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+PureUnity
+
+Mathieu Bouchard <matju@artengine.ca>
+
+January 13th, 2006
+
+Abstract
+
+This paper covers the theory behind PureUnity, 
+PureData's test framework.
+
+Table of Contents
+
+1 What is testing?
+    1.1 a test tests something that gets tested
+    1.2 a triad of testing
+2 Methodologies of Testing
+    2.1 test-by-Proof
+    2.2 test-by-Use
+    2.3 test-by-Rule
+    2.4 test-by-Example
+3 Quelques cossins
+    3.1 Protocol
+    3.2 Preconditions
+    3.3 Postconditions
+    3.4 Wrapconditions
+    3.5 Inheritance
+    3.6 Aspect-programming and stuff
+    3.7 Meta-abstractions
+    3.8 Float-Signal Polymorphism
+    3.9 Unit-Tests
+    3.10 Algebraic Properties
+    3.11 Temporal Logic
+    3.12 TODO
+
+
+
+1 What is testing?
+
+1.1 a test tests something that gets tested
+
+(write ontological nonsense here)
+
+1.2 a triad of testing
+
+I've thought of a triad:
+
+A. "the real thing"
+
+B. what it's documented as
+
+C. a way to verify that (1) and (2) agree
+
+and another one:
+
+changing A to match B+C: programming
+
+changing B to match A+C: the scientific method (aka 
+reverse engineering)
+
+changing C to match A+B: unit-tests and contracts and 
+scientific experiments
+
+2 Methodologies of Testing
+
+I once called unit-tests "test-by-example" and 
+contracts "test-by-rule". I think that those names are 
+preferable to the more common names. I also hadlisted 
+"test-by-use" which is to use the software in practice: 
+this may include testing a component A using the unit 
+tests for B because B uses A.The last I had listed was 
+"test-by-proof", which is rarer and is the only one 
+that requires analysing the implementation.
+
+2.1 test-by-Proof
+
+2.2 test-by-Use
+
+2.3 test-by-Rule
+
+2.4 test-by-Example
+
+3 Quelques cossins
+
+3.1 Protocol
+
+3.2 Preconditions
+
+3.3 Postconditions
+
+3.4 Wrapconditions
+
+3.5 Inheritance
+
+3.6 Aspect-programming and stuff
+
+3.7 Meta-abstractions
+
+3.8 Float-Signal Polymorphism
+
+3.9 Unit-Tests
+
+3.10 Algebraic Properties
+
+3.11 Temporal Logic
+
+3.12 TODO