diff --git a/include/continuable/continuable-result.hpp b/include/continuable/continuable-result.hpp
index bd48cbe..c8e1477 100644
--- a/include/continuable/continuable-result.hpp
+++ b/include/continuable/continuable-result.hpp
@@ -114,8 +114,8 @@ public:
   }
   explicit result(exception_t exception) : variant_(std::move(exception)) {
   }
-  explicit result(empty_result){};
-  explicit result(exceptional_result exceptional_result)
+  result(empty_result){};
+  result(exceptional_result exceptional_result)
       : variant_(std::move(exceptional_result.get_exception())) {
   }
 
diff --git a/include/continuable/detail/core/base.hpp b/include/continuable/detail/core/base.hpp
index faf83a0..6b22a90 100644
--- a/include/continuable/detail/core/base.hpp
+++ b/include/continuable/detail/core/base.hpp
@@ -220,6 +220,8 @@ template <typename Hint>
 auto invoker_of(Hint, traits::identity<empty_result>) {
   return make_invoker(
       [](auto&& callback, auto&& next_callback, auto&&... args) {
+        util::unused(callback, next_callback, args...);
+        // TODO
         /*CONTINUABLE_BLOCK_TRY_BEGIN
           util::partial_invoke(std::forward<decltype(callback)>(callback),
                                std::forward<decltype(args)>(args)...);
@@ -235,6 +237,8 @@ template <typename Hint>
 auto invoker_of(Hint, traits::identity<exceptional_result>) {
   return make_invoker(
       [](auto&& callback, auto&& next_callback, auto&&... args) {
+        util::unused(callback, next_callback, args...);
+        // TODO
         /*CONTINUABLE_BLOCK_TRY_BEGIN
         util::partial_invoke(std::forward<decltype(callback)>(callback),
         std::forward<decltype(args)>(args)...);
@@ -250,6 +254,8 @@ template <typename Hint, typename... Args>
 auto invoker_of(Hint, traits::identity<result<Args...>>) {
   return make_invoker(
       [](auto&& callback, auto&& next_callback, auto&&... args) {
+        util::unused(callback, next_callback, args...);
+        // TODO
         /*CONTINUABLE_BLOCK_TRY_BEGIN
         util::partial_invoke(std::forward<decltype(callback)>(callback),
         std::forward<decltype(args)>(args)...);
diff --git a/test/unit-test/multi/test-continuable-base-multipath.cpp b/test/unit-test/multi/test-continuable-base-multipath.cpp
index 8b05d01..210860e 100644
--- a/test/unit-test/multi/test-continuable-base-multipath.cpp
+++ b/test/unit-test/multi/test-continuable-base-multipath.cpp
@@ -23,8 +23,83 @@
 
 #include <test-continuable.hpp>
 
-TYPED_TEST(single_dimension_tests, are_recoverable) {
-  /*EXPECT_ASYNC_RESULT(this->supply().then([] () -> cti::expected<> {
-    return; // void
-  }));*/
+using namespace cti;
+
+static int const CANARY = 382947;
+
+TYPED_TEST(single_dimension_tests, multipath_result_is_forwardable) {
+  EXPECT_ASYNC_RESULT(this->supply().then([](auto&&... canaries) -> result<> {
+    //
+    return make_result(std::forward<decltype(canaries)>(canaries)...);
+  }));
+
+  EXPECT_ASYNC_RESULT(
+      this->supply(CANARY).then([](auto&&... canaries) -> result<int> {
+        //
+        return make_result(std::forward<decltype(canaries)>(canaries)...);
+      }),
+      CANARY);
+
+  EXPECT_ASYNC_RESULT(
+      this->supply(1, CANARY, 3)
+          .then([](auto&&... canaries) -> result<int, int, int> {
+            //
+            return make_result(std::forward<decltype(canaries)>(canaries)...);
+          }),
+      1, CANARY, 3);
+}
+
+TYPED_TEST(single_dimension_tests, multipath_result_is_throwable) {
+  ASSERT_ASYNC_EXCEPTION_COMPLETION(
+      this->supply().then([]() -> exceptional_result {
+        //
+        return make_exceptional_result(supply_test_exception());
+      }));
+
+  ASSERT_ASYNC_EXCEPTION_COMPLETION(this->supply().then([]() -> result<> {
+    //
+    return make_exceptional_result(supply_test_exception());
+  }));
+}
+
+TYPED_TEST(single_dimension_tests, multipath_result_is_cancelable) {
+  ASSERT_ASYNC_INCOMPLETION(this->supply().then([]() -> empty_result {
+    //
+    return make_empty_result();
+  }));
+
+  ASSERT_ASYNC_INCOMPLETION(this->supply().then([]() -> result<> {
+    //
+    return make_empty_result();
+  }));
+}
+
+TYPED_TEST(single_dimension_tests, multipath_exception_is_recoverable) {
+  /*EXPECT_ASYNC_RESULT(this->supply_exception(supply_test_exception())
+                          .fail([](exception_t) -> result<> {
+                            //
+                            return make_result();
+                          }));
+
+  EXPECT_ASYNC_RESULT(this->supply_exception(supply_test_exception())
+                          .fail([](exception_t) -> result<int> {
+                            //
+                            return make_result(CANARY);
+                          }),
+                      CANARY);
+
+  EXPECT_ASYNC_RESULT(this->supply_exception(supply_test_exception())
+                          .fail([](exception_t) -> result<int, int, int> {
+                            //
+                            return make_result(1, CANARY, 3);
+                          }),
+                      1, CANARY, 3);*/
+}
+
+TYPED_TEST(single_dimension_tests, multipath_exception_is_forwardable) {
+  // TODO
+}
+
+TYPED_TEST(single_dimension_tests, multipath_exception_is_cancelable) {
+  // TODO
 }
diff --git a/test/unit-test/single/test-continuable-result.cpp b/test/unit-test/single/test-continuable-result.cpp
index 696c894..6aa80f2 100644
--- a/test/unit-test/single/test-continuable-result.cpp
+++ b/test/unit-test/single/test-continuable-result.cpp
@@ -80,7 +80,7 @@ TYPED_TEST(result_all_tests, can_carry_errors) {
   }
 
