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-rw-r--r--test/argparser_test.cc1019
1 files changed, 1019 insertions, 0 deletions
diff --git a/test/argparser_test.cc b/test/argparser_test.cc
new file mode 100644
index 0000000..b649e8c
--- /dev/null
+++ b/test/argparser_test.cc
@@ -0,0 +1,1019 @@
+#include <argparser.h>
+
+#include <iostream>
+#include <string>
+
+std::ostream& operator<<(std::ostream& ostr, const arg::error& err)
+{
+ switch(err)
+ {
+ case arg::error::invalid_arg:
+ ostr << "arg::error::invalid_arg";
+ break;
+ case arg::error::invalid_opt:
+ ostr << "arg::error::invalid_opt";
+ break;
+ case arg::error::missing_arg:
+ ostr << "arg::error::missing_arg";
+ break;
+ }
+ return ostr;
+}
+
+#include <uunit.h>
+
+class ArgParserTest
+ : public uUnit
+{
+public:
+ ArgParserTest()
+ {
+ uTEST(ArgParserTest::test_zero);
+ uTEST(ArgParserTest::test_one);
+ uTEST(ArgParserTest::test_many);
+ uTEST(ArgParserTest::test_exceptional);
+ uTEST(ArgParserTest::test_err_callback);
+ uTEST(ArgParserTest::test_pos_callback);
+ uTEST(ArgParserTest::test_grouped);
+ uTEST(ArgParserTest::test_nullprogram);
+ }
+
+ void test_zero()
+ {
+ const char* const argv[] = { "app-name" };
+ int argc = sizeof(argv)/sizeof(*argv);
+
+ arg::Parser<int> args(argc, argv);
+
+ auto res = args.parse();
+ uASSERT_EQUAL(0, res);
+ }
+
+ void test_one()
+ {
+ const char* argv[] = { "app-name", "-x", "42" };
+ int argc = sizeof(argv)/sizeof(*argv);
+
+ arg::Parser<int> args(argc, argv);
+
+ int x{};
+ args.add('x', "--long-x",
+ std::function([&](int i){ x = i; return 0;}), "Help x");
+
+ auto res = args.parse();
+ uASSERT_EQUAL(0, res);
+ uASSERT_EQUAL(42, x);
+ }
+
+ void test_many()
+ {
+ const char* argv[] = { "app-name", "-x", "42", "-y17", "-z",
+ "--long-X=12", "--long-Y", "18" };
+ int argc = sizeof(argv)/sizeof(*argv);
+
+ arg::Parser<int> args(argc, argv);
+
+ int x{};
+ int y{};
+ bool z{false};
+ int X{};
+ int Y{};
+
+ args.add('x', "--long-x",
+ std::function([&](int i){ x = i; return 0;}), "Help x");
+
+ args.add('y', "--long-y",
+ std::function([&](int i){ y = i; return 0;}), "Help y");
+
+ args.add('z', "--long-z",
+ std::function([&](){ z = true; return 0;}), "Help z");
+
+ args.add('X', "--long-X",
+ std::function([&](int i){ X = i; return 0;}), "Help X");
+
+ args.add('Y', "--long-Y",
+ std::function([&](int i){ Y = i; return 0;}), "Help Y");
+
+ auto res = args.parse();
+ uASSERT_EQUAL(0, res);
+ uASSERT_EQUAL(42, x);
+ uASSERT_EQUAL(17, y);
+ uASSERT_EQUAL(true, z);
+ uASSERT_EQUAL(12, X);
+ uASSERT_EQUAL(18, Y);
+ }
+
+ void test_exceptional()
+ {
+
+ { // Missing arg at trailing opt
+ const char* argv[] = { "app-name", "-x" };
+ int argc = sizeof(argv)/sizeof(*argv);
+ arg::Parser<int> args(argc, argv);
+
+ int x{};
+ int y{};
+
+ args.add('x', "--long-x",
+ std::function([&](int i){ x = i; return 0;}), "Help x");
+
+ args.add('y', "--long-y",
+ std::function([&](int i){ y = i; return 0;}), "Help y");
+
+ auto res = args.parse();
+ uASSERT_EQUAL(1, res);
+ }
+
