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test: added bats dependencies files

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Signed-off-by: Sam Alba <samalba@users.noreply.github.com>
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# Change Log
All notable changes to this project will be documented in this file.
This project adheres to [Semantic Versioning](http://semver.org/).
## [0.3.0] - 2016-03-22
### Removed
- Move `fail()` to `bats-support`
## [0.2.0] - 2016-03-11
### Added
- `refute()` to complement `assert()`
- `npm` support
### Fixed
- Not consuming the `--` when stopping option parsing in
`assert_output`, `refute_output`, `assert_line` and `refute_line`
## 0.1.0 - 2016-02-16
### Added
- Reporting arbitrary failures with `fail()`
- Generic assertions with `assert()` and `assert_equal()`
- Testing exit status with `assert_success()` and `assert_failure()`
- Testing output with `assert_output()` and `refute_output()`
- Testing individual lines with `assert_line()` and `refute_line()`
[0.3.0]: https://github.com/ztombol/bats-assert/compare/v0.2.0...v0.3.0
[0.2.0]: https://github.com/ztombol/bats-assert/compare/v0.1.0...v0.2.0

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# bats-assert
[![License](https://img.shields.io/npm/l/bats-assert.svg)](https://github.com/jasonkarns/bats-assert-1/blob/master/LICENSE)
[![GitHub release](https://img.shields.io/github/release/jasonkarns/bats-assert-1.svg)](https://github.com/jasonkarns/bats-assert-1/releases)
[![npm release](https://img.shields.io/npm/v/bats-assert.svg)](https://www.npmjs.com/package/bats-assert)
[![Build Status](https://travis-ci.org/jasonkarns/bats-assert-1.svg?branch=master)](https://travis-ci.org/jasonkarns/bats-assert-1)
`bats-assert` is a helper library providing common assertions for
[Bats][bats].
Assertions are functions that perform a test and output relevant
information on failure to help debugging. They return 1 on failure and 0
otherwise. Output, [formatted][bats-support-output] for readability, is
sent to the standard error to make assertions usable outside of `@test`
blocks too.
Assertions testing exit code and output operate on the results of the
most recent invocation of `run`.
Dependencies:
- [`bats-support`][bats-support] (formerly `bats-core`) - output
formatting
See the [shared documentation][bats-docs] to learn how to install and
load this library.
## Usage
### `assert`
Fail if the given expression evaluates to false.
***Note:*** *The expression must be a simple command. [Compound
commands][bash-comp-cmd], such as `[[`, can be used only when executed
with `bash -c`.*
```bash
@test 'assert()' {
touch '/var/log/test.log'
assert [ -e '/var/log/test.log' ]
}
```
On failure, the failed expression is displayed.
```
-- assertion failed --
expression : [ -e /var/log/test.log ]
--
```
### `refute`
Fail if the given expression evaluates to true.
***Note:*** *The expression must be a simple command. [Compound
commands][bash-comp-cmd], such as `[[`, can be used only when executed
with `bash -c`.*
```bash
@test 'refute()' {
rm -f '/var/log/test.log'
refute [ -e '/var/log/test.log' ]
}
```
On failure, the successful expression is displayed.
```
-- assertion succeeded, but it was expected to fail --
expression : [ -e /var/log/test.log ]
--
```
### `assert_equal`
Fail if the two parameters, actual and expected value respectively, do
not equal.
```bash
@test 'assert_equal()' {
assert_equal 'have' 'want'
}
```
On failure, the expected and actual values are displayed.
```
-- values do not equal --
expected : want
actual : have
--
```
If either value is longer than one line both are displayed in
*multi-line* format.
### `assert_success`
Fail if `$status` is not 0.
```bash
@test 'assert_success() status only' {
run bash -c "echo 'Error!'; exit 1"
assert_success
}
```
On failure, `$status` and `$output` are displayed.
```
-- command failed --
status : 1
output : Error!
--
```
If `$output` is longer than one line, it is displayed in *multi-line*
format.
### `assert_failure`
Fail if `$status` is 0.
```bash
@test 'assert_failure() status only' {
run echo 'Success!'
assert_failure
}
```
On failure, `$output` is displayed.
```
-- command succeeded, but it was expected to fail --
output : Success!
--
```
If `$output` is longer than one line, it is displayed in *multi-line*
format.
#### Expected status
When one parameter is specified, fail if `$status` does not equal the
expected status specified by the parameter.
```bash
@test 'assert_failure() with expected status' {
run bash -c "echo 'Error!'; exit 1"
assert_failure 2
}
```
On failure, the expected and actual status, and `$output` are displayed.
```
-- command failed as expected, but status differs --
expected : 2
actual : 1
output : Error!
--
```
If `$output` is longer than one line, it is displayed in *multi-line*
format.
### `assert_output`
This function helps to verify that a command or function produces the
correct output by checking that the specified expected output matches
the actual output. Matching can be literal (default), partial or regular
expression. This function is the logical complement of `refute_output`.
#### Literal matching
By default, literal matching is performed. The assertion fails if
`$output` does not equal the expected output.
