar", 0)); if (gd->flags & GD_FLG_HUSH_MODERN_PARSER) { /* * This difference seems to come from a bug solved in Busybox * hush. * Behavior of hush 2021 is coherent with bash and other shells. */ ut_assert_nextline("bar\\n"); } else if (gd->flags & GD_FLG_HUSH_OLD_PARSER) { ut_assert_nextline("barn"); } ut_assert_console_end(); ut_assertok(run_command("dollar_bar='echo $bar'", 0)); ut_assertok(run_command("$dollar_bar", 0)); ut_assert_nextline("$bar"); ut_assert_console_end(); ut_assertok(run_command("dollar_quux=quux", 0)); ut_assertok(run_command("dollar_bar=\"echo $dollar_quux\"", 0)); ut_assertok(run_command("$dollar_bar", 0)); ut_assert_nextline("quux"); ut_assert_console_end(); if (gd->flags & GD_FLG_HUSH_MODERN_PARSER) { /* Reset local variables. */ ut_assertok(run_command("dollar_bar=", 0)); ut_assertok(run_command("dollar_quux=", 0)); } else if (gd->flags & GD_FLG_HUSH_OLD_PARSER) { puts("Beware: this test sets local variable dollar_bar and " "dollar_quux and they cannot be unset!\n"); } return 0; } HUSH_TEST(hush_test_command_dollar, UTF_CONSOLE); |