diff --git a/lib/cmock_generator.rb b/lib/cmock_generator.rb
index 9e93f10..c74c58d 100644
--- a/lib/cmock_generator.rb
+++ b/lib/cmock_generator.rb
@@ -199,20 +199,22 @@ class CMockGenerator
     file << "#{function_mod_and_rettype} #{function[:name]}(#{args_string})\n"
     file << "{\n"
     file << "  UNITY_LINE_TYPE cmock_line = TEST_LINE_NUM;\n"
+    file << "  UNITY_SET_DETAIL(\"#{function[:name]}\");\n"
     file << "  CMOCK_#{function[:name]}_CALL_INSTANCE* cmock_call_instance = (CMOCK_#{function[:name]}_CALL_INSTANCE*)CMock_Guts_GetAddressFor(Mock.#{function[:name]}_CallInstance);\n"
     file << "  Mock.#{function[:name]}_CallInstance = CMock_Guts_MemNext(Mock.#{function[:name]}_CallInstance);\n"
     file << @plugins.run(:mock_implementation_precheck, function)
-    file << "  UNITY_TEST_ASSERT_NOT_NULL(cmock_call_instance, cmock_line, \"Function '#{function[:name]}' called more times than expected.\");\n"
+    file << "  UNITY_TEST_ASSERT_NOT_NULL(cmock_call_instance, cmock_line, CMockStringCalledMore);\n"
     file << "  cmock_line = cmock_call_instance->LineNumber;\n"
     if (@ordered)
       file << "  if (cmock_call_instance->CallOrder > ++GlobalVerifyOrder)\n"
-      file << "    UNITY_TEST_FAIL(cmock_line, \"Function '#{function[:name]}' called earlier than expected.\");\n"
+      file << "    UNITY_TEST_FAIL(cmock_line, CMockStringCalledEarly);\n"
       file << "  if (cmock_call_instance->CallOrder < GlobalVerifyOrder)\n"
-      file << "    UNITY_TEST_FAIL(cmock_line, \"Function '#{function[:name]}' called later than expected.\");\n"
-      # file << "  UNITY_TEST_ASSERT((cmock_call_instance->CallOrder == ++GlobalVerifyOrder), cmock_line, \"Out of order function calls. Function '#{function[:name]}'\");\n"
+      file << "    UNITY_TEST_FAIL(cmock_line, CMockStringCalledLate);\n"
+      # file << "  UNITY_TEST_ASSERT((cmock_call_instance->CallOrder == ++GlobalVerifyOrder), cmock_line, CMockStringCallOrder);\n"
     end
     return_type = function[:return][:const?] ? "(const #{function[:return][:type]})" : ((function[:return][:type] =~ /cmock/) ? "(#{function[:return][:type]})" : '')
     file << @plugins.run(:mock_implementation, function)
+    file << "  UNITY_CLR_DETAILS();\n"
     file << "  return #{return_type}cmock_call_instance->ReturnVal;\n" unless (function[:return][:void?])
     file << "}\n\n"
   end
diff --git a/lib/cmock_generator_plugin_cexception.rb b/lib/cmock_generator_plugin_cexception.rb
index c9e7e2f..abd9059 100644
--- a/lib/cmock_generator_plugin_cexception.rb
+++ b/lib/cmock_generator_plugin_cexception.rb
@@ -2,13 +2,13 @@
 #   CMock Project - Automatic Mock Generation for C
 #   Copyright (c) 2007 Mike Karlesky, Mark VanderVoord, Greg Williams
 #   [Released under MIT License. Please refer to license.txt for details]
-# ========================================== 
+# ==========================================
 
 class CMockGeneratorPluginCexception
 
   attr_reader :priority
   attr_reader :config, :utils
-  
+
   def initialize(config, utils)
     @config = config
     @utils = utils
@@ -22,7 +22,7 @@ class CMockGeneratorPluginCexception
   def instance_typedefs(function)
     "  CEXCEPTION_T ExceptionToThrow;\n"
   end
-  
+
   def mock_function_declarations(function)
     if (function[:args_string] == "void")
       return "#define #{function[:name]}_ExpectAndThrow(cmock_to_throw) #{function[:name]}_CMockExpectAndThrow(__LINE__, cmock_to_throw)\n" +
@@ -34,7 +34,8 @@ class CMockGeneratorPluginCexception
   end
 
   def mock_implementation(function)
-    "  if (cmock_call_instance->ExceptionToThrow != CEXCEPTION_NONE)\n  {\n" + 
+    "  if (cmock_call_instance->ExceptionToThrow != CEXCEPTION_NONE)\n  {\n" +
+    "    UNITY_CLR_DETAILS();\n" +
     "    Throw(cmock_call_instance->ExceptionToThrow);\n  }\n"
   end
 
diff --git a/lib/cmock_generator_plugin_expect.rb b/lib/cmock_generator_plugin_expect.rb
index 5359b10..ba59e78 100644
--- a/lib/cmock_generator_plugin_expect.rb
+++ b/lib/cmock_generator_plugin_expect.rb
@@ -2,7 +2,7 @@
 #   CMock Project - Automatic Mock Generation for C
 #   Copyright (c) 2007 Mike Karlesky, Mark VanderVoord, Greg Williams
 #   [Released under MIT License. Please refer to license.txt for details]
-# ========================================== 
+# ==========================================
 
 class CMockGeneratorPluginExpect
 
@@ -17,7 +17,7 @@ class CMockGeneratorPluginExpect
     @unity_helper = @utils.helpers[:unity_helper]
     @priority     = 5
   end
-  
+
   def instance_typedefs(function)
     lines = ""
     lines << "  #{function[:return][:type]} ReturnVal;\n"  unless (function[:return][:void?])
@@ -27,7 +27,7 @@ class CMockGeneratorPluginExpect
     end
     lines
   end
-  
+
   def mock_function_declarations(function)
     if (function[:args].empty?)
       if (function[:return][:void?])
@@ -37,7 +37,7 @@ class CMockGeneratorPluginExpect
         return "#define #{function[:name]}_ExpectAndReturn(cmock_retval) #{function[:name]}_CMockExpectAndReturn(__LINE__, cmock_retval)\n" +
                "void #{function[:name]}_CMockExpectAndReturn(UNITY_LINE_TYPE cmock_line, #{function[:return][:str]});\n"
       end
-    else        
+    else
       if (function[:return][:void?])
         return "#define #{function[:name]}_Expect(#{function[:args_call]}) #{function[:name]}_CMockExpect(__LINE__, #{function[:args_call]})\n" +
                "void #{function[:name]}_CMockExpect(UNITY_LINE_TYPE cmock_line, #{function[:args_string]});\n"
@@ -47,7 +47,7 @@ class CMockGeneratorPluginExpect
       end
     end
   end
-  
+
   def mock_implementation(function)
     lines = ""
     function[:args].each do |arg|
@@ -55,7 +55,7 @@ class CMockGeneratorPluginExpect
     end
     lines
   end
-  
+
   def mock_interfaces(function)
     lines = ""
     func_name = function[:name]
@@ -75,12 +75,14 @@ class CMockGeneratorPluginExpect
     lines << @utils.code_add_base_expectation(func_name)
     lines << @utils.code_call_argument_loader(function)
     lines << @utils.code_assign_argument_quickly("cmock_call_instance->ReturnVal", function[:return]) unless (function[:return][:void?])
+    lines << "  UNITY_CLR_DETAILS();\n"
     lines << "}\n\n"
   end
-  
+
   def mock_verify(function)
     func_name = function[:name]
-    "  UNITY_TEST_ASSERT(CMOCK_GUTS_NONE == Mock.#{func_name}_CallInstance, cmock_line, \"Function '#{func_name}' called less times than expected.\");\n"
+    "  UNITY_SET_DETAIL(\"#{function[:name]}\");\n" +
+    "  UNITY_TEST_ASSERT(CMOCK_GUTS_NONE == Mock.#{func_name}_CallInstance, cmock_line, CMockStringCalledLess);\n"
   end
 
 end
diff --git a/lib/cmock_generator_plugin_ignore.rb b/lib/cmock_generator_plugin_ignore.rb
index f031d72..26ad90f 100644
--- a/lib/cmock_generator_plugin_ignore.rb
+++ b/lib/cmock_generator_plugin_ignore.rb
@@ -35,6 +35,7 @@ class CMockGeneratorPluginIgnore
 
