initial commit

src/format.test.ts

@@ -0,0 +1,97 @@
+import test from "node:test";
+import assert from "node:assert/strict";
+import { formatFetchOutput, formatSearchOutput, truncateText } from "./format.ts";
+
+test("formatSearchOutput renders a compact metadata-only list", () => {
+  const output = formatSearchOutput({
+    providerName: "exa-main",
+    results: [
+      {
+        title: "Exa Docs",
+        url: "https://exa.ai/docs",
+        publishedDate: "2026-04-09",
+        author: "Exa",
+        score: 0.98,
+      },
+    ],
+  });
+
+  assert.match(output, /Found 1 web result via exa-main:/);
+  assert.match(output, /Exa Docs/);
+  assert.match(output, /https:\/\/exa.ai\/docs/);
+});
+
+test("formatSearchOutput shows answer and fallback provider metadata", () => {
+  const output = formatSearchOutput({
+    providerName: "exa-fallback",
+    answer: "pi is a coding agent",
+    execution: {
+      actualProviderName: "exa-fallback",
+      failoverFromProviderName: "tavily-main",
+    },
+    results: [
+      {
+        title: "pi docs",
+        url: "https://pi.dev",
+        rawContent: "Very long raw content body",
+      },
+    ],
+  } as any);
+
+  assert.match(output, /Answer: pi is a coding agent/);
+  assert.match(output, /Fallback: tavily-main -> exa-fallback/);
+});
+
+test("truncateText shortens long fetch bodies with an ellipsis", () => {
+  assert.equal(truncateText("abcdef", 4), "abc…");
+  assert.equal(truncateText("abc", 10), "abc");
+});
+
+test("formatFetchOutput includes both successful and failed URLs", () => {
+  const output = formatFetchOutput(
+    {
+      providerName: "exa-main",
+      results: [
+        {
+          url: "https://good.example",
+          title: "Good",
+          text: "This is a very long body that should be truncated in the final output.",
+        },
+        {
+          url: "https://bad.example",
+          title: null,
+          error: "429 rate limited",
+        },
+      ],
+    },
+    { maxCharactersPerResult: 20 },
+  );
+
+  assert.match(output, /Status: ok/);
+  assert.match(output, /Status: failed/);
+  assert.match(output, /429 rate limited/);
+  assert.match(output, /This is a very long…/);
+});
+
+test("formatFetchOutput shows fallback metadata and favicon/images when present", () => {
+  const output = formatFetchOutput({
+    providerName: "exa-fallback",
+    execution: {
+      actualProviderName: "exa-fallback",
+      failoverFromProviderName: "tavily-main",
+    },
+    results: [
+      {
+        url: "https://pi.dev",
+        title: "pi",
+        text: "Fetched body",
+        favicon: "https://pi.dev/favicon.ico",
+        images: ["https://pi.dev/logo.png"],
+      },
+    ],
+  } as any);
+
+  assert.match(output, /Fallback: tavily-main -> exa-fallback/);
+  assert.match(output, /Favicon: https:\/\/pi.dev\/favicon.ico/);
+  assert.match(output, /Images:/);
+});