Tests

\n \n \n ({prettyMilliseconds(\n Object.values(outputs).flat().reduce(\n (sum, output) => sum + output.duration,\n 0,\n ),\n )})\n \n

\n {testGroups.map((group: TestGroup) => {\n return (\n

\n output.pass).length}\n testCount={group.tests.length}\n />\n \n ({prettyMilliseconds(\n outputs[group.name].reduce(\n (sum, output) => sum + output.duration,\n 0,\n ),\n )})\n \n

\n\n {outputs[group.name].map((\n output: TestOutput,\n index: number,\n ) => (\n

\n \n {output.message && (\n {output.message}\n )}\n \n ({prettyMilliseconds(output.duration)})\n \n

\n \n {`${output.pass ? \"✓\" : \"✗\"} ${output.duration.toFixed(3)}ms`}\n \n

\n ))}\n

\n );\n })}\n

\n \n \n ,\n );\n}\n\n/**\n * Creates a test runner that displays test results as an HTML page with badges and detailed output.\n *\n * @param testGroups - Array of test groups, where each group contains a name, array of test cases, and optional before/after hooks\n * @returns A fetch-compatible handler function that runs all tests and returns an HTML response\n *\n * @example\n * ```ts\n * import { testServer } from \"https://esm.town/v/std/utils/index.ts\";\n *\n * const myTests = [{\n * name: \"Math tests\",\n * tests: [\n * { name: \"addition\", function: () => { if (1 + 1 !== 2) throw new Error(\"Math is broken\"); } },\n * { name: \"subtraction\", function: () => { if (5 - 3 !== 2) throw new Error(\"Wrong result\"); } }\n * ]\n * }];\n *\n * export default testServer(myTests);\n * ```\n */\nexport const testServer = (testGroups: TestGroup[]) => async (req: Request) => {\n const url = new URL(req.url);\n const outputs: { [groupName: string]: TestOutput[] } = {};\n\n for (const group of testGroups) {\n group.before?.();\n outputs[group.name] = await Promise.all(group.tests.map(runTest));\n group.after?.();\n }\n\n if (url.pathname === \"/badge.svg\") {\n const totalPassed =\n Object.values(outputs).flat().filter((output: TestOutput) => output.pass)\n .length;\n const totalTests = testGroups.reduce(\n (sum, group) => sum + group.tests.length,\n 0,\n );\n\n return new Response(\n renderBadge({\n label: \"Tests\",\n passedCount: totalPassed,\n testCount: totalTests,\n }),\n {\n headers: {\n \"content-type\": \"image/svg+xml;charset=UTF-8\",\n },\n },\n );\n }\n return new Response(renderTestResults(testGroups, outputs), {\n headers: {\n \"content-type\": \"text/html;charset=UTF-8\",\n },\n });\n};","deleted","label",[100],"permalink","https://www.val.town/x/peterqliu/utils/code/test.tsx","extension","actionData","errors"]