   def mock_implementation_precheck(function)
     lines = "  if (Mock.#{function[:name]}_IgnoreBool)\n  {\n"
+    lines << "    UNITY_CLR_DETAILS();\n"
     if (function[:return][:void?])
       lines << "    return;\n  }\n"
     else
diff --git a/lib/cmock_generator_plugin_ignore_arg.rb b/lib/cmock_generator_plugin_ignore_arg.rb
index 87ccbb2..4ea6350 100644
--- a/lib/cmock_generator_plugin_ignore_arg.rb
+++ b/lib/cmock_generator_plugin_ignore_arg.rb
@@ -35,7 +35,7 @@ class CMockGeneratorPluginIgnoreArg
       lines << "{\n"
       lines << "  CMOCK_#{func_name}_CALL_INSTANCE* cmock_call_instance = " +
         "(CMOCK_#{func_name}_CALL_INSTANCE*)CMock_Guts_GetAddressFor(CMock_Guts_MemEndOfChain(Mock.#{func_name}_CallInstance));\n"
-      lines << "  UNITY_TEST_ASSERT_NOT_NULL(cmock_call_instance, cmock_line, \"#{arg_name} IgnoreArg called before Expect on '#{func_name}'.\");\n"
+      lines << "  UNITY_TEST_ASSERT_NOT_NULL(cmock_call_instance, cmock_line, CMockStringIgnPreExp);\n"
       lines << "  cmock_call_instance->IgnoreArg_#{arg_name} = 1;\n"
       lines << "}\n\n"
     end
diff --git a/lib/cmock_generator_plugin_return_thru_ptr.rb b/lib/cmock_generator_plugin_return_thru_ptr.rb
index 716ec86..bf39922 100644
--- a/lib/cmock_generator_plugin_return_thru_ptr.rb
+++ b/lib/cmock_generator_plugin_return_thru_ptr.rb
@@ -46,7 +46,7 @@ class CMockGeneratorPluginReturnThruPtr
         lines << "{\n"
         lines << "  CMOCK_#{func_name}_CALL_INSTANCE* cmock_call_instance = " +
           "(CMOCK_#{func_name}_CALL_INSTANCE*)CMock_Guts_GetAddressFor(CMock_Guts_MemEndOfChain(Mock.#{func_name}_CallInstance));\n"
-        lines << "  UNITY_TEST_ASSERT_NOT_NULL(cmock_call_instance, cmock_line, \"#{arg_name} ReturnThruPtr called before Expect on '#{func_name}'.\");\n"
+        lines << "  UNITY_TEST_ASSERT_NOT_NULL(cmock_call_instance, cmock_line, CMockStringPtrPreExp);\n"
         lines << "  cmock_call_instance->ReturnThruPtr_#{arg_name}_Used = 1;\n"
         lines << "  cmock_call_instance->ReturnThruPtr_#{arg_name}_Val = #{arg_name};\n"
         lines << "  cmock_call_instance->ReturnThruPtr_#{arg_name}_Size = cmock_size;\n"
diff --git a/lib/cmock_generator_utils.rb b/lib/cmock_generator_utils.rb
index d24a243..584cb81 100644
--- a/lib/cmock_generator_utils.rb
+++ b/lib/cmock_generator_utils.rb
@@ -121,30 +121,31 @@ class CMockGeneratorUtils
     lines = ""
     lines << "  if (!#{ignore})\n" if @ignore_arg
     lines << "  {\n"
+    lines << "    UNITY_SET_DETAILS(\"#{function[:name]}\",\"#{arg_name}\");\n"
     case(unity_func)
       when "UNITY_TEST_ASSERT_EQUAL_MEMORY"
         c_type_local = c_type.gsub(/\*$/,'')
-        lines << "    UNITY_TEST_ASSERT_EQUAL_MEMORY((void*)(#{pre}#{expected}), (void*)(#{pre}#{arg_name}), sizeof(#{c_type_local}), cmock_line, \"#{unity_msg}\");\n"
+        lines << "    UNITY_TEST_ASSERT_EQUAL_MEMORY((void*)(#{pre}#{expected}), (void*)(#{pre}#{arg_name}), sizeof(#{c_type_local}), cmock_line, CMockStringMismatch);\n"
       when "UNITY_TEST_ASSERT_EQUAL_MEMORY_ARRAY"
         if (pre == '&')
-          lines << "    UNITY_TEST_ASSERT_EQUAL_MEMORY((void*)(#{pre}#{expected}), (void*)(#{pre}#{arg_name}), sizeof(#{c_type.sub('*','')}), cmock_line, \"#{unity_msg}\");\n"
+          lines << "    UNITY_TEST_ASSERT_EQUAL_MEMORY((void*)(#{pre}#{expected}), (void*)(#{pre}#{arg_name}), sizeof(#{c_type.sub('*','')}), cmock_line, CMockStringMismatch);\n"
         else
           lines << "    if (#{pre}#{expected} == NULL)\n"
-          lines << "      { UNITY_TEST_ASSERT_NULL(#{pre}#{arg_name}, cmock_line, \"Expected NULL. #{unity_msg}\"); }\n"
+          lines << "      { UNITY_TEST_ASSERT_NULL(#{pre}#{arg_name}, cmock_line, CMockStringExpNULL); }\n"
           lines << "    else\n"
-          lines << "      { UNITY_TEST_ASSERT_EQUAL_MEMORY((void*)(#{pre}#{expected}), (void*)(#{pre}#{arg_name}), sizeof(#{c_type.sub('*','')}), cmock_line, \"#{unity_msg}\"); }\n"
+          lines << "      { UNITY_TEST_ASSERT_EQUAL_MEMORY((void*)(#{pre}#{expected}), (void*)(#{pre}#{arg_name}), sizeof(#{c_type.sub('*','')}), cmock_line, CMockStringMismatch); }\n"
         end
       when /_ARRAY/
         if (pre == '&')
-          lines << "    #{unity_func}(#{pre}#{expected}, #{pre}#{arg_name}, 1, cmock_line, \"#{unity_msg}\");\n"
+          lines << "    #{unity_func}(#{pre}#{expected}, #{pre}#{arg_name}, 1, cmock_line, CMockStringMismatch);\n"
         else
           lines << "    if (#{pre}#{expected} == NULL)\n"
-          lines << "      { UNITY_TEST_ASSERT_NULL(#{pre}#{arg_name}, cmock_line, \"Expected NULL. #{unity_msg}\"); }\n"
+          lines << "      { UNITY_TEST_ASSERT_NULL(#{pre}#{arg_name}, cmock_line, CMockStringExpNULL); }\n"
           lines << "    else\n"
-          lines << "      { #{unity_func}(#{pre}#{expected}, #{pre}#{arg_name}, 1, cmock_line, \"#{unity_msg}\"); }\n"
+          lines << "      { #{unity_func}(#{pre}#{expected}, #{pre}#{arg_name}, 1, cmock_line, CMockStringMismatch); }\n"
         end
       else
-        lines << "    #{unity_func}(#{pre}#{expected}, #{pre}#{arg_name}, cmock_line, \"#{unity_msg}\");\n"
+        lines << "    #{unity_func}(#{pre}#{expected}, #{pre}#{arg_name}, cmock_line, CMockStringMismatch);\n"
     end
     lines << "  }\n"
     lines
@@ -156,30 +157,31 @@ class CMockGeneratorUtils
     lines = ""
     lines << "  if (!#{ignore})\n" if @ignore_arg
     lines << "  {\n"
+    lines << "    UNITY_SET_DETAILS(\"#{function[:name]}\",\"#{arg_name}\");\n"
     case(unity_func)
       when "UNITY_TEST_ASSERT_EQUAL_MEMORY"
         c_type_local = c_type.gsub(/\*$/,'')
-        lines << "    UNITY_TEST_ASSERT_EQUAL_MEMORY((void*)(#{pre}#{expected}), (void*)(#{pre}#{arg_name}), sizeof(#{c_type_local}), cmock_line, \"#{unity_msg}\");\n"
+        lines << "    UNITY_TEST_ASSERT_EQUAL_MEMORY((void*)(#{pre}#{expected}), (void*)(#{pre}#{arg_name}), sizeof(#{c_type_local}), cmock_line, CMockStringMismatch);\n"
       when "UNITY_TEST_ASSERT_EQUAL_MEMORY_ARRAY"
         if (pre == '&')
-          lines << "    UNITY_TEST_ASSERT_EQUAL_MEMORY((void*)(#{pre}#{expected}), (void*)(#{pre}#{arg_name}), sizeof(#{c_type.sub('*','')}), cmock_line, \"#{unity_msg}\");\n"