   {
-    TypeParam e(exception_t{});
+    TypeParam e(supply_test_exception());
 
     EXPECT_FALSE(bool(e));
     EXPECT_FALSE(e.is_value());
@@ -104,7 +104,7 @@ TYPED_TEST(result_all_tests, is_move_constructible) {
   }
 
   {
-    TypeParam e(TypeParam(exception_t{}));
+    TypeParam e(TypeParam(supply_test_exception()));
     EXPECT_FALSE(bool(e));
     EXPECT_FALSE(e.is_value());
     EXPECT_TRUE(e.is_exception());
@@ -123,7 +123,7 @@ TYPED_TEST(result_all_tests, is_value_move_assignable) {
 }
 
 TYPED_TEST(result_all_tests, is_error_move_assignable) {
-  TypeParam old(exception_t{});
+  TypeParam old(supply_test_exception());
   TypeParam e;
   e = std::move(old);
 
@@ -144,7 +144,7 @@ TEST(result_copyable_tests, is_copy_constructible) {
   }
 
   {
-    copyable_type const e_old(exception_t{});
+    copyable_type const e_old(supply_test_exception());
     copyable_type e(e_old);
 
     EXPECT_FALSE(bool(e));
@@ -166,7 +166,7 @@ TEST(result_copyable_tests, is_copy_assignable) {
   }
 
   {
-    copyable_type const e_old(exception_t{});
+    copyable_type const e_old(supply_test_exception());
     copyable_type e;
     e = e_old;
 
@@ -177,7 +177,7 @@ TEST(result_copyable_tests, is_copy_assignable) {
 }
 
 TYPED_TEST(result_all_tests, is_constructible_from_error_helper) {
-  cti::exceptional_result e1(exception_t{});
+  cti::exceptional_result e1(supply_test_exception());
   { auto e2 = e1; }
   auto e2 = std::move(e1);
 
@@ -189,7 +189,7 @@ TYPED_TEST(result_all_tests, is_constructible_from_error_helper) {
 }
 
 TYPED_TEST(result_all_tests, is_assignable_from_error_helper) {
-  cti::exceptional_result e1(exception_t{});
+  cti::exceptional_result e1(supply_test_exception());
   { auto e2 = e1; }
   auto e2 = std::move(e1);
 
diff --git a/test/unit-test/test-continuable.hpp b/test/unit-test/test-continuable.hpp
index ba78b67..89f5bdd 100644
--- a/test/unit-test/test-continuable.hpp
+++ b/test/unit-test/test-continuable.hpp
@@ -267,7 +267,7 @@ struct test_exception : std::exception {
 
 test_exception get_test_exception_proto();
 
-inline auto supply_test_exception() {
+inline std::exception_ptr supply_test_exception() {
   try {
     throw get_test_exception_proto();
   } catch (...) {