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Make anagram order-independent #411

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merged 2 commits into from
Feb 14, 2025
Merged

Make anagram order-independent #411

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cdd2bcd
Make `anagram` order-independent
BNAndras Jan 19, 2025
196cc8e
Fix expected value order
BNAndras Jan 19, 2025
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36 changes: 22 additions & 14 deletions exercises/practice/anagram/anagram-test.rkt
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Original file line number Diff line number Diff line change
Expand Up @@ -16,8 +16,9 @@
'())

(test-equal? "detects two anagrams"
(anagrams-for "solemn"
'("lemons" "cherry" "melons"))
(sort (anagrams-for "solemn"
'("lemons" "cherry" "melons"))
string<?)
'("lemons" "melons"))

(test-equal? "does not detect anagram subsets"
Expand All @@ -31,13 +32,21 @@
'("inlets"))

(test-equal? "detects three anagrams"
(anagrams-for "allergy"
'("gallery" "ballerina" "regally" "clergy" "largely" "leading"))
'("gallery" "regally" "largely"))
(sort (anagrams-for "allergy"
'("gallery"
"ballerina"
"regally"
"clergy"
"largely"
"leading"))
string<?)

'("gallery" "largely" "regally"))

(test-equal? "detects multiple anagrams with different case"
(anagrams-for "nose"
'("Eons" "ONES"))
(sort (anagrams-for "nose"
'("Eons" "ONES"))
string<?)
'("Eons" "ONES"))

(test-equal? "does not detect non-anagrams with identical checksum"
Expand All @@ -50,12 +59,12 @@
'("cashregister" "Carthorse" "radishes"))
'("Carthorse"))

(test-equal? "detects anagrams using case-insensitive subject"
(test-equal? "detects anagrams using case-insensitive subject"
(anagrams-for "Orchestra"
'("cashregister" "carthorse" "radishes"))
'("carthorse"))

(test-equal? "detects anagrams using case-insensitive possible matches"
(test-equal? "detects anagrams using case-insensitive possible matches"
(anagrams-for "orchestra"
'("cashregister" "Carthorse" "radishes"))
'("Carthorse"))
Expand All @@ -65,27 +74,26 @@
'("goGoGO"))
'())

(test-equal? "anagrams must use all letters exactly once"
(test-equal? "anagrams must use all letters exactly once"
(anagrams-for "tapper"
'("patter"))
'())

(test-equal? "words are not anagrams of themselves"
(test-equal? "words are not anagrams of themselves"
(anagrams-for "BANANA"
'("BANANA"))
'())

(test-equal? "words are not anagrams of themselves even if letter case is partially different"
(test-equal? "words are not anagrams of themselves even if letter case is partially different"
(anagrams-for "BANANA"
'("Banana"))
'())

(test-equal? "words are not anagrams of themselves even if letter case is completely different"
(test-equal? "words are not anagrams of themselves even if letter case is completely different"
(anagrams-for "BANANA"
'("banana"))
'())


(test-equal? "words other than themselves can be anagrams"
(anagrams-for "LISTEN"
'("LISTEN" "Silent"))
Expand Down