Add few tests

Author: Yaraslaut

test/CMakeLists.txt

@@ -1,3 +1,4 @@
 target_sources(rsltest_test PRIVATE 
-    always_passes.cpp 
-)
+    always_passes.cpp
+    discover.cpp
+)

test/discover.cpp

@@ -0,0 +1,35 @@
+#include <rsl/test>
+#include <tuple>
+
+namespace test_discovery
+{
+    int called = 0;
+    [[= rsl::test]]
+    void test_called()
+    {
+        ++called;
+        ASSERT(true);
+    }
+
+    void test_not_called()
+    {
+        --called;
+        ASSERT(false);
+    }
+
+    [[= rsl::test]]
+    [[= rsl::rename("renamed_test")]]
+    void ensure_called()
+    {
+        ASSERT(called == 1);
+    }
+
+
+    [[= rsl::test]]
+    [[=rsl::params({{'a', 10}, {'c', 12}})]]
+    void test_with_params(char foo, int bar){
+        ASSERT(bar > 5);
+        ASSERT(foo != 'x');
+    };
+
+} // namespace test_discovery