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ageYears);\n return formatDate(dob);\n}\n\ninterface AgeBoundary {\n ages: number[];\n label: string;\n passes: boolean;\n}\n\nfunction ageBoundaries(\n cutoffType: CutoffType,\n ageValue: number,\n ageValue2?: number,\n): AgeBoundary[] {\n switch (cutoffType) {\n case \"<\":\n return [\n { ages: [ageValue - 1], label: `age ${ageValue - 1} (below <${ageValue}, passes)`, passes: true },\n { ages: [ageValue], label: `age ${ageValue} (at threshold, fails <${ageValue})`, passes: false },\n { ages: [ageValue + 1], label: `age ${ageValue + 1} (above threshold, fails)`, passes: false },\n ];\n case \"<=\":\n return [\n { ages: [ageValue - 1], label: `age ${ageValue - 1} (below threshold, passes)`, passes: true },\n { ages: [ageValue], label: `age ${ageValue} (at threshold, passes <=${ageValue})`, passes: true },\n { ages: [ageValue + 1], label: `age ${ageValue + 1} (above threshold, fails)`, passes: false },\n ];\n case \">\":\n return [\n { ages: [ageValue + 1], label: `age ${ageValue + 1} (above >${ageValue}, passes)`, passes: true },\n { ages: [ageValue], label: `age ${ageValue} (at threshold, fails >${ageValue})`, passes: false },\n { ages: [ageValue - 1], label: `age ${ageValue - 1} (below threshold, fails)`, passes: false },\n ];\n case \">=\":\n return [\n { ages: [ageValue], label: `age ${ageValue} (at threshold, passes >=${ageValue})`, passes: true },\n { ages: [ageValue - 1], label: `age ${ageValue - 1} (below threshold, fails)`, passes: false },\n { ages: [ageValue + 1], label: `age ${ageValue + 1} (above threshold, passes)`, passes: true },\n ];\n case \"range_lo_inc\": {\n const lo = ageValue;\n const hi = ageValue2 ?? ageValue + 1;\n return [\n { ages: [lo], label: `age ${lo} (at lower bound, passes)`, passes: true },\n { ages: [Math.floor((lo + hi) / 2)], label: `age ${Math.floor((lo + hi) / 2)} (midpoint, passes)`, passes: true },\n { ages: [hi], label: `age ${hi} (at upper bound, fails)`, passes: false },\n ];\n }\n case \"range_hi_inc\": {\n const lo = ageValue;\n const hi = ageValue2 ?? ageValue + 1;\n return [\n { ages: [lo], label: `age ${lo} (at lower bound, fails)`, passes: false },\n { ages: [Math.floor((lo + hi) / 2)], label: `age ${Math.floor((lo + hi) / 2)} (midpoint, passes)`, passes: true },\n { ages: [hi], label: `age ${hi} (at upper bound, passes)`, passes: true },\n ];\n }\n }\n}\n\ninterface IncomeBoundary {\n income: number;\n label: string;\n passes: boolean;\n}\n\nfunction incomeBoundaries(\n cutoffType: CutoffType,\n fplYear: FPLYear,\n fplPct: number,\n fplPct2: number | undefined,\n hhSize: number,\n): IncomeBoundary[] {\n const threshold = fplDollar(fplYear, fplPct, hhSize);\n const threshold2 = fplPct2 != null ? fplDollar(fplYear, fplPct2, hhSize) : undefined;\n const step = 100;\n\n switch (cutoffType) {\n case \"<\":\n return [\n { income: threshold - step, label: `$${(threshold - step).toLocaleString()} (below ${fplPct}% FPL, passes)`, passes: true },\n { income: threshold, label: `$${threshold.toLocaleString()} (at ${fplPct}% FPL, fails <)`, passes: false },\n { income: threshold + step, label: `$${(threshold + step).toLocaleString()} (above ${fplPct}% FPL, fails)`, passes: false },\n ];\n case \"<=\":\n return [\n { income: threshold - step, label: `$${(threshold - step).toLocaleString()} (below, passes)`, passes: true },\n { income: threshold, label: `$${threshold.toLocaleString()} (at ${fplPct}% FPL, passes <=)`, passes: true },\n { income: threshold + step, label: `$${(threshold + step).toLocaleString()} (above, fails)`, passes: false },\n ];\n case \">\":\n return [\n { income: threshold + step, label: `$${(threshold + step).toLocaleString()} (above ${fplPct}% FPL, passes)`, passes: true },\n { income: threshold, label: `$${threshold.toLocaleString()} (at ${fplPct}% FPL, fails >)`, passes: false },\n { income: threshold - step, label: `$${(threshold - step).toLocaleString()} (below, fails)`, passes: false },\n ];\n case \">=\":\n return [\n { income: threshold, label: `$${threshold.toLocaleString()} (at ${fplPct}% FPL, passes >=)`, passes: true },\n { income: threshold - step, label: `$${(threshold - step).toLocaleString()} (below, fails)`, passes: false },\n { income: threshold + step, label: `$${(threshold + step).toLocaleString()} (above, passes)`, passes: true },\n ];\n case \"range_lo_inc\": {\n const hi = threshold2 ?? threshold + 1000;\n const mid = Math.round((threshold + hi) / 2);\n return [\n { income: threshold, label: `$${threshold.toLocaleString()} (at lower bound ${fplPct}%, passes)`, passes: true },\n { income: mid, label: `$${mid.toLocaleString()} (midpoint, passes)`, passes: true },\n { income: hi, label: `$${hi.toLocaleString()} (at upper bound ${fplPct2}%, fails)`, passes: false },\n ];\n }\n case \"range_hi_inc\": {\n const hi = threshold2 ?? threshold + 1000;\n const mid = Math.round((threshold + hi) / 2);\n return [\n { income: threshold, label: `$${threshold.toLocaleString()} (at lower bound, fails)`, passes: false },\n { income: mid, label: `$${mid.toLocaleString()} (midpoint, passes)`, passes: true },\n { income: hi, label: `$${hi.toLocaleString()} (at upper bound ${fplPct2}%, passes)`, passes: true },\n ];\n }\n }\n}\n\nfunction booleanCombinations(keys: string[]): Record[] {\n if (keys.length === 0) return [{}];\n const n = keys.length;\n const combos: Record[] = [];\n for (let mask = 0; mask < 2 ** n; mask++) {\n const combo: Record = {};\n for (let i = 0; i < n; i++) {\n combo[keys[i]] = Boolean(mask & (1 << i));\n }\n combos.push(combo);\n }\n return combos;\n}\n\n// ── Main generator ────────────────────────────────────────────────────────────\n\nexport function generateTestCases(config: AppConfig): TestCase[] {\n const now = new Date();\n const pad = (n: number) => String(n).padStart(2, \"0\");\n const timestamp = `${now.getFullYear()}-${pad(now.getMonth() + 1)}-${pad(now.getDate())} ${pad(now.getHours())}:${pad(now.getMinutes())}:${pad(now.getSeconds())}`;\n\n const hhSize = config.program.numAdults + config.program.numChildren;\n const numChildren = config.program.numChildren;\n\n // 1. ZIP scenarios\n const zipScenarios = [\n ...config.location.validZips.map((z) => ({ zip: z, zipPasses: true, zipLabel: `valid ZIP ${z}` })),\n { zip: config.location.invalidZip, zipPasses: false, zipLabel: `invalid ZIP ${config.location.invalidZip}` },\n ];\n\n // 2. Income scenarios (3)\n const incomeScenarios = incomeBoundaries(\n config.income.cutoffType,\n config.income.fplYear,\n config.income.fplPct,\n config.income.fplPct2,\n hhSize,\n );\n\n // 3. Age cutoff reference date\n const cutoffDate = (() => {\n if (config.age.cutoffMonth && config.age.cutoffDay) {\n return new Date(now.getFullYear(), config.age.cutoffMonth - 1, config.age.cutoffDay);\n }\n return new Date(now.getFullYear(), 11, 31);\n })();\n\n const ageScenarios = config.age.enabled\n ? ageBoundaries(config.age.cutoffType, config.age.ageValue, config.age.ageValue2)\n : [{ ages: [] as number[], label: \"age: N/A\", passes: true }];\n\n // 4. Pregnant\n const pregnantScenarios = config.pregnant.enabled ? [true, false] : [false];\n\n // 5. Benefits combinations\n const applicableKeys: string[] = [];\n if (config.benefits.tanf) applicableKeys.push(\"tanf\");\n if (config.benefits.ssi) applicableKeys.push(\"ssi\");\n if (config.benefits.snap) applicableKeys.push(\"snap\");\n if (config.benefits.homelessness) applicableKeys.push(\"homelessness\");\n if (config.benefits.fosterCare) applicableKeys.push(\"fosterCare\");\n const benefitsCombos = booleanCombinations(applicableKeys);\n\n // ── Cross-product ──────────────────────────────────────────────────────────\n const cases: TestCase[] = [];\n let id = 1;\n\n for (const zipS of zipScenarios) {\n for (const incS of incomeScenarios) {\n for (const ageS of ageScenarios) {\n for (const pregnantS of pregnantScenarios) {\n for (const benefitsCombo of benefitsCombos) {\n // Derive children DOBs from boundary ages\n const childDOBs: string[] = [];\n if (config.age.enabled && ageS.ages.length > 0) {\n for (let i = 0; i < numChildren; i++) {\n const age = ageS.ages[i % ageS.ages.length];\n childDOBs.push(dobFromAge(age, cutoffDate));\n }\n } else {\n for (let i = 0; i < numChildren; i++) {\n childDOBs.push(dobFromAge(5, cutoffDate));\n }\n }\n\n // Build requirement label\n const reqParts: string[] = [];\n reqParts.push(`ZIP: ${zipS.zipLabel}`);\n reqParts.push(`Income: ${incS.label}`);\n if (config.age.enabled) reqParts.push(`Age: ${ageS.label}`);\n if (config.pregnant.enabled) reqParts.push(`Pregnant: ${pregnantS}`);\n if (applicableKeys.length > 0) {\n const bParts = applicableKeys.map((k) => `${k}=${benefitsCombo[k]}`).join(\", \");\n reqParts.push(`Benefits: [${bParts}]`);\n }\n\n const eligible =\n zipS.zipPasses &&\n incS.passes &&\n (config.age.enabled ? ageS.passes : true);\n\n cases.push({\n id: id++,\n date: timestamp,\n program: config.program.programName || \"(unnamed)\",\n requirementTested: reqParts.join(\" | \"),\n postal_code: zipS.zip,\n children_DOBs: childDOBs.join(\", \"),\n household_size: hhSize,\n household_total_income: incS.income,\n household_working_boolean: false,\n pregnant: config.pregnant.enabled ? pregnantS : null,\n tanf: config.benefits.tanf ? (benefitsCombo[\"tanf\"] ?? false) : null,\n ssi: config.benefits.ssi ? (benefitsCombo[\"ssi\"] ?? false) : null,\n snap: config.benefits.snap ? (benefitsCombo[\"snap\"] ?? false) : null,\n homelessness: config.benefits.homelessness ? (benefitsCombo[\"homelessness\"] ?? false) : null,\n foster_care: config.benefits.fosterCare ? (benefitsCombo[\"fosterCare\"] ?? false) : null,\n expected_eligible: eligible,\n });\n }\n }\n }\n }\n }\n\n return cases;\n}\n\n// ── Export helpers ────────────────────────────────────────────────────────────\n\nexport function toCSV(cases: TestCase[]): string {\n if (cases.length === 0) return \"\";\n const headers = Object.keys(cases[0]) as (keyof TestCase)[];\n const escape = (v: unknown) => {\n if (v === null || v === undefined) return \"\";\n const s = String(v);\n return s.includes(\",\") || s.includes('\"') || s.includes(\"\\n\")\n ? `\"${s.replace(/\"/g, '\"\"')}\"`\n : s;\n };\n const rows = cases.map((c) => headers.map((h) => escape(c[h])).join(\",\"));\n return [headers.join(\",\"), ...rows].join(\"\\n\");\n}\n\nexport function toJSON(cases: TestCase[]): string {\n return JSON.stringify(cases, null, 2);\n}\n","deleted","label",[178,179,161],"frontend","lib","permalink","https://www.val.town/x/sam_sepiol/test-case-generator/code/frontend/lib/permutations.ts","extension","ts","actionData","errors"]