+          lines << "    UNITY_TEST_ASSERT_EQUAL_MEMORY((void*)(#{pre}#{expected}), (void*)(#{pre}#{arg_name}), sizeof(#{c_type.sub('*','')}), cmock_line, CMockStringMismatch);\n"
         else
           lines << "    if (#{pre}#{expected} == NULL)\n"
-          lines << "      { UNITY_TEST_ASSERT_NULL(#{pre}#{arg_name}, cmock_line, \"Expected NULL. #{unity_msg}\"); }\n"
+          lines << "      { UNITY_TEST_ASSERT_NULL(#{pre}#{arg_name}, cmock_line, CMockStringExpNULL); }\n"
           lines << "    else\n"
-          lines << "      { UNITY_TEST_ASSERT_EQUAL_MEMORY_ARRAY((void*)(#{pre}#{expected}), (void*)(#{pre}#{arg_name}), sizeof(#{c_type.sub('*','')}), #{depth_name}, cmock_line, \"#{unity_msg}\"); }\n"
+          lines << "      { UNITY_TEST_ASSERT_EQUAL_MEMORY_ARRAY((void*)(#{pre}#{expected}), (void*)(#{pre}#{arg_name}), sizeof(#{c_type.sub('*','')}), #{depth_name}, cmock_line, CMockStringMismatch); }\n"
         end
       when /_ARRAY/
         if (pre == '&')
-          lines << "    #{unity_func}(#{pre}#{expected}, #{pre}#{arg_name}, #{depth_name}, cmock_line, \"#{unity_msg}\");\n"
+          lines << "    #{unity_func}(#{pre}#{expected}, #{pre}#{arg_name}, #{depth_name}, cmock_line, CMockStringMismatch);\n"
         else
           lines << "    if (#{pre}#{expected} == NULL)\n"
-          lines << "      { UNITY_TEST_ASSERT_NULL(#{pre}#{arg_name}, cmock_line, \"Expected NULL. #{unity_msg}\"); }\n"
+          lines << "      { UNITY_TEST_ASSERT_NULL(#{pre}#{arg_name}, cmock_line, CMockStringExpNULL); }\n"
           lines << "    else\n"
-          lines << "      { #{unity_func}(#{pre}#{expected}, #{pre}#{arg_name}, #{depth_name}, cmock_line, \"#{unity_msg}\"); }\n"
+          lines << "      { #{unity_func}(#{pre}#{expected}, #{pre}#{arg_name}, #{depth_name}, cmock_line, CMockStringMismatch); }\n"
         end
       else
-        lines << "    #{unity_func}(#{pre}#{expected}, #{pre}#{arg_name}, cmock_line, \"#{unity_msg}\");\n"
+        lines << "    #{unity_func}(#{pre}#{expected}, #{pre}#{arg_name}, cmock_line, CMockStringMismatch);\n"
     end
     lines << "  }\n"
     lines
@@ -191,32 +193,33 @@ class CMockGeneratorUtils
     lines = ""
     lines << "  if (!#{ignore})\n" if @ignore_arg
     lines << "  {\n"
+    lines << "    UNITY_SET_DETAILS(\"#{function[:name]}\",\"#{arg_name}\");\n"
     case(unity_func)
       when "UNITY_TEST_ASSERT_EQUAL_MEMORY"
         c_type_local = c_type.gsub(/\*$/,'')
-        lines << "    UNITY_TEST_ASSERT_EQUAL_MEMORY((void*)(#{pre}#{expected}), (void*)(#{pre}#{arg_name}), sizeof(#{c_type_local}), cmock_line, \"#{unity_msg}\");\n"
+        lines << "    UNITY_TEST_ASSERT_EQUAL_MEMORY((void*)(#{pre}#{expected}), (void*)(#{pre}#{arg_name}), sizeof(#{c_type_local}), cmock_line, CMockStringMismatch);\n"
       when "UNITY_TEST_ASSERT_EQUAL_MEMORY_ARRAY"
         if (pre == '&')
-          lines << "    UNITY_TEST_ASSERT_EQUAL_MEMORY_ARRAY((void*)(#{pre}#{expected}), (void*)(#{pre}#{arg_name}), sizeof(#{c_type.sub('*','')}), #{depth_name}, cmock_line, \"#{unity_msg}\");\n"
+          lines << "    UNITY_TEST_ASSERT_EQUAL_MEMORY_ARRAY((void*)(#{pre}#{expected}), (void*)(#{pre}#{arg_name}), sizeof(#{c_type.sub('*','')}), #{depth_name}, cmock_line, CMockStringMismatch);\n"
         else
           lines << "    if (#{pre}#{expected} == NULL)\n"
-          lines << "      { UNITY_TEST_ASSERT_NULL(#{arg_name}, cmock_line, \"Expected NULL. #{unity_msg}\"); }\n"
-          lines << ((depth_name != 1) ? "    else if (#{depth_name} == 0)\n      { UNITY_TEST_ASSERT_EQUAL_PTR(#{pre}#{expected}, #{pre}#{arg_name}, cmock_line, \"#{unity_msg}\"); }\n" : "")
+          lines << "      { UNITY_TEST_ASSERT_NULL(#{arg_name}, cmock_line, CMockStringExpNULL); }\n"
+          lines << ((depth_name != 1) ? "    else if (#{depth_name} == 0)\n      { UNITY_TEST_ASSERT_EQUAL_PTR(#{pre}#{expected}, #{pre}#{arg_name}, cmock_line, CMockStringMismatch); }\n" : "")
           lines << "    else\n"
-          lines << "      { UNITY_TEST_ASSERT_EQUAL_MEMORY_ARRAY((void*)(#{pre}#{expected}), (void*)(#{pre}#{arg_name}), sizeof(#{c_type.sub('*','')}), #{depth_name}, cmock_line, \"#{unity_msg}\"); }\n"
+          lines << "      { UNITY_TEST_ASSERT_EQUAL_MEMORY_ARRAY((void*)(#{pre}#{expected}), (void*)(#{pre}#{arg_name}), sizeof(#{c_type.sub('*','')}), #{depth_name}, cmock_line, CMockStringMismatch); }\n"
         end
       when /_ARRAY/
         if (pre == '&')
-          lines << "    #{unity_func}(#{pre}#{expected}, #{pre}#{arg_name}, #{depth_name}, cmock_line, \"#{unity_msg}\");\n"
+          lines << "    #{unity_func}(#{pre}#{expected}, #{pre}#{arg_name}, #{depth_name}, cmock_line, CMockStringMismatch);\n"
         else
           lines << "    if (#{pre}#{expected} == NULL)\n"
-          lines << "      { UNITY_TEST_ASSERT_NULL(#{pre}#{arg_name}, cmock_line, \"Expected NULL. #{unity_msg}\"); }\n"
-          lines << ((depth_name != 1) ? "    else if (#{depth_name} == 0)\n      { UNITY_TEST_ASSERT_EQUAL_PTR(#{pre}#{expected}, #{pre}#{arg_name}, cmock_line, \"#{unity_msg}\"); }\n" : "")
+          lines << "      { UNITY_TEST_ASSERT_NULL(#{pre}#{arg_name}, cmock_line, CMockStringExpNULL); }\n"
+          lines << ((depth_name != 1) ? "    else if (#{depth_name} == 0)\n      { UNITY_TEST_ASSERT_EQUAL_PTR(#{pre}#{expected}, #{pre}#{arg_name}, cmock_line, CMockStringMismatch); }\n" : "")
           lines << "    else\n"
-          lines << "      { #{unity_func}(#{pre}#{expected}, #{pre}#{arg_name}, #{depth_name}, cmock_line, \"#{unity_msg}\"); }\n"
+          lines << "      { #{unity_func}(#{pre}#{expected}, #{pre}#{arg_name}, #{depth_name}, cmock_line, CMockStringMismatch); }\n"
         end
       else
-        lines << "    #{unity_func}(#{pre}#{expected}, #{pre}#{arg_name}, cmock_line, \"#{unity_msg}\");\n"
+        lines << "    #{unity_func}(#{pre}#{expected}, #{pre}#{arg_name}, cmock_line, CMockStringMismatch);\n"
     end
     lines << "  }\n"
     lines
diff --git a/src/cmock.c b/src/cmock.c
index 0aa720d..ba8a8bd 100644
--- a/src/cmock.c
+++ b/src/cmock.c
@@ -9,6 +9,15 @@
 
