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a5de2dd274
It seems that `meson test --print-errorlogs` only captures stderr, so this makes it forward the logs as intended. We might want to redirect stdout in our common setup script instead.
86 lines
3.0 KiB
Bash
86 lines
3.0 KiB
Bash
# shellcheck shell=bash
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badTestNames=()
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# Golden test support
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#
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# Test that the output of the given test matches what is expected. If
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# `_NIX_TEST_ACCEPT` is non-empty also update the expected output so
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# that next time the test succeeds.
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function diffAndAcceptInner() {
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local -r testName=$1
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local -r got="$2"
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local -r expected="$3"
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# Absence of expected file indicates empty output expected.
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if test -e "$expected"; then
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local -r expectedOrEmpty="$expected"
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else
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local -r expectedOrEmpty=characterisation/empty
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fi
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# Diff so we get a nice message
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if ! diff >&2 --color=always --unified "$expectedOrEmpty" "$got"; then
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echo >&2 "FAIL: evaluation result of $testName not as expected"
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# shellcheck disable=SC2034
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badDiff=1
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badTestNames+=("$testName")
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fi
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# Update expected if `_NIX_TEST_ACCEPT` is non-empty.
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if test -n "${_NIX_TEST_ACCEPT-}"; then
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cp "$got" "$expected"
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# Delete empty expected files to avoid bloating the repo with
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# empty files.
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if ! test -s "$expected"; then
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rm "$expected"
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fi
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fi
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}
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function characterisationTestExit() {
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# Make sure shellcheck knows all these will be defined by the caller
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: "${badDiff?} ${badExitCode?}"
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if test -n "${_NIX_TEST_ACCEPT-}"; then
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if (( "$badDiff" )); then
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set +x
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echo >&2 'Output did mot match, but accepted output as the persisted expected output.'
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echo >&2 'That means the next time the tests are run, they should pass.'
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set -x
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else
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set +x
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echo >&2 'NOTE: Environment variable _NIX_TEST_ACCEPT is defined,'
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echo >&2 'indicating the unexpected output should be accepted as the expected output going forward,'
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echo >&2 'but no tests had unexpected output so there was no expected output to update.'
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set -x
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fi
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if (( "$badExitCode" )); then
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exit "$badExitCode"
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else
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skipTest "regenerating golden masters"
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fi
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else
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if (( "$badDiff" )); then
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set +x
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echo >&2 ''
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echo >&2 'The following tests had unexpected output:'
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for testName in "${badTestNames[@]}"; do
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echo >&2 " $testName"
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done
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echo >&2 ''
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echo >&2 'You can rerun this test with:'
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echo >&2 ''
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echo >&2 " _NIX_TEST_ACCEPT=1 meson test ${TEST_NAME}"
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echo >&2 ''
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echo >&2 'to regenerate the files containing the expected output,'
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echo >&2 'and then view the git diff to decide whether a change is'
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echo >&2 'good/intentional or bad/unintentional.'
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echo >&2 'If the diff contains arbitrary or impure information,'
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echo >&2 'please improve the normalization that the test applies to the output.'
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set -x
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fi
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exit $(( "$badExitCode" + "$badDiff" ))
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fi
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}
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