doc(uml): class diagram for recommended use case

doc/uml/class-diagram.md

@@ -3,24 +3,37 @@ Julienne Unit Testing Classes
 ```mermaid
 classDiagram
 
-class string_t
-class test_t
-class test_result_t
-class test_description_t
-class test_diagnosis_t
-class vector_test_description_t
+test_t --> test_result_t : produces
+test_description_t --> test_diagnosis_t : "uses to construct test_result_t"
+test_result_t --> test_diagnosis_t : "accepts as constructor argument"
 
 class test_t{
   <<abstract>>
-    + subject() character
-    + results() test_result_t
-    + report()
+    + subject() character *
+    + results() test_result_t *
+    + report(passes : integer, tests : integer)
 }
-class vector_test_description_t{
-  <<abstract>>
-    - description_vector_ : string_t
-    - vector_function_strategy_ : vector_function_strategy_t
-    + vector_function() string_t
+
+class test_result_t{
+    - description_ : character
+    - diagnostics_ : character
+    - passed : logical
+    + test_result_t(description : character, passed : test_diagnosis_t) test_result_t
+    + characterize() : character
+    + description_contains(character) : logical
+    + passed() : logical
 }
 
-vector_test_description_t o-- string_t
+class test_diagnosis_t{
+    - test_passed_ : logical
+    - diagnostics_string_ : character
+    + test_diagnosis_t(test_passed : logical, diagnostics_string : character) test_diagnosis_t
+}
+
+class test_description_t{
+    - description_ : character
+    - diagnosis_function : procecure(diagnosis_function_i), pointer
+    + test_description_t(description : character, diagnosis_function : procedure(diagnosis_function_i))
+    + run() test_result_t
+    + contains_text(character) logical
+}