+ { // Missing arg before other opt
+ const char* argv[] = { "app-name", "-x", "-y" };
+ int argc = sizeof(argv)/sizeof(*argv);
+ arg::Parser<int> args(argc, argv);
+
+ int x{};
+ int y{};
+
+ args.add('x', "--long-x",
+ std::function([&](int i){ x = i; return 0;}), "Help x");
+
+ args.add('y', "--long-y",
+ std::function([&](int i){ y = i; return 0;}), "Help y");
+
+ auto res = args.parse();
+ uASSERT_EQUAL(1, res);
+ }
+
+ { // Unknown arg
+ const char* argv[] = { "app-name", "-T" };
+ int argc = sizeof(argv)/sizeof(*argv);
+ arg::Parser<int> args(argc, argv);
+
+ int x{};
+ int y{};
+
+ args.add('x', "--long-x",
+ std::function([&](int i){ x = i; return 0;}), "Help x");
+
+ args.add('y', "--long-y",
+ std::function([&](int i){ y = i; return 0;}), "Help y");
+
+ auto res = args.parse();
+ uASSERT_EQUAL(1, res);
+ }
+ }
+
+ void test_err_callback()
+ {
+ using namespace std::string_literals;
+
+ { // Missing arg at trailing opt
+ const char* argv[] = { "app-name", "-x" };
+ int argc = sizeof(argv)/sizeof(*argv);
+ arg::Parser<int> args(argc, argv);
+
+ int x{};
+ args.add('x', "--long-x",
+ std::function([&](int i){ x = i; return 0;}), "Help x");
+
+ bool called{false};
+ args.set_err_cb(
+ [&](arg::error err, std::string_view opt)
+ {
+ called = true;
+ uASSERT_EQUAL(arg::error::missing_arg, err);
+ uASSERT_EQUAL("-x"s, opt);
+ });
+ auto res = args.parse();
+ uASSERT_EQUAL(1, res);
+ uASSERT(called);
+ }
+
+ { // Invalid arg format
+ const char* argv[] = { "app-name", "-x", "abc" };
+ int argc = sizeof(argv)/sizeof(*argv);
+ arg::Parser<int> args(argc, argv);
+
+ int x{};
+ args.add('x', "--long-x",
+ std::function([&](int i){ x = i; return 0;}), "Help x");
+
+ bool called{false};
+ args.set_err_cb(
+ [&](arg::error err, std::string_view opt)
+ {
+ called = true;
+ uASSERT_EQUAL(arg::error::invalid_arg, err);
+ uASSERT_EQUAL("abc"s, opt);
+ });
+ auto res = args.parse();
+ uASSERT_EQUAL(1, res);
+ uASSERT(called);
+ }
+
+ { // Invalid opt
+ const char* argv[] = { "app-name", "-y" };
+ int argc = sizeof(argv)/sizeof(*argv);
+ arg::Parser<int> args(argc, argv);
+
+ int x{};
+ args.add('x', "--long-x",
+ std::function([&](int i){ x = i; return 0;}), "Help x");
+
+ bool called{false};
+ args.set_err_cb(
+ [&](arg::error err, std::string_view opt)
+ {
+ called = true;
+ uASSERT_EQUAL(arg::error::invalid_opt, err);
+ uASSERT_EQUAL("-y"s, opt);
+ });
+ auto res = args.parse();
+ uASSERT_EQUAL(1, res);
+ uASSERT(called);
+ }
+ }
+
+ void test_pos_callback()
+ {
+ using namespace std::string_literals;
+ const char* argv[] =
+ { "app-name", "foo", "-x", "42", "bar", "-X43", "-Y", "42" };
+ int argc = sizeof(argv)/sizeof(*argv);
+ arg::Parser<int, std::optional<int>> args(argc, argv);
+
+ int x{};
+ int X{};
+ int Y{};
+ args.add('x', "--long-x",
+ std::function([&](int i){ x = i; return 0;}), "Help x");
+
+ args.add('X', "--opt-x",
+ std::function([&](std::optional<int> i)
+ {
+ uASSERT(i.has_value());
+ X = *i;
+ return 0;
+ }),
+ "Help X");
+
+ args.add('Y', "--opt-y",
