feat(epic-execute): UI flow execution - Playwright spec generation + run
Second half of the contract execution engine (held on branch per bundle plan). - generate_playwright_spec: translate ui.flows into a Playwright spec - goto / getByTestId click+fill (with getByLabel/getByRole/getByText fallback), visible/hidden/text/url assertions, role-based storageState for allowed/ forbidden checks; persistence is delegated to backend cases - run_ui_flows: generate the spec, run it via the project's `npx playwright test --reporter=json`, and parse results - parse_playwright_report: read stats.unexpected + failed titles into CONTRACT_EXEC_FAILURES for the fix loop - _pw_locator (testid → label → role → text) and _ts_safe helpers Tested: spec generation for the canonical "create a quote" allowed flow + a "viewer cannot" forbidden flow produces correct TS; report parsing handles pass and fail. Live browser execution needs the real app + browser binaries. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
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Caleb
parent
9c7d850736
commit
c45d4fa875
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@ -175,3 +175,177 @@ run_backend_cases() {
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[ "$failures" -gt 0 ] && return 1
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return 0
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}
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# =============================================================================
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# UI Flow Execution (Playwright)
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# =============================================================================
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# Resolve a Playwright locator expression from a selector node, preferring a
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# data-testid and falling back to accessible label/role/text.
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# Arguments:
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# $1 - harness file
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# $2 - yq path to the selector map (e.g. .ui.flows[0].steps[1].click)
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_pw_locator() {
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local h="$1" node="$2"
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local testid label role text
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testid=$(yq "${node}.testid // \"\"" "$h" 2>/dev/null)
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label=$(yq "${node}.label // \"\"" "$h" 2>/dev/null)
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role=$(yq "${node}.role // \"\"" "$h" 2>/dev/null)
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text=$(yq "${node}.text // \"\"" "$h" 2>/dev/null)
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if [ -n "$testid" ] && [ "$testid" != "null" ]; then
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echo "page.getByTestId('$testid')"
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elif [ -n "$label" ] && [ "$label" != "null" ]; then
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echo "page.getByLabel('$label')"
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elif [ -n "$role" ] && [ "$role" != "null" ]; then
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echo "page.getByRole('$role')"
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elif [ -n "$text" ] && [ "$text" != "null" ]; then
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echo "page.getByText('$text')"
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else
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echo "page.locator('body')"
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fi
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}
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# Strip single quotes from a value so it is safe inside a generated TS string.
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_ts_safe() { printf '%s' "${1//\'/}"; }
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# Generate a Playwright spec file from the harness ui.flows.
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# Arguments:
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# $1 - harness file
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# $2 - output spec path
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generate_playwright_spec() {
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local h="$1" out="$2"
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local base_url n
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base_url=$(yq '.ui.base_url // ""' "$h" 2>/dev/null)
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n=$(yq '.ui.flows | length' "$h" 2>/dev/null)
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case "$n" in ''|null) n=0 ;; esac
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{
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echo "// AUTO-GENERATED by epic-execute contract gate. Do not edit by hand."
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echo "import { test, expect } from '@playwright/test';"
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echo ""
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local i
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for ((i = 0; i < n; i++)); do
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local fp="ui.flows[$i]"
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local name role expect_kind
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name=$(_ts_safe "$(yq ".$fp.name // \"flow-$i\"" "$h" 2>/dev/null)")
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role=$(yq ".$fp.as_role // \"\"" "$h" 2>/dev/null)
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expect_kind=$(yq ".$fp.expect // \"allowed\"" "$h" 2>/dev/null)
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echo "test.describe('$name', () => {"
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if [ -n "$role" ] && [ "$role" != "null" ]; then
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# Convention: the ui.roles[<role>].seed produces this auth state.
