fix(testing): test macros return a single node, so that we can use them in functions like (fun () (test:expect false))

Author: SuperFola

Testing.ark

@@ -197,11 +197,11 @@
 #     (test:expect (return_true) "return true"})
 # =end
 # @author https://github.com/SuperFola
-(macro test:expect (_cond ..._desc) {
+(macro test:expect (_cond ..._desc) {{
   (mut _cond_res ($as-is _cond))
   (if (!= true _cond_res)
     (testing:_report_error true _cond_res "true" ($repr _cond) _desc)
-    (testing:_report_success)) })
+    (testing:_report_success)) }})
 
 # @brief Compare two values that should be equal and generate a test case
 # @param _expr computed value to test
@@ -213,12 +213,12 @@
 #     (test:eq 5 (foo) "foo should return 5")})
 # =end
 # @author https://github.com/SuperFola
-(macro test:eq (_expr _expected ..._desc) {
+(macro test:eq (_expr _expected ..._desc) {{
   (mut _expected_res ($as-is _expected))
   (mut _expr_res ($as-is _expr))
   (if (= _expected_res _expr_res)
     (testing:_report_success)
-    (testing:_report_error _expected_res _expr_res ($repr _expected) ($repr _expr) _desc)) })
+    (testing:_report_error _expected_res _expr_res ($repr _expected) ($repr _expr) _desc)) }})
 
 # @brief Compare two values that should **not** be equal and generate a test case
 # @param _value tested value
@@ -229,12 +229,12 @@
 #     (test:neq 0 (my_function 1 2 3))})
 # =end
 # @author https://github.com/SuperFola
-(macro test:neq (_value _unexpected ..._desc) {
+(macro test:neq (_value _unexpected ..._desc) {{
   (mut _unexpected_res ($as-is _unexpected))
   (mut _value_res ($as-is _value))
   (if (!= _unexpected_res _value_res)
     (testing:_report_success)
-    (testing:_report_error _unexpected_res _value_res ($repr _unexpected) ($repr _value) _desc)) })
+    (testing:_report_error _unexpected_res _value_res ($repr _unexpected) ($repr _value) _desc)) }})
 
 # @brief Generate the code for a test suite
 # @details Create two variables: _name-output (a list: [successes, failures]) and _name-status (boolean, true on success)