 //public constants to be used by mocks
 const char* CMockStringOutOfMemory = "CMock has run out of memory. Please allocate more.";
+const char* CMockStringCalledMore  = "Called more times than expected.";
+const char* CMockStringCalledLess  = "Called less times than expected.";
+const char* CMockStringCalledEarly = "Called earlier than expected.";
+const char* CMockStringCalledLate  = "Called later than expected.";
+const char* CMockStringCallOrder   = "Called out of order.";
+const char* CMockStringIgnPreExp   = "IgnoreArg called before Expect.";
+const char* CMockStringPtrPreExp   = "ReturnThruPtr called before Expect.";
+const char* CMockStringExpNULL     = "Expected NULL.";
+const char* CMockStringMismatch    = "Function called with unexpected argument value.";
 
 //private variables
 #ifdef CMOCK_MEM_DYNAMIC
diff --git a/src/cmock_internals.h b/src/cmock_internals.h
index 149e125..1100171 100644
--- a/src/cmock_internals.h
+++ b/src/cmock_internals.h
@@ -8,7 +8,16 @@
 #define CMOCK_FRAMEWORK_INTERNALS_H
 
 //These are constants that the generated mocks have access to
-const char* CMockStringOutOfMemory;
+extern const char* CMockStringOutOfMemory;
+extern const char* CMockStringCalledMore;
+extern const char* CMockStringCalledLess;
+extern const char* CMockStringCalledEarly;
+extern const char* CMockStringCalledLate;
+extern const char* CMockStringCallOrder;
+extern const char* CMockStringIgnPreExp;
+extern const char* CMockStringPtrPreExp;
+extern const char* CMockStringExpNULL;
+extern const char* CMockStringMismatch;
 
