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Added many more unit tests; parser appears to be working correctly,

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generator still needs work. But very promising!
This commit is contained in:
Simon Brooke 2015-12-28 19:46:18 +00:00
parent 1fb23ea9ce
commit b08881a99e
2 changed files with 163 additions and 33 deletions
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test/mw_parser/declarative_test.clj Normal file
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(ns mw-parser.declarative-test
(:use clojure.pprint
mw-engine.core
mw-engine.world)
(:require [clojure.test :refer :all]
[mw-parser.declarative :refer :all]))
(deftest rules-tests
(testing "Rule parser - does not test whether generated functions actually work, just that something is generated!"
(is (rule? (parse-rule "if state is forest then state should be climax")))
(is (rule? (parse-rule "if state is in grassland or pasture or heath then state should be village")))
(is (rule? (parse-rule "if altitude is less than 100 and state is forest then state should be climax and deer should be 3")))
(is (rule? (parse-rule "if altitude is 100 or fertility is 25 then state should be heath and fertility should be 24.3")))
(is (rule? (parse-rule "if altitude is 100 or fertility is 25 then state should be heath")))
(is (rule? (parse-rule "if deer is more than 2 and wolves is 0 and fertility is more than 20 then deer should be deer + 2")))
(is (rule? (parse-rule "if deer is more than 1 and wolves is more than 1 then deer should be deer - wolves")))
(is (rule? (parse-rule "if state is forest and fertility is between 55 and 75 then state should be climax")))
(is (rule? (parse-rule "if fertility is between 55 and 75 then state should be climax")))
(is (rule? (parse-rule "if altitude is less than 100 and state is forest then state should be climax and deer should be 3")))
))
(deftest neighbours-rules-tests
(testing "Rules which relate to neighbours - hard!"
(is (rule? (parse-rule "if state is climax and some neighbours have state equal to fire then 3 chance in 5 state should be fire")))
(is (rule? (parse-rule "if state is in grassland or pasture or heath and 4 neighbours have state equal to water then state should be village")))
(is (rule? (parse-rule "if 6 neighbours have state equal to water then state should be village")))
(is (rule? (parse-rule "if state is grassland and 4 neighbours have state equal to water then state should be village")))
(is (rule? (parse-rule "if state is pasture and more than 3 neighbours have state equal to scrub then state should be scrub")))
(is (rule? (parse-rule "if state is in grassland or pasture or heath and 4 neighbours have state equal to water then state should be village")))
(is (rule? (parse-rule "if state is grassland and 4 neighbours have state equal to water then state should be village")))
(is (rule? (parse-rule "if 6 neighbours have state equal to water then state should be village")))
))
(deftest lhs-generators-tests
(testing "Generating left-hand-side fragments of rule functions from appropriate fragments of parse trees"
(is (generate-property-condition
'(:PROPERTY-CONDITION (:SYMBOL "state") [:EQUIVALENCE [:IS "is"]] (:SYMBOL "forest")))
'(= (:state cell) :forest))
(is (generate-property-condition
'(:PROPERTY-CONDITION (:SYMBOL "fertility") [:EQUIVALENCE [:IS "is"]] (:NUMBER "10")))
'(= (:fertility cell) 10))
(is (generate-property-condition '(:PROPERTY-CONDITION (:SYMBOL "fertility") [:COMPARATIVE [:LESS "less"]] (:NUMBER "10")))
'(< (:fertility cell) 10))
(is (generate-property-condition '(:PROPERTY-CONDITION (:SYMBOL "fertility") [:COMPARATIVE [:MORE "more"]] (:NUMBER "10")))
'(> (:fertility cell) 10))
(is (generate-conjunct-condition '(:CONJUNCT-CONDITION (:PROPERTY-CONDITION (:SYMBOL "state") [:EQUIVALENCE [:IS "is"]] (:SYMBOL "forest")) (:AND "and") (:PROPERTY-CONDITION (:SYMBOL "fertility") [:EQUIVALENCE [:IS "is"]] (:NUMBER "10"))))
'(and (= (:state cell) :forest) (= (:fertility cell) 10)))
(is (generate-disjunct-condition '(:DISJUNCT-CONDITION (:PROPERTY-CONDITION (:SYMBOL "state") [:EQUIVALENCE [:IS "is"]] (:SYMBOL "forest")) (:OR "or") (:PROPERTY-CONDITION (:SYMBOL "fertility") [:EQUIVALENCE [:IS "is"]] (:NUMBER "10"))))
'(or (= (:state cell) :forest) (= (:fertility cell) 10)))
))
(deftest rhs-generators-tests
(testing "Generating left-hand-side fragments of rule functions from appropriate fragments of parse trees"
(is (generate-simple-action
'(:SIMPLE-ACTION (:SYMBOL "state") (:BECOMES "should be") (:SYMBOL "climax")))
'(merge cell {:state :climax}))
(is (generate-simple-action
'(:SIMPLE-ACTION (:SYMBOL "fertility") (:BECOMES "should be") (:NUMBER "10")))
'(merge cell {:fertility 10}))
))
(deftest exception-tests
(testing "Constructions which should cause exceptions to be thrown"
(is (thrown-with-msg? Exception #"^I did not understand.*"
(compile-rule "the quick brown fox jumped over the lazy dog"))
"Exception thrown if rule text does not match grammar")
;; (is (thrown-with-msg?
;; Exception #"The properties 'x' and 'y' of a cell are reserved and should not be set in rule actions"
;; (compile-rule "if state is new then x should be 0"))
;; "Exception thrown on attempt to set 'x'")
;; (is (thrown-with-msg?
;; Exception #"The properties 'x' and 'y' of a cell are reserved and should not be set in rule actions"
;; (compile-rule "if state is new then y should be 0"))
;; "Exception thrown on attempt to set 'y'")
;; (is (thrown? Exception (compile-rule "if state is new then x should be 0"))
;; "Can't set x property to number, as this would break the world")
;; (is (thrown? Exception (compile-rule "if state is new then y should be 0"))
;; "Can't set y property to number, as this would break the world")
;; (is (thrown? Exception (compile-rule "if state is new then x should be heath"))
;; "Can't set x property to symbol, as this would break the world")
;; (is (thrown? Exception (compile-rule "if state is new then y should be heath"))
;; "Can't set y property to symbol, as this would break the world")
))