January 2019
Intermediate to advanced
376 pages
8h 49m
English
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Chapter 11State Machine Properties
If you’ve ever had a system that could do things differently based on context, you probably have an intuitive knowledge of what a finite state machine is. Finite state machines (FSM) are, informally speaking, an abstraction describing certain stateful programs. The program can be in only one of multiple known states at a time (such as a traffic light being red, yellow, or green), and transitions from one state to another based on specific inputs or events. Within each state, the program may behave differently.
Let’s imagine a program that should take special measures—such as forbidding some actions or enabling new features—depending on whether network connectivity is good, bad, or entirely unavailable. Testing ...
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