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29 lines
749 B
Markdown
29 lines
749 B
Markdown
---
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title: "testing"
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tags:
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- cosc202
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---
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# testing
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- most software will contain bugs
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- bug severity if not always equivalent to bug priority
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- testing is seeking out bugs
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- some test types
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- unit tests
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- integration tests ⇒ check units work together
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- end-to-end tests ⇒ check behaviour of whole program
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## 1 Limitations
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- testing every code path is impossible
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- halting problem - cant fully analyse code using code
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- proved by alan turing in 1936
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- good test design focuses on _key cases_ to pass and fail
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- not probe interaction between units
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- this should be done by integration testing
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- testing may afffect behaviour of code
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- testing framework may affect the order of esecution
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- testing framework may change execution speed
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