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diff --git a/COPYING b/COPYING new file mode 100644 index 0000000..0e259d4 --- /dev/null +++ b/COPYING
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diff --git a/README.md b/README.md new file mode 100644 index 0000000..ef9dc0d --- /dev/null +++ b/README.md
@@ -0,0 +1,115 @@ +# bats-core + +`bats-core` is a supporting library providing common functions to test +helper libraries written for [Bats][bats]. + +Features: +- [output formatting](#output-formatting) + +See the [shared documentation][bats-docs] to learn how to install and +load this library. + +If you want to use this library in your own helpers or just want to +learn about its internals see the developer documentation in the [source +files](src). + + +## Output formatting + +Many test helpers need to produce human readable output. This library +provides a simple way to format simple messages and key value pairs, and +display them on the standard error. + + +### Simple message + +Simple messages without structure, e.g. one-line error messages, are +simply wrapped in a header and a footer to help them stand out. + +``` +-- ERROR: assert_output -- +`--partial' and `--regexp' are mutually exclusive +-- +``` + + +### Key-Value pairs + +Some helpers, e.g. [assertions][bats-assert], structure output as +key-value pairs. This library provides two ways to format them. + +When the value is one line long, a pair can be displayed in a columnar +fashion called ***two-column*** format. + +``` +-- output differs -- +expected : want +actual : have +-- +``` + +When the value is longer than one line, the key and value must be +displayed on separate lines. First, the key is displayed along with the +number of lines in the value. Then, the value, indented by two spaces +for added readability, starting on the next line. This is called +***multi-line*** format. + +``` +-- command failed -- +status : 1 +output (2 lines): + Error! Something went terribly wrong! + Our engineers are panicing... \`>`;/ +-- +``` + +Sometimes, for clarity, it is a good idea to display related values also +in this format, even if they are just one line long. + +``` +-- output differs -- +expected (1 lines): + want +actual (3 lines): + have 1 + have 2 + have 3 +-- +``` + + +# Licence + +`bats-core` is licensed under the CC0 licence to ensure the highest +possible compatibility with other software. + +- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - + +<!-- BEGIN GENERATED with https://creativecommons.org/choose/zero/ --> + +<p xmlns:dct="http://purl.org/dc/terms/" xmlns:vcard="http://www.w3.org/2001/vcard-rdf/3.0#"> + <a rel="license" + href="http://creativecommons.org/publicdomain/zero/1.0/"> + <img src="http://i.creativecommons.org/p/zero/1.0/88x31.png" style="border-style: none;" alt="CC0" /> + </a> + <br /> + To the extent possible under law, + <a rel="dct:publisher" + href="https://github.com/ztombol"> + <span property="dct:title">Zoltán Tömböl</span></a> + has waived all copyright and related or neighboring rights to + <span property="dct:title">bats-core</span>. +This work is published from: +<span property="vcard:Country" datatype="dct:ISO3166" + content="HU" about="https://github.com/ztombol"> + Hungary</span>. +</p> + +<!-- END GENERATED --> + + +<!-- REFERENCES --> + +[bats]: https://github.com/sstephenson/bats +[bats-docs]: https://github.com/ztombol/bats-docs +[bats-assert]: https://github.com/ztombol/bats-assert
diff --git a/load.bash b/load.bash new file mode 100644 index 0000000..325c5b1 --- /dev/null +++ b/load.bash
