1 // -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
2 // vim: ts=8 sw=2 smarttab
4 * Ceph - scalable distributed file system
6 * Copyright (C) 2011 Dreamhost
8 * This is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU Lesser General Public
10 * License version 2.1, as published by the Free Software
11 * Foundation. See file COPYING.
15 #include "common/strtol.h"
19 #include "gtest/gtest.h"
21 static void test_strict_strtoll(const char *str, long long expected)
24 long long val = strict_strtoll(str, 10, &err);
29 ASSERT_EQ(val, expected);
33 static void test_strict_strtol(const char *str, long expected)
36 long val = strict_strtol(str, 10, &err);
41 ASSERT_EQ(val, expected);
45 static void test_strict_strtod(const char *str, double expected)
48 double val = strict_strtod(str, &err);
53 // when comparing floats, use a margin of error
54 if ((expected - 0.001 > val) || (expected + 0.001 < val)) {
55 ASSERT_EQ(val, expected);
60 static void test_strict_strtof(const char *str, float expected)
63 float val = strict_strtof(str, &err);
68 // when comparing floats, use a margin of error
69 if ((expected - 0.001 > val) || (expected + 0.001 < val)) {
70 ASSERT_EQ(val, expected);
75 TEST(StrToL, Simple1) {
76 test_strict_strtoll("123", 123);
77 test_strict_strtoll("0", 0);
78 test_strict_strtoll("-123", -123);
79 test_strict_strtoll("8796093022208", 8796093022208LL);
80 test_strict_strtoll("-8796093022208", -8796093022208LL);
82 test_strict_strtol("208", 208);
83 test_strict_strtol("-4", -4);
84 test_strict_strtol("0", 0);
85 test_strict_strtol("2147483646", 2147483646);
87 test_strict_strtof("0.05", 0.05);
88 test_strict_strtof("0", 0.0);
89 test_strict_strtof("-0", 0.0);
90 test_strict_strtof("10000000.5", 10000000.5);
92 test_strict_strtod("-0.2", -0.2);
93 test_strict_strtod("0.1", 0.1);
94 test_strict_strtod("0", 0.0);
97 static void test_strict_strtoll_err(const char *str)
100 strict_strtoll(str, 10, &err);
104 static void test_strict_strtol_err(const char *str)
107 strict_strtol(str, 10, &err);
111 static void test_strict_strtod_err(const char *str)
114 strict_strtod(str, &err);
118 static void test_strict_strtof_err(const char *str)
121 strict_strtof(str, &err);
125 TEST(StrToL, Error1) {
126 test_strict_strtoll_err("604462909807314587353088"); // overflow
127 test_strict_strtoll_err("aw shucks"); // invalid
128 test_strict_strtoll_err("343245 aw shucks"); // invalid chars at end
130 test_strict_strtol_err("35 aw shucks"); // invalid chars at end
131 test_strict_strtol_err("--0");
133 test_strict_strtod_err("345345.0-");
134 test_strict_strtod_err("34.0 garbo");
136 test_strict_strtof_err("0.05.0");
140 static void test_strict_sistrtoll(const char *str)
143 strict_sistrtoll(str, &err);
147 static void test_strict_sistrtoll_units(const std::string& foo,
152 const char *str = s.c_str();
154 uint64_t r = strict_sistrtoll(str, &err);
159 long long tmp = strict_strtoll(str, 10, &err2);
162 ASSERT_EQ(tmp, (long long)r);
165 TEST(SIStrToLL, WithUnits) {
166 std::map<char,int> units;
175 for (std::map<char,int>::iterator p = units.begin();
176 p != units.end(); ++p) {
177 // the upper bound of uint64_t is 2^64 = 4E
178 test_strict_sistrtoll_units("4", p->first, p->second);
179 test_strict_sistrtoll_units("1", p->first, p->second);
180 test_strict_sistrtoll_units("0", p->first, p->second);
184 TEST(SIStrToLL, WithoutUnits) {
185 test_strict_sistrtoll("1024");
186 test_strict_sistrtoll("1152921504606846976");
187 test_strict_sistrtoll("0");
190 static void test_strict_sistrtoll_err(const char *str)
193 strict_sistrtoll(str, &err);
197 TEST(SIStrToLL, Error) {
198 test_strict_sistrtoll_err("1024F");
199 test_strict_sistrtoll_err("QDDSA");
200 test_strict_sistrtoll_err("1b");
201 test_strict_sistrtoll_err("100k");
202 test_strict_sistrtoll_err("1000m");
203 test_strict_sistrtoll_err("1g");
204 test_strict_sistrtoll_err("20t");
205 test_strict_sistrtoll_err("100p");
206 test_strict_sistrtoll_err("1000e");
207 test_strict_sistrtoll_err("B");
208 test_strict_sistrtoll_err("M");
209 test_strict_sistrtoll_err("BM");
210 test_strict_sistrtoll_err("B0wef");
211 test_strict_sistrtoll_err("0m");
212 test_strict_sistrtoll_err("-1"); // it returns uint64_t
213 test_strict_sistrtoll_err("-1K");
214 // the upper bound of uint64_t is 2^64 = 4E, so 1024E overflows
215 test_strict_sistrtoll_err("1024E"); // overflows after adding the suffix
218 // since strict_sistrtoll is an alias of strict_si_cast<uint64_t>(), quite a few
219 // of cases are covered by existing test cases of strict_sistrtoll already.
220 TEST(StrictSICast, Error) {
223 // the SI prefix is way too large for `int`.
224 (void)strict_si_cast<int>("2E", &err);
229 (void)strict_si_cast<int>("-2E", &err);
234 (void)strict_si_cast<int>("1T", &err);
239 (void)strict_si_cast<int64_t>("2E", &err);
244 (void)strict_si_cast<int64_t>("-2E", &err);
249 (void)strict_si_cast<int64_t>("1T", &err);
256 * compile-command: "cd .. ; make unittest_strtol && ./unittest_strtol"