```bash
@test 'assert_output()' {
run echo 'have'
assert_output 'want'
}
```
On failure, the expected and actual output are displayed.
```
-- output differs --
expected : want
actual : have
--
```
If either value is longer than one line both are displayed in
*multi-line* format.
#### Existence
To assert that any (non-empty) output exists at all, simply omit the matching
argument.
```bash
@test 'assert_output()' {
run echo 'have'
assert_output
}
```
On failure, an error message is displayed.
```
-- no output --
expected non-empty output, but output was empty
--
```
#### Partial matching
Partial matching can be enabled with the `--partial` option (`-p` for
short). When used, the assertion fails if the expected *substring* is
not found in `$output`.
```bash
@test 'assert_output() partial matching' {
run echo 'ERROR: no such file or directory'
assert_output --partial 'SUCCESS'
}
```
On failure, the substring and the output are displayed.
```
-- output does not contain substring --
substring : SUCCESS
output : ERROR: no such file or directory
--
```
This option and regular expression matching (`--regexp` or `-e`) are
mutually exclusive. An error is displayed when used simultaneously.
#### Regular expression matching
Regular expression matching can be enabled with the `--regexp` option
(`-e` for short). When used, the assertion fails if the *extended
regular expression* does not match `$output`.
*Note: The anchors `^` and `$` bind to the beginning and the end of the
entire output (not individual lines), respectively.*
```bash
@test 'assert_output() regular expression matching' {
run echo 'Foobar 0.1.0'
assert_output --regexp '^Foobar v[0-9]+\.[0-9]+\.[0-9]$'
}
```
On failure, the regular expression and the output are displayed.
```
-- regular expression does not match output --
regexp : ^Foobar v[0-9]+\.[0-9]+\.[0-9]$
output : Foobar 0.1.0
--
```
An error is displayed if the specified extended regular expression is
invalid.
This option and partial matching (`--partial` or `-p`) are mutually
exclusive. An error is displayed when used simultaneously.
#### Standard Input, HereDocs and HereStrings
The expected output can be specified via standard input (also
heredoc/herestring) with the `-`/`--stdin` option.
```bash
@test 'assert_output() with pipe' {
run echo 'hello'
echo 'hello' | assert_output -
}
@test 'assert_output() with herestring' {
run echo 'hello'
assert_output - <<< hello
}
```
### `refute_output`
This function helps to verify that a command or function produces the
correct output by checking that the specified unexpected output does not
match the actual output. Matching can be literal (default), partial or
regular expression. This function is the logical complement of
`assert_output`.
#### Literal matching
By default, literal matching is performed. The assertion fails if
`$output` equals the unexpected output.
```bash
@test 'refute_output()' {
run echo 'want'
refute_output 'want'
}
```
On failure, the output is displayed.
```
-- output equals, but it was expected to differ --
output : want
--
```
If output is longer than one line it is displayed in *multi-line*
format.
#### Existence
To assert that there is no output at all, simply omit the matching argument.
```bash
@test 'refute_output()' {
run foo --silent
refute_output
}
```
On failure, an error message is displayed.
```
-- unexpected output --
expected no output, but output was non-empty
--
```
#### Partial matching
Partial matching can be enabled with the `--partial` option (`-p` for
short). When used, the assertion fails if the unexpected *substring* is
found in `$output`.
```bash
@test 'refute_output() partial matching' {
run echo 'ERROR: no such file or directory'
refute_output --partial 'ERROR'
}
```
On failure, the substring and the output are displayed.
```
-- output should not contain substring --
substring : ERROR
output : ERROR: no such file or directory
--
```
This option and regular expression matching (`--regexp` or `-e`) are
mutually exclusive. An error is displayed when used simultaneously.
#### Regular expression matching
Regular expression matching can be enabled with the `--regexp` option
(`-e` for short). When used, the assertion fails if the *extended
regular expression* matches `$output`.
*Note: The anchors `^` and `$` bind to the beginning and the end of the
entire output (not individual lines), respectively.*
```bash
@test 'refute_output() regular expression matching' {
run echo 'Foobar v0.1.0'
refute_output --regexp '^Foobar v[0-9]+\.[0-9]+\.[0-9]$'
}
```
On failure, the regular expression and the output are displayed.
```
-- regular expression should not match output --
regexp : ^Foobar v[0-9]+\.[0-9]+\.[0-9]$
output : Foobar v0.1.0
--
```
An error is displayed if the specified extended regular expression is
invalid.
This option and partial matching (`--partial` or `-p`) are mutually
exclusive. An error is displayed when used simultaneously.
#### Standard Input, HereDocs and HereStrings
The unexpected output can be specified via standard input (also
heredoc/herestring) with the `-`/`--stdin` option.
```bash
@test 'refute_output() with pipe' {
run echo 'hello'
echo 'world' | refute_output -
}
@test 'refute_output() with herestring' {
run echo 'hello'
refute_output - <<< world
}
```
### `assert_line`
Similarly to `assert_output`, this function helps to verify that a
command or function produces the correct output. It checks that the
expected line appears in the output (default) or in a specific line of
it. Matching can be literal (default), partial or regular expression.