@@ -0,0 +1 @@ +source "$(dirname "${BASH_SOURCE[0]}")/src/output.bash"
diff --git a/src/output.bash b/src/output.bash new file mode 100644 index 0000000..e407a9a --- /dev/null +++ b/src/output.bash
@@ -0,0 +1,279 @@ +# +# bats-core - Supporting library for Bats test helpers +# +# Written in 2016 by Zoltan Tombol <zoltan dot tombol at gmail dot com> +# +# To the extent possible under law, the author(s) have dedicated all +# copyright and related and neighboring rights to this software to the +# public domain worldwide. This software is distributed without any +# warranty. +# +# You should have received a copy of the CC0 Public Domain Dedication +# along with this software. If not, see +# <http://creativecommons.org/publicdomain/zero/1.0/>. +# + +# +# output.bash +# ----------- +# +# Private functions implementing output formatting. Used by public +# helper functions. +# + +# Print a message to the standard error. When no parameters are +# specified, the message is read from the standard input. +# +# Globals: +# none +# Arguments: +# $@ - [=STDIN] message +# Returns: +# none +# Inputs: +# STDIN - [=$@] message +# Outputs: +# STDERR - message +batslib_err() { + { if (( $# > 0 )); then + echo "$@" + else + cat - + fi + } >&2 +} + +# Count the number of lines in the given string. +# +# TODO(ztombol): Fix tests and remove this note after #93 is resolved! +# NOTE: Due to a bug in Bats, `batslib_count_lines "$output"' does not +# give the same result as `${#lines[@]}' when the output contains +# empty lines. +# See PR #93 (https://github.com/sstephenson/bats/pull/93). +# +# Globals: +# none +# Arguments: +# $1 - string +# Returns: +# none +# Outputs: +# STDOUT - number of lines +batslib_count_lines() { + local -i n_lines=0 + local line + while IFS='' read -r line || [[ -n $line ]]; do + (( ++n_lines )) + done < <(printf '%s' "$1") + echo "$n_lines" +} + +# Determine whether all strings are single-line. +# +# Globals: +# none +# Arguments: +# $@ - strings +# Returns: +# 0 - all strings are single-line +# 1 - otherwise +batslib_is_single_line() { + for string in "$@"; do + (( $(batslib_count_lines "$string") > 1 )) && return 1 + done + return 0 +} + +# Determine the length of the longest key that has a single-line value. +# +# This function is useful in determining the correct width of the key +# column in two-column format when some keys may have multi-line values +# and thus should be excluded. +# +# Globals: +# none +# Arguments: +# $odd - key +# $even - value of the previous key +# Returns: +# none +# Outputs: +# STDOUT - length of longest key +batslib_get_max_single_line_key_width() { + local -i max_len=-1 + while (( $# != 0 )); do + local -i key_len="${#1}" + batslib_is_single_line "$2" && (( key_len > max_len )) && max_len="$key_len" + shift 2 + done + echo "$max_len" +} + +# Print key-value pairs in two-column format. +# +# Keys are displayed in the first column, and their corresponding values +# in the second. To evenly line up values, the key column is fixed-width +# and its width is specified with the first parameter (possibly computed +# using `batslib_get_max_single_line_key_width'). +# +# Globals: +# none +# Arguments: +# $1 - width of key column +# $even - key +# $odd - value of the previous key +# Returns: +# none +# Outputs: +# STDOUT - formatted key-value pairs +batslib_print_kv_single() { + local -ir col_width="$1"; shift + while (( $# != 0 )); do + printf '%-*s : %s\n' "$col_width" "$1" "$2" + shift 2 + done +} + +# Print key-value pairs in multi-line