add res proxy wrapper tests

Author: tmountjr

__tests__/ipinfoResProxyWrapper.test.ts

@@ -0,0 +1,54 @@
+import * as dotenv from "dotenv"
+import { IPBogon, IPinfoResProxy } from "../src/common"
+import IPinfoResProxyWrapper from "../src/ipinfoResProxyWrapper"
+
+const testIfTokenIsSet = process.env.IPINFO_TOKEN ? test : test.skip
+
+beforeAll(() => {
+  dotenv.config()
+})
+
+describe("IPinfoResProxyWrapper", () => {
+  testIfTokenIsSet("lookupIp", async () => {
+    const wrapper = new IPinfoResProxyWrapper(process.env.IPINFO_TOKEN!)
+
+    for (let i = 0; i < 5; i++) {
+      const data = (await wrapper.lookupIp("139.5.0.122")) as IPinfoResProxy
+
+      expect(data.ip).toEqual("139.5.0.122")
+      expect(data.service).toBeDefined()
+      expect(typeof data.service).toBe("string")
+      expect(data.last_seen).toBeDefined()
+      expect(typeof data.last_seen).toBe("string")
+      expect(data.percent_days_seen).toBeDefined()
+      expect(typeof data.percent_days_seen).toBe("number")
+    }
+  })
+
+  testIfTokenIsSet("isBogon", async () => {
+    const wrapper = new IPinfoResProxyWrapper(process.env.IPINFO_TOKEN!)
+
+    const data = (await wrapper.lookupIp("198.51.100.1")) as IPBogon
+    expect(data.ip).toEqual("198.51.100.1")
+    expect(data.bogon).toEqual(true)
+  })
+
+  test("Error is thrown for invalid token", async () => {
+    const wrapper = new IPinfoResProxyWrapper("invalid-token")
+    await expect(wrapper.lookupIp("1.2.3.4")).rejects.toThrow()
+  })
+
+  test("Error is thrown when response cannot be parsed as JSON", async () => {
+    const baseUrlWithUnparseableResponse = "https://ipinfo.io/developers#"
+    const wrapper = new IPinfoResProxyWrapper("token", undefined, undefined, baseUrlWithUnparseableResponse)
+
+    await expect(wrapper.lookupIp("1.2.3.4")).rejects.toThrow()
+
+    const result = await wrapper
+      .lookupIp("1.2.3.4")
+      .then((_) => "parseable")
+      .catch((_) => "unparseable")
+
+    expect(result).toEqual("unparseable")
+  })
+})