+ std::function([&](std::optional<int> i)
+ {
+ uASSERT(!i.has_value());
+ Y = 1;
+ return 0;
+ }),
+ "Help X");
+
+ std::vector<std::string> pos;
+ args.set_pos_cb(
+ [&](std::string_view sv)
+ {
+ pos.push_back(std::string(sv));
+ return 0;
+ });
+ auto res = args.parse();
+ uASSERT_EQUAL(0, res);
+ uASSERT_EQUAL(3u, pos.size());
+ uASSERT_EQUAL("foo"s, pos[0]);
+ uASSERT_EQUAL("bar"s, pos[1]);
+ uASSERT_EQUAL("42"s, pos[2]);
+ uASSERT_EQUAL(42, x);
+ uASSERT_EQUAL(43, X);
+ uASSERT_EQUAL(1, Y);
+ }
+
+ void test_grouped()
+ {
+ {
+ const char* argv[] = { "app-name", "-xyz", "42" };
+ int argc = sizeof(argv)/sizeof(*argv);
+
+ arg::Parser<int> args(argc, argv);
+
+ bool x{false};
+ bool y{false};
+ int z{};
+ args.add('x', "--long-x",
+ std::function([&](){ x = true; return 0;}), "Help x");
+
+ args.add('y', "--long-y",
+ std::function([&](){ y = true; return 0;}), "Help y");
+
+ args.add('z', "--long-z",
+ std::function([&](int i){ z = i; return 0;}), "Help z");
+
+ auto res = args.parse();
+ uASSERT_EQUAL(0, res);
+ uASSERT(x);
+ uASSERT(y);
+ uASSERT_EQUAL(42, z);
+ }
+
+ {
+ const char* argv[] = { "app-name", "-xyz42" };
+ int argc = sizeof(argv)/sizeof(*argv);
+
+ arg::Parser<int> args(argc, argv);
+
+ bool x{false};
+ bool y{false};
+ int z{};
+ args.add('x', "--long-x",
+ std::function([&](){ x = true; return 0;}), "Help x");
+
+ args.add('y', "--long-y",
+ std::function([&](){ y = true; return 0;}), "Help y");
+
+ args.add('z', "--long-z",
+ std::function([&](int i){ z = i; return 0;}), "Help z");
+
+ auto res = args.parse();
+ uASSERT_EQUAL(0, res);
+ uASSERT(x);
+ uASSERT(y);
+ uASSERT_EQUAL(42, z);
+ }
+
+
+ {
+ const char* argv[] = { "app-name", "-xyz42" };
+ int argc = sizeof(argv)/sizeof(*argv);
+
+ arg::Parser<int, std::optional<int>> args(argc, argv);
+
+ bool x{false};
+ bool y{false};
+ int z{};
+ args.add('x', "--long-x",
+ std::function([&](){ x = true; return 0;}), "Help x");
+
+ args.add('y', "--long-y",
+ std::function([&](){ y = true; return 0;}), "Help y");
+
+ args.add('z', "--long-z",
+ std::function([&](std::optional<int> i)
+ {
+ uASSERT(i.has_value());
+ z = *i; return 0;
+ }), "Help z");
+
+ auto res = args.parse();
+ uASSERT_EQUAL(0, res);
+ uASSERT(x);
+ uASSERT(y);
+ uASSERT_EQUAL(42, z);
+ }
+
+ {
+ const char* argv[] = { "app-name", "-xyz" };
+ int argc = sizeof(argv)/sizeof(*argv);
+
+ arg::Parser<int, std::optional<int>> args(argc, argv);
+
+ bool x{false};
+ bool y{false};
+ int z{};
+ args.add('x', "--long-x",
+ std::function([&](){ x = true; return 0;}), "Help x");
+
+ args.add('y', "--long-y",
+ std::function([&](){ y = true; return 0;}), "Help y");
+
+ args.add('z', "--long-z",
+ std::function([&](std::optional<int> i)
+ {
+ uASSERT(!i.has_value());
+ z = 1; return 0;
+ }), "Help z");
+
+ auto res = args.parse();
+ uASSERT_EQUAL(0, res);
+ uASSERT(x);
+ uASSERT(y);
+ uASSERT_EQUAL(1, z);
+ }
+
+ {
+ const char* argv[] = { "app-name", "-xyz", "42" };
+ int argc = sizeof(argv)/sizeof(*argv);
+
+ arg::Parser<int, std::optional<int>> args(argc, argv);