format. +# +# The key is displayed first with the number of lines of its +# corresponding value in parenthesis. Next, starting on the next line, +# the value is displayed. For better readability, it is recommended to +# indent values using `batslib_prefix'. +# +# Globals: +# none +# Arguments: +# $odd - key +# $even - value of the previous key +# Returns: +# none +# Outputs: +# STDOUT - formatted key-value pairs +batslib_print_kv_multi() { + while (( $# != 0 )); do + printf '%s (%d lines):\n' "$1" "$( batslib_count_lines "$2" )" + printf '%s\n' "$2" + shift 2 + done +} + +# Print all key-value pairs in either two-column or multi-line format +# depending on whether all values are single-line. +# +# If all values are single-line, print all pairs in two-column format +# with the specified key column width (identical to using +# `batslib_print_kv_single'). +# +# Otherwise, print all pairs in multi-line format after indenting values +# with two spaces for readability (identical to using `batslib_prefix' +# and `batslib_print_kv_multi') +# +# Globals: +# none +# Arguments: +# $1 - width of key column (for two-column format) +# $even - key +# $odd - value of the previous key +# Returns: +# none +# Outputs: +# STDOUT - formatted key-value pairs +batslib_print_kv_single_or_multi() { + local -ir width="$1"; shift + local -a pairs=( "$@" ) + + local -a values=() + local -i i + for (( i=1; i < ${#pairs[@]}; i+=2 )); do + values+=( "${pairs[$i]}" ) + done + + if batslib_is_single_line "${values[@]}"; then + batslib_print_kv_single "$width" "${pairs[@]}" + else + local -i i + for (( i=1; i < ${#pairs[@]}; i+=2 )); do + pairs[$i]="$( batslib_prefix < <(printf '%s' "${pairs[$i]}") )" + done + batslib_print_kv_multi "${pairs[@]}" + fi +} + +# Prefix each line read from the standard input with the given string. +# +# Globals: +# none +# Arguments: +# $1 - [= ] prefix string +# Returns: +# none +# Inputs: +# STDIN - lines +# Outputs: +# STDOUT - prefixed lines +batslib_prefix() { + local -r prefix="${1:- }" + local line + while IFS='' read -r line || [[ -n $line ]]; do + printf '%s%s\n' "$prefix" "$line" + done +} + +# Mark select lines of the text read from the standard input by +# overwriting their beginning with the given string. +# +# Usually the input is indented by a few spaces using `batslib_prefix' +# first. +# +# Globals: +# none +# Arguments: +# $1 - marking string +# $@ - indices (zero-based) of lines to mark +# Returns: +# none +# Inputs: +# STDIN - lines +# Outputs: +# STDOUT - lines after marking +batslib_mark() { + local -r symbol="$1"; shift + # Sort line numbers. + set -- $( sort -nu <<< "$( printf '%d\n' "$@" )" ) + + local line + local -i idx=0 + while IFS='' read -r line || [[ -n $line ]]; do + if (( ${1:--1} == idx )); then + printf '%s\n' "${symbol}${line:${#symbol}}" + shift + else + printf '%s\n' "$line" + fi + (( ++idx )) + done +} + +# Enclose the input text in header and footer lines. +# +# The header contains the given string as title. The output is preceded +# and followed by an additional newline to make it stand out more. +# +# Globals: +# none +# Arguments: +# $1 - title +# Returns: +# none +# Inputs: +# STDIN - text +# Outputs: +# STDOUT - decorated text +batslib_decorate() { + echo + echo "-- $1 --" + cat - + echo '--' + echo +}
diff --git a/test/50-output-10-batslib_err.bats b/test/50-output-10-batslib_err.bats new file mode 100755 index 0000000..8c27fd1 --- /dev/null +++ b/test/50-output-10-batslib_err.bats