This function is the logical complement of `refute_line`.
***Warning:*** *Due to a [bug in Bats][bats-93], empty lines are
discarded from `${lines[@]}`, causing line indices to change and
preventing testing for empty lines.*
[bats-93]: https://github.com/sstephenson/bats/pull/93
#### Looking for a line in the output
By default, the entire output is searched for the expected line. The
assertion fails if the expected line is not found in `${lines[@]}`.
```bash
@test 'assert_line() looking for line' {
run echo $'have-0\nhave-1\nhave-2'
assert_line 'want'
}
```
On failure, the expected line and the output are displayed.
***Warning:*** *The output displayed does not contain empty lines. See
the Warning above for more.*
```
-- output does not contain line --
line : want
output (3 lines):
have-0
have-1
have-2
--
```
If output is not longer than one line, it is displayed in *two-column*
format.
#### Matching a specific line
When the `--index <idx>` option is used (`-n <idx>` for short) , the
expected line is matched only against the line identified by the given
index. The assertion fails if the expected line does not equal
`${lines[<idx>]}`.
```bash
@test 'assert_line() specific line' {
run echo $'have-0\nhave-1\nhave-2'
assert_line --index 1 'want-1'
}
```
On failure, the index and the compared lines are displayed.
```
-- line differs --
index : 1
expected : want-1
actual : have-1
--
```
#### Partial matching
Partial matching can be enabled with the `--partial` option (`-p` for
short). When used, a match fails if the expected *substring* is not
found in the matched line.
```bash
@test 'assert_line() partial matching' {
run echo $'have 1\nhave 2\nhave 3'
assert_line --partial 'want'
}
```
On failure, the same details are displayed as for literal matching,
except that the substring replaces the expected line.
```
-- no output line contains substring --
substring : want
output (3 lines):
have 1
have 2
have 3
--
```
This option and regular expression matching (`--regexp` or `-e`) are
mutually exclusive. An error is displayed when used simultaneously.
#### Regular expression matching
Regular expression matching can be enabled with the `--regexp` option
(`-e` for short). When used, a match fails if the *extended regular
expression* does not match the line being tested.
*Note: As expected, the anchors `^` and `$` bind to the beginning and
the end of the matched line, respectively.*
```bash
@test 'assert_line() regular expression matching' {
run echo $'have-0\nhave-1\nhave-2'
assert_line --index 1 --regexp '^want-[0-9]$'
}
```
On failure, the same details are displayed as for literal matching,
except that the regular expression replaces the expected line.
```
-- regular expression does not match line --
index : 1
regexp : ^want-[0-9]$
line : have-1
--
```
An error is displayed if the specified extended regular expression is
invalid.
This option and partial matching (`--partial` or `-p`) are mutually
exclusive. An error is displayed when used simultaneously.
### `refute_line`
Similarly to `refute_output`, this function helps to verify that a
command or function produces the correct output. It checks that the
unexpected line does not appear in the output (default) or in a specific
line of it. Matching can be literal (default), partial or regular
expression. This function is the logical complement of `assert_line`.
***Warning:*** *Due to a [bug in Bats][bats-93], empty lines are
discarded from `${lines[@]}`, causing line indices to change and
preventing testing for empty lines.*
[bats-93]: https://github.com/sstephenson/bats/pull/93
#### Looking for a line in the output
By default, the entire output is searched for the unexpected line. The
assertion fails if the unexpected line is found in `${lines[@]}`.
```bash
@test 'refute_line() looking for line' {
run echo $'have-0\nwant\nhave-2'
refute_line 'want'
}
```
On failure, the unexpected line, the index of its first match and the
output with the matching line highlighted are displayed.
***Warning:*** *The output displayed does not contain empty lines. See
the Warning above for more.*
```
-- line should not be in output --
line : want
index : 1
output (3 lines):
have-0
> want
have-2
--
```
If output is not longer than one line, it is displayed in *two-column*
format.
#### Matching a specific line
When the `--index <idx>` option is used (`-n <idx>` for short) , the
unexpected line is matched only against the line identified by the given
index. The assertion fails if the unexpected line equals
`${lines[<idx>]}`.
```bash
@test 'refute_line() specific line' {
run echo $'have-0\nwant-1\nhave-2'
refute_line --index 1 'want-1'
}
```
On failure, the index and the unexpected line are displayed.
```
-- line should differ --
index : 1
line : want-1
--
```
#### Partial matching
Partial matching can be enabled with the `--partial` option (`-p` for
short). When used, a match fails if the unexpected *substring* is found
in the matched line.
```bash
@test 'refute_line() partial matching' {
run echo $'have 1\nwant 2\nhave 3'
refute_line --partial 'want'
}
```
On failure, in addition to the details of literal matching, the
substring is also displayed. When used with `--index <idx>` the
substring replaces the unexpected line.