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echo " test.use({ storageState: 'playwright/.auth/$role.json' });"
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fi
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echo " test('$expect_kind', async ({ page }) => {"
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# Steps
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local sn s
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sn=$(yq ".$fp.steps | length" "$h" 2>/dev/null); case "$sn" in ''|null) sn=0 ;; esac
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for ((s = 0; s < sn; s++)); do
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local key
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key=$(yq ".$fp.steps[$s] | keys | .[0]" "$h" 2>/dev/null)
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case "$key" in
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goto)
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local p; p=$(_ts_safe "$(yq ".$fp.steps[$s].goto" "$h" 2>/dev/null)")
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echo " await page.goto('$base_url$p');"
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;;
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click)
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echo " await $(_pw_locator "$h" ".$fp.steps[$s].click").click();"
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;;
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fill)
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local v; v=$(_ts_safe "$(yq ".$fp.steps[$s].fill.value // \"\"" "$h" 2>/dev/null)")
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echo " await $(_pw_locator "$h" ".$fp.steps[$s].fill").fill('$v');"
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;;
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esac
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done
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# Assertions
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local an a
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an=$(yq ".$fp.assert | length" "$h" 2>/dev/null); case "$an" in ''|null) an=0 ;; esac
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for ((a = 0; a < an; a++)); do
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local key
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key=$(yq ".$fp.assert[$a] | keys | .[0]" "$h" 2>/dev/null)
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case "$key" in
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visible) echo " await expect($(_pw_locator "$h" ".$fp.assert[$a].visible")).toBeVisible();" ;;
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hidden) echo " await expect($(_pw_locator "$h" ".$fp.assert[$a].hidden")).toBeHidden();" ;;
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text)
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local t; t=$(_ts_safe "$(yq ".$fp.assert[$a].text.value // \"\"" "$h" 2>/dev/null)")
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echo " await expect($(_pw_locator "$h" ".$fp.assert[$a].text")).toContainText('$t');"
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;;
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url)
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local u; u=$(_ts_safe "$(yq ".$fp.assert[$a].url // \"\"" "$h" 2>/dev/null)")
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echo " await expect(page).toHaveURL(/$u/);"
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;;
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persisted)
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echo " // persistence is verified via backend cases (datastore.verify_command)"
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;;
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esac
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done
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echo " });"
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echo "});"
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echo ""
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done
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} > "$out"
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}
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# Parse a Playwright JSON report; append failed flow titles to
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# CONTRACT_EXEC_FAILURES. Returns 1 if any test failed.
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parse_playwright_report() {
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local report="$1"
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command -v jq >/dev/null 2>&1 || return 0
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[ -f "$report" ] || { CONTRACT_EXEC_FAILURES+="- UI flows: no Playwright report produced"$'\n'; return 1; }
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local unexpected
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unexpected=$(jq '.stats.unexpected // 0' "$report" 2>/dev/null || echo 0)
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unexpected=$(printf '%s' "$unexpected" | tr -d '[:space:]'); [ -z "$unexpected" ] && unexpected=0
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if [ "$unexpected" -gt 0 ]; then
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local titles
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titles=$(jq -r '[.. | objects | select(.ok? == false and .title != null) | .title] | unique[]' "$report" 2>/dev/null || echo "")
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while IFS= read -r t; do
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[ -z "$t" ] && continue
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CONTRACT_EXEC_FAILURES+="- UI flow failed: $t"$'\n'
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done <<< "$titles"
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return 1
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fi
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return 0
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}
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# Generate + run the UI flows via the project's Playwright. Environment must be
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# up. Returns 0 if all flows pass, 1 on failure.
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run_ui_flows() {
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local h="$1"
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local driver
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driver=$(yq '.ui.driver // "playwright"' "$h" 2>/dev/null)
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if [ "$driver" != "playwright" ]; then
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log_warn "UI flow execution supports Playwright only in v1 (driver: $driver) - skipping"
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return 0
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fi
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local n
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n=$(yq '.ui.flows | length' "$h" 2>/dev/null)
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case "$n" in ''|null|0) return 0 ;; esac
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local tests_dir spec report
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tests_dir=$(yq '.ui.tests_dir // "e2e"' "$h" 2>/dev/null)
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spec="$PROJECT_ROOT/$tests_dir/contract-flows.generated.spec.ts"
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report="$PROJECT_ROOT/.contract-pw-report.json"
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mkdir -p "$(dirname "$spec")"
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generate_playwright_spec "$h" "$spec"
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log "Generated Playwright spec: $spec"
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( cd "$PROJECT_ROOT" && npx playwright test "$tests_dir/contract-flows.generated.spec.ts" --reporter=json ) \
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> "$report" 2>>"${LOG_FILE:-/dev/null}" || true
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if parse_playwright_report "$report"; then
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log_success " UI flows passed"
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return 0
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fi
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log_error " UI flows failed"
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return 1
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}
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