@@ -0,0 +1,16 @@ +#!/usr/bin/env bats + +load test_helper + +@test 'batslib_err() <message...>: displays <message...>' { + run batslib_err 'm1' 'm2' + [ "$status" -eq 0 ] + [ "$output" == 'm1 m2' ] +} + +@test 'batslib_err(): reads <message...> from STDIN' { + run bash -c "source '${TEST_MAIN_DIR}/load.bash' + echo 'm1' 'm2' | batslib_err" + [ "$status" -eq 0 ] + [ "$output" == 'm1 m2' ] +}
diff --git a/test/50-output-11-batslib_count_lines.bats b/test/50-output-11-batslib_count_lines.bats new file mode 100755 index 0000000..ea172c3 --- /dev/null +++ b/test/50-output-11-batslib_count_lines.bats
@@ -0,0 +1,21 @@ +#!/usr/bin/env bats + +load test_helper + +@test 'batslib_count_lines() <string>: displays the number of lines in <string>' { + run batslib_count_lines $'a\nb\nc\n' + [ "$status" -eq 0 ] + [ "$output" == '3' ] +} + +@test 'batslib_count_lines() <string>: counts the last line when it is not terminated by a newline' { + run batslib_count_lines $'a\nb\nc' + [ "$status" -eq 0 ] + [ "$output" == '3' ] +} + +@test 'batslib_count_lines() <string>: counts empty lines' { + run batslib_count_lines $'\n\n\n' + [ "$status" -eq 0 ] + [ "$output" == '3' ] +}
diff --git a/test/50-output-12-batslib_is_single_line.bats b/test/50-output-12-batslib_is_single_line.bats new file mode 100755 index 0000000..484b64d --- /dev/null +++ b/test/50-output-12-batslib_is_single_line.bats
@@ -0,0 +1,13 @@ +#!/usr/bin/env bats + +load test_helper + +@test 'batslib_is_single_line() <string...>: returns 0 if all <string...> are single-line' { + run batslib_is_single_line 'a' $'b\n' 'c' + [ "$status" -eq 0 ] +} + +@test 'batslib_is_single_line() <string...>: returns 1 if at least one of <string...> is longer than one line' { + run batslib_is_single_line 'a' $'b\nb' 'c' + [ "$status" -eq 1 ] +}
diff --git a/test/50-output-13-batslib_get_max_single_line_key_width.bats b/test/50-output-13-batslib_get_max_single_line_key_width.bats new file mode 100755 index 0000000..e6af161 --- /dev/null +++ b/test/50-output-13-batslib_get_max_single_line_key_width.bats
@@ -0,0 +1,21 @@ +#!/usr/bin/env bats + +load test_helper + +@test 'batslib_get_max_single_line_key_width() <pair...>: displays the length of the longest key' { + local -ar pairs=( 'k _1' 'v 1' + 'k 2' 'v 2' + 'k __3' 'v 3' ) + run batslib_get_max_single_line_key_width "${pairs[@]}" + [ "$status" -eq 0 ] + [ "$output" == '5' ] +} + +@test 'batslib_get_max_single_line_key_width() <pair...>: only considers keys with single-line values' { + local -ar pairs=( 'k _1' 'v 1' + 'k 2' 'v 2' + 'k __3' $'v\n3' ) + run batslib_get_max_single_line_key_width "${pairs[@]}" + [ "$status" -eq 0 ] + [ "$output" == '4' ] +}
diff --git a/test/50-output-14-batslib_print_kv_single.bats b/test/50-output-14-batslib_print_kv_single.bats new file mode 100755 index 0000000..7637897 --- /dev/null +++ b/test/50-output-14-batslib_print_kv_single.bats
@@ -0,0 +1,27 @@ +#!/usr/bin/env bats + +load test_helper + +@test 'batslib_print_kv_single() <width> <pair...>: displays <pair...> in two-column format with <width> wide key column' { + local -ar pairs=( 'k _1' 'v 1' + 'k 2 ' 'v 2' + 'k __3' 'v 3' ) + run batslib_print_kv_single 5 "${pairs[@]}" + [ "$status" -eq 0 ] + [ "${#lines[@]}" == '3' ] + [ "${lines[0]}" == 'k _1 : v 1' ] + [ "${lines[1]}" == 'k 2 : v 2' ] + [ "${lines[2]}" == 'k __3 : v 3' ] +} + +@test 'batslib_print_kv_single() <width> <pair...>: does not truncate keys when the column is too narrow' { + local -ar pairs=( 'k _1' 'v 1' + 'k 2' 'v 2' + 'k __3' 'v 3' ) + run batslib_print_kv_single 0 "${pairs[@]}" + [ "$status" -eq 0 ] + [ "${#lines[@]}" == '3' ] + [ "${lines[0]}" == 'k _1 : v 1' ] + [ "${lines[1]}" == 'k 2 : v 2' ] + [ "${lines[2]}" == 'k __3 : v 3' ] +}
