Added aok utility function
The name is not intended to sound cute: it means "array okay". Note that this also demonstrates the need for a silent check: `aok foo' will fail, but will output an error.env
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#!/bin/bash
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# Utility functions/procedures
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#
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# Copyright (C) 2014 Mike Gewitz
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#
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# This file is part of shspec.
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#
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# shspec is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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#
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# These algorithms will often use looping constructs in favor of recursion
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# for performance reasons.
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##
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[ -z $__INC_UTIL ] || return
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__INC_UTIL=1
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##
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# Array functions/procedures ("a" prefix)
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#
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##
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# Asserts that all given values are zero
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#
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# This is perhaps mose useful for PIPESTATUS evaluation (the pipefail option
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# may not be available). If any value is non-zero, it will immediately
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# terminate with a non-zero status.
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aok()
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{
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local -ar arr=("$@")
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local -i i="${#arr[@]}"
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while ((i--)); do
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test "${arr[i]}" -eq 0 || return 1
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done
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}
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@ -0,0 +1,60 @@
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#!/bin/bash
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# Utility function/procedure tests
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#
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# Copyright (C) 2014 Mike Gewitz
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#
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# This file is part of shspec.
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#
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# shspec is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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##
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describe aok
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it succeeds for all zero values
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expect aok 0
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to succeed
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expect aok 0 0 0
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to succeed
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end
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it fails for any zero values
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expect aok 1
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to fail
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expect aok 1 0 0
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to fail
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expect aok 0 1 0
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to fail
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expect aok 0 0 1
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to fail
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expect aok 1 1 1
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to fail
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end
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# this surely implies a bug in the user's code
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it fails for any non-numeric values
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expect aok foo
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to fail
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expect aok 0 foo
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to fail
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expect aok foo 0
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to fail
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end
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end
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