+
+ bool x{false};
+ bool y{false};
+ int z{};
+ args.add('x', "--long-x",
+ std::function([&](){ x = true; return 0;}), "Help x");
+
+ args.add('y', "--long-y",
+ std::function([&](){ y = true; return 0;}), "Help y");
+
+ args.add('z', "--long-z",
+ std::function([&](std::optional<int> i)
+ {
+ uASSERT(!i.has_value());
+ z = 1; return 0;
+ }), "Help z");
+
+ auto res = args.parse();
+ uASSERT_EQUAL(0, res);
+ uASSERT(x);
+ uASSERT(y);
+ uASSERT_EQUAL(1, z);
+ }
+ }
+
+ void test_nullprogram()
+ {
+ using namespace std::string_literals;
+ // Inspired by https://nullprogram.com/blog/2020/08/01/
+
+ //
+ // Short options
+ //
+ {
+ const char* argv[] = { "program", "-a", "-b", "-c" };
+ int argc = sizeof(argv)/sizeof(*argv);
+
+ arg::Parser<> args(argc, argv);
+
+ std::vector<char> r;
+ args.add('a', {}, std::function([&](){ r.push_back('a'); return 0;}), {});
+ args.add('b', {}, std::function([&](){ r.push_back('b'); return 0;}), {});
+ args.add('c', {}, std::function([&](){ r.push_back('c'); return 0;}), {});
+
+ auto res = args.parse();
+ uASSERT_EQUAL(0, res);
+ uASSERT_EQUAL(3u, r.size());
+ uASSERT_EQUAL('a', r[0]);
+ uASSERT_EQUAL('b', r[1]);
+ uASSERT_EQUAL('c', r[2]);
+ }
+
+ {
+ const char* argv[] = { "program", "-abc" };
+ int argc = sizeof(argv)/sizeof(*argv);
+
+ arg::Parser<> args(argc, argv);
+
+ std::vector<char> r;
+ args.add('a', {}, std::function([&](){ r.push_back('a'); return 0;}), {});
+ args.add('b', {}, std::function([&](){ r.push_back('b'); return 0;}), {});
+ args.add('c', {}, std::function([&](){ r.push_back('c'); return 0;}), {});
+
+ auto res = args.parse();
+ uASSERT_EQUAL(0, res);
+ uASSERT_EQUAL(3u, r.size());
+ uASSERT_EQUAL('a', r[0]);
+ uASSERT_EQUAL('b', r[1]);
+ uASSERT_EQUAL('c', r[2]);
+ }
+
+ {
+ const char* argv[] = { "program", "-acb" };
+ int argc = sizeof(argv)/sizeof(*argv);
+
+ arg::Parser<> args(argc, argv);
+
+ std::vector<char> r;
+ args.add('a', {}, std::function([&](){ r.push_back('a'); return 0;}), {});
+ args.add('b', {}, std::function([&](){ r.push_back('b'); return 0;}), {});
+ args.add('c', {}, std::function([&](){ r.push_back('c'); return 0;}), {});
+
+ auto res = args.parse();
+ uASSERT_EQUAL(0, res);
+ uASSERT_EQUAL(3u, r.size());
+ uASSERT_EQUAL('a', r[0]);
+ uASSERT_EQUAL('c', r[1]);
+ uASSERT_EQUAL('b', r[2]);
+ }
+
+ {
+ const char* argv[] = { "program", "-i", "input.txt", "-o", "output.txt" };
+ int argc = sizeof(argv)/sizeof(*argv);
+
+ arg::Parser<std::string> args(argc, argv);
+
+ std::vector<std::string> r;
+ args.add('i', {},
+ std::function([&](std::string input)
+ {
+ r.push_back(input);
+ return 0;
+ }), {});
+
+ args.add('o', {},
+ std::function([&](std::string input)
+ {
+ r.push_back(input);
+ return 0;
+ }), {});
+
+
+ auto res = args.parse();
+ uASSERT_EQUAL(0, res);
+ uASSERT_EQUAL(2u, r.size());
+ uASSERT_EQUAL("input.txt"s, r[0]);
+ uASSERT_EQUAL("output.txt"s, r[1]);
+ }
+
+ {
+ const char* argv[] = { "program", "-iinput.txt", "-ooutput.txt" };
+ int argc = sizeof(argv)/sizeof(*argv);
