first commit

test/CMakeLists.txt

@@ -0,0 +1,32 @@
+macro(add_args tgt)
+target_compile_options(
+  ${tgt}
+  PUBLIC
+    -Wall;
+    -Wextra;
+    -Wpedantic;
+    -Wcast-align;
+    -Wdisabled-optimization;
+    -Winit-self;
+    -Wlogical-op;
+    -Wmissing-include-dirs;
+    -Woverloaded-virtual;
+    -Wpointer-arith;
+    -Wshadow;
+    -Wstrict-aliasing;
+    -Wswitch-enum;
+    -Wundef;
+    -Wvla;
+    -Wformat=2;
+)
+endmacro()
+
+
+add_executable(test_all test_main.cpp
+  test_argparse.cpp
+)
+add_args(test_all)
+target_include_directories(test_all SYSTEM PUBLIC ${CMAKE_CURRENT_SOURCE_DIR}/../include)
+target_include_directories(test_all SYSTEM PUBLIC ${CMAKE_CURRENT_SOURCE_DIR}/../thirdparty)
+add_test(NAME test_all COMMAND test_all -a)
+

test/test_argparse.cpp

@@ -0,0 +1,132 @@
+#include "catch2/catch.hpp"
+
+#include <iostream>
+
+#include "argparse/argparse.hpp"
+
+TEST_CASE("argparse") {
+
+  SECTION("types") {
+    char *argv[] = {
+        "some-exe", "--campi", "--f", "10", "1.7", "1.8",
+        "--", // stop looking for options
+        "--a string",
+        "-6",
+    };
+    int argc = sizeof(argv) / sizeof(argv[0]);
+
+    Parser p;
+
+    bool campi = false;
+    size_t x;
+    double d;
+    float f;
+    int i;
+    std::string s;
+    p.add_flag(campi, "--campi");
+    p.add_positional(x);
+    p.add_positional(d);
+    p.add_positional(f);
+    p.add_positional(s);
+    p.add_positional(i);
+    REQUIRE(p.parse(argc, argv));
+
+    REQUIRE(campi == true);
+    REQUIRE(x == 10);
+    REQUIRE(d == 1.7);
+    REQUIRE(f == 1.8f);
+    REQUIRE(s == "--a string");
+    REQUIRE(i == -6);
+    REQUIRE(p.need_help() == false);
+
+    REQUIRE(argc == 2); // does not use --f or some-exe
+  }
+
+  SECTION("no args") {
+    char *argv[] = {nullptr};
+    int argc = sizeof(argv) / sizeof(argv[0]);
+    Parser p;
+    REQUIRE(p.parse(argc, argv));
+  }
+
+
+  SECTION("description") {
+    char *argv[] = {
+        "some-exe",
+    };
+    int argc = sizeof(argv) / sizeof(argv[0]);
+
+    Parser p("a test program");
+    REQUIRE(p.parse(argc, argv));
+  }
+
+  SECTION("skip-first") {
+    char *argv[] = {"some-exe"};
+    int argc = sizeof(argv) / sizeof(argv[0]);
+
+    Parser p;
+    p.no_unrecognized();
+    REQUIRE(p.parse(argc, argv));
+  }
+
+  SECTION("no-unrecognized") {
+    char *argv[] = {"some-exe", "-f"};
+    int argc = sizeof(argv) / sizeof(argv[0]);
+
+    Parser p;
+    p.no_unrecognized();
+    REQUIRE(false == p.parse(argc, argv));
+  }
+
+  SECTION("missing-reqd-posnl") {
+    char *argv[] = {"some-exe", "a"};
+    int argc = sizeof(argv) / sizeof(argv[0]);
+
+    std::string a;
+    std::string b;
+
+    Parser p;
+    p.add_positional(a)->required();
+    p.add_positional(b)->required();
+    REQUIRE(false == p.parse(argc, argv));
+  }
+
+  SECTION("-h") {
+    char *argv[] = {"some-exe", "-h"};
+    int argc = sizeof(argv) / sizeof(argv[0]);
+
+    std::string a;
+    std::string b;
+
+    Parser p;
+    REQUIRE(true == p.parse(argc, argv));
+    REQUIRE(p.need_help());
+
+    std::cerr << p.help() << "\n";
+  }
+
+  SECTION("--help") {
+    char *argv[] = {"some-exe", "--help"};
+    int argc = sizeof(argv) / sizeof(argv[0]);
+
+    std::string a;
+    std::string b;
+
+    Parser p;
+    REQUIRE(true == p.parse(argc, argv));
+    REQUIRE(p.need_help());
+  }
+
+  SECTION("--help") {
+    char *argv[] = {"some-exe", "--help", "--"};
+    int argc = sizeof(argv) / sizeof(argv[0]);
+
+    std::string a;
+    std::string b;
+
+    Parser p;
+    REQUIRE(true == p.parse(argc, argv));
+    REQUIRE(p.need_help());
+  }
+
+}

test/test_main.cpp

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+#define CATCH_CONFIG_MAIN  // This tells Catch to provide a main() - only do this in one cpp file
+#include "catch2/catch.hpp"