```
-- no line should contain substring --
substring : want
index : 1
output (3 lines):
have 1
> want 2
have 3
--
```
This option and regular expression matching (`--regexp` or `-e`) are
mutually exclusive. An error is displayed when used simultaneously.
#### Regular expression matching
Regular expression matching can be enabled with the `--regexp` option
(`-e` for short). When used, a match fails if the *extended regular
expression* matches the line being tested.
*Note: As expected, the anchors `^` and `$` bind to the beginning and
the end of the matched line, respectively.*
```bash
@test 'refute_line() regular expression matching' {
run echo $'Foobar v0.1.0\nRelease date: 2015-11-29'
refute_line --index 0 --regexp '^Foobar v[0-9]+\.[0-9]+\.[0-9]$'
}
```
On failure, in addition to the details of literal matching, the regular
expression is also displayed. When used with `--index <idx>` the regular
expression replaces the unexpected line.
```
-- regular expression should not match line --
index : 0
regexp : ^Foobar v[0-9]+\.[0-9]+\.[0-9]$
line : Foobar v0.1.0
--
```
An error is displayed if the specified extended regular expression is
invalid.
This option and partial matching (`--partial` or `-p`) are mutually
exclusive. An error is displayed when used simultaneously.
## Options
For functions that have options, `--` disables option parsing for the
remaining arguments to allow using arguments identical to one of the
allowed options.
```bash
assert_output -- '-p'
```
Specifying `--` as an argument is similarly simple.
```bash
refute_line -- '--'
```
<!-- REFERENCES -->
[bats]: https://github.com/sstephenson/bats
[bats-support-output]: https://github.com/ztombol/bats-support#output-formatting
[bats-support]: https://github.com/ztombol/bats-support
[bats-docs]: https://github.com/ztombol/bats-docs
[bash-comp-cmd]: https://www.gnu.org/software/bash/manual/bash.html#Compound-Commands

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source "$(dirname "${BASH_SOURCE[0]}")/src/assert.bash"

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{
"name": "bats-assert",
"version": "2.0.0",
"description": "Common assertions for Bats",
"homepage": "https://github.com/jasonkarns/bats-assert-1",
"license": "CC0-1.0",
"contributors": [
"Zoltán Tömböl (https://github.com/ztombol)",
"Sam Stephenson <sstephenson@gmail.com> (http://sstephenson.us/)",
"Jason Karns <jason.karns@gmail.com> (http://jason.karns.name)",
"Mislav Marohnić <mislav.marohnic@gmail.com> (http://mislav.net/)",
"Tim Pope (https://github.com/tpope)"
],
"repository": {
"type": "git",
"url": "https://github.com/jasonkarns/bats-assert-1.git"
},
"bugs": {
"url": "https://github.com/jasonkarns/bats-assert-1/issues"
},
"directories": {
"lib": "src",
"test": "test"
},
"files": [
"load.bash",
"src"
],
"scripts": {
"postversion": "npm publish",
"prepublishOnly": "npm run publish:github",
"publish:github": "git push --follow-tags"
},
"peerDependencies": {
"bats-support": "git+https://github.com/ztombol/bats-support.git#v0.2.0"
},
"keywords": [
"bats",
"bash",
"shell",
"test",
"unit",
"assert",
"assertion",
"helper"
]
}

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stdlib/bats/tests/testfile/mods/bats-assert/src/assert.bash Normal file