+
+ arg::Parser<std::string> args(argc, argv);
+
+ std::vector<std::string> r;
+ args.add('i', {},
+ std::function([&](std::string input)
+ {
+ r.push_back(input);
+ return 0;
+ }), {});
+ args.add('o', {},
+ std::function([&](std::string input)
+ {
+ r.push_back(input);
+ return 0;
+ }), {});
+
+
+ auto res = args.parse();
+ uASSERT_EQUAL(0, res);
+ uASSERT_EQUAL(2u, r.size());
+ uASSERT_EQUAL("input.txt"s, r[0]);
+ uASSERT_EQUAL("output.txt"s, r[1]);
+ }
+
+ {
+ const char* argv[] = { "program", "-abco", "output.txt" };
+ int argc = sizeof(argv)/sizeof(*argv);
+
+ arg::Parser<std::string> args(argc, argv);
+
+ std::vector<std::string> r;
+ args.add('a', {}, std::function([&](){ r.push_back("a"); return 0;}), {});
+ args.add('b', {}, std::function([&](){ r.push_back("b"); return 0;}), {});
+ args.add('c', {}, std::function([&](){ r.push_back("c"); return 0;}), {});
+ args.add('o', {},
+ std::function([&](std::string input)
+ {
+ r.push_back(input);
+ return 0;
+ }), {});
+
+
+ auto res = args.parse();
+ uASSERT_EQUAL(0, res);
+ uASSERT_EQUAL(4u, r.size());
+ uASSERT_EQUAL("a"s, r[0]);
+ uASSERT_EQUAL("b"s, r[1]);
+ uASSERT_EQUAL("c"s, r[2]);
+ uASSERT_EQUAL("output.txt"s, r[3]);
+ }
+
+ {
+ const char* argv[] = { "program", "-abcooutput.txt" };
+ int argc = sizeof(argv)/sizeof(*argv);
+
+ arg::Parser<std::string> args(argc, argv);
+
+ std::vector<std::string> r;
+ args.add('a', {}, std::function([&](){ r.push_back("a"); return 0;}), {});
+ args.add('b', {}, std::function([&](){ r.push_back("b"); return 0;}), {});
+ args.add('c', {}, std::function([&](){ r.push_back("c"); return 0;}), {});
+ args.add('o', {},
+ std::function([&](std::string input)
+ {
+ r.push_back(input);
+ return 0;
+ }), {});
+
+
+ auto res = args.parse();
+ uASSERT_EQUAL(0, res);
+ uASSERT_EQUAL(4u, r.size());
+ uASSERT_EQUAL("a"s, r[0]);
+ uASSERT_EQUAL("b"s, r[1]);
+ uASSERT_EQUAL("c"s, r[2]);
+ uASSERT_EQUAL("output.txt"s, r[3]);
+ }
+
+ {
+ // Optional omitted
+ const char* argv[] = { "program", "-c" };
+ int argc = sizeof(argv)/sizeof(*argv);
+
+ arg::Parser<std::optional<std::string>> args(argc, argv);
+
+ std::vector<std::string> r;
+ args.add('c', {},
+ std::function([&](std::optional<std::string> c)
+ {
+ uASSERT(!c.has_value());
+ r.push_back("c");
+ return 0;
+ }), {});
+
+ auto res = args.parse();
+ uASSERT_EQUAL(0, res);
+ uASSERT_EQUAL(1u, r.size());
+ uASSERT_EQUAL("c"s, r[0]);
+ }
+
+ {
+ // Optional provided
+ const char* argv[] = { "program", "-cblue" };
+ int argc = sizeof(argv)/sizeof(*argv);
+
+ arg::Parser<std::optional<std::string>> args(argc, argv);
+
+ std::vector<std::string> r;
+ args.add('c', {},
+ std::function([&](std::optional<std::string> c)
+ {
+ uASSERT(c.has_value());
+ r.push_back(*c);
+ return 0;
+ }), {});
+
+ auto res = args.parse();
+ uASSERT_EQUAL(0, res);
+ uASSERT_EQUAL(1u, r.size());
+ uASSERT_EQUAL("blue"s, r[0]);
+ }
+
+ {
+ // Optional omitted (blue is a new argument)
+ const char* argv[] = { "program", "-c", "blue" };
