340 lines
7.4 KiB
Bash
340 lines
7.4 KiB
Bash
#!/bin/bash
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# Specification DSL test
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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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# TODO: This is incompletely tested because the tests must be written as the
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# system itself is written! Therefore, it is not presently capable of
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# running all necessary assertions on itself.
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#
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# Note: this test case will run pretty slowly because it forks a new process
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# for each expectation.
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##
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##
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# It is necessary to test syntax in a separate process so we do not
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# interfere with the existing stack
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#
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# This will take an arbitrary script from stdin and execute it
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test-run()
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{
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../src/run-spec <( cat )
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}
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describe _begin-spec
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it is a placeholder that exits successfully
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expect _begin-spec
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to succeed
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end
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end
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describe describe
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it fails if not paired with an "'end'"
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expect test-run <<< '
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describe foo
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# no end
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'; to fail
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end
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it succeeds if paired with matching "'end'"
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expect test-run <<< '
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describe foo
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end
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'; to succeed
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end
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end
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describe it
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it fails within "'describe'" if not paired with an "'end'"
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expect test-run <<< '
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describe it test
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it will fail
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# no end
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end
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'; to fail
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end
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it succeeds within "'describe'" if paired with an "'end'"
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expect test-run <<< '
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describe it test
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it will succeed
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end
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end
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'; to succeed
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end
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end
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describe expect
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it fails when not within "'describe'"
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expect test-run <<< '
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describe will fail
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# not within it
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expect true; to succeed
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end
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'; to fail
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end
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it succeeds with "'to'" clause when when within "'describe'"
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expect test-run <<< '
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describe foo
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it will succeed
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expect true; to succeed
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end
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end
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'; to succeed
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end
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it fails when missing "'to'" clause of expectation
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expect test-run <<< '
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describe foo
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it will fail
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# no "to" clause
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expect true
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end
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end
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'; to fail
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end
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it cannot be "'end'd" before "'to'" clause
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expect test-run <<< '
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describe foo
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it will fail
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expect true
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# expectation is unfinished
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end
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end
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end
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'; to fail
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end
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# the "premise" is the command executed by the `expect' line
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describe premise
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it properly executes quoted command lines
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expect test-run <<< '
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chk() { test $# -eq 1; }
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describe foo
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it handles whitespace
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expect chk "foo bar"
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to succeed
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end
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end
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'; to succeed
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end
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end
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# the expectation handler performs the assertion logic
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describe handler
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it is provided premise exit code as first argument
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expect test-run <<< '
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declare excode=123
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_expect--chk() { test "$1" -eq $excode; }
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describe foo
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it exposes exit code
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expect exit $excode
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to chk
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end
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end
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'; to succeed
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end
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# the "remainder" clause is the portion of the sentence that follows the
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# execution of the expectation handler
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it is provided remainder clause after shift argument
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expect test-run <<< '
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declare remain="a b c"
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_expect--chk()
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{
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shift "$2"
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test "$*" == "$remain"
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}
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describe foo
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it should expose remainder clause
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expect true
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to chk $remain
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end
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end
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'; to succeed
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end
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it receives premise output via stdin
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expect test-run <<< '
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declare str=foo
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_expect--chk() { test "$(cat)" == "$str"; }
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describe foo
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it pipes command output
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expect echo "$str"
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to chk
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end
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end
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'; to succeed
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end
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# that is, if we use <<< to provide premise output from memory, a
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# newline will be added; we don't want that!
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it does not have newline added to premise output if missing
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expect test-run <<< '
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_expect--chk() { test "$( wc -c )" -eq 0; }
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describe foo
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it should not add newline
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expect true
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to chk
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end
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end
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'; to succeed
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end
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end
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describe to
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it fails when missing assertion string
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expect test-run <<< '
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describe foo
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it will fail
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# missing assertion sting
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expect true; to
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end
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end
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'; to fail
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end
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it can only follow an "'expect'" clause
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expect test-run <<< '
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describe foo
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it will fail
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# does not follow expect clause
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to succeed
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end
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'; to fail
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end
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it will fail on unknwon expectation
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expect test-run <<< '
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describe foo
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it will fail
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expect true
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to ___some-invalid-expectation___
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end
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end
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'; to fail
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end
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it will fail when expectation fails
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expect test-run <<< '
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describe foo
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it will fail
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# true is not a failure
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expect true; to fail
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end
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end
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'; to fail
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end
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it will succeed when expectation succeeds
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expect test-run <<< '
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describe foo
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it will succeed
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expect false; to fail
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end
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end
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'; to succeed
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end
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end
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describe and
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# technically, we want this to be permitted after any declaration, but
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# we do not yet support any others
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it must appear after a "'to'" declaration
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expect test-run <<< '
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describe foo
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it should fail
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expect true
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# missing "to"
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and to succeed
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end
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end
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'; to fail
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end
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it adds additional expectations to preceding declaration
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# impossible condition
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expect test-run <<< '
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describe foo
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it should fail
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expect true
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to succeed
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and to fail
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end
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end
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'; to fail
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# redundant to demonstrate that it does not always fail
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expect test-run <<< '
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describe foo
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it should fail
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expect true
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to succeed
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and to succeed
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end
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end
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'; to succeed
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end
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end
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describe be
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it cannot stand alone
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expect test-run <<< '
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describe foo
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it should fail
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expect true
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to be
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end
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end
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'; to fail
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end
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it processes arguments as if it did not exist
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expect test-run <<< '
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expected="foo bar baz"
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_expect--awesome() { shift "$2"; test "$*" == "$expected"; }
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describe foo
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it should succeed
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expect true
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# ignore the fact that this sounds awkward
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to be awesome $expected
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end
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end
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'; to succeed
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end
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end
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end
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