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#
# bats-assert - Common assertions for Bats
#
# 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/>.
#
#
# assert.bash
# -----------
#
# Assertions are functions that perform a test and output relevant
# information on failure to help debugging. They return 1 on failure
# and 0 otherwise.
#
# All output is formatted for readability using the functions of
# `output.bash' and sent to the standard error.
#
# Fail and display the expression if it evaluates to false.
#
# NOTE: The expression must be a simple command. Compound commands, such
# as `[[', can be used only when executed with `bash -c'.
#
# Globals:
# none
# Arguments:
# $1 - expression
# Returns:
# 0 - expression evaluates to TRUE
# 1 - otherwise
# Outputs:
# STDERR - details, on failure
assert() {
if ! "$@"; then
batslib_print_kv_single 10 'expression' "$*" \
| batslib_decorate 'assertion failed' \
| fail
fi
}
# Fail and display the expression if it evaluates to true.
#
# NOTE: The expression must be a simple command. Compound commands, such
# as `[[', can be used only when executed with `bash -c'.
#
# Globals:
# none
# Arguments:
# $1 - expression
# Returns:
# 0 - expression evaluates to FALSE
# 1 - otherwise
# Outputs:
# STDERR - details, on failure
refute() {
if "$@"; then
batslib_print_kv_single 10 'expression' "$*" \
| batslib_decorate 'assertion succeeded, but it was expected to fail' \
| fail
fi
}
# Fail and display details if the expected and actual values do not
# equal. Details include both values.
#
# Globals:
# none
# Arguments:
# $1 - actual value
# $2 - expected value
# Returns:
# 0 - values equal
# 1 - otherwise
# Outputs:
# STDERR - details, on failure
assert_equal() {
if [[ $1 != "$2" ]]; then
batslib_print_kv_single_or_multi 8 \
'expected' "$2" \
'actual' "$1" \
| batslib_decorate 'values do not equal' \
| fail
fi
}
# Fail and display details if `$status' is not 0. Details include
# `$status' and `$output'.
#
# Globals:
# status
# output
# Arguments:
# none
# Returns:
# 0 - `$status' is 0
# 1 - otherwise
# Outputs:
# STDERR - details, on failure
assert_success() {
if (( status != 0 )); then
{ local -ir width=6
batslib_print_kv_single "$width" 'status' "$status"
batslib_print_kv_single_or_multi "$width" 'output' "$output"
} | batslib_decorate 'command failed' \
| fail
fi
}
# Fail and display details if `$status' is 0. Details include `$output'.
#
# Optionally, when the expected status is specified, fail when it does
# not equal `$status'. In this case, details include the expected and
# actual status, and `$output'.
#
# Globals:
# status
# output
# Arguments:
# $1 - [opt] expected status
# Returns:
# 0 - `$status' is not 0, or
# `$status' equals the expected status
# 1 - otherwise
# Outputs:
# STDERR - details, on failure
assert_failure() {
(( $# > 0 )) && local -r expected="$1"
if (( status == 0 )); then
batslib_print_kv_single_or_multi 6 'output' "$output" \
| batslib_decorate 'command succeeded, but it was expected to fail' \
| fail
elif (( $# > 0 )) && (( status != expected )); then
{ local -ir width=8
batslib_print_kv_single "$width" \
'expected' "$expected" \
'actual' "$status"
batslib_print_kv_single_or_multi "$width" \
'output' "$output"
} | batslib_decorate 'command failed as expected, but status differs' \
| fail
fi
}
# Fail and display details if `$output' does not match the expected
# output. The expected output can be specified either by the first
# parameter or on the standard input.
#
# By default, literal matching is performed. The assertion fails if the
# expected output does not equal `$output'. Details include both values.
#
# Option `--partial' enables partial matching. The assertion fails if
# the expected substring cannot be found in `$output'.
#
# Option `--regexp' enables regular expression matching. The assertion
# fails if the extended regular expression does not match `$output'. An
# invalid regular expression causes an error to be displayed.
#
# It is an error to use partial and regular expression matching
# simultaneously.
#
# Globals:
# output
# Options:
# -p, --partial - partial matching
# -e, --regexp - extended regular expression matching
# -, --stdin - read expected output from the standard input
# Arguments:
# $1 - expected output
# Returns:
# 0 - expected matches the actual output
# 1 - otherwise
# Inputs:
# STDIN - [=$1] expected output
# Outputs:
# STDERR - details, on failure
# error message, on error
assert_output() {
local -i is_mode_partial=0
local -i is_mode_regexp=0
local -i is_mode_nonempty=0
local -i use_stdin=0
# Handle options.
if (( $# == 0 )); then
is_mode_nonempty=1
fi
while (( $# > 0 )); do
case "$1" in
-p|--partial) is_mode_partial=1; shift ;;
-e|--regexp) is_mode_regexp=1; shift ;;
-|--stdin) use_stdin=1; shift ;;
--) shift; break ;;
*) break ;;
esac
done
if (( is_mode_partial )) && (( is_mode_regexp )); then
echo "\`--partial' and \`--regexp' are mutually exclusive" \
| batslib_decorate 'ERROR: assert_output' \
| fail
return $?
fi
# Arguments.
local expected
if (( use_stdin )); then
expected="$(cat -)"
else
expected="$1"