 //define CMOCK_MEM_DYNAMIC to grab memory as needed with malloc
 //when you do that, CMOCK_MEM_SIZE is used for incremental size instead of total
diff --git a/targets/clang_strict.yml b/targets/clang_strict.yml
index 3380e74..b552694 100644
--- a/targets/clang_strict.yml
+++ b/targets/clang_strict.yml
@@ -61,6 +61,7 @@ compiler:
   defines:
     prefix: '-D'
     items:
+      - CMOCK
       - 'UNITY_SUPPORT_64'
       - 'UNITY_POINTER_WIDTH=64'
   object_files:
diff --git a/targets/gcc.yml b/targets/gcc.yml
index 2375a73..13fff4c 100644
--- a/targets/gcc.yml
+++ b/targets/gcc.yml
@@ -29,6 +29,7 @@ compiler:
   defines:
     prefix: '-D'
     items:
+      - CMOCK
       - 'UNITY_SUPPORT_64'
   object_files:
     prefix: '-o'
diff --git a/targets/gcc_64.yml b/targets/gcc_64.yml
index 0ac60b2..354b9e9 100644
--- a/targets/gcc_64.yml
+++ b/targets/gcc_64.yml
@@ -28,6 +28,7 @@ compiler:
   defines:
     prefix: '-D'
     items:
+      - CMOCK
       - 'UNITY_SUPPORT_64'
       - 'UNITY_POINTER_WIDTH=64'
   object_files:
diff --git a/targets/gcc_tiny.yml b/targets/gcc_tiny.yml
index ccd492e..7965349 100644
--- a/targets/gcc_tiny.yml
+++ b/targets/gcc_tiny.yml
@@ -29,6 +29,7 @@ compiler:
   defines:
     prefix: '-D'
     items:
+      - CMOCK
       - 'CMOCK_MEM_STATIC'
       - 'CMOCK_MEM_SIZE=1024'
   object_files:
diff --git a/targets/iar_arm_v4.yml b/targets/iar_arm_v4.yml
index 6e88a74..dae46b9 100644
--- a/targets/iar_arm_v4.yml
+++ b/targets/iar_arm_v4.yml
@@ -46,6 +46,7 @@ compiler:
   defines:
     prefix: '-D'
     items:
+      - CMOCK
   object_files:
     prefix: '-o'
     extension: '.r79'
diff --git a/targets/iar_arm_v5.yml b/targets/iar_arm_v5.yml
index f5a8541..886faff 100644
--- a/targets/iar_arm_v5.yml
+++ b/targets/iar_arm_v5.yml
@@ -45,6 +45,7 @@ compiler:
   defines:
     prefix: '-D'
     items:
+      - CMOCK
   object_files:
     prefix: '-o'
     extension: '.r79'
diff --git a/test/system/test_interactions/doesnt_leave_details_behind.yml b/test/system/test_interactions/doesnt_leave_details_behind.yml
new file mode 100644
index 0000000..5f12292
--- /dev/null
+++ b/test/system/test_interactions/doesnt_leave_details_behind.yml
@@ -0,0 +1,272 @@
+---
+:cmock:
+  :enforce_strict_ordering: 1
+  :plugins:
+  - :array
+  - :cexception
+  - :ignore
+  - :callback
+  - :return_thru_ptr
+  - :ignore_arg
+  - :expect_any_args
+  :callback_after_arg_check: false
+  :callback_include_count: false
+  :treat_externs: :include
+
+:systest:
+  :types: |
+    typedef struct _POINT_T {
+      int x;
+      int y;
+    } POINT_T;
+
+  :mockable: |
+    #include  "CException.h"
+    extern void foo(POINT_T* a);
+    POINT_T* bar(void);
+    void no_args(void);
+
+  :source:
+    :header: |
+      #include "CException.h"
+      void function_a(void);
+      void function_b(void);
+      void function_c(void);
+      int function_d(void);
+      void function_e(void);
+
+    :code: |
+      void function_a(void)
+      {
+        foo(bar());
+        no_args();
+      }
+
+  :tests:
+    :common: |
+      #include "CException.h"
+      void setUp(void) {}
+      void tearDown(void) {}
+      void my_foo_callback(POINT_T* a) { TEST_ASSERT_EQUAL_INT(2, a->x); }
+
+    :units:
+    - :pass: TRUE
+      :should: 'just pass if we do not insert anything ugly into it'
+      :code: |
+        test()
+        {
+          bar_ExpectAndReturn(NULL);
+          foo_Expect(NULL);
+          no_args_Expect();
+
+          function_a();
+        }
+
+    - :pass: FALSE
+      :should: 'not contain mock details in failed assertion after an expect and return'
+      :verify_error: 'FAIL: Expected 1 Was 2. CustomFail'
+      :code: |
+        test()
+        {
+          bar_ExpectAndReturn(NULL);
+          TEST_ASSERT_EQUAL_INT_MESSAGE(1,2,"CustomFail");
+          foo_Expect(NULL);
+          no_args_Expect();
+
+          function_a();
+        }
+
+    - :pass: FALSE
+      :should: 'not contain mock details in failed assertion after an expect'
+      :verify_error: 'FAIL: Expected 1 Was 2. CustomFail'
+      :code: |
+        test()
+        {
+          bar_ExpectAndReturn(NULL);
+          foo_Expect(NULL);
+          TEST_ASSERT_EQUAL_INT_MESSAGE(1,2,"CustomFail");
+          no_args_Expect();
+
+          function_a();
+        }
+
+    - :pass: FALSE
+      :should: 'not contain mock details in failed assertion after throw expectation'
+      :verify_error: 'FAIL: Expected 1 Was 2. CustomFail'
+      :code: |
+        test()
+        {
+          CEXCEPTION_T e;
+
+          bar_ExpectAndReturn(NULL);
+          foo_Expect(NULL);
+          no_args_ExpectAndThrow(5);
+          TEST_ASSERT_EQUAL_INT_MESSAGE(1,2,"CustomFail");
+
+          Try { function_a(); } Catch(e) {}
+        }
+
+    - :pass: FALSE
+      :should: 'not contain mock details in failed assertion after a mock call'
+      :verify_error: 'FAIL: Expected 1 Was 2. CustomFail'
+      :code: |
+        test()
+        {
+          bar_ExpectAndReturn(NULL);
+          foo_Expect(NULL);
+          no_args_Expect();
+
+          function_a();
+
+          TEST_ASSERT_EQUAL_INT_MESSAGE(1,2,"CustomFail");
+        }
+
+    - :pass: FALSE
+      :should: 'not contain mock details in failed assertion after throw'
+      :verify_error: 'FAIL: Expected 1 Was 2. CustomFail'
+      :code: |
+        test()
+        {
+          CEXCEPTION_T e;
+
+          bar_ExpectAndReturn(NULL);
+          foo_Expect(NULL);
+          no_args_ExpectAndThrow(5);
+
+          Try { function_a(); } Catch(e) {}
+
+          TEST_ASSERT_EQUAL_INT_MESSAGE(1,2,"CustomFail");
+        }
+
+    - :pass: FALSE
+      :should: 'not contain mock details in failed assertion after ignore'
+      :verify_error: 'FAIL: Expected 1 Was 2. CustomFail'
+      :code: |
+        test()
+        {
+          bar_ExpectAndReturn(NULL);
+          foo_Expect(NULL);
+          no_args_Ignore();
+
+          TEST_ASSERT_EQUAL_INT_MESSAGE(1,2,"CustomFail");
+
+          function_a();
+        }
+
+    - :pass: FALSE
+      :should: 'not contain mock details in failed assertion after ignored mock'
+      :verify_error: 'FAIL: Expected 1 Was 2. CustomFail'
+      :code: |
+        test()
+        {
+          bar_ExpectAndReturn(NULL);
+          foo_Expect(NULL);
+          no_args_Ignore();
+
+          function_a();
+
+          TEST_ASSERT_EQUAL_INT_MESSAGE(1,2,"CustomFail");
+        }
+
+    - :pass: FALSE
+      :should: 'not contain mock details in failed assertion after callback setup'
+      :verify_error: 'FAIL: Expected 1 Was 2. CustomFail'
+      :code: |
+        test()
+        {
+          POINT_T pt = { 2, 2 };
+          bar_ExpectAndReturn(&pt);
+          foo_StubWithCallback(my_foo_callback);
+
+          TEST_ASSERT_EQUAL_INT_MESSAGE(1,2,"CustomFail");
+
+          no_args_Expect();
+
+          function_a();
+        }
+
+    - :pass: FALSE
+      :should: 'not contain mock details in failed assertion after mock with callback'
+      :verify_error: 'FAIL: Expected 1 Was 2. CustomFail'
+      :code: |
+        test()
+        {
+          POINT_T pt = { 2, 2 };
+          bar_ExpectAndReturn(&pt);
+          foo_StubWithCallback(my_foo_callback);
+          no_args_Expect();
+
+          function_a();
+
+          TEST_ASSERT_EQUAL_INT_MESSAGE(1,2,"CustomFail");
+        }
+
+    - :pass: FALSE
+      :should: 'not contain mock details in failed assertion after expect any args'
+      :verify_error: 'FAIL: Expected 1 Was 2. CustomFail'
+      :code: |
+        test()
+        {
+          POINT_T pt = { 2, 2 };
+          bar_ExpectAndReturn(&pt);
+          foo_ExpectAnyArgs();
+
+          TEST_ASSERT_EQUAL_INT_MESSAGE(1,2,"CustomFail");
+
+          no_args_Expect();
+
+          function_a();
+        }
+
+    - :pass: FALSE
+      :should: 'not contain mock details in failed assertion after mock which expected any args'
+      :verify_error: 'FAIL: Expected 1 Was 2. CustomFail'
+      :code: |
+        test()
+        {
+          POINT_T pt = { 2, 2 };
+          bar_ExpectAndReturn(&pt);
+          foo_ExpectAnyArgs();
+          no_args_Expect();
+
+          function_a();
+
+          TEST_ASSERT_EQUAL_INT_MESSAGE(1,2,"CustomFail");
+        }
+
+    - :pass: FALSE
+      :should: 'not contain mock details in failed assertion after ignored arg'
+      :verify_error: 'FAIL: Expected 1 Was 2. CustomFail'
+      :code: |
+        test()
+        {
+          POINT_T pt = { 2, 2 };
+          bar_ExpectAndReturn(&pt);
+          foo_Expect(NULL);
+          foo_IgnoreArg_a();
+
+          TEST_ASSERT_EQUAL_INT_MESSAGE(1,2,"CustomFail");
+
+          no_args_Expect();
+
+          function_a();
+        }
+
+    - :pass: FALSE
+      :should: 'not contain mock details in failed assertion after mock which ignored an arg'
+      :verify_error: 'FAIL: Expected 1 Was 2. CustomFail'
+      :code: |
+        test()
+        {
+          POINT_T pt = { 2, 2 };
+          bar_ExpectAndReturn(&pt);
+          foo_Expect(NULL);
+          foo_IgnoreArg_a();
+          no_args_Expect();
+
+          function_a();
+
+          TEST_ASSERT_EQUAL_INT_MESSAGE(1,2,"CustomFail");
+        }
+
+...
diff --git a/test/system/test_interactions/enforce_strict_ordering.yml b/test/system/test_interactions/enforce_strict_ordering.yml
index 61e2999..53d1a68 100644
--- a/test/system/test_interactions/enforce_strict_ordering.yml
+++ b/test/system/test_interactions/enforce_strict_ordering.yml
@@ -8,7 +8,7 @@
 :systest:
   :types: |
     #define UINT32 unsigned int
-    
+
     typedef signed int custom_type;
 
