An anagram is a word or sentence that can be rearranged to create another one, like LISTEN can be turn to SILENT, or RECITALS can turn into ARTICLES.

Scala version used is 2.12.

The application developed check only txt files by default.

The files used in testing was created with anagrams got with the web page https://wordsmith.org/anagram/.

file_01.txt and file_02.txt contains anagrams of 'Astronomer'

file_03.txt and file_04.txt contains anagrams of 'Statue of Liberty'

file_05.txt contains a bunch of mixed anagrams used for small testing.

The application was built using sbt.

1. run sbt in project folder:

   anagrams-sergio-escudero $ sbt
   [info] welcome to sbt 1.5.2 (Oracle Corporation Java 11.0.1)
   [info] loading global plugins from /Users/sarkis/.sbt/1.0/plugins
   [info] loading project definition from /HOME/development/workspaces/code_test/anagrams-sergio-escudero/project
   [info] loading settings for project anagrams-sergio-escudero from build.sbt ...
   [info] set current project to anagrams-sergio-escudero (in build file:/HOME/development/workspaces/code_test/anagrams-sergio-escudero/)
   [info] sbt server started at local:///Users/sarkis/.sbt/1.0/server/80d87c3b1b14d05d052c/sock
   [info] started sbt server

2. Clean project

   sbt:anagrams-sergio-escudero> clean
   [success] Total time: 0 s, completed Dec 8, 2021, 6:34:21 PM

3. Run the test

   sbt:anagrams-sergio-escudero> test
   [info] compiling 3 Scala sources to /HOME/development/workspaces/code_test/anagrams-sergio-escudero/target/scala-2.12/classes ...
   [info] compiling 3 Scala sources to /HOME/development/workspaces/code_test/anagrams-sergio-escudero/target/scala-2.12/test-classes ...
   [info] FileHelperSpec:
   [info] - should return false because it does not exists
   [info] - should return true because it does exists
   [info] - should return 5 files
   [info] - should return 0 files because there is not zip files
   [info] AnagramSpec:
   [info] 'Built to stay free'
   [info] - should be the anagram of 'Statue of Liberty'
   [info] 'A En Mr Or Sot'
   [info] - should be the anagram of 'Astronomer'
   [info] 'Built to stay free' in file_05.txt
   [info] - should be the longest anagram of 'Statue of Liberty'
   [info] 'We'
   [info] - should not have an anagram in file_01.txt for 'We'
   [info] 'A En Mr Or Sot'
   [info] - should be the longest anagram of 'Astronomer' in all files
   [info] 'Built to stay free'
   [info] - should be the longest anagram of 'Statue of Liberty' in all files
   [info] Run completed in 217 milliseconds.
   [info] Total number of tests run: 10
   [info] Suites: completed 2, aborted 0
   [info] Tests: succeeded 10, failed 0, canceled 0, ignored 0, pending 0
   [info] All tests passed.
   [success] Total time: 2 s, completed Dec 8, 2021, 6:53:26 PM

For running the application, I have used the folder test/resources.

There are 2 options:

1. Using sbt:

sbt:anagrams-sergio-escudero> run /HOME/development/workspaces/code_test/anagrams-sergio-escudero/src/test/resources
[info] running com.sergioescudero.Main /HOME/development/workspaces/code_test/anagrams-sergio-escudero/src/test/resources
Match for> We
Longest anagram is...not found here
Match for> Astronomer
Longest anagram is...A En Mr Or Sot
Match for> Statue of Liberty
Longest anagram is...Built to stay free
Match for>

2. Packaging the code in a jar and execute with scala:

First, code is packaged:

sbt:anagrams-sergio-escudero> clean
[success] Total time: 0 s, completed Dec 8, 2021, 6:55:51 PM
sbt:anagrams-sergio-escudero> package
[info] compiling 3 Scala sources to /HOME/development/workspaces/code_test/anagrams-sergio-escudero/target/scala-2.12/classes ...
[success] Total time: 1 s, completed Dec 8, 2021, 6:55:54 PM
sbt:anagrams-sergio-escudero>

Jar is placed in

./target/scala-2.12/anagrams-sergio-escudero_2.12-1.0.jar

The following command is used for run it:

anagrams-sergio-escudero $ scala /HOME/development/workspaces/code_test/anagrams-sergio-escudero/target/scala-2.12/anagrams-sergio-escudero_2.12-1.0.jar /HOME/development/workspaces/code_test/anagrams-sergio-escudero/src/test/resources
Match for> We
Longest anagram is...not found here
Match for> Statue of Liberty
Longest anagram is...Built to stay free
Match for> Astronomer
Longest anagram is...A En Mr Or Sot
Match for>