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Factor out a bit more language testings infra

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Will be used in a second test after `lang.sh`.
This commit is contained in:
John Ericson 2024-06-23 15:33:45 -04:00
parent df068734ac
commit 490ca93cf8
7 changed files with 82 additions and 67 deletions
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0
tests/functional/lang/empty.exp
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33
tests/functional/lang/framework.sh
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@ -1,33 +0,0 @@
# Golden test support
#
# Test that the output of the given test matches what is expected. If
# `_NIX_TEST_ACCEPT` is non-empty also update the expected output so
# that next time the test succeeds.
function diffAndAcceptInner() {
local -r testName=$1
local -r got="$2"
local -r expected="$3"
# Absence of expected file indicates empty output expected.
if test -e "$expected"; then
local -r expectedOrEmpty="$expected"
else
local -r expectedOrEmpty=lang/empty.exp
fi
# Diff so we get a nice message
if ! diff --color=always --unified "$expectedOrEmpty" "$got"; then
echo "FAIL: evaluation result of $testName not as expected"
badDiff=1
fi
# Update expected if `_NIX_TEST_ACCEPT` is non-empty.
if test -n "${_NIX_TEST_ACCEPT-}"; then
cp "$got" "$expected"
# Delete empty expected files to avoid bloating the repo with
# empty files.
if ! test -s "$expected"; then
rm "$expected"
fi
fi
}