| 1 | #!/usr/bin/env bash |
| 2 | # Hermetic test for scripts/release/ensure-release-on-main.sh. |
| 3 | set -euo pipefail |
| 4 | |
| 5 | script_dir="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)" |
| 6 | guard="${script_dir}/ensure-release-on-main.sh" |
| 7 | |
| 8 | work="$(mktemp -d)" |
| 9 | cleanup() { rm -rf "${work}"; } |
| 10 | trap cleanup EXIT |
| 11 | |
| 12 | fail=0 |
| 13 | check() { |
| 14 | local desc="$1" needle="$2" hay |
| 15 | hay="$(cat)" |
| 16 | if grep -qF -- "${needle}" <<<"${hay}"; then |
| 17 | echo "ok - ${desc}" |
| 18 | else |
| 19 | echo "FAIL - ${desc}" |
| 20 | echo " expected to find: ${needle}" |
| 21 | echo "------ output ------" |
| 22 | echo "${hay}" |
| 23 | echo "--------------------" |
| 24 | fail=1 |
| 25 | fi |
| 26 | } |
| 27 | |
| 28 | mkdir -p "${work}/repo/scripts/release" |
| 29 | cp "${guard}" "${work}/repo/scripts/release/ensure-release-on-main.sh" |
| 30 | guard="${work}/repo/scripts/release/ensure-release-on-main.sh" |
| 31 | |
| 32 | cd "${work}/repo" |
| 33 | export GIT_CONFIG_GLOBAL=/dev/null GIT_CONFIG_SYSTEM=/dev/null |
| 34 | git init -q -b main . |
| 35 | git config user.name "Release Test" |
| 36 | git config user.email "release-test@example.com" |
| 37 | |
| 38 | commit() { |
| 39 | echo "$2" >"$1" |
| 40 | git add -A |
| 41 | git commit -q -m "$3" |
| 42 | } |
| 43 | |
| 44 | commit README.md "base" "base" |
| 45 | base_sha="$(git rev-parse HEAD)" |
| 46 | |
| 47 | git init -q --bare "${work}/origin.git" |
| 48 | git remote add origin "${work}/origin.git" |
| 49 | git push -q -u origin main |
| 50 | |
| 51 | # Prove the guard fetches origin/main when the remote-tracking ref is absent. |
| 52 | git update-ref -d refs/remotes/origin/main |
| 53 | base_out="$(bash "${guard}" "${base_sha}" 2>&1)" |
| 54 | check "main commit is accepted after fetching origin/main" \ |
| 55 | "is reachable from origin/main" <<<"${base_out}" |
| 56 | |
| 57 | git switch -q -c release-only |
| 58 | commit release.txt "branch-only" "branch-only release work" |
| 59 | release_sha="$(git rev-parse HEAD)" |
| 60 | |
| 61 | set +e |
| 62 | reject_out="$(bash "${guard}" "${release_sha}" 2>&1)" |
| 63 | reject_ec=$? |
| 64 | set -e |
| 65 | check "branch-only commit is rejected" \ |
| 66 | "is not reachable from origin/main" <<<"${reject_out}" |
| 67 | if [[ "${reject_ec}" -ne 1 ]]; then |
| 68 | echo "FAIL - branch-only commit should exit 1, got ${reject_ec}" |
| 69 | fail=1 |
| 70 | else |
| 71 | echo "ok - branch-only commit exits non-zero" |
| 72 | fi |
| 73 | |
| 74 | git switch -q main |
| 75 | git merge -q --ff-only release-only |
| 76 | git push -q origin main |
| 77 | git update-ref -d refs/remotes/origin/main |
| 78 | merged_out="$(bash "${guard}" "${release_sha}" 2>&1)" |
| 79 | check "commit is accepted after release branch lands on main" \ |
| 80 | "is reachable from origin/main" <<<"${merged_out}" |
| 81 | |
| 82 | echo |
| 83 | if [[ "${fail}" -eq 0 ]]; then |
| 84 | echo "ensure-release-on-main.test.sh: all checks passed" |
| 85 | else |
| 86 | echo "ensure-release-on-main.test.sh: FAILURES above" |
| 87 | fi |
| 88 | exit "${fail}" |
| 89 |