C++ getopt 库使用

作者: wyrover | 来源:发表于2016-11-28 14:46 被阅读235次

C++ getopt 库使用
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#include "getopt.h"

#include "testfx.h"

#include "testsupport.h"

option null_opt = {0};

TEST_F(getopt_fixture, test_getopt_long_empty) {

char* argv[] = {"foo.exe"};

option opts[] = {null_opt};

assert_equal(-1, (char)getopt_long(count(argv), argv, "abc", opts, NULL));

}

TEST_F(getopt_fixture, test_getopt_long_only_nonoptions) {

char* argv[] = {"foo.exe", "nonoption"};

option opts[] = {null_opt};

assert_equal(-1, (char)getopt_long(count(argv), argv, "a", opts, NULL));

}

TEST_F(getopt_fixture, test_getopt_long_only_shortopts) {

char* argv[] = {"foo.exe", "-a", "-b"};

option opts[] = {null_opt};

assert_equal('a', (char)getopt_long(count(argv), argv, "ab", opts, NULL));

assert_equal('b', (char)getopt_long(count(argv), argv, "ab", opts, NULL));

}

TEST_F(getopt_fixture, test_getopt_long_one_longopt) {

char* argv[] = {"foo.exe", "--first", "-a"};

option opts[] = {

{"first", no_argument, NULL, 'f'},

null_opt

};

assert_equal('f', (char)getopt_long(count(argv), argv, "ab", opts, NULL));

assert_equal('a', (char)getopt_long(count(argv), argv, "ab", opts, NULL));

}

TEST_F(getopt_fixture, test_getopt_long_two_longopts) {

char* argv[] = {"foo.exe", "--second", "--first"};

option opts[] = {

{"first", no_argument, NULL, 'f'},

{"second", no_argument, NULL, 's'},

null_opt

};

assert_equal('s', (char)getopt_long(count(argv), argv, "fs", opts, NULL));

assert_equal('f', (char)getopt_long(count(argv), argv, "fs", opts, NULL));

}

TEST_F(getopt_fixture, test_getopt_long_abbreviated) {

char* argv[] = {"foo.exe", "--fir", "--fif"};

option opts[] = {

{"first", no_argument, NULL, '1'},

{"fifth", no_argument, NULL, '5'},

null_opt

};

assert_equal('1', (char)getopt_long(count(argv), argv, "15", opts, NULL));

assert_equal('5', (char)getopt_long(count(argv), argv, "15", opts, NULL));

}

TEST_F(getopt_fixture, test_getopt_long_abbreviated_with_params) {

char* argv[] = {"foo.exe", "--fir=100", "--fif=500"};

option opts[] = {

{"first", required_argument, NULL, '1'},

{"fifth", required_argument, NULL, '5'},

null_opt

};

assert_equal('1', (char)getopt_long(count(argv), argv, "15", opts, NULL));

assert_equal("100", optarg);

assert_equal('5', (char)getopt_long(count(argv), argv, "15", opts, NULL));

assert_equal("500", optarg);

}

TEST_F(getopt_fixture, test_getopt_long_ambiguous_abbrev) {

char* argv[] = {"foo.exe", "--fi", "--fi"};

option opts[] = {

{"first", no_argument, NULL, '1'},

{"fifth", no_argument, NULL, '5'},

null_opt

};

// Ambiguous match

assert_equal('?', (char)getopt_long(count(argv), argv, "15", opts, NULL));

}

TEST_F(getopt_fixture, test_getopt_long_longindex) {

char* argv[] = {"foo.exe", "--second", "--first"};

option opts[] = {

{"first", no_argument, NULL, '1'},

{"second", no_argument, NULL, '2'},

null_opt

};

int longindex = -1;

getopt_long(count(argv), argv, "", opts, &longindex);

assert_equal(1, longindex);

getopt_long(count(argv), argv, "", opts, &longindex);

assert_equal(0, longindex);

}

TEST_F(getopt_fixture, test_getopt_long_flag) {

char* argv[] = {"foo.exe", "--second", "--first"};

int flag = 0;

option opts[] = {

{"first", no_argument, &flag, '1'},

{"second", no_argument, NULL, '2'},

null_opt

};

assert_equal('2', getopt_long(count(argv), argv, "12", opts, NULL));

assert_equal(0, getopt_long(count(argv), argv, "12", opts, NULL));

assert_equal('1', flag);

