import { assert } from "chai" ; import { findAndPushToEnd } from "./find-and-push-to-end" ; describe ( "./utils/find-and-push-to-end" , function ( ) { describe ( "findAndPushToEnd" , ( ) => { it ( "empty array" , ( ) => { assert . isUndefined ( findAndPushToEnd ( [ ] , ( e ) => e === 1 ) ) ; } ) ; it ( "no filter match" , ( ) => { assert . isUndefined ( findAndPushToEnd ( [ 1 , 2 , 3 ] , ( e ) => e === 4 ) ) ; } ) ; it ( "mutated correctly 1" , ( ) => { const inArr = [ 1 , 2 , 3 ] ; assert . strictEqual ( findAndPushToEnd ( inArr , ( e ) => e === 1 ) , 1 ) ; assert . deepStrictEqual ( inArr , [ 2 , 3 , 1 ] ) ; } ) ; it ( "mutated correctly 2" , ( ) => { const inArr = [ 1 , 2 , 3 ] ; assert . strictEqual ( findAndPushToEnd ( inArr , ( e ) => e === 2 ) , 2 ) ; assert . deepStrictEqual ( inArr , [ 1 , 3 , 2 ] ) ; } ) ; } ) ; } ) ;