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Use table-driven tests for specific parsers

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Karen Wang and Max Brunsfeld 2014-03-20 18:15:38 -07:00 • committed by Max Brunsfeld
parent 5869c1ea18
commit f248ece3aa
12 changed files with 355 additions and 167 deletions
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16
spec/runtime/languages/arithmetic/errors.txt Normal file
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=====================================================
recovers from errors at the top level
=====================================================
x * * y
---
(ERROR)
=====================================================
recovers from errors inside parenthesized expressions
=====================================================
x + (y * + z) * 5
---
(expression
(term (factor (variable)))
(plus)
(term (factor (ERROR)) (times) (factor (number))))

54
spec/runtime/languages/arithmetic/main.txt Normal file
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====================
parses numbers
===================
5
---
(expression (term (factor (number))))
===================
parses variables
===================
x
---
(expression (term (factor (variable))))
===================
parses products
===================
x * x
---
(expression (term
(factor (variable))
(times)
(factor (variable))))
===================
parses sums
===================
x + x
---
(expression
(term (factor (variable)))
(plus)
(term (factor (variable))))
====================
parses complex trees
====================
x * y + z * a
---
(expression
(term (factor (variable)) (times) (factor (variable)))
(plus)
(term (factor (variable)) (times) (factor (variable))))
=================================
handles parenthesized expressions
=================================
x * (y + z)
---
(expression
(term (factor (variable))
(times)
(factor (expression (term (factor (variable))) (plus) (term (factor (variable)))))))