   :mockable: |
@@ -17,7 +17,7 @@
     UINT32 bar(custom_type b);
     void baz(custom_type c);
 
-  :source: 
+  :source:
     :header: |
       #include "CException.h"
       UINT32 function_a(int a, int b);
@@ -26,13 +26,13 @@
       void function_d(void);
 
     :code: |
-      UINT32 function_a(int a, int b)    
+      UINT32 function_a(int a, int b)
       {
         return foo((custom_type)a) + bar((custom_type)b);
-      }    
+      }
 
-      void function_b(void) 
-      { 
+      void function_b(void)
+      {
         baz((custom_type)1);
         foo((custom_type)2);
         bar((custom_type)3);
@@ -42,7 +42,7 @@
         baz((custom_type)7);
       }
 
-      void function_c(void) 
+      void function_c(void)
       {
         foo((custom_type)1);
         foo((custom_type)2);
@@ -50,7 +50,7 @@
         bar((custom_type)4);
         foo((custom_type)5);
       }
-      
+
       void function_d(void)
       {
         CEXCEPTION_T e;
@@ -70,13 +70,13 @@
         }
         Catch(e) {}
       }
-      
+
   :tests:
     :common: |
       #include "CException.h"
       void setUp(void) {}
       void tearDown(void) {}
-      
+
     :units:
     - :pass: TRUE
       :should: 'successfully exercise two simple ExpectAndReturn mock calls'
@@ -87,20 +87,20 @@
           bar_ExpectAndReturn((custom_type)2, 20);
           TEST_ASSERT_EQUAL(30, function_a(1, 2));
         }
-      
+
     - :pass: FALSE
       :should: 'fail because bar() is called but is not expected'
-      :verify_error: 'called more times than expected'
+      :verify_error: 'Called more times than expected'
       :code: |
         test()
         {
           foo_ExpectAndReturn((custom_type)1, 10);
           TEST_ASSERT_EQUAL(30, function_a(1, 2));
         }
-      
+
     - :pass: FALSE
       :should: 'fail because bar() is called twice but is expected once'
-      :verify_error: 'called less times than expected'
+      :verify_error: 'Called less times than expected'
       :code: |
         test()
         {
@@ -112,7 +112,7 @@
 
     - :pass: FALSE
       :should: 'fail because bar and foo called in reverse order'
-      :verify_error: 'called earlier than expected'
+      :verify_error: 'Called earlier than expected'
       :code: |
         test()
         {
@@ -185,7 +185,7 @@
           bar_ExpectAndReturn((custom_type)6, 10);
           function_b();
         }
-        
+
     - :pass: TRUE
       :should: 'pass when using cexception, as long as the order is right'
       :code: |
@@ -207,7 +207,7 @@
           foo_ExpectAndReturn((custom_type)3, 10);
           function_d();
         }
-        
+
     - :pass: TRUE
       :should: 'successfully handle back to back ExpectAndReturn setup and mock calls'
       :code: |
@@ -216,30 +216,30 @@
           foo_ExpectAndReturn((custom_type)1, 10);
           bar_ExpectAndReturn((custom_type)2, 20);
           TEST_ASSERT_EQUAL(30, function_a(1, 2));
-          
+
           foo_ExpectAndReturn((custom_type)3, 30);
           bar_ExpectAndReturn((custom_type)4, 40);
           TEST_ASSERT_EQUAL(70, function_a(3, 4));
-          
+
           foo_ExpectAndReturn((custom_type)1, 50);
           bar_ExpectAndReturn((custom_type)9, 60);
           TEST_ASSERT_EQUAL(110, function_a(1, 9));
         }
-      
+
     - :pass: FALSE
       :should: 'successfully catch errors during back to back ExpectAndReturn setup and mock calls'
-      :verify_error: 'called earlier than expected'
+      :verify_error: 'Called earlier than expected'
       :code: |
         test()
         {
           foo_ExpectAndReturn((custom_type)1, 10);
           bar_ExpectAndReturn((custom_type)2, 20);
           TEST_ASSERT_EQUAL(30, function_a(1, 2));
-          
+
           foo_ExpectAndReturn((custom_type)3, 30);
           bar_ExpectAndReturn((custom_type)4, 40);
           TEST_ASSERT_EQUAL(70, function_a(3, 4));
-          
+
           bar_ExpectAndReturn((custom_type)9, 60);
           foo_ExpectAndReturn((custom_type)1, 50);
           TEST_ASSERT_EQUAL(110, function_a(1, 9));
diff --git a/test/unit/cmock_generator_main_test.rb b/test/unit/cmock_generator_main_test.rb
index a38059e..8b2041d 100644
--- a/test/unit/cmock_generator_main_test.rb
+++ b/test/unit/cmock_generator_main_test.rb
@@ -440,13 +440,15 @@ describe CMockGenerator, "Verify CMockGenerator Module" do
     expected = [ "static int SupaFunction(uint32 sandwiches, const char* named)\n",
                  "{\n",
                  "  UNITY_LINE_TYPE cmock_line = TEST_LINE_NUM;\n",
+                 "  UNITY_SET_DETAIL(\"SupaFunction\");\n",
                  "  CMOCK_SupaFunction_CALL_INSTANCE* cmock_call_instance = (CMOCK_SupaFunction_CALL_INSTANCE*)CMock_Guts_GetAddressFor(Mock.SupaFunction_CallInstance);\n",
                  "  Mock.SupaFunction_CallInstance = CMock_Guts_MemNext(Mock.SupaFunction_CallInstance);\n",
                  "  uno",
-                 "  UNITY_TEST_ASSERT_NOT_NULL(cmock_call_instance, cmock_line, \"Function 'SupaFunction' called more times than expected.\");\n",
+                 "  UNITY_TEST_ASSERT_NOT_NULL(cmock_call_instance, cmock_line, CMockStringCalledMore);\n",
                  "  cmock_line = cmock_call_instance->LineNumber;\n",
                  "  dos",
                  "  tres",
+                 "  UNITY_CLR_DETAILS();\n",
                  "  return cmock_call_instance->ReturnVal;\n",
                  "}\n\n"
                ]
@@ -472,13 +474,15 @@ describe CMockGenerator, "Verify CMockGenerator Module" do
     expected = [ "int __stdcall SupaFunction(uint32 sandwiches, corn ...)\n",
                  "{\n",
                  "  UNITY_LINE_TYPE cmock_line = TEST_LINE_NUM;\n",
+                 "  UNITY_SET_DETAIL(\"SupaFunction\");\n",
                  "  CMOCK_SupaFunction_CALL_INSTANCE* cmock_call_instance = (CMOCK_SupaFunction_CALL_INSTANCE*)CMock_Guts_GetAddressFor(Mock.SupaFunction_CallInstance);\n",
                  "  Mock.SupaFunction_CallInstance = CMock_Guts_MemNext(Mock.SupaFunction_CallInstance);\n",
                  "  uno",
-                 "  UNITY_TEST_ASSERT_NOT_NULL(cmock_call_instance, cmock_line, \"Function 'SupaFunction' called more times than expected.\");\n",
+                 "  UNITY_TEST_ASSERT_NOT_NULL(cmock_call_instance, cmock_line, CMockStringCalledMore);\n",
                  "  cmock_line = cmock_call_instance->LineNumber;\n",
                  "  dos",
                  "  tres",
+                 "  UNITY_CLR_DETAILS();\n",
                  "  return cmock_call_instance->ReturnVal;\n",
                  "}\n\n"
                ]
diff --git a/test/unit/cmock_generator_plugin_cexception_test.rb b/test/unit/cmock_generator_plugin_cexception_test.rb
index 4a366e8..931d9c0 100644
--- a/test/unit/cmock_generator_plugin_cexception_test.rb
+++ b/test/unit/cmock_generator_plugin_cexception_test.rb
@@ -52,8 +52,11 @@ describe CMockGeneratorPluginCexception, "Verify CMockGeneratorPluginCexception
 
