#!/usr/bin/env bats load bats-extra @test "finds the largest product if span equals length" { #[[ $BATS_RUN_SKIPPED == "true" ]] || skip run gawk -f largest-series-product.awk <<< "29,2" assert_success assert_output "18" } @test "can find the largest product of 2 with numbers in order" { [[ $BATS_RUN_SKIPPED == "true" ]] || skip run gawk -f largest-series-product.awk <<< "0123456789,2" assert_success assert_output "72" } @test "can find the largest product of 2" { [[ $BATS_RUN_SKIPPED == "true" ]] || skip run gawk -f largest-series-product.awk <<< "576802143,2" assert_success assert_output "48" } @test "can find the largest product of 3 with numbers in order" { [[ $BATS_RUN_SKIPPED == "true" ]] || skip run gawk -f largest-series-product.awk <<< "0123456789,3" assert_success assert_output "504" } @test "can find the largest product of 3" { [[ $BATS_RUN_SKIPPED == "true" ]] || skip run gawk -f largest-series-product.awk <<< "1027839564,3" assert_success assert_output "270" } @test "can find the largest product of 5 with numbers in order" { [[ $BATS_RUN_SKIPPED == "true" ]] || skip run gawk -f largest-series-product.awk <<< "0123456789,5" assert_success assert_output "15120" } @test "can get the largest product of a big number" { [[ $BATS_RUN_SKIPPED == "true" ]] || skip run gawk -f largest-series-product.awk <<< "73167176531330624919225119674426574742355349194934,6" assert_success assert_output "23520" } @test "reports zero if the only digits are zero" { [[ $BATS_RUN_SKIPPED == "true" ]] || skip run gawk -f largest-series-product.awk <<< "0000,2" assert_success assert_output "0" } @test "reports zero if all spans include zero" { [[ $BATS_RUN_SKIPPED == "true" ]] || skip run gawk -f largest-series-product.awk <<< "99099,3" assert_success assert_output "0" } # error cases @test "rejects span longer than string length" { [[ $BATS_RUN_SKIPPED == "true" ]] || skip run gawk -f largest-series-product.awk <<< "123,4" assert_failure assert_output --partial "span must not exceed string length" } @test "rejects empty string and nonzero span" { [[ $BATS_RUN_SKIPPED == "true" ]] || skip run gawk -f largest-series-product.awk <<< ",1" assert_failure assert_output --partial "span must not exceed string length" } @test "rejects invalid character in digits" { [[ $BATS_RUN_SKIPPED == "true" ]] || skip run gawk -f largest-series-product.awk <<< "1234a5,2" assert_failure assert_output --partial "input must only contain digits" } @test "rejects negative span" { [[ $BATS_RUN_SKIPPED == "true" ]] || skip run gawk -f largest-series-product.awk <<< "12345,-1" assert_failure assert_output --partial "span must not be negative" }