diff --git a/test/50-output-15-batslib_print_kv_multi.bats b/test/50-output-15-batslib_print_kv_multi.bats new file mode 100755 index 0000000..6ad4b3d --- /dev/null +++ b/test/50-output-15-batslib_print_kv_multi.bats
@@ -0,0 +1,19 @@ +#!/usr/bin/env bats + +load test_helper + +@test 'batslib_print_kv_multi() <pair...>: displays <pair...> in multi-line format' { + local -ar pairs=( 'k _1' 'v 1' + 'k 2' $'v 2-1\nv 2-2' + 'k __3' 'v 3' ) + run batslib_print_kv_multi "${pairs[@]}" + [ "$status" -eq 0 ] + [ "${#lines[@]}" == '7' ] + [ "${lines[0]}" == 'k _1 (1 lines):' ] + [ "${lines[1]}" == 'v 1' ] + [ "${lines[2]}" == 'k 2 (2 lines):' ] + [ "${lines[3]}" == 'v 2-1' ] + [ "${lines[4]}" == 'v 2-2' ] + [ "${lines[5]}" == 'k __3 (1 lines):' ] + [ "${lines[6]}" == 'v 3' ] +}
diff --git a/test/50-output-16-batslib_print_kv_single_or_multi.bats b/test/50-output-16-batslib_print_kv_single_or_multi.bats new file mode 100755 index 0000000..c20d101 --- /dev/null +++ b/test/50-output-16-batslib_print_kv_single_or_multi.bats
@@ -0,0 +1,31 @@ +#!/usr/bin/env bats + +load test_helper + +@test 'batslib_print_kv_single_or_multi() <width> <pair...>: displays <pair...> in two-column format if all values are one line long' { + local -ar pairs=( 'k _1' 'v 1' + 'k 2 ' 'v 2' + 'k __3' 'v 3' ) + run batslib_print_kv_single_or_multi 5 "${pairs[@]}" + [ "$status" -eq 0 ] + [ "${#lines[@]}" == '3' ] + [ "${lines[0]}" == 'k _1 : v 1' ] + [ "${lines[1]}" == 'k 2 : v 2' ] + [ "${lines[2]}" == 'k __3 : v 3' ] +} + +@test 'batslib_print_kv_single_or_multi() <width> <pair...>: displays <pair...> in multi-line format if at least one value is longer than one line' { + local -ar pairs=( 'k _1' 'v 1' + 'k 2' $'v 2-1\nv 2-2' + 'k __3' 'v 3' ) + run batslib_print_kv_single_or_multi 5 "${pairs[@]}" + [ "$status" -eq 0 ] + [ "${#lines[@]}" == '7' ] + [ "${lines[0]}" == 'k _1 (1 lines):' ] + [ "${lines[1]}" == ' v 1' ] + [ "${lines[2]}" == 'k 2 (2 lines):' ] + [ "${lines[3]}" == ' v 2-1' ] + [ "${lines[4]}" == ' v 2-2' ] + [ "${lines[5]}" == 'k __3 (1 lines):' ] + [ "${lines[6]}" == ' v 3' ] +}
diff --git a/test/50-output-17-batslib_prefix.bats b/test/50-output-17-batslib_prefix.bats new file mode 100755 index 0000000..817fd33 --- /dev/null +++ b/test/50-output-17-batslib_prefix.bats
@@ -0,0 +1,43 @@ +#!/usr/bin/env bats + +load test_helper + +@test 'batslib_prefix() <prefix>: prefixes each line of the input with <prefix>' { + run bash -c "source '${TEST_MAIN_DIR}/load.bash' + printf 'a\nb\nc\n' | batslib_prefix '_'" + [ "$status" -eq 0 ] + [ "${#lines[@]}" -eq 3 ] + [ "${lines[0]}" == '_a' ] + [ "${lines[1]}" == '_b' ] + [ "${lines[2]}" == '_c' ] +} + +@test 'batslib_prefix() <prefix>: prefixes the last line when it is not terminated by a newline' { + run bash -c "source '${TEST_MAIN_DIR}/load.bash' + printf 'a\nb\nc' | batslib_prefix '_'" + [ "$status" -eq 0 ] + [ "${#lines[@]}" -eq 3 ] + [ "${lines[0]}" == '_a' ] + [ "${lines[1]}" == '_b' ] + [ "${lines[2]}" == '_c' ] +} + +@test 'batslib_prefix() <prefix>: prefixes empty lines' { + run bash -c "source '${TEST_MAIN_DIR}/load.bash' + printf '\n\n\n' | batslib_prefix '_'" + [ "$status" -eq 0 ] + [ "${#lines[@]}" -eq 3 ] + [ "${lines[0]}" == '_' ] + [ "${lines[1]}" == '_' ] + [ "${lines[2]}" == '_' ] +} + +@test 'batslib_prefix(): <prefix> default to two spaces' { + run bash -c "source '${TEST_MAIN_DIR}/load.bash' + printf 'a\nb\nc\n' | batslib_prefix" + [ "$status" -eq 0 ] + [ "${#lines[@]}" -eq 3 ] + [ "${lines[0]}" == ' a' ] + [ "${lines[1]}" == ' b' ] + [ "${lines[2]}" == ' c' ] +}