}

TEST_F(getopt_fixture, test_getopt_long_unknown) {

char* argv[] = {"foo.exe", "--unknown"};

option opts[] = {

{"first", no_argument, NULL, '1'},

{"second", no_argument, NULL, '2'},

null_opt

};

assert_equal('?', getopt_long(count(argv), argv, "12", opts, NULL));

assert_equal(2, optind); // optind should be incremented

}

TEST_F(getopt_fixture, test_getopt_long_required_argument_same_argv) {

char* argv[] = {"foo.exe", "--arg=value"};

option opts[] = {

{"arg", required_argument, NULL, 'a'},

null_opt

};

assert_equal('a', getopt_long(count(argv), argv, "a:", opts, NULL));

assert_equal("value", optarg);

}

TEST_F(getopt_fixture, test_getopt_long_required_argument_separate_argv) {

char* argv[] = {"foo.exe", "--arg", "value"};

option opts[] = {

{"arg", required_argument, NULL, 'a'},

null_opt

};

assert_equal('a', getopt_long(count(argv), argv, "a:", opts, NULL));

assert_equal("value", optarg);

}

TEST_F(getopt_fixture, test_getopt_long_missing_required_argument) {

char* argv[] = {"foo.exe", "--arg"};

option opts[] = {

{"arg", required_argument, NULL, 'a'},

null_opt

};

assert_equal(':', getopt_long(count(argv), argv, "a:", opts, NULL));

assert_equal((char*)NULL, optarg);

assert_equal(3, optind); // optind should be incremented past argc looking

// for args

}

TEST_F(getopt_fixture, test_getopt_long_extraneous_argument) {

option opts[] = {

{"arg", no_argument, NULL, 'a'},

null_opt

};

char* argv[] = {"foo.exe", "--arg=bar"};

assert_equal('?', getopt_long(count(argv), argv, "a", opts, NULL));

assert_equal((char*)NULL, optarg);

}

TEST_F(getopt_fixture, test_getopt_long_empty_required_argument) {

char* argv[] = {"foo.exe", "--arg="};

option opts[] = {

{"arg", required_argument, NULL, 'a'},

null_opt

};

assert_equal('a', getopt_long(count(argv), argv, "a:", opts, NULL));

assert_equal("", optarg);

}

TEST_F(getopt_fixture, test_getopt_long_optional_argument_same_argv) {

char* argv[] = {"foo.exe", "--arg=value"};

option opts[] = {

{"arg", optional_argument, NULL, 'a'},

null_opt

};

assert_equal('a', getopt_long(count(argv), argv, "a::", opts, NULL));

assert_equal("value", optarg);

}

TEST_F(getopt_fixture, test_getopt_long_optional_argument_separate_argv) {

char* argv[] = {"foo.exe", "--arg", "value"};

option opts[] = {

{"arg", optional_argument, NULL, 'a'},

null_opt

};

assert_equal('a', getopt_long(count(argv), argv, "a::", opts, NULL));

assert_equal((char*)NULL, optarg);

}

TEST_F(getopt_fixture, test_getopt_long_missing_optional_argument) {

char* argv[] = {"foo.exe", "--arg"};

option opts[] = {

{"arg", optional_argument, NULL, 'a'},

null_opt

};

assert_equal('a', getopt_long(count(argv), argv, "a::", opts, NULL));

assert_equal((char*)NULL, optarg);

assert_equal(2, optind);

}

TEST_F(getopt_fixture, test_getopt_long_empty_optional_argument) {

char* argv[] = {"foo.exe", "--arg="};

option opts[] = {

{"arg", optional_argument, NULL, 'a'},

null_opt

};

assert_equal('a', getopt_long(count(argv), argv, "a::", opts, NULL));

assert_equal("", optarg);

}

TEST_F(getopt_fixture, test_getopt_long_resets_optarg) {

// First use getopt() to put something into optarg.

char* argv[] = {"foo.exe", "-avalue"};

assert_equal('a', getopt(count(argv), argv, "a:"));

assert_equal("value", optarg);

optind = 1;

// Then make sure that getopt_long() doesn't get that value out

// when a non-option is processed

option opts[] = {

{"arg", optional_argument, NULL, 'a'},

null_opt

};

char* long_argv[] = {"foo.exe", "this"};

assert_equal(-1, getopt_long(count(long_argv), long_argv, "a::", opts, NULL));

assert_equal((char*)NULL, optarg);

}

TEST_F(getopt_fixture, test_getopt_long_resets_optopt) {

// First use getopt() to put something into optopt.

char* argv[] = {"foo.exe", "-z"};

assert_equal('?', getopt(count(argv), argv, "a"));

assert_equal('z', optopt);

optind = 1;

// Then make sure that getopt_long() doesn't get that value out

// when a non-option is processed

option opts[] = {

{"arg", no_argument, NULL, 'a'},

null_opt

};

char* long_argv[] = {"foo.exe", "--zarg"};

assert_equal('?', getopt_long(count(long_argv), long_argv, "a", opts, NULL));

assert_equal(0, optopt);

}

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