+ int argc = sizeof(argv)/sizeof(*argv);
+
+ arg::Parser<std::optional<std::string>> args(argc, argv);
+
+ std::vector<std::string> r;
+ args.add('c', {},
+ std::function([&](std::optional<std::string> c)
+ {
+ uASSERT(!c.has_value());
+ r.push_back("c");
+ return 0;
+ }), {});
+ args.set_pos_cb(std::function([&](std::string_view pos)
+ {
+ r.push_back(std::string(pos));
+ return 0;
+ }));
+
+ auto res = args.parse();
+ uASSERT_EQUAL(0, res);
+ uASSERT_EQUAL(2u, r.size());
+ uASSERT_EQUAL("c"s, r[0]);
+ uASSERT_EQUAL("blue"s, r[1]);
+ }
+
+ {
+ // Two seperate flags
+ const char* argv[] = { "program", "-c", "-x" };
+ int argc = sizeof(argv)/sizeof(*argv);
+
+ arg::Parser<std::optional<std::string>> args(argc, argv);
+
+ std::vector<std::string> r;
+ args.add('x', {}, std::function([&](){ r.push_back("x"); return 0;}), {});
+ args.add('c', {},
+ std::function([&](std::optional<std::string> c)
+ {
+ uASSERT(!c.has_value());
+ r.push_back("c");
+ return 0;
+ }), {});
+
+ auto res = args.parse();
+ uASSERT_EQUAL(0, res);
+ uASSERT_EQUAL(2u, r.size());
+ uASSERT_EQUAL("c"s, r[0]);
+ uASSERT_EQUAL("x"s, r[1]);
+ }
+
+ {
+ // -c with argument "-x"
+ const char* argv[] = { "program", "-c-x" };
+ int argc = sizeof(argv)/sizeof(*argv);
+
+ arg::Parser<std::optional<std::string>> args(argc, argv);
+
+ std::vector<std::string> r;
+ args.add('x', {}, std::function([&](){ r.push_back("x"); return 0;}), {});
+ args.add('c', {},
+ std::function([&](std::optional<std::string> c)
+ {
+ uASSERT(c.has_value());
+ r.push_back(*c);
+ return 0;
+ }), {});
+
+ auto res = args.parse();
+ uASSERT_EQUAL(0, res);
+ uASSERT_EQUAL(1u, r.size());
+ uASSERT_EQUAL("-x"s, r[0]);
+ }
+
+ {
+ const char* argv[] = { "program", "-a", "-b", "foo", "bar" };
+ int argc = sizeof(argv)/sizeof(*argv);
+
+ arg::Parser<> args(argc, argv);
+
+ std::vector<std::string> r;
+ args.add('a', {}, std::function([&](){ r.push_back("a"); return 0;}), {});
+ args.add('b', {}, std::function([&](){ r.push_back("b"); return 0;}), {});
+ args.set_pos_cb(std::function([&](std::string_view pos)
+ {
+ r.push_back(std::string(pos));
+ return 0;
+ }));
+
+ auto res = args.parse();
+ uASSERT_EQUAL(0, res);
+ uASSERT_EQUAL(4u, r.size());
+ uASSERT_EQUAL("a"s, r[0]);
+ uASSERT_EQUAL("b"s, r[1]);
+ uASSERT_EQUAL("foo"s, r[2]);
+ uASSERT_EQUAL("bar"s, r[3]);
+ }
+
+ {
+ const char* argv[] = { "program", "-b", "-a", "foo", "bar" };
+ int argc = sizeof(argv)/sizeof(*argv);
+
+ arg::Parser<> args(argc, argv);
+
+ std::vector<std::string> r;
+ args.add('a', {}, std::function([&](){ r.push_back("a"); return 0;}), {});
+ args.add('b', {}, std::function([&](){ r.push_back("b"); return 0;}), {});
+ args.set_pos_cb(std::function([&](std::string_view pos)
+ {
+ r.push_back(std::string(pos));
+ return 0;
+ }));
+
+ auto res = args.parse();
+ uASSERT_EQUAL(0, res);
+ uASSERT_EQUAL(4u, r.size());
+ uASSERT_EQUAL("b"s, r[0]);
+ uASSERT_EQUAL("a"s, r[1]);
+ uASSERT_EQUAL("foo"s, r[2]);
+ uASSERT_EQUAL("bar"s, r[3]);
+ }
+
+ {
+ const char* argv[] = { "program", "-a", "foo", "-b", "bar" };
