1 /* 2 * Copyright 2011 The Chromium Authors, All Rights Reserved. 3 * 4 * utilfdt_test - Tests for utilfdt library 5 * 6 * This library is free software; you can redistribute it and/or 7 * modify it under the terms of the GNU Lesser General Public License 8 * as published by the Free Software Foundation; either version 2.1 of 9 * the License, or (at your option) any later version. 10 * 11 * This library is distributed in the hope that it will be useful, but 12 * WITHOUT ANY WARRANTY; without even the implied warranty of 13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 14 * Lesser General Public License for more details. 15 * 16 * You should have received a copy of the GNU Lesser General Public 17 * License along with this library; if not, write to the Free Software 18 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA 19 */ 20 #include <assert.h> 21 #include <stdlib.h> 22 #include <stdio.h> 23 #include <string.h> 24 #include <stdint.h> 25 #include <stdarg.h> 26 27 #include <libfdt.h> 28 #include <util.h> 29 30 #include "tests.h" 31 #include "testdata.h" 32 33 static void check(const char *fmt, int expect_type, int expect_size) 34 { 35 int type; 36 int size; 37 38 if (utilfdt_decode_type(fmt, &type, &size)) 39 FAIL("format '%s': valid format string returned failure", fmt); 40 if (expect_type != type) 41 FAIL("format '%s': expected type='%c', got type='%c'", fmt, 42 expect_type, type); 43 if (expect_size != size) 44 FAIL("format '%s': expected size=%d, got size=%d", fmt, 45 expect_size, size); 46 } 47 48 static void checkfail(const char *fmt) 49 { 50 int type; 51 int size; 52 53 if (!utilfdt_decode_type(fmt, &type, &size)) 54 FAIL("format '%s': invalid format string returned success", 55 fmt); 56 } 57 58 /** 59 * Add the given modifier to each of the valid sizes, and check that we get 60 * correct values. 61 * 62 * \param modifier Modifer string to use as a prefix 63 * \param expected_size The size (in bytes) that we expect (ignored for 64 * strings) 65 */ 66 static void check_sizes(char *modifier, int expected_size) 67 { 68 char fmt[10], *ptr; 69 70 /* set up a string with a hole in it for the format character */ 71 if (strlen(modifier) + 2 >= sizeof(fmt)) 72 FAIL("modifier string '%s' too long", modifier); 73 strcpy(fmt, modifier); 74 ptr = fmt + strlen(fmt); 75 ptr[1] = '\0'; 76 77 /* now try each format character in turn */ 78 *ptr = 'i'; 79 check(fmt, 'i', expected_size); 80 81 *ptr = 'u'; 82 check(fmt, 'u', expected_size); 83 84 *ptr = 'x'; 85 check(fmt, 'x', expected_size); 86 87 *ptr = 's'; 88 check(fmt, 's', -1); 89 } 90 91 static void test_utilfdt_decode_type(void) 92 { 93 char fmt[10]; 94 int ch; 95 96 /* check all the valid modifiers and sizes */ 97 check_sizes("", -1); 98 check_sizes("b", 1); 99 check_sizes("hh", 1); 100 check_sizes("h", 2); 101 check_sizes("l", 4); 102 103 /* try every other character */ 104 checkfail(""); 105 for (ch = ' '; ch < 127; ch++) { 106 if (!strchr("iuxs", ch)) { 107 *fmt = ch; 108 fmt[1] = '\0'; 109 checkfail(fmt); 110 } 111 } 112 113 /* try a few modifiers at the end */ 114 checkfail("sx"); 115 checkfail("ihh"); 116 checkfail("xb"); 117 118 /* and one for the doomsday archives */ 119 checkfail("He has all the virtues I dislike and none of the vices " 120 "I admire."); 121 } 122 123 int main(int argc, char *argv[]) 124 { 125 test_utilfdt_decode_type(); 126 PASS(); 127 } 128
