external/bsd/atf/dist/atf-c++/config_test.cpp

   1 //
   2 // Automated Testing Framework (atf)
   3 //
   4 // Copyright (c) 2007 The NetBSD Foundation, Inc.
   5 // All rights reserved.
   6 //
   7 // Redistribution and use in source and binary forms, with or without
   8 // modification, are permitted provided that the following conditions
   9 // are met:
  10 // 1. Redistributions of source code must retain the above copyright
  11 //    notice, this list of conditions and the following disclaimer.
  12 // 2. Redistributions in binary form must reproduce the above copyright
  13 //    notice, this list of conditions and the following disclaimer in the
  14 //    documentation and/or other materials provided with the distribution.
  15 //
  16 // THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND
  17 // CONTRIBUTORS ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
  18 // INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
  19 // MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  20 // IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS BE LIABLE FOR ANY
  21 // DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  22 // DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
  23 // GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  24 // INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
  25 // IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
  26 // OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
  27 // IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  28 //
  29
  30 #include <cstring>
  31 #include <iostream>
  32
  33 #include "config.hpp"
  34 #include "macros.hpp"
  35
  36 #include "detail/env.hpp"
  37 #include "detail/exceptions.hpp"
  38 #include "detail/test_helpers.hpp"
  39
  40 static const char *test_value = "env-value";
  41
  42 static struct varnames {
  43     const char *lc;
  44     const char *uc;
  45     bool can_be_empty;
  46 } all_vars[] = {
  47     { "atf_build_cc",       "ATF_BUILD_CC",       false },
  48     { "atf_build_cflags",   "ATF_BUILD_CFLAGS",   true  },
  49     { "atf_build_cpp",      "ATF_BUILD_CPP",      false },
  50     { "atf_build_cppflags", "ATF_BUILD_CPPFLAGS", true  },
  51     { "atf_build_cxx",      "ATF_BUILD_CXX",      false },
  52     { "atf_build_cxxflags", "ATF_BUILD_CXXFLAGS", true  },
  53     { "atf_includedir",     "ATF_INCLUDEDIR",     false },
  54     { "atf_libexecdir",     "ATF_LIBEXECDIR",     false },
  55     { "atf_pkgdatadir",     "ATF_PKGDATADIR",     false },
  56     { "atf_shell",          "ATF_SHELL",          false },
  57     { "atf_workdir",        "ATF_WORKDIR",        false },
  58     { NULL,                 NULL,                 false }
  59 };
  60
  61 // ------------------------------------------------------------------------
  62 // Auxiliary functions.
  63 // ------------------------------------------------------------------------
  64
  65 namespace atf {
  66     namespace config {
  67         void __reinit(void);
  68     }
  69 }
  70
  71 static
  72 void
  73 set_env_var(const char* name, const char* val)
  74 {
  75     try {
  76         atf::env::set(name, val);
  77     } catch (const atf::system_error&) {
  78         ATF_FAIL(std::string("set_env_var(") + name + ", " + val +
  79                  ") failed");
  80     }
  81 }
  82
  83 static
  84 void
  85 unset_env_var(const char* name)
  86 {
  87     try {
  88         atf::env::unset(name);
  89     } catch (const atf::system_error&) {
  90         ATF_FAIL(std::string("unset_env_var(") + name + ") failed");
  91     }
  92 }
  93
  94 static
  95 size_t
  96 all_vars_count(void)
  97 {
  98     size_t count = 0;
  99     for (const struct varnames* v = all_vars; v->lc != NULL; v++)
 100         count++;
 101     return count;
 102 }
 103
 104 static
 105 void
 106 unset_all(void)
 107 {
 108     for (const struct varnames* v = all_vars; v->lc != NULL; v++)
 109         unset_env_var(v->uc);
 110 }
 111
 112 static
 113 void
 114 compare_one(const char* var, const char* expvalue)
 115 {
 116     std::cout << "Checking that " << var << " is set to " << expvalue << "\n";
 117
 118     for (const struct varnames* v = all_vars; v->lc != NULL; v++) {
 119         if (std::strcmp(v->lc, var) == 0)
 120             ATF_REQUIRE_EQ(atf::config::get(v->lc), test_value);
 121         else
 122             ATF_REQUIRE(atf::config::get(v->lc) != test_value);
 123     }
 124 }
 125
 126 // ------------------------------------------------------------------------
 127 // Test cases for the free functions.