   it "add a mock implementation" do
     function = {:name => "Cherry", :args => [], :return => test_return[:void]}
-    expected = "  if (cmock_call_instance->ExceptionToThrow != CEXCEPTION_NONE)\n  {\n" +
-               "    Throw(cmock_call_instance->ExceptionToThrow);\n  }\n"
+    expected = "  if (cmock_call_instance->ExceptionToThrow != CEXCEPTION_NONE)\n" +
+               "  {\n" +
+               "    UNITY_CLR_DETAILS();\n" +
+               "    Throw(cmock_call_instance->ExceptionToThrow);\n" +
+               "  }\n"
     returned = @cmock_generator_plugin_cexception.mock_implementation(function)
     assert_equal(expected, returned)
   end
diff --git a/test/unit/cmock_generator_plugin_expect_test.rb b/test/unit/cmock_generator_plugin_expect_test.rb
index 7ed4f1a..e1a6529 100644
--- a/test/unit/cmock_generator_plugin_expect_test.rb
+++ b/test/unit/cmock_generator_plugin_expect_test.rb
@@ -142,6 +142,7 @@ describe CMockGeneratorPluginExpect, "Verify CMockGeneratorPluginExpect Module"
                 "{\n",
                 "mock_retval_0 ",
                 "mock_retval_1 ",
+                "  UNITY_CLR_DETAILS();\n",
                 "}\n\n"
                ].join
     returned = @cmock_generator_plugin_expect.mock_interfaces(function)
@@ -158,6 +159,7 @@ describe CMockGeneratorPluginExpect, "Verify CMockGeneratorPluginExpect Module"
                 "mock_retval_0 ",
                 "mock_retval_1 ",
                 "mock_retval_2",
+                "  UNITY_CLR_DETAILS();\n",
                 "}\n\n"
                ].join
     returned = @cmock_generator_plugin_expect.mock_interfaces(function)
@@ -174,6 +176,7 @@ describe CMockGeneratorPluginExpect, "Verify CMockGeneratorPluginExpect Module"
                 "mock_retval_0 ",
                 "mock_retval_1 ",
                 "mock_retval_2",
+                "  UNITY_CLR_DETAILS();\n",
                 "}\n\n"
                ].join
     returned = @cmock_generator_plugin_expect.mock_interfaces(function)
@@ -188,6 +191,7 @@ describe CMockGeneratorPluginExpect, "Verify CMockGeneratorPluginExpect Module"
                 "{\n",
                 "mock_retval_0 ",
                 "mock_retval_1 ",
+                "  UNITY_CLR_DETAILS();\n",
                 "}\n\n"
                ].join
     @cmock_generator_plugin_expect.ordered = true
@@ -197,7 +201,8 @@ describe CMockGeneratorPluginExpect, "Verify CMockGeneratorPluginExpect Module"
 
   it "add mock verify lines" do
     function = {:name => "Banana" }
-    expected = "  UNITY_TEST_ASSERT(CMOCK_GUTS_NONE == Mock.Banana_CallInstance, cmock_line, \"Function 'Banana' called less times than expected.\");\n"
+    expected = "  UNITY_SET_DETAIL(\"Banana\");\n" +
+               "  UNITY_TEST_ASSERT(CMOCK_GUTS_NONE == Mock.Banana_CallInstance, cmock_line, CMockStringCalledLess);\n"
     returned = @cmock_generator_plugin_expect.mock_verify(function)
     assert_equal(expected, returned)
   end
diff --git a/test/unit/cmock_generator_plugin_ignore_arg_test.rb b/test/unit/cmock_generator_plugin_ignore_arg_test.rb
index a6025d5..f5329d3 100644
--- a/test/unit/cmock_generator_plugin_ignore_arg_test.rb
+++ b/test/unit/cmock_generator_plugin_ignore_arg_test.rb
@@ -85,7 +85,7 @@ describe CMockGeneratorPluginIgnoreArg, "Verify CMockGeneratorPluginIgnoreArg Mo
       "{\n" +
       "  CMOCK_Pine_CALL_INSTANCE* cmock_call_instance = " +
       "(CMOCK_Pine_CALL_INSTANCE*)CMock_Guts_GetAddressFor(CMock_Guts_MemEndOfChain(Mock.Pine_CallInstance));\n" +
-      "  UNITY_TEST_ASSERT_NOT_NULL(cmock_call_instance, cmock_line, \"chicken IgnoreArg called before Expect on 'Pine'.\");\n" +
+      "  UNITY_TEST_ASSERT_NOT_NULL(cmock_call_instance, cmock_line, CMockStringIgnPreExp);\n" +
       "  cmock_call_instance->IgnoreArg_chicken = 1;\n" +
       "}\n\n" +
 
@@ -93,7 +93,7 @@ describe CMockGeneratorPluginIgnoreArg, "Verify CMockGeneratorPluginIgnoreArg Mo
       "{\n" +
       "  CMOCK_Pine_CALL_INSTANCE* cmock_call_instance = " +
       "(CMOCK_Pine_CALL_INSTANCE*)CMock_Guts_GetAddressFor(CMock_Guts_MemEndOfChain(Mock.Pine_CallInstance));\n" +
-      "  UNITY_TEST_ASSERT_NOT_NULL(cmock_call_instance, cmock_line, \"beef IgnoreArg called before Expect on 'Pine'.\");\n" +
+      "  UNITY_TEST_ASSERT_NOT_NULL(cmock_call_instance, cmock_line, CMockStringIgnPreExp);\n" +
       "  cmock_call_instance->IgnoreArg_beef = 1;\n" +
       "}\n\n" +
 
@@ -101,7 +101,7 @@ describe CMockGeneratorPluginIgnoreArg, "Verify CMockGeneratorPluginIgnoreArg Mo
       "{\n" +
       "  CMOCK_Pine_CALL_INSTANCE* cmock_call_instance = " +
       "(CMOCK_Pine_CALL_INSTANCE*)CMock_Guts_GetAddressFor(CMock_Guts_MemEndOfChain(Mock.Pine_CallInstance));\n" +
-      "  UNITY_TEST_ASSERT_NOT_NULL(cmock_call_instance, cmock_line, \"tofu IgnoreArg called before Expect on 'Pine'.\");\n" +
+      "  UNITY_TEST_ASSERT_NOT_NULL(cmock_call_instance, cmock_line, CMockStringIgnPreExp);\n" +
       "  cmock_call_instance->IgnoreArg_tofu = 1;\n" +
       "}\n\n"
 
diff --git a/test/unit/cmock_generator_plugin_ignore_test.rb b/test/unit/cmock_generator_plugin_ignore_test.rb
index 2692e35..2933b02 100644
--- a/test/unit/cmock_generator_plugin_ignore_test.rb
+++ b/test/unit/cmock_generator_plugin_ignore_test.rb
@@ -52,6 +52,7 @@ describe CMockGeneratorPluginIgnore, "Verify CMockGeneratorPluginIgnore Module"
     function = {:name => "Mold", :args_string => "void", :return => test_return[:void]}
     expected = ["  if (Mock.Mold_IgnoreBool)\n",
                 "  {\n",
+                "    UNITY_CLR_DETAILS();\n",
                 "    return;\n",
                 "  }\n"
                ].join
@@ -65,6 +66,7 @@ describe CMockGeneratorPluginIgnore, "Verify CMockGeneratorPluginIgnore Module"
     @utils.expect :code_assign_argument_quickly, '  mock_retval_0', ["Mock.Fungus_FinalReturn", retval]
     expected = ["  if (Mock.Fungus_IgnoreBool)\n",
                 "  {\n",
+                "    UNITY_CLR_DETAILS();\n",
                 "    if (cmock_call_instance == NULL)\n",
                 "      return Mock.Fungus_FinalReturn;\n",
                 "    mock_retval_0",
diff --git a/test/unit/cmock_generator_plugin_return_thru_ptr_test.rb b/test/unit/cmock_generator_plugin_return_thru_ptr_test.rb
index 839a087..7b93f00 100644
--- a/test/unit/cmock_generator_plugin_return_thru_ptr_test.rb
+++ b/test/unit/cmock_generator_plugin_return_thru_ptr_test.rb
@@ -108,7 +108,7 @@ describe CMockGeneratorPluginReturnThruPtr, "Verify CMockGeneratorPluginReturnTh
       "{\n" +
       "  CMOCK_Pine_CALL_INSTANCE* cmock_call_instance = " +
       "(CMOCK_Pine_CALL_INSTANCE*)CMock_Guts_GetAddressFor(CMock_Guts_MemEndOfChain(Mock.Pine_CallInstance));\n" +
-      "  UNITY_TEST_ASSERT_NOT_NULL(cmock_call_instance, cmock_line, \"tofu ReturnThruPtr called before Expect on 'Pine'.\");\n" +
+      "  UNITY_TEST_ASSERT_NOT_NULL(cmock_call_instance, cmock_line, CMockStringPtrPreExp);\n" +
       "  cmock_call_instance->ReturnThruPtr_tofu_Used = 1;\n" +
       "  cmock_call_instance->ReturnThruPtr_tofu_Val = tofu;\n" +
       "  cmock_call_instance->ReturnThruPtr_tofu_Size = cmock_size;\n" +
diff --git a/test/unit/cmock_generator_utils_test.rb b/test/unit/cmock_generator_utils_test.rb
index b832077..f62083b 100644
--- a/test/unit/cmock_generator_utils_test.rb
+++ b/test/unit/cmock_generator_utils_test.rb
@@ -204,7 +204,10 @@ describe CMockGeneratorUtils, "Verify CMockGeneratorUtils Module" do
   it 'handle a simple assert when requested' do
     function = { :name => 'Pear' }
     arg      = test_arg[:int]
-    expected = "  {\n    UNITY_TEST_ASSERT_EQUAL_INT(cmock_call_instance->Expected_MyInt, MyInt, cmock_line, \"Function 'Pear' called with unexpected value for argument 'MyInt'.\");\n  }\n"
+    expected = "  {\n" +
+               "    UNITY_SET_DETAILS(\"Pear\",\"MyInt\");\n" +
+               "    UNITY_TEST_ASSERT_EQUAL_INT(cmock_call_instance->Expected_MyInt, MyInt, cmock_line, CMockStringMismatch);\n" +
+               "  }\n"
     @unity_helper.expect :nil?, false
     @unity_helper.expect :get_helper, ['UNITY_TEST_ASSERT_EQUAL_INT', ''],  ['int']
     assert_equal(expected, @cmock_generator_utils_simple.code_verify_an_arg_expectation(function, arg))
@@ -213,14 +216,20 @@ describe CMockGeneratorUtils, "Verify CMockGeneratorUtils Module" do
   it 'handle a pointer comparison when configured to do so' do
     function = { :name => 'Pear' }
     arg      = test_arg[:int_ptr]
-    expected = "  {\n    UNITY_TEST_ASSERT_EQUAL_PTR(cmock_call_instance->Expected_MyIntPtr, MyIntPtr, cmock_line, \"Function 'Pear' called with unexpected value for argument 'MyIntPtr'.\");\n  }\n"
+    expected = "  {\n" +
+               "    UNITY_SET_DETAILS(\"Pear\",\"MyIntPtr\");\n" +
+               "    UNITY_TEST_ASSERT_EQUAL_PTR(cmock_call_instance->Expected_MyIntPtr, MyIntPtr, cmock_line, CMockStringMismatch);\n" +
+               "  }\n"
     assert_equal(expected, @cmock_generator_utils_simple.code_verify_an_arg_expectation(function, arg))
   end
 
