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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