#!/usr/bin/env bats load bats-extra # run-length encode a string @test "encode empty string" { #[[ $BATS_RUN_SKIPPED == "true" ]] || skip run gawk -f run-length-encoding.awk -v type=encode <<< "" assert_success assert_output "" } @test "encode single characters only are encoded without count" { [[ $BATS_RUN_SKIPPED == "true" ]] || skip run gawk -f run-length-encoding.awk -v type=encode <<< "XYZ" assert_success assert_output "XYZ" } @test "encode string with no single characters" { [[ $BATS_RUN_SKIPPED == "true" ]] || skip run gawk -f run-length-encoding.awk -v type=encode <<< "AABBBCCCC" assert_success assert_output "2A3B4C" } @test "encode single characters mixed with repeated characters" { [[ $BATS_RUN_SKIPPED == "true" ]] || skip run gawk -f run-length-encoding.awk -v type=encode <<< "WWWWWWWWWWWWBWWWWWWWWWWWWBBBWWWWWWWWWWWWWWWWWWWWWWWWB" assert_success assert_output "12WB12W3B24WB" } @test "encode multiple whitespace mixed in string" { [[ $BATS_RUN_SKIPPED == "true" ]] || skip run gawk -f run-length-encoding.awk -v type=encode <<< " hsqq qww " assert_success assert_output "2 hs2q q2w2 " } @test "encode lowercase characters" { [[ $BATS_RUN_SKIPPED == "true" ]] || skip run gawk -f run-length-encoding.awk -v type=encode <<< "aabbbcccc" assert_success assert_output "2a3b4c" } # run-length decode a string @test "decode empty string" { [[ $BATS_RUN_SKIPPED == "true" ]] || skip run gawk -f run-length-encoding.awk -v type=decode <<< "" assert_success assert_output "" } @test "single characters only" { [[ $BATS_RUN_SKIPPED == "true" ]] || skip run gawk -f run-length-encoding.awk -v type=decode <<< "XYZ" assert_success assert_output "XYZ" } @test "decode string with no single characters" { [[ $BATS_RUN_SKIPPED == "true" ]] || skip run gawk -f run-length-encoding.awk -v type=decode <<< "2A3B4C" assert_success assert_output "AABBBCCCC" } @test "decode single characters with repeated characters" { [[ $BATS_RUN_SKIPPED == "true" ]] || skip run gawk -f run-length-encoding.awk -v type=decode <<< "12WB12W3B24WB" assert_success assert_output "WWWWWWWWWWWWBWWWWWWWWWWWWBBBWWWWWWWWWWWWWWWWWWWWWWWWB" } @test "decode multiple whitespace mixed in string" { [[ $BATS_RUN_SKIPPED == "true" ]] || skip run gawk -f run-length-encoding.awk -v type=decode <<< "2 hs2q q2w2 " assert_success assert_output " hsqq qww " } @test "decode lower case string" { [[ $BATS_RUN_SKIPPED == "true" ]] || skip run gawk -f run-length-encoding.awk -v type=decode <<< "2a3b4c" assert_success assert_output "aabbbcccc" } # encode and then decode @test "encode followed by decode gives original string" { [[ $BATS_RUN_SKIPPED == "true" ]] || skip plaintext="zzz ZZ zZ" run gawk -f run-length-encoding.awk -v type=encode <<< "$plaintext" assert_success encoded=$output run gawk -f run-length-encoding.awk -v type=decode <<< "$encoded" assert_success assert_output "$plaintext" }