Implement a simple config file parser

Tests/SimpleConf/WhitespaceBehaviour.cpp

@@ -0,0 +1,53 @@
+#include <catch2/catch_test_macros.hpp>
+#include <Garbage/SimpleConf.hpp>
+
+TEST_CASE("Check behavior when whitespace is involved")
+{
+    SECTION("Simple multi-line config")
+    {
+        using Required = Garbage::SimpleConf::Required;
+
+        std::string rawConfig =
+            "       key with    whitespace   =      and value too     \n"
+            "another=one\n"
+            "     and yet = another";
+
+        Garbage::SimpleConf config(std::move(rawConfig));
+
+        REQUIRE(config.Get<std::string, Required>("key with    whitespace") == "and value too");
+        REQUIRE(config.Get<std::string, Required>("another") == "one");
+        REQUIRE(config.Get<std::string, Required>("and yet") == "another");
+    }
+
+    SECTION("Deal with CRLF correctly")
+    {
+        using Required = Garbage::SimpleConf::Required;
+
+        std::string rawConfig =
+            " simple key=simple value \r\n"
+            " another = one\r\n"
+            "  and one = more\r\n";
+
+        Garbage::SimpleConf config(std::move(rawConfig));
+
+        REQUIRE(config.Get<std::string, Required>("simple key") == "simple value");
+        REQUIRE(config.Get<std::string, Required>("another") == "one");
+        REQUIRE(config.Get<std::string, Required>("and one") == "more");
+    }
+
+    SECTION("Weirder whitespace shenanigans")
+    {
+        using Required = Garbage::SimpleConf::Required;
+
+        std::string rawConfig =
+            "let's+start_simple=with some\tbasics\n"
+            "\t\tnow we get \tsome=\t \tweirder\tstuff\r\n"
+            "\t\tinsa+nity\twith\t\t=\t  white \t space \t\t";
+
+        Garbage::SimpleConf config(std::move(rawConfig));
+
+        REQUIRE(config.Get<std::string, Required>("let's+start_simple") == "with some\tbasics");
+        REQUIRE(config.Get<std::string, Required>("now we get \tsome") == "weirder\tstuff");
+        REQUIRE(config.Get<std::string, Required>("insa+nity\twith") == "white \t space");
+    }
+}