+ int argc = sizeof(argv)/sizeof(*argv);
+
+ arg::Parser<> args(argc, argv);
+
+ std::vector<std::string> r;
+ args.add('a', {}, std::function([&](){ r.push_back("a"); return 0;}), {});
+ args.add('b', {}, std::function([&](){ r.push_back("b"); return 0;}), {});
+ args.set_pos_cb(std::function([&](std::string_view pos)
+ {
+ r.push_back(std::string(pos));
+ return 0;
+ }));
+
+ auto res = args.parse();
+ uASSERT_EQUAL(0, res);
+ uASSERT_EQUAL(4u, r.size());
+ uASSERT_EQUAL("a"s, r[0]);
+ uASSERT_EQUAL("foo"s, r[1]);
+ uASSERT_EQUAL("b"s, r[2]);
+ uASSERT_EQUAL("bar"s, r[3]);
+ }
+
+ {
+ const char* argv[] = { "program", "foo", "-a", "-b", "bar" };
+ int argc = sizeof(argv)/sizeof(*argv);
+
+ arg::Parser<> args(argc, argv);
+
+ std::vector<std::string> r;
+ args.add('a', {}, std::function([&](){ r.push_back("a"); return 0;}), {});
+ args.add('b', {}, std::function([&](){ r.push_back("b"); return 0;}), {});
+ args.set_pos_cb(std::function([&](std::string_view pos)
+ {
+ r.push_back(std::string(pos));
+ return 0;
+ }));
+
+ auto res = args.parse();
+ uASSERT_EQUAL(0, res);
+ uASSERT_EQUAL(4u, r.size());
+ uASSERT_EQUAL("foo"s, r[0]);
+ uASSERT_EQUAL("a"s, r[1]);
+ uASSERT_EQUAL("b"s, r[2]);
+ uASSERT_EQUAL("bar"s, r[3]);
+ }
+
+ {
+ const char* argv[] = { "program", "foo", "bar", "-a", "-b" };
+ int argc = sizeof(argv)/sizeof(*argv);
+
+ arg::Parser<> args(argc, argv);
+
+ std::vector<std::string> r;
+ args.add('a', {}, std::function([&](){ r.push_back("a"); return 0;}), {});
+ args.add('b', {}, std::function([&](){ r.push_back("b"); return 0;}), {});
+ args.set_pos_cb(std::function([&](std::string_view pos)
+ {
+ r.push_back(std::string(pos));
+ return 0;
+ }));
+
+ auto res = args.parse();
+ uASSERT_EQUAL(0, res);
+ uASSERT_EQUAL(4u, r.size());
+ uASSERT_EQUAL("foo"s, r[0]);
+ uASSERT_EQUAL("bar"s, r[1]);
+ uASSERT_EQUAL("a"s, r[2]);
+ uASSERT_EQUAL("b"s, r[3]);
+ }
+
+ {
+ const char* argv[] = { "program", "-a", "-b", "--", "-x", "foo", "bar" };
+ int argc = sizeof(argv)/sizeof(*argv);
+
+ arg::Parser<> args(argc, argv);
+
+ std::vector<std::string> r;
+ args.add('a', {}, std::function([&](){ r.push_back("a"); return 0;}), {});
+ args.add('b', {}, std::function([&](){ r.push_back("b"); return 0;}), {});
+ args.set_pos_cb(std::function([&](std::string_view pos)
+ {
+ r.push_back(std::string(pos));
+ return 0;
+ }));
+
+ auto res = args.parse();
+ uASSERT_EQUAL(0, res);
+ uASSERT_EQUAL(5u, r.size());
+ uASSERT_EQUAL("a"s, r[0]);
+ uASSERT_EQUAL("b"s, r[1]);
+ uASSERT_EQUAL("-x"s, r[2]);
+ uASSERT_EQUAL("foo"s, r[3]);
+ uASSERT_EQUAL("bar"s, r[4]);
+ }
+
+ //
+ // Long options
+ //
+ {
+ const char* argv[] = { "program", "--sort" };
+ int argc = sizeof(argv)/sizeof(*argv);
+
+ arg::Parser<> args(argc, argv);
+
+ std::vector<std::string> r;
+ args.add({}, "--sort",
+ std::function([&](){ r.push_back("sort"); return 0;}), {});
+
+ auto res = args.parse();
+ uASSERT_EQUAL(0, res);
+ uASSERT_EQUAL(1u, r.size());
+ uASSERT_EQUAL("sort"s, r[0]);
+ }