fi
# Matching.
if (( is_mode_nonempty )); then
if [ -z "$output" ]; then
echo 'expected non-empty output, but output was empty' \
| batslib_decorate 'no output' \
| fail
fi
elif (( is_mode_regexp )); then
if [[ '' =~ $expected ]] || (( $? == 2 )); then
echo "Invalid extended regular expression: \`$expected'" \
| batslib_decorate 'ERROR: assert_output' \
| fail
elif ! [[ $output =~ $expected ]]; then
batslib_print_kv_single_or_multi 6 \
'regexp' "$expected" \
'output' "$output" \
| batslib_decorate 'regular expression does not match output' \
| fail
fi
elif (( is_mode_partial )); then
if [[ $output != *"$expected"* ]]; then
batslib_print_kv_single_or_multi 9 \
'substring' "$expected" \
'output' "$output" \
| batslib_decorate 'output does not contain substring' \
| fail
fi
else
if [[ $output != "$expected" ]]; then
batslib_print_kv_single_or_multi 8 \
'expected' "$expected" \
'actual' "$output" \
| batslib_decorate 'output differs' \
| fail
fi
fi
}
# Fail and display details if `$output' matches the unexpected output.
# The unexpected output can be specified either by the first parameter
# or on the standard input.
#
# By default, literal matching is performed. The assertion fails if the
# unexpected output equals `$output'. Details include `$output'.
#
# Option `--partial' enables partial matching. The assertion fails if
# the unexpected substring is found in `$output'. The unexpected
# substring is added to details.
#
# Option `--regexp' enables regular expression matching. The assertion
# fails if the extended regular expression does matches `$output'. The
# regular expression is added to details. An invalid regular expression
# causes an error to be displayed.
#
# It is an error to use partial and regular expression matching
# simultaneously.
#
# Globals:
# output
# Options:
# -p, --partial - partial matching
# -e, --regexp - extended regular expression matching
# -, --stdin - read unexpected output from the standard input
# Arguments:
# $1 - unexpected output
# Returns:
# 0 - unexpected matches the actual output
# 1 - otherwise
# Inputs:
# STDIN - [=$1] unexpected output
# Outputs:
# STDERR - details, on failure
# error message, on error
refute_output() {
local -i is_mode_partial=0
local -i is_mode_regexp=0
local -i is_mode_empty=0
local -i use_stdin=0
# Handle options.
if (( $# == 0 )); then
is_mode_empty=1
fi
while (( $# > 0 )); do
case "$1" in
-p|--partial) is_mode_partial=1; shift ;;
-e|--regexp) is_mode_regexp=1; shift ;;
-|--stdin) use_stdin=1; shift ;;
--) shift; break ;;
*) break ;;
esac
done
if (( is_mode_partial )) && (( is_mode_regexp )); then
echo "\`--partial' and \`--regexp' are mutually exclusive" \
| batslib_decorate 'ERROR: refute_output' \
| fail
return $?
fi
# Arguments.
local unexpected
if (( use_stdin )); then
unexpected="$(cat -)"
else
unexpected="$1"
fi
if (( is_mode_regexp == 1 )) && [[ '' =~ $unexpected ]] || (( $? == 2 )); then
echo "Invalid extended regular expression: \`$unexpected'" \
| batslib_decorate 'ERROR: refute_output' \
| fail
return $?
fi
# Matching.
if (( is_mode_empty )); then
if [ -n "$output" ]; then
batslib_print_kv_single_or_multi 6 \
'output' "$output" \
| batslib_decorate 'output non-empty, but expected no output' \
| fail
fi
elif (( is_mode_regexp )); then
if [[ $output =~ $unexpected ]] || (( $? == 0 )); then
batslib_print_kv_single_or_multi 6 \
'regexp' "$unexpected" \
'output' "$output" \
| batslib_decorate 'regular expression should not match output' \
| fail
fi
elif (( is_mode_partial )); then
if [[ $output == *"$unexpected"* ]]; then
batslib_print_kv_single_or_multi 9 \
'substring' "$unexpected" \
'output' "$output" \
| batslib_decorate 'output should not contain substring' \
| fail
fi
else
if [[ $output == "$unexpected" ]]; then
batslib_print_kv_single_or_multi 6 \
'output' "$output" \
| batslib_decorate 'output equals, but it was expected to differ' \
| fail
fi
fi
}
# Fail and display details if the expected line is not found in the
# output (default) or in a specific line of it.
#
# By default, the entire output is searched for the expected line. The
# expected line is matched against every element of `${lines[@]}'. If no
# match is found, the assertion fails. Details include the expected line
# and `${lines[@]}'.
#
# When `--index <idx>' is specified, only the <idx>-th line is matched.
# If the expected line does not match `${lines[<idx>]}', the assertion
# fails. Details include <idx> and the compared lines.
#
# By default, literal matching is performed. A literal match fails if
# the expected string does not equal the matched string.
#
# Option `--partial' enables partial matching. A partial match fails if
# the expected substring is not found in the target string.
#
# Option `--regexp' enables regular expression matching. A regular
# expression match fails if the extended regular expression does not
# match the target string. An invalid regular expression causes an error
# to be displayed.
#
# It is an error to use partial and regular expression matching
# simultaneously.
#
# Mandatory arguments to long options are mandatory for short options
# too.
#
# Globals:
# output
# lines
# Options:
# -n, --index <idx> - match the <idx>-th line
# -p, --partial - partial matching
# -e, --regexp - extended regular expression matching
# Arguments:
# $1 - expected line
# Returns:
# 0 - match found
# 1 - otherwise
# Outputs:
# STDERR - details, on failure
# error message, on error
# FIXME(ztombol): Display `${lines[@]}' instead of `$output'!
assert_line() {
local -i is_match_line=0
local -i is_mode_partial=0
local -i is_mode_regexp=0
# Handle options.
while (( $# > 0 )); do
case "$1" in
-n|--index)
if (( $# < 2 )) || ! [[ $2 =~ ^([0-9]|[1-9][0-9]+)$ ]]; then
echo "\`--index' requires an integer argument: \`$2'" \
| batslib_decorate 'ERROR: assert_line' \
| fail
return $?
fi
is_match_line=1
local -ri idx="$2"
shift 2
;;
-p|--partial) is_mode_partial=1; shift ;;
-e|--regexp) is_mode_regexp=1; shift ;;
--) shift; break ;;
*) break ;;
esac
done
if (( is_mode_partial )) && (( is_mode_regexp )); then
echo "\`--partial' and \`--regexp' are mutually exclusive" \
| batslib_decorate 'ERROR: assert_line' \
| fail
return $?
