Update installer.test.ts

Author: BSKY

__tests__/installer.test.ts

@@ -1,17 +1,12 @@
-import io = require("@actions/io");
-import fs = require("fs");
-import os = require("os");
-import path = require("path");
+import * as io from "@actions/io";
+import * as path from "path";
+import * as installer from "../src/installer";
 
 const toolDir = path.join(__dirname, "runner", "tools");
 const tempDir = path.join(__dirname, "runner", "temp");
-const dataDir = path.join(__dirname, "data");
 
 process.env["RUNNER_TOOL_CACHE"] = toolDir;
 process.env["RUNNER_TEMP"] = tempDir;
-import * as installer from "../src/installer";
-
-const IS_WINDOWS = process.platform === "win32";
 
 describe("installer tests", () => {
   beforeAll(async () => {
@@ -30,6 +25,5 @@ describe("installer tests", () => {
 
   it("Acquires opam source", async () => {
     await installer.getOpam("2.0.5");
-    const OCamldir = path.join(toolDir, "opam", "2.0.5", os.arch());
   }, 1000000);
 });