diff --git a/test/50-output-18-batslib_mark.bats b/test/50-output-18-batslib_mark.bats new file mode 100755 index 0000000..c5d0975 --- /dev/null +++ b/test/50-output-18-batslib_mark.bats
@@ -0,0 +1,72 @@ +#!/usr/bin/env bats + +load test_helper + +@test 'batslib_mark() <mark> <index>: marks the <index>-th line of the input with <mark>' { + run bash -c "source '${TEST_MAIN_DIR}/load.bash' + printf ' a\n b\n c\n' | batslib_mark '>' 0" + [ "$status" -eq 0 ] + [ "${#lines[@]}" -eq 3 ] + [ "${lines[0]}" == '>a' ] + [ "${lines[1]}" == ' b' ] + [ "${lines[2]}" == ' c' ] +} + +@test 'batslib_mark() <mark> <index...>: marks multiple lines when <index...> is in ascending order' { + run bash -c "source '${TEST_MAIN_DIR}/load.bash' + printf ' a\n b\n c\n' | batslib_mark '>' 1 2" + [ "$status" -eq 0 ] + [ "${#lines[@]}" -eq 3 ] + [ "${lines[0]}" == ' a' ] + [ "${lines[1]}" == '>b' ] + [ "${lines[2]}" == '>c' ] +} + +@test 'batslib_mark() <mark> <index...>: marks multiple lines when <index...> is in random order' { + run bash -c "source '${TEST_MAIN_DIR}/load.bash' + printf ' a\n b\n c\n d\n' | batslib_mark '>' 2 1 3" + [ "$status" -eq 0 ] + [ "${#lines[@]}" -eq 4 ] + [ "${lines[0]}" == ' a' ] + [ "${lines[1]}" == '>b' ] + [ "${lines[2]}" == '>c' ] + [ "${lines[3]}" == '>d' ] +} + +@test 'batslib_mark() <mark> <index...>: ignores duplicate indices' { + run bash -c "source '${TEST_MAIN_DIR}/load.bash' + printf ' a\n b\n c\n' | batslib_mark '>' 1 2 1" + [ "$status" -eq 0 ] + [ "${#lines[@]}" -eq 3 ] + [ "${lines[0]}" == ' a' ] + [ "${lines[1]}" == '>b' ] + [ "${lines[2]}" == '>c' ] +} + +@test 'batslib_mark() <mark> <index...>: outputs the input untouched if <mark> is the empty string' { + run bash -c "source '${TEST_MAIN_DIR}/load.bash' + printf ' a\n b\n c\n' | batslib_mark '' 1" + [ "$status" -eq 0 ] + [ "${#lines[@]}" -eq 3 ] + [ "${lines[0]}" == ' a' ] + [ "${lines[1]}" == ' b' ] + [ "${lines[2]}" == ' c' ] +} + +@test 'batslib_mark() <mark> <index>: marks the last line when it is not terminated by a newline' { + run bash -c "source '${TEST_MAIN_DIR}/load.bash' + printf ' a\n b\n c' | batslib_mark '>' 2" + [ "$status" -eq 0 ] + [ "${#lines[@]}" -eq 3 ] + [ "${lines[0]}" == ' a' ] + [ "${lines[1]}" == ' b' ] + [ "${lines[2]}" == '>c' ] +} + +@test 'batslib_mark() <mark> <index>: does not truncate <mark> if it is longer than the marked line' { + run bash -c "source '${TEST_MAIN_DIR}/load.bash' + printf '\n' | batslib_mark '>' 0" + [ "$status" -eq 0 ] + [ "${#lines[@]}" -eq 1 ] + [ "${lines[0]}" == '>' ] +}
diff --git a/test/50-output-19-batslib_decorate.bats b/test/50-output-19-batslib_decorate.bats new file mode 100755 index 0000000..02d55ad --- /dev/null +++ b/test/50-output-19-batslib_decorate.bats
@@ -0,0 +1,13 @@ +#!/usr/bin/env bats + +load test_helper + +@test 'batslib_decorate() <title>: encloses the input in a footer line and a header line containing <title>' { + run bash -c "source '${TEST_MAIN_DIR}/load.bash' + echo 'body' | batslib_decorate 'title'" + [ "$status" -eq 0 ] + [ "${#lines[@]}" -eq 3 ] + [ "${lines[0]}" == '-- title --' ] + [ "${lines[1]}" == 'body' ] + [ "${lines[2]}" == '--' ] +}
diff --git a/test/test_helper.bash b/test/test_helper.bash new file mode 100644 index 0000000..ca16775 --- /dev/null +++ b/test/test_helper.bash
@@ -0,0 +1,6 @@ +setup() { + export TEST_MAIN_DIR="${BATS_TEST_DIRNAME}/.." + + # Load library. + load '../load' +}