fi
# Arguments.
local -r expected="$1"
if (( is_mode_regexp == 1 )) && [[ '' =~ $expected ]] || (( $? == 2 )); then
echo "Invalid extended regular expression: \`$expected'" \
| batslib_decorate 'ERROR: assert_line' \
| fail
return $?
fi
# Matching.
if (( is_match_line )); then
# Specific line.
if (( is_mode_regexp )); then
if ! [[ ${lines[$idx]} =~ $expected ]]; then
batslib_print_kv_single 6 \
'index' "$idx" \
'regexp' "$expected" \
'line' "${lines[$idx]}" \
| batslib_decorate 'regular expression does not match line' \
| fail
fi
elif (( is_mode_partial )); then
if [[ ${lines[$idx]} != *"$expected"* ]]; then
batslib_print_kv_single 9 \
'index' "$idx" \
'substring' "$expected" \
'line' "${lines[$idx]}" \
| batslib_decorate 'line does not contain substring' \
| fail
fi
else
if [[ ${lines[$idx]} != "$expected" ]]; then
batslib_print_kv_single 8 \
'index' "$idx" \
'expected' "$expected" \
'actual' "${lines[$idx]}" \
| batslib_decorate 'line differs' \
| fail
fi
fi
else
# Contained in output.
if (( is_mode_regexp )); then
local -i idx
for (( idx = 0; idx < ${#lines[@]}; ++idx )); do
[[ ${lines[$idx]} =~ $expected ]] && return 0
done
{ local -ar single=(
'regexp' "$expected"
)
local -ar may_be_multi=(
'output' "$output"
)
local -ir width="$( batslib_get_max_single_line_key_width \
"${single[@]}" "${may_be_multi[@]}" )"
batslib_print_kv_single "$width" "${single[@]}"
batslib_print_kv_single_or_multi "$width" "${may_be_multi[@]}"
} | batslib_decorate 'no output line matches regular expression' \
| fail
elif (( is_mode_partial )); then
local -i idx
for (( idx = 0; idx < ${#lines[@]}; ++idx )); do
[[ ${lines[$idx]} == *"$expected"* ]] && return 0
done
{ local -ar single=(
'substring' "$expected"
)
local -ar may_be_multi=(
'output' "$output"
)
local -ir width="$( batslib_get_max_single_line_key_width \
"${single[@]}" "${may_be_multi[@]}" )"
batslib_print_kv_single "$width" "${single[@]}"
batslib_print_kv_single_or_multi "$width" "${may_be_multi[@]}"
} | batslib_decorate 'no output line contains substring' \
| fail
else
local -i idx
for (( idx = 0; idx < ${#lines[@]}; ++idx )); do
[[ ${lines[$idx]} == "$expected" ]] && return 0
done
{ local -ar single=(
'line' "$expected"
)
local -ar may_be_multi=(
'output' "$output"
)
local -ir width="$( batslib_get_max_single_line_key_width \
"${single[@]}" "${may_be_multi[@]}" )"
batslib_print_kv_single "$width" "${single[@]}"
batslib_print_kv_single_or_multi "$width" "${may_be_multi[@]}"
} | batslib_decorate 'output does not contain line' \
| fail
fi
fi
}
# Fail and display details if the unexpected line is found in the output
# (default) or in a specific line of it.
#
# By default, the entire output is searched for the unexpected line. The
# unexpected line is matched against every element of `${lines[@]}'. If
# a match is found, the assertion fails. Details include the unexpected
# line, the index of the first match and `${lines[@]}' with the matching
# line highlighted if `${lines[@]}' is longer than one line.
#
# When `--index <idx>' is specified, only the <idx>-th line is matched.
# If the unexpected line matches `${lines[<idx>]}', the assertion fails.
# Details include <idx> and the unexpected line.
#
# By default, literal matching is performed. A literal match fails if
# the unexpected string does not equal the matched string.
#
# Option `--partial' enables partial matching. A partial match fails if
# the unexpected substring is found in the target string. When used with
# `--index <idx>', the unexpected substring is also displayed on
# failure.
#
# Option `--regexp' enables regular expression matching. A regular
# expression match fails if the extended regular expression matches the
# target string. When used with `--index <idx>', the regular expression
# is also displayed on failure. An invalid regular expression causes an
# error to be displayed.
#
# It is an error to use partial and regular expression matching
# simultaneously.
#
# Mandatory arguments to long options are mandatory for short options
# too.
#
# Globals:
# output
# lines
# Options:
# -n, --index <idx> - match the <idx>-th line
# -p, --partial - partial matching
# -e, --regexp - extended regular expression matching
# Arguments:
# $1 - unexpected line
# Returns:
# 0 - match not found
# 1 - otherwise
# Outputs:
# STDERR - details, on failure
# error message, on error
# FIXME(ztombol): Display `${lines[@]}' instead of `$output'!
refute_line() {
local -i is_match_line=0
local -i is_mode_partial=0
local -i is_mode_regexp=0
# Handle options.
while (( $# > 0 )); do
case "$1" in
-n|--index)
if (( $# < 2 )) || ! [[ $2 =~ ^([0-9]|[1-9][0-9]+)$ ]]; then
echo "\`--index' requires an integer argument: \`$2'" \
| batslib_decorate 'ERROR: refute_line' \
| fail
return $?
