diff -r 02e7e1d73ebb -r 75f44d3063da testsuite.py
--- a/testsuite.py	Wed Jan 24 23:14:01 2018 +0200
+++ b/testsuite.py	Wed Jan 31 14:34:23 2018 +0200
@@ -14,6 +14,9 @@
 def error(bad_object, error_name, **args):
     return report_element(bad_object, 'error', error_name, args)
 
+def notice(bad_object, error_name, **args):
+    return report_element(bad_object, 'notice', error_name, args)
+
 def test_discovery():
     '''
         Finds all test modules and yields their names.
@@ -67,22 +70,31 @@
             warn(str.format('Module {} does not have a manifest', module_name))
     return test_suite
 
+def problem_key(problem):
+    problem_hierarchy = ['error', 'warning', 'notice']
+    return (problem_hierarchy.index(problem['type']), problem['line-number'])
+
 def check_model(model, test_suite = None):
     if not test_suite:
         test_suite = load_tests()
-    report = []
+    problems = []
     line_numbers = {
         element: (i, i + 1 + model.body_offset)
         for i, element in enumerate(model.body)
     }
     for test_name, test_function in test_suite['tests'].items():
-        problems = test_function(model)
-        for problem in problems:
+        for problem in test_function(model):
             problem['body-index'], problem['line-number'] \
                 = line_numbers[problem['object']]
             del problem['object']
-            report.append(problem)
-    return report
+            problems.append(problem)
+    return {
+        'passed': not any(
+            problem['type'] == 'error'
+            for problem in problems
+        ),
+        'problems': sorted(problems, key = problem_key),
+    }
 
 def problem_text(problem, test_suite):
     message = test_suite['messages'][problem['name']]
@@ -91,8 +103,8 @@
     return message
 
 def format_report_html(report, model, test_suite):
-    result = []
-    for problem in report:
+    messages = []
+    for problem in report['problems']:
         ldraw_code = model.body[problem['body-index']].textual_representation()
         message = str.format(
             '<li class="{problem_type}">{model_name}:{line_number}:'
@@ -103,21 +115,20 @@
             message = problem_text(problem, test_suite),
             ldraw_code = ldraw_code,
         )
-        result.append((problem['line-number'], message))
-    return '\n'.join(
-        problem[1]
-        for problem in sorted(result)
-    )
+        messages.append(message)
+    return '\n'.join(messages)
 
 def format_report(report, model, test_suite):
     import colorama
     colorama.init()
-    result = []
-    for problem in report:
+    messages = []
+    for problem in report['problems']:
         if problem['type'] == 'error':
             text_colour = colorama.Fore.LIGHTRED_EX
         elif problem['type'] == 'warning':
             text_colour = colorama.Fore.LIGHTYELLOW_EX
+        elif problem['type'] == 'notice':
+            text_colour = colorama.Fore.LIGHTBLUE_EX
         else:
             text_colour = ''
         ldraw_code = model.body[problem['body-index']].textual_representation()
@@ -132,11 +143,8 @@
             colour_reset = colorama.Fore.RESET,
             ldraw_code = ldraw_code,
         )
-        result.append((problem['line-number'], message))
-    return '\n'.join(
-        problem[1]
-        for problem in sorted(result)
-    )
+        messages.append(message)
+    return '\n'.join(messages)
 
 if __name__ == '__main__':
     from pprint import pprint