Add tests for array_map w/ flags

Signed-off-by: Alecto Irene Perez <[email protected]>

Author: codeinred

CMakeLists.txt

@@ -87,29 +87,32 @@ if(PROJECT_IS_TOP_LEVEL)
         https://github.com/fmtlib/fmt.git
         master)
 
-
-    # TODO: Write tests
-    # find_or_fetch(
-    #     Catch2
-    #     https://github.com/catchorg/catch2.git
-    #     devel
-    #     3.0.0)
+    find_or_fetch(
+        Catch2
+        https://github.com/catchorg/catch2.git
+        devel
+        3.0.0)
 
     FetchContent_MakeAvailable(${remote_dependencies})
 
+    add_executable(test_arglet
+        test/test_arglet.cpp)
+    target_link_libraries(test_arglet PRIVATE
+        arglet::arglet
+        fmt::fmt
+        Catch2::Catch2WithMain)
     add_source_dir(
         examples # the name of the directory
         arglet::arglet # Libraries to link against
         fmt::fmt)
 
     # Append places where Catch2 might be to the CMake Module path, so we can
     # use the function catch_discover_tests
-    # TODO: Write tests
-    # list(APPEND CMAKE_MODULE_PATH ${CMAKE_INSTALL_PREFIX}/lib/cmake/Catch2)
-    # list(APPEND CMAKE_MODULE_PATH ${catch2_SOURCE_DIR}/extras)
-    # include(CTest)
-    # include(Catch)
-    # catch_discover_tests(...)
+    list(APPEND CMAKE_MODULE_PATH ${CMAKE_INSTALL_PREFIX}/lib/cmake/Catch2)
+    list(APPEND CMAKE_MODULE_PATH ${catch2_SOURCE_DIR}/extras)
+    include(CTest)
+    include(Catch)
+    catch_discover_tests(test_arglet)
 endif()
 
 

test/test_arglet.cpp

@@ -0,0 +1,54 @@
+#include <arglet/flags.hpp>
+#include <catch2/catch_test_macros.hpp>
+#include <catch2/generators/catch_generators.hpp>
+
+TEST_CASE("Check that we can create flag maps") {
+    using namespace arglet::flags;
+    using tuplet::tuple;
+    using std::string_view_literals::operator""sv;
+
+    auto tup = tuple {
+        flag_arg<1, 1> {'d', "--dragon_fruit"},
+        flag_arg<1, 1> {'v', "--version"},
+        flag_arg<1, 1> {'e', "--eggplant"},
+        flag_arg<1, 1> {'b', "--banana"},
+        flag_arg<1, 1> {'c', "--cantelope"},
+        flag_arg<1, 1> {'h', "--help"},
+        flag_arg<0, 1> {{}, "--fondue"},
+        flag_arg<1, 1> {'a', "--apple"},
+        flag_arg<0, 1> {{}, "--glacier"},
+        flag_arg<1, 0> {'g', {}},
+    };
+
+    auto short_args = make_short_flag_map(tup);
+    auto long_args = make_long_flag_map(tup);
+
+    REQUIRE(
+        short_args.get_keys()
+        == std::array {'a', 'b', 'c', 'd', 'e', 'g', 'h', 'v'});
+
+    REQUIRE(
+        long_args.get_keys()
+        == std::array {
+            "--apple"sv,
+            "--banana"sv,
+            "--cantelope"sv,
+            "--dragon_fruit"sv,
+            "--eggplant"sv,
+            "--fondue"sv,
+            "--glacier"sv,
+            "--help"sv,
+            "--version"sv});
+
+    SECTION("Check that the search function works") {
+        for (char ch = 'a'; ch <= 'z'; ch++) {
+            auto idx = short_args.search(ch);
+
+            if (idx > 0) {
+                REQUIRE(ch >= short_args[idx].key);
+            } else {
+                REQUIRE(ch < short_args[1].key);
+            }
+        }
+    }
+}