fi
is_match_line=1
local -ri idx="$2"
shift 2
;;
-p|--partial) is_mode_partial=1; shift ;;
-e|--regexp) is_mode_regexp=1; shift ;;
--) shift; break ;;
*) break ;;
esac
done
if (( is_mode_partial )) && (( is_mode_regexp )); then
echo "\`--partial' and \`--regexp' are mutually exclusive" \
| batslib_decorate 'ERROR: refute_line' \
| fail
return $?
fi
# Arguments.
local -r unexpected="$1"
if (( is_mode_regexp == 1 )) && [[ '' =~ $unexpected ]] || (( $? == 2 )); then
echo "Invalid extended regular expression: \`$unexpected'" \
| batslib_decorate 'ERROR: refute_line' \
| fail
return $?
fi
# Matching.
if (( is_match_line )); then
# Specific line.
if (( is_mode_regexp )); then
if [[ ${lines[$idx]} =~ $unexpected ]] || (( $? == 0 )); then
batslib_print_kv_single 6 \
'index' "$idx" \
'regexp' "$unexpected" \
'line' "${lines[$idx]}" \
| batslib_decorate 'regular expression should not match line' \
| fail
fi
elif (( is_mode_partial )); then
if [[ ${lines[$idx]} == *"$unexpected"* ]]; then
batslib_print_kv_single 9 \
'index' "$idx" \
'substring' "$unexpected" \
'line' "${lines[$idx]}" \
| batslib_decorate 'line should not contain substring' \
| fail
fi
else
if [[ ${lines[$idx]} == "$unexpected" ]]; then
batslib_print_kv_single 5 \
'index' "$idx" \
'line' "${lines[$idx]}" \
| batslib_decorate 'line should differ' \
| fail
fi
fi
else
# Line contained in output.
if (( is_mode_regexp )); then
local -i idx
for (( idx = 0; idx < ${#lines[@]}; ++idx )); do
if [[ ${lines[$idx]} =~ $unexpected ]]; then
{ local -ar single=(
'regexp' "$unexpected"
'index' "$idx"
)
local -a may_be_multi=(
'output' "$output"
)
local -ir width="$( batslib_get_max_single_line_key_width \
"${single[@]}" "${may_be_multi[@]}" )"
batslib_print_kv_single "$width" "${single[@]}"
if batslib_is_single_line "${may_be_multi[1]}"; then
batslib_print_kv_single "$width" "${may_be_multi[@]}"
else
may_be_multi[1]="$( printf '%s' "${may_be_multi[1]}" \
| batslib_prefix \
| batslib_mark '>' "$idx" )"
batslib_print_kv_multi "${may_be_multi[@]}"
fi
} | batslib_decorate 'no line should match the regular expression' \
| fail
return $?
fi
done
elif (( is_mode_partial )); then
local -i idx
for (( idx = 0; idx < ${#lines[@]}; ++idx )); do
if [[ ${lines[$idx]} == *"$unexpected"* ]]; then
{ local -ar single=(
'substring' "$unexpected"
'index' "$idx"
)
local -a may_be_multi=(
'output' "$output"
)
local -ir width="$( batslib_get_max_single_line_key_width \
"${single[@]}" "${may_be_multi[@]}" )"
batslib_print_kv_single "$width" "${single[@]}"
if batslib_is_single_line "${may_be_multi[1]}"; then
batslib_print_kv_single "$width" "${may_be_multi[@]}"
else
may_be_multi[1]="$( printf '%s' "${may_be_multi[1]}" \
| batslib_prefix \
| batslib_mark '>' "$idx" )"
batslib_print_kv_multi "${may_be_multi[@]}"
fi
} | batslib_decorate 'no line should contain substring' \
| fail
return $?
fi
done
else
local -i idx
for (( idx = 0; idx < ${#lines[@]}; ++idx )); do
if [[ ${lines[$idx]} == "$unexpected" ]]; then
{ local -ar single=(
'line' "$unexpected"
'index' "$idx"
)
local -a may_be_multi=(
'output' "$output"
)
local -ir width="$( batslib_get_max_single_line_key_width \
"${single[@]}" "${may_be_multi[@]}" )"
batslib_print_kv_single "$width" "${single[@]}"
if batslib_is_single_line "${may_be_multi[1]}"; then
batslib_print_kv_single "$width" "${may_be_multi[@]}"
else
may_be_multi[1]="$( printf '%s' "${may_be_multi[1]}" \
| batslib_prefix \
| batslib_mark '>' "$idx" )"
batslib_print_kv_multi "${may_be_multi[@]}"
fi
} | batslib_decorate 'line should not be in output' \
| fail
return $?
fi
done
fi
fi
}