 128 // ------------------------------------------------------------------------
 129
 130 ATF_TEST_CASE(get);
 131 ATF_TEST_CASE_HEAD(get)
 132 {
 133     set_md_var("descr", "Tests the config::get function");
 134 }
 135 ATF_TEST_CASE_BODY(get)
 136 {
 137     // Unset all known environment variables and make sure the built-in
 138     // values do not match the bogus value we will use for testing.
 139     unset_all();
 140     atf::config::__reinit();
 141     for (const struct varnames* v = all_vars; v->lc != NULL; v++)
 142         ATF_REQUIRE(atf::config::get(v->lc) != test_value);
 143
 144     // Test the behavior of empty values.
 145     for (const struct varnames* v = all_vars; v->lc != NULL; v++) {
 146         unset_all();
 147         if (!atf::config::get(v->lc).empty()) {
 148             set_env_var(v->uc, "");
 149             atf::config::__reinit();
 150             if (v->can_be_empty)
 151                 ATF_REQUIRE(atf::config::get(v->lc).empty());
 152             else
 153                 ATF_REQUIRE(!atf::config::get(v->lc).empty());
 154         }
 155     }
 156
 157     // Check if the ATF_ARCH variable is recognized.
 158     for (const struct varnames* v = all_vars; v->lc != NULL; v++) {
 159         unset_all();
 160         set_env_var(v->uc, test_value);
 161         atf::config::__reinit();
 162         compare_one(v->lc, test_value);
 163     }
 164 }
 165
 166 ATF_TEST_CASE(get_all);
 167 ATF_TEST_CASE_HEAD(get_all)
 168 {
 169     set_md_var("descr", "Tests the config::get_all function");
 170 }
 171 ATF_TEST_CASE_BODY(get_all)
 172 {
 173     atf::config::__reinit();
 174
 175     // Check that the valid variables, and only those, are returned.
 176     std::map< std::string, std::string > vars = atf::config::get_all();
 177     ATF_REQUIRE_EQ(vars.size(), all_vars_count());
 178     for (const struct varnames* v = all_vars; v->lc != NULL; v++)
 179         ATF_REQUIRE(vars.find(v->lc) != vars.end());
 180 }
 181
 182 ATF_TEST_CASE(has);
 183 ATF_TEST_CASE_HEAD(has)
 184 {
 185     set_md_var("descr", "Tests the config::has function");
 186 }
 187 ATF_TEST_CASE_BODY(has)
 188 {
 189     atf::config::__reinit();
 190
 191     // Check for all the variables that must exist.
 192     for (const struct varnames* v = all_vars; v->lc != NULL; v++)
 193         ATF_REQUIRE(atf::config::has(v->lc));
 194
 195     // Same as above, but using uppercase (which is incorrect).
 196     for (const struct varnames* v = all_vars; v->lc != NULL; v++)
 197         ATF_REQUIRE(!atf::config::has(v->uc));
 198
 199     // Check for some other variables that cannot exist.
 200     ATF_REQUIRE(!atf::config::has("foo"));
 201     ATF_REQUIRE(!atf::config::has("BAR"));
 202     ATF_REQUIRE(!atf::config::has("atf_foo"));
 203     ATF_REQUIRE(!atf::config::has("ATF_BAR"));
 204     ATF_REQUIRE(!atf::config::has("atf_shel"));
 205     ATF_REQUIRE(!atf::config::has("atf_shells"));
 206 }
 207
 208 // ------------------------------------------------------------------------
 209 // Tests cases for the header file.
 210 // ------------------------------------------------------------------------
 211
 212 HEADER_TC(include, "atf-c++/config.hpp");
 213
 214 // ------------------------------------------------------------------------
 215 // Main.
 216 // ------------------------------------------------------------------------
 217
 218 ATF_INIT_TEST_CASES(tcs)
 219 {
 220     // Add the test cases for the free functions.
 221     ATF_ADD_TEST_CASE(tcs, has);
 222     ATF_ADD_TEST_CASE(tcs, get);
 223     ATF_ADD_TEST_CASE(tcs, get_all);
 224
 225     // Add the test cases for the header file.
 226     ATF_ADD_TEST_CASE(tcs, include);
 227 }