+
+ {
+ const char* argv[] = { "program", "--no-sort" };
+ int argc = sizeof(argv)/sizeof(*argv);
+
+ arg::Parser<> args(argc, argv);
+
+ std::vector<std::string> r;
+ args.add({}, "--no-sort",
+ std::function([&](){ r.push_back("no-sort"); return 0;}), {});
+
+ auto res = args.parse();
+ uASSERT_EQUAL(0, res);
+ uASSERT_EQUAL(1u, r.size());
+ uASSERT_EQUAL("no-sort"s, r[0]);
+ }
+
+ {
+ const char* argv[] =
+ { "program", "--output", "output.txt", "--block-size", "1024" };
+ int argc = sizeof(argv)/sizeof(*argv);
+
+ arg::Parser<std::string, int> args(argc, argv);
+
+ std::vector<std::string> r;
+ args.add({}, "--output",
+ std::function([&](std::string output)
+ {
+ r.push_back(output);
+ return 0;
+ }), {});
+ args.add({}, "--block-size",
+ std::function([&](int block_size)
+ {
+ r.push_back("["s + std::to_string(block_size) + "]"s);
+ return 0;
+ }), {});
+
+ auto res = args.parse();
+ uASSERT_EQUAL(0, res);
+ uASSERT_EQUAL(2u, r.size());
+ uASSERT_EQUAL("output.txt"s, r[0]);
+ uASSERT_EQUAL("[1024]"s, r[1]);
+ }
+
+ {
+ const char* argv[] =
+ { "program", "--output=output.txt", "--block-size=1024" };
+ int argc = sizeof(argv)/sizeof(*argv);
+
+ arg::Parser<std::string, int> args(argc, argv);
+
+ std::vector<std::string> r;
+ args.add({}, "--output",
+ std::function([&](std::string output)
+ {
+ r.push_back(output);
+ return 0;
+ }), {});
+ args.add({}, "--block-size",
+ std::function([&](int block_size)
+ {
+ r.push_back("["s + std::to_string(block_size) + "]"s);
+ return 0;
+ }), {});
+
+ auto res = args.parse();
+ uASSERT_EQUAL(0, res);
+ uASSERT_EQUAL(2u, r.size());
+ uASSERT_EQUAL("output.txt"s, r[0]);
+ uASSERT_EQUAL("[1024]"s, r[1]);
+ }
+
+ {
+ const char* argv[] =
+ { "program", "--color", "--reverse" };
+ int argc = sizeof(argv)/sizeof(*argv);
+
+ arg::Parser<std::optional<std::string>> args(argc, argv);
+
+ std::vector<std::string> r;
+ args.add({}, "--color",
+ std::function([&](std::optional<std::string> color)
+ {
+ uASSERT(!color.has_value());
+ r.push_back("color");
+ return 0;
+ }), {});
+ args.add({}, "--reverse",
+ std::function([&]()
+ {
+ r.push_back("reverse");
+ return 0;
+ }), {});
+
+ auto res = args.parse();
+ uASSERT_EQUAL(0, res);
+ uASSERT_EQUAL(2u, r.size());
+ uASSERT_EQUAL("color"s, r[0]);
+ uASSERT_EQUAL("reverse"s, r[1]);
+ }
+
+ {
+ const char* argv[] =
+ { "program", "--color=never", "--reverse" };
+ int argc = sizeof(argv)/sizeof(*argv);
+
+ arg::Parser<std::optional<std::string>> args(argc, argv);
+
+ std::vector<std::string> r;
+ args.add({}, "--color",
+ std::function([&](std::optional<std::string> color)
+ {
+ uASSERT(color.has_value());
+ r.push_back(*color);
+ return 0;
+ }), {});
+ args.add({}, "--reverse",
+ std::function([&]()
+ {
+ r.push_back("reverse");
+ return 0;
+ }), {});
+
+ auto res = args.parse();
+ uASSERT_EQUAL(0, res);
+ uASSERT_EQUAL(2u, r.size());
+ uASSERT_EQUAL("never"s, r[0]);
+ uASSERT_EQUAL("reverse"s, r[1]);
+ }
+
+ }
+};
+
+// Registers the fixture into the 'registry'
+static ArgParserTest test;