mw-parser/test/mw_parser/simplify_test.clj
2023-07-19 20:35:40 +01:00

98 lines
4.7 KiB
Clojure

(ns mw-parser.simplify-test
(:require [clojure.test :refer [deftest is testing]]
[mw-parser.declarative :refer [parse]]
[mw-parser.simplify :refer [simplify]]
[mw-parser.utils :refer [search-tree]]))
((deftest disjunct-condition-test
(testing "Generation of disjunct conditions has been producing wrong
output -- in a way which didn't actually alter the
correctness of the rule -- since the beginning, and because
of inadequate and badly written tests, I didn't know it."
(let [expected '(:DISJUNCT-CONDITION
(:PROPERTY-CONDITION
(:SYMBOL "state")
(:QUALIFIER (:EQUIVALENCE (:IS "is")))
(:SYMBOL "forest"))
(:PROPERTY-CONDITION
(:SYMBOL "fertility")
(:QUALIFIER (:EQUIVALENCE (:IS "is")))
(:NUMBER "10")))
actual (simplify [:DISJUNCT-CONDITION
[:CONDITION
[:PROPERTY-CONDITION
[:PROPERTY [:SYMBOL "state"]]
[:SPACE " "]
[:QUALIFIER [:EQUIVALENCE [:IS "is"]]]
[:SPACE " "]
[:EXPRESSION [:VALUE [:SYMBOL "forest"]]]]]
[:SPACE " "]
[:OR "or"]
[:SPACE " "]
[:CONDITIONS
[:CONDITION
[:PROPERTY-CONDITION
[:PROPERTY [:SYMBOL "fertility"]]
[:SPACE " "]
[:QUALIFIER [:EQUIVALENCE [:IS "is"]]]
[:SPACE " "]
[:EXPRESSION [:VALUE [:NUMBER "10"]]]]]]])]
(is (= actual expected))))))
(deftest conjunct-condition-test
(testing "Conjunct conditions were failing in more or less the same way"
(let [expected '(:CONJUNCT-CONDITION
(:PROPERTY-CONDITION
(:SYMBOL "state")
(:QUALIFIER (:EQUIVALENCE (:IS "is")))
(:SYMBOL "forest"))
(:PROPERTY-CONDITION
(:SYMBOL "fertility")
(:QUALIFIER (:EQUIVALENCE (:IS "is")))
(:NUMBER "10")))
actual (simplify [:CONJUNCT-CONDITION
[:CONDITION
[:PROPERTY-CONDITION
[:PROPERTY [:SYMBOL "state"]]
[:SPACE " "]
[:QUALIFIER [:EQUIVALENCE [:IS "is"]]]
[:SPACE " "]
[:EXPRESSION [:VALUE [:SYMBOL "forest"]]]]]
[:SPACE " "]
[:AND "and"]
[:SPACE " "]
[:CONDITIONS
[:CONDITION
[:PROPERTY-CONDITION
[:PROPERTY [:SYMBOL "fertility"]]
[:SPACE " "]
[:QUALIFIER [:EQUIVALENCE [:IS "is"]]]
[:SPACE " "]
[:EXPRESSION [:VALUE [:NUMBER "10"]]]]]]])]
(is (= actual expected)))))
((deftest unchained-disjuncts-test
(testing "Disjunct values should not be chained"
(let [wrong '(:DISJUNCT-EXPRESSION
(:IN "in")
(:DISJUNCT-VALUE
(:SYMBOL "heath")
(:DISJUNCT-VALUE
(:SYMBOL "scrub")
(:DISJUNCT-VALUE (:SYMBOL "forest")))))
parse-tree (search-tree
(parse
"if state is not in heath or scrub or forest then state should be climax")
:DISJUNCT-EXPRESSION)
actual (simplify parse-tree)]
(is (not (= wrong actual))))
(let [expected '(:DISJUNCT-EXPRESSION
(:SYMBOL "heath")
(:SYMBOL "scrub")
(:SYMBOL "forest"))
parse-tree (search-tree
(parse
"if state is not in heath or scrub or forest then state should be climax")
:DISJUNCT-EXPRESSION)
actual (simplify parse-tree)]
(is (= expected actual))))))