diff --git a/.github/workflows/deno.yml b/.github/workflows/deno.yml
index ea8901c3..5736498b 100644
--- a/.github/workflows/deno.yml
+++ b/.github/workflows/deno.yml
@@ -2,6 +2,7 @@ name: deno
 
 env:
   DENO_VERSION: 1.x
+  DENOPS_PATH: "./"
 
 on:
   schedule:
diff --git a/denops/@denops/denops.ts b/denops/@denops/denops.ts
index 60c18407..648e56fe 100644
--- a/denops/@denops/denops.ts
+++ b/denops/@denops/denops.ts
@@ -84,6 +84,14 @@ export class Denops {
    * and the containing module looks like a test module.
    *
    * `fn` receive `denops` instance which communicate with real Vim/Neovim.
+   *
+   * To use this function, developer must provides the following environment variables:
+   *
+   * DENOPS_PATH      - A path to `denops.vim` for adding to Vim's `runtimepath`
+   * DENOPS_TEST_VIM  - An executable of Vim
+   * DENOPS_TEST_NVIM - An executable of Neovim
+   *
+   * Otherwise tests using this static method will be ignored.
    */
   static test(t: TestDefinition): void;
   /**
@@ -91,6 +99,14 @@ export class Denops {
    * and the containing module looks like a test module.
    *
    * `fn` receive `denops` instance which communicate with real Vim/Neovim.
+   *
+   * To use this function, developer must provides the following environment variables:
+   *
+   * DENOPS_PATH      - A path to `denops.vim` for adding to Vim's `runtimepath`
+   * DENOPS_TEST_VIM  - An executable of Vim
+   * DENOPS_TEST_NVIM - An executable of Neovim
+   *
+   * Otherwise tests using this static method will be ignored.
    */
   static test(
     mode: "vim" | "nvim",
diff --git a/denops/@denops/test/tester.ts b/denops/@denops/test/tester.ts
index ad4f6204..67fbe61d 100644
--- a/denops/@denops/test/tester.ts
+++ b/denops/@denops/test/tester.ts
@@ -2,13 +2,24 @@ import { path } from "../deps.ts";
 import { Denops } from "../denops.ts";
 import { DENOPS_TEST_NVIM, DENOPS_TEST_VIM, run } from "./runner.ts";
 
-const SCRIPT_PATH = path.fromFileUrl(new URL("cli/bypass.ts", import.meta.url));
-const DENOPS_PATH = path.fromFileUrl(new URL("../../..", import.meta.url));
+const DENOPS_PATH = Deno.env.get("DENOPS_PATH");
 
 async function withDenops(
   mode: "vim" | "nvim",
   main: (denops: Denops) => Promise<void> | void,
 ) {
+  if (!DENOPS_PATH) {
+    throw new Error("`DENOPS_PATH` environment variable is not defined");
+  }
+  const denopsPath = path.resolve(DENOPS_PATH);
+  const scriptPath = path.join(
+    denopsPath,
+    "denops",
+    "@denops",
+    "test",
+    "cli",
+    "bypass.ts",
+  );
   const listener = Deno.listen({
     hostname: "127.0.0.1",
     port: 0, // Automatically select free port
@@ -16,7 +27,7 @@ async function withDenops(
   const proc = run(mode, {
     commands: [
       `set runtimepath^=${DENOPS_PATH}`,
-      `autocmd User DenopsReady call denops#plugin#register('denops-std-test', '${SCRIPT_PATH}')`,
+      `autocmd User DenopsReady call denops#plugin#register('denops-std-test', '${scriptPath}')`,
       "call denops#server#start()",
     ],
     env: {
@@ -54,7 +65,7 @@ export type TestDefinition = Omit<Deno.TestDefinition, "fn"> & {
 export function test(t: TestDefinition): void {
   Deno.test({
     ...t,
-    ignore: (t.mode === "vim" && !DENOPS_TEST_VIM) ||
+    ignore: !DENOPS_PATH || (t.mode === "vim" && !DENOPS_TEST_VIM) ||
       (t.mode === "nvim" && !DENOPS_TEST_NVIM),
     fn: async () => {
       await withDenops(t.mode, t.fn);