test: lock in process, ripgrep, and installation helpers

packages/opencode/test/installation/installation.test.ts

@@ -0,0 +1,47 @@
+import { afterEach, describe, expect, test } from "bun:test"
+import { Installation } from "../../src/installation"
+
+const fetch0 = globalThis.fetch
+
+afterEach(() => {
+  globalThis.fetch = fetch0
+})
+
+describe("installation", () => {
+  test("reads release version from GitHub releases", async () => {
+    globalThis.fetch = (async () =>
+      new Response(JSON.stringify({ tag_name: "v1.2.3" }), {
+        status: 200,
+        headers: { "content-type": "application/json" },
+      })) as unknown as typeof fetch
+
+    expect(await Installation.latest("unknown")).toBe("1.2.3")
+  })
+
+  test("reads scoop manifest versions", async () => {
+    globalThis.fetch = (async () =>
+      new Response(JSON.stringify({ version: "2.3.4" }), {
+        status: 200,
+        headers: { "content-type": "application/json" },
+      })) as unknown as typeof fetch
+
+    expect(await Installation.latest("scoop")).toBe("2.3.4")
+  })
+
+  test("reads chocolatey feed versions", async () => {
+    globalThis.fetch = (async () =>
+      new Response(
+        JSON.stringify({
+          d: {
+            results: [{ Version: "3.4.5" }],
+          },
+        }),
+        {
+          status: 200,
+          headers: { "content-type": "application/json" },
+        },
+      )) as unknown as typeof fetch
+
+    expect(await Installation.latest("choco")).toBe("3.4.5")
+  })
+})