   it 'handle const char as string compares ' do
     function = { :name => 'Pear' }
     arg      = test_arg[:string]
-    expected = "  {\n    UNITY_TEST_ASSERT_EQUAL_STRING(cmock_call_instance->Expected_MyStr, MyStr, cmock_line, \"Function 'Pear' called with unexpected value for argument 'MyStr'.\");\n  }\n"
+    expected = "  {\n" +
+               "    UNITY_SET_DETAILS(\"Pear\",\"MyStr\");\n" +
+               "    UNITY_TEST_ASSERT_EQUAL_STRING(cmock_call_instance->Expected_MyStr, MyStr, cmock_line, CMockStringMismatch);\n" +
+               "  }\n"
     @unity_helper.expect :nil?, false
     @unity_helper.expect :get_helper, ['UNITY_TEST_ASSERT_EQUAL_STRING',''], ['char*']
     assert_equal(expected, @cmock_generator_utils_simple.code_verify_an_arg_expectation(function, arg))
@@ -229,7 +238,10 @@ describe CMockGeneratorUtils, "Verify CMockGeneratorUtils Module" do
   it 'handle custom types as memory compares when we have no better way to do it' do
     function = { :name => 'Pear' }
     arg      = test_arg[:mytype]
-    expected = "  {\n    UNITY_TEST_ASSERT_EQUAL_MEMORY((void*)(&cmock_call_instance->Expected_MyMyType), (void*)(&MyMyType), sizeof(MY_TYPE), cmock_line, \"Function 'Pear' called with unexpected value for argument 'MyMyType'.\");\n  }\n"
+    expected = "  {\n" +
+               "    UNITY_SET_DETAILS(\"Pear\",\"MyMyType\");\n" +
+               "    UNITY_TEST_ASSERT_EQUAL_MEMORY((void*)(&cmock_call_instance->Expected_MyMyType), (void*)(&MyMyType), sizeof(MY_TYPE), cmock_line, CMockStringMismatch);\n" +
+               "  }\n"
     @unity_helper.expect :nil?, false
     @unity_helper.expect :get_helper, ['UNITY_TEST_ASSERT_EQUAL_MEMORY','&'], ['MY_TYPE']
     assert_equal(expected, @cmock_generator_utils_simple.code_verify_an_arg_expectation(function, arg))
@@ -238,7 +250,10 @@ describe CMockGeneratorUtils, "Verify CMockGeneratorUtils Module" do
   it 'handle custom types with custom handlers when available, even if they do not support the extra message' do
     function = { :name => 'Pear' }
     arg      = test_arg[:mytype]
-    expected = "  {\n    UNITY_TEST_ASSERT_EQUAL_MY_TYPE(cmock_call_instance->Expected_MyMyType, MyMyType, cmock_line, \"Function 'Pear' called with unexpected value for argument 'MyMyType'.\");\n  }\n"
+    expected = "  {\n" +
+               "    UNITY_SET_DETAILS(\"Pear\",\"MyMyType\");\n" +
+               "    UNITY_TEST_ASSERT_EQUAL_MY_TYPE(cmock_call_instance->Expected_MyMyType, MyMyType, cmock_line, CMockStringMismatch);\n" +
+               "  }\n"
     @unity_helper.expect :nil?, false
     @unity_helper.expect :get_helper, ['UNITY_TEST_ASSERT_EQUAL_MY_TYPE',''], ['MY_TYPE']
     assert_equal(expected, @cmock_generator_utils_simple.code_verify_an_arg_expectation(function, arg))
@@ -247,7 +262,10 @@ describe CMockGeneratorUtils, "Verify CMockGeneratorUtils Module" do
   it 'handle pointers to custom types with array handlers, even if the array extension is turned off' do
     function = { :name => 'Pear' }
     arg      = test_arg[:mytype]
-    expected = "  {\n    UNITY_TEST_ASSERT_EQUAL_MY_TYPE_ARRAY(&cmock_call_instance->Expected_MyMyType, &MyMyType, 1, cmock_line, \"Function 'Pear' called with unexpected value for argument 'MyMyType'.\");\n  }\n"
+    expected = "  {\n" +
+               "    UNITY_SET_DETAILS(\"Pear\",\"MyMyType\");\n" +
+               "    UNITY_TEST_ASSERT_EQUAL_MY_TYPE_ARRAY(&cmock_call_instance->Expected_MyMyType, &MyMyType, 1, cmock_line, CMockStringMismatch);\n" +
+               "  }\n"
     @unity_helper.expect :nil?, false
     @unity_helper.expect :get_helper, ['UNITY_TEST_ASSERT_EQUAL_MY_TYPE_ARRAY','&'], ['MY_TYPE']
     assert_equal(expected, @cmock_generator_utils_simple.code_verify_an_arg_expectation(function, arg))
@@ -256,7 +274,11 @@ describe CMockGeneratorUtils, "Verify CMockGeneratorUtils Module" do
   it 'handle a simple assert when requested with array plugin enabled' do
     function = { :name => 'Pear' }
     arg      = test_arg[:int]
-    expected = "  if (!cmock_call_instance->IgnoreArg_MyInt)\n  {\n    UNITY_TEST_ASSERT_EQUAL_INT(cmock_call_instance->Expected_MyInt, MyInt, cmock_line, \"Function 'Pear' called with unexpected value for argument 'MyInt'.\");\n  }\n"
+    expected = "  if (!cmock_call_instance->IgnoreArg_MyInt)\n" +
+               "  {\n" +
+               "    UNITY_SET_DETAILS(\"Pear\",\"MyInt\");\n" +
+               "    UNITY_TEST_ASSERT_EQUAL_INT(cmock_call_instance->Expected_MyInt, MyInt, cmock_line, CMockStringMismatch);\n" +
+               "  }\n"
     @unity_helper.expect :nil?, false
     @unity_helper.expect :get_helper, ['UNITY_TEST_ASSERT_EQUAL_INT',''], ['int']
     assert_equal(expected, @cmock_generator_utils_complex.code_verify_an_arg_expectation(function, arg))
@@ -267,12 +289,13 @@ describe CMockGeneratorUtils, "Verify CMockGeneratorUtils Module" do
     arg      = test_arg[:int_ptr]
     expected = "  if (!cmock_call_instance->IgnoreArg_MyIntPtr)\n" +
                "  {\n" +
+               "    UNITY_SET_DETAILS(\"Pear\",\"MyIntPtr\");\n" +
                "    if (cmock_call_instance->Expected_MyIntPtr == NULL)\n" +
-               "      { UNITY_TEST_ASSERT_NULL(MyIntPtr, cmock_line, \"Expected NULL. Function 'Pear' called with unexpected value for argument 'MyIntPtr'.\"); }\n" +
+               "      { UNITY_TEST_ASSERT_NULL(MyIntPtr, cmock_line, CMockStringExpNULL); }\n" +
                "    else if (cmock_call_instance->Expected_MyIntPtr_Depth == 0)\n" +
-               "      { UNITY_TEST_ASSERT_EQUAL_PTR(cmock_call_instance->Expected_MyIntPtr, MyIntPtr, cmock_line, \"Function 'Pear' called with unexpected value for argument 'MyIntPtr'.\"); }\n" +
+               "      { UNITY_TEST_ASSERT_EQUAL_PTR(cmock_call_instance->Expected_MyIntPtr, MyIntPtr, cmock_line, CMockStringMismatch); }\n" +
                "    else\n" +
-               "      { UNITY_TEST_ASSERT_EQUAL_INT_ARRAY(cmock_call_instance->Expected_MyIntPtr, MyIntPtr, cmock_call_instance->Expected_MyIntPtr_Depth, cmock_line, \"Function 'Pear' called with unexpected value for argument 'MyIntPtr'.\"); }\n" +
+               "      { UNITY_TEST_ASSERT_EQUAL_INT_ARRAY(cmock_call_instance->Expected_MyIntPtr, MyIntPtr, cmock_call_instance->Expected_MyIntPtr_Depth, cmock_line, CMockStringMismatch); }\n" +
                "  }\n"
     @unity_helper.expect :nil?, false
     @unity_helper.expect :get_helper, ['UNITY_TEST_ASSERT_EQUAL_INT_ARRAY',''], ['int*']
@@ -282,7 +305,11 @@ describe CMockGeneratorUtils, "Verify CMockGeneratorUtils Module" do
   it 'handle const char as string compares with array plugin enabled' do
     function = { :name => 'Pear' }
     arg      = test_arg[:string]
-    expected = "  if (!cmock_call_instance->IgnoreArg_MyStr)\n  {\n    UNITY_TEST_ASSERT_EQUAL_STRING(cmock_call_instance->Expected_MyStr, MyStr, cmock_line, \"Function 'Pear' called with unexpected value for argument 'MyStr'.\");\n  }\n"
+    expected = "  if (!cmock_call_instance->IgnoreArg_MyStr)\n" +
+               "  {\n" +
+               "    UNITY_SET_DETAILS(\"Pear\",\"MyStr\");\n" +
+               "    UNITY_TEST_ASSERT_EQUAL_STRING(cmock_call_instance->Expected_MyStr, MyStr, cmock_line, CMockStringMismatch);\n" +
+               "  }\n"
     @unity_helper.expect :nil?, false
     @unity_helper.expect :get_helper, ['UNITY_TEST_ASSERT_EQUAL_STRING',''], ['char*']
     assert_equal(expected, @cmock_generator_utils_complex.code_verify_an_arg_expectation(function, arg))
@@ -291,7 +318,14 @@ describe CMockGeneratorUtils, "Verify CMockGeneratorUtils Module" do
   it 'handle custom types as memory compares when we have no better way to do it with array plugin enabled' do
     function = { :name => 'Pear' }
     arg      = test_arg[:mytype]
-    expected = "  if (!cmock_call_instance->IgnoreArg_MyMyType)\n  {\n    if (cmock_call_instance->Expected_MyMyType == NULL)\n      { UNITY_TEST_ASSERT_NULL(MyMyType, cmock_line, \"Expected NULL. Function 'Pear' called with unexpected value for argument 'MyMyType'.\"); }\n    else\n      { UNITY_TEST_ASSERT_EQUAL_MEMORY_ARRAY((void*)(cmock_call_instance->Expected_MyMyType), (void*)(MyMyType), sizeof(MY_TYPE), 1, cmock_line, \"Function 'Pear' called with unexpected value for argument 'MyMyType'.\"); }\n  }\n"
+    expected = "  if (!cmock_call_instance->IgnoreArg_MyMyType)\n" +
+               "  {\n" +
+               "    UNITY_SET_DETAILS(\"Pear\",\"MyMyType\");\n" +
+               "    if (cmock_call_instance->Expected_MyMyType == NULL)\n" +
+               "      { UNITY_TEST_ASSERT_NULL(MyMyType, cmock_line, CMockStringExpNULL); }\n" +
+               "    else\n" +
+               "      { UNITY_TEST_ASSERT_EQUAL_MEMORY_ARRAY((void*)(cmock_call_instance->Expected_MyMyType), (void*)(MyMyType), sizeof(MY_TYPE), 1, cmock_line, CMockStringMismatch); }\n" +
+               "  }\n"
     @unity_helper.expect :nil?, false
     @unity_helper.expect :get_helper, ['UNITY_TEST_ASSERT_EQUAL_MEMORY_ARRAY', ''],  ['MY_TYPE']
     assert_equal(expected, @cmock_generator_utils_complex.code_verify_an_arg_expectation(function, arg))
@@ -300,7 +334,11 @@ describe CMockGeneratorUtils, "Verify CMockGeneratorUtils Module" do
   it 'handle custom types with custom handlers when available, even if they do not support the extra message with array plugin enabled' do
     function = { :name => 'Pear' }
     arg      = test_arg[:mytype]
-    expected = "  if (!cmock_call_instance->IgnoreArg_MyMyType)\n  {\n    UNITY_TEST_ASSERT_EQUAL_MY_TYPE(cmock_call_instance->Expected_MyMyType, MyMyType, cmock_line, \"Function 'Pear' called with unexpected value for argument 'MyMyType'.\");\n  }\n"
+    expected = "  if (!cmock_call_instance->IgnoreArg_MyMyType)\n" +
+               "  {\n" +
+               "    UNITY_SET_DETAILS(\"Pear\",\"MyMyType\");\n" +
+               "    UNITY_TEST_ASSERT_EQUAL_MY_TYPE(cmock_call_instance->Expected_MyMyType, MyMyType, cmock_line, CMockStringMismatch);\n" +
+               "  }\n"
     @unity_helper.expect :nil?, false
     @unity_helper.expect :get_helper, ['UNITY_TEST_ASSERT_EQUAL_MY_TYPE',  ''], ['MY_TYPE']
     assert_equal(expected, @cmock_generator_utils_complex.code_verify_an_arg_expectation(function, arg))
@@ -311,12 +349,13 @@ describe CMockGeneratorUtils, "Verify CMockGeneratorUtils Module" do
     arg      = test_arg[:mytype_ptr]
     expected = "  if (!cmock_call_instance->IgnoreArg_MyMyTypePtr)\n" +
                "  {\n" +
+               "    UNITY_SET_DETAILS(\"Pear\",\"MyMyTypePtr\");\n" +
                "    if (cmock_call_instance->Expected_MyMyTypePtr == NULL)\n" +
-               "      { UNITY_TEST_ASSERT_NULL(MyMyTypePtr, cmock_line, \"Expected NULL. Function 'Pear' called with unexpected value for argument 'MyMyTypePtr'.\"); }\n" +
+               "      { UNITY_TEST_ASSERT_NULL(MyMyTypePtr, cmock_line, CMockStringExpNULL); }\n" +
                "    else if (cmock_call_instance->Expected_MyMyTypePtr_Depth == 0)\n" +
-               "      { UNITY_TEST_ASSERT_EQUAL_PTR(cmock_call_instance->Expected_MyMyTypePtr, MyMyTypePtr, cmock_line, \"Function 'Pear' called with unexpected value for argument 'MyMyTypePtr'.\"); }\n" +
+               "      { UNITY_TEST_ASSERT_EQUAL_PTR(cmock_call_instance->Expected_MyMyTypePtr, MyMyTypePtr, cmock_line, CMockStringMismatch); }\n" +
                "    else\n" +
-               "      { UNITY_TEST_ASSERT_EQUAL_MY_TYPE_ARRAY(cmock_call_instance->Expected_MyMyTypePtr, MyMyTypePtr, cmock_call_instance->Expected_MyMyTypePtr_Depth, cmock_line, \"Function 'Pear' called with unexpected value for argument 'MyMyTypePtr'.\"); }\n" +
+               "      { UNITY_TEST_ASSERT_EQUAL_MY_TYPE_ARRAY(cmock_call_instance->Expected_MyMyTypePtr, MyMyTypePtr, cmock_call_instance->Expected_MyMyTypePtr_Depth, cmock_line, CMockStringMismatch); }\n" +
                "  }\n"
     @unity_helper.expect :nil?, false
     @unity_helper.expect :get_helper, ['UNITY_TEST_ASSERT_EQUAL_MY_TYPE_ARRAY', ''], ['MY_TYPE*']
@@ -326,7 +365,11 @@ describe CMockGeneratorUtils, "Verify CMockGeneratorUtils Module" do
   it 'handle custom types with array handlers when array plugin is enabled for non-array types' do
     function = { :name => 'Pear' }
     arg      = test_arg[:mytype]
-    expected = "  if (!cmock_call_instance->IgnoreArg_MyMyType)\n  {\n    UNITY_TEST_ASSERT_EQUAL_MY_TYPE_ARRAY(&cmock_call_instance->Expected_MyMyType, &MyMyType, 1, cmock_line, \"Function 'Pear' called with unexpected value for argument 'MyMyType'.\");\n  }\n"
+    expected = "  if (!cmock_call_instance->IgnoreArg_MyMyType)\n" +
+               "  {\n" +
+               "    UNITY_SET_DETAILS(\"Pear\",\"MyMyType\");\n" +
+               "    UNITY_TEST_ASSERT_EQUAL_MY_TYPE_ARRAY(&cmock_call_instance->Expected_MyMyType, &MyMyType, 1, cmock_line, CMockStringMismatch);\n" +
+               "  }\n"
     @unity_helper.expect :nil?, false
     @unity_helper.expect :get_helper, ['UNITY_TEST_ASSERT_EQUAL_MY_TYPE_ARRAY', '&'], ['MY_TYPE']
     assert_equal(expected, @cmock_generator_utils_complex